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  • 201.
    Johansson, Cecilia
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Bergström, Hans
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    An Auxiliary tool to determine the height of the boundary layer2005In: Boundary-Layer Meteorology, Vol. 115, p. 423-432Article in journal (Refereed)
    Abstract [en]

    Results from radiosoundings, performed both over land and over sea, show that the ascent rate of a radiosounding balloon, the vertical velocity of the balloon, can be used to determine the height of the boundary layer. In many cases the balloon has a higher ascent rate in the boundary layer and a lower, less variable, ascent rate above. The decrease in ascending velocity appears as a jump at the top of the boundary layer. Two examples of potential temperature profiles for unstable stratification and one profile for stable conditions are shown with the corresponding ascent rates. A comparison between the boundary-layer height determined from potential temperature profiles and from ascent rates is presented for a larger dataset. The different ascent rates of the balloon in the boundary layer and above can be explained by a decrease in drag on the balloon in combination with a lowering of the critical Reynolds number in the boundary layer caused by turbulence. Hence, by simply logging the time from release of a radiosonde, it is possible to obtain additional information that can be used to estimate the height of both the unstable and stable boundary layers.

  • 202.
    Johansson, Cecilia
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. luft- och vattenlära.
    Bergström, Hans
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. luft- och vattenlära.
    Variabilitet i vindens energiinnehåll över Skandinavien mellan 1900-20002004Report (Other scientific)
    Abstract [en]

    Från mitten av 1980-talet och framåt visar dansk statistik att vindens relativa energiinnehåll, baserat på elproduktion hos vindkraftverk, har minskat kraftigt med ca 20 procentenheter. Denna nedgång verifieras av vindmätningar i höga master (1981-1992) och från elproduktion hos vindkraftverk i södra Sverige (1992-). Nedgången i södra Sverige är dock inte lika kraftig som i Danmark. För att få ett längre perspektiv på vindens relativa energiinnehåll har den geostrofiska vinden från 1900-2000 beräknats för 8 olika områden över Skandinavien utifrån lufttrycksdata. Resultaten från den geostrofiska vinden stämmer bra överens med den danska studien och tillgängliga mätningar från södra Sverige. De visar att vindes relativa energiinnehåll både varierar i rummet och i tiden. För Skandinavien finns i medeltal ingen långsiktig trend i vindens relativa energiinnehåll under perioden 1900-2000. Variationer på ±10 procentenheter i vindens relativa energiinnehåll kan i medeltal anses normala, men mellan individuella år är inte variationer på 30 procentenheter ovanliga.

  • 203.
    Johansson, Cecilia
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. Luft- och vattenlära.
    Bergström, Hans
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. Luft- coh vattenlära.
    Variability in the energy content of the wind over Scandinavia, a 101-year perspective2004In: 2004 European Wind Energy Conference (2004 EWEC), Scientific Proceenings: Conference & Exhibition, 22-25 Nowember, London , UK, 2004, p. 138-Conference paper (Refereed)
    Abstract [en]

    Statistics on the relative energy content of the wind from Denmark, based on energy production of wind turbines, shows for the resent 15 years a drastic decrease of about 20%. To get a longer perspective of the relative energy content of the wind, the geostrophic wind have been calculated from 1900 to 2000 for 8 regions in Scandinavia, including Denmark. The results show that there is a spatial variation as well as a temporal variation in the relative energy content of the wind. As a mean for Scandinavia no long- term trend in the relative energy content of the wind could be found. A variation of ±10% in the relative energy content of the wind is to be considered normal, and between individual years a variation up to 30% in not unusual.

  • 204.
    Johansson, Cecilia
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. Luft- och vattenlära.
    Hennemuth, Barbara
    Bösenberg, Jens
    Linné, Holger
    Smedman, Ann-Sofi
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. Luft- och vattenlära.
    Double-layer structure in the boundary layer over the Baltic Sea2005In: Boundary Layer Meteorology, ISSN 0006-8314, Vol. 114, no 2, p. 389-412Article in journal (Refereed)
    Abstract [en]

    Double-layered structures found over the Baltic Sea are investigated using radiosoundings and lidar measurements. Situations with double-layer structures are also simulated with the regional model REMO in a realistic manner. The double layer consists of two adjacent well-mixed layers, with a sharp inversion in between.

    Results from radiosoundings show that the double-layer structure over the Baltic Sea mainly occurs during the autumn with thermally unstable stratification near the surface. The structure is present in about 50% of the radiosoundings performed during autumn. The presence of the double-layer structure cannot be related to any specific wind direction, wind speed or sea surface temperature.

    The lidar measurements give a more continuous picture of the time evolution of the double layer structure, and show that the top of the lower layer is not a rigid lid for vertical transport.

    Two possible explanations of the double-layer structure are given, (i) the structure is caused by ‘advection’ of land boundary-layer air over the convective marine boundary layer or, (ii) by

    development of Sc clouds in weak frontal zones connected to low pressure systems. Also the forming of Cu clouds is found to be important for the development of a double-layer structure.

  • 205.
    Johansson, Cecilia
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Smedman, Ann-Sofi
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Bergström, Hans
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Gryning, Sven-Erik
    Influence from boundary layer height on the turbulence structure in the marine atmospheric surface layer over the Baltic Sea2004In: ACTA UNIVERSITATIS UPSALIENSIS: Comprehensive Summaries of Uppsala Dissertations from Faculty of Science and Technology, Vol. 792Article in journal (Refereed)
  • 206.
    Johansson, Cecilia
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Smedman, Ann-Sofi
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Högström, Ulf
    Replay to 'A critical test of the validity of Monin- Obulkhov similarity theory during convective conditions2001In: J. Atm. Sci., Vol. 59, p. 2608-2614Article in journal (Refereed)
  • 207.
    Johansson, Cecilia
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Smedman, Ann-Sofi
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Högström, Ulf
    Brasseur, James
    A critical test of the validity of Monin-Obukhov similarity during convective conditions2001In: J. Atm. Sci., Vol. 58, p. 1549-1566Article in journal (Refereed)
  • 208.
    Johansson, Håkan
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences.
    Brolin, Angelica
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences.
    Håkanson, Lars
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    New approaches to the modelling of lake basin morphometry2007In: Environmental Modelling and Assessment, ISSN 1420-2026, E-ISSN 1573-2967, Vol. 12, no 3, p. 213-228Article in journal (Refereed)
    Abstract [en]

    In lake modelling, a general and useful method of describing variations in area and volume with depth is of fundamental importance to describe processes and properties that change vertically within a given lake. In this work, two mathematical approaches to describe the shape of a lake basin are introduced and tested against empirical data. The two methods require only three easily available input parameters: maximum depth, surface area and volume. The first method is based on a traditional morphometric parameter, the volume development (V d), and the second method on the new hypsographic development parameter (H d). Both methods give area and volume at any depth of a lake and can furthermore be used to estimate lake bottom slopes. Comparisons with empirical area–depth and volume–depth distribution curves from 105 lakes that cover a wide range of lake morphometric characteristics have revealed that the two methods give very satisfactory results. The V d-model yields r 2-values of 0.924 and 0.907 for area and volume description with lake depth, respectively. The corresponding r 2-values for the H d-model are 0.988 and 0.996, respectively. Using the H d-model, an approach has also been developed to test when and by how much it is necessary to correct the empirical volume of a lake given the number of measured strata and basin shape.

  • 209. Jones, Phil D.
    et al.
    Briffa, K.R.
    Osborn, T.J.
    Moberg, Anders
    Bergström, Hans
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Relationships between circulation strength and the variability of growing-season and cold-season climate in northern and central Europe2002In: The Holocene, Vol. 12, no 6, p. 643-656Article in journal (Refereed)
  • 210.
    Jonsell, Ulf
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Hansson, Margareta E.
    Siggard-Andresen, Marie-Louise
    Steffensen,, Jörgen-Peder
    Comparison of northern and central Greenland ice core records of methanesulfonate covering the last glacial period2007In: Journal of Geophysical Research, ISSN 0148-0227, E-ISSN 2156-2202, Vol. 112, no D14, p. D14313-D14313.11Article in journal (Refereed)
    Abstract [en]

    Methanesulfonate (MS-) is measured in ice cores with the objective to obtain a proxy record of marine phytoplankton production of dimethylsulfide (DMS). We present a continuous MS- record covering the last glacial period from the North Greenland Ice Core Project (NGRIP) ice core and compare this record with the corresponding records previously presented from Greenland and, in particular, with the GISP2 ice core located 320 km south of NGRIP. Despite that the records have similar mean concentrations, their responses to climatic changes during the last glacial period are slightly different. NGRIP MS- concentrations were higher during the cold marine isotopic stages (MIS) 2 and 4 and lower during the warm MIS 5. This long-term trend in MS-, which is similar to the inverse of the corresponding trend in δ 18O, is not detected in the GISP2 MS- record. A systematic response in MS- concentrations to changes between Greenland stadials and interstadials is only detected in the GISP2 record. The different responses of the MS- signals to climate change during the last glacial period are possibly related to the partitioning of air masses reaching the two sites. In contrast to observations from Antarctic records, dust concentrations do not affect the MS- concentrations in the ice, whereas the deposition of sulfate probably is enhanced by high dust concentrations in the atmosphere. The MS- signal has a higher potential of being a proxy record of DMS production changes in Greenlandic compared to Antarctic ice cores.

  • 211.
    Jonsell, Ulf
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Hansson, Margareta
    Mörth, Carl-Magnus
    Correlation between concentrations of acids and oxygen isotope ratios in polar surface snow caused by local redeposition2007In: Tellus. Series B, Chemical and physical meteorology, ISSN 0280-6509, E-ISSN 1600-0889, Vol. 59, no 2, p. 326-335Article in journal (Refereed)
    Abstract [en]

    Investigation of centimeter-scale snow surface chemistry has been carried out at two polar sites with different site characteristics–in Dronning Maud Land, Antarctica and on the Greenland ice sheet, respectively. Large variations in both impurity content and stable oxygen isotope ratios (δ18O) were found on the submeter scale. δ18O and the concentration of nitrate correlated at both sites (r = 0.81 and 0.82, respectively). At the Antarctic site, δ18O is also correlated to concentrations of methanesulphonate (r = 0.84) and sulphate (r = 0.83) while no such correlation exists at the Greenland site. Instead, a strong anticorrelation (r = –0.85) between sulphate and methanesulphonate is found among the samples from the Greenland site. The ions correlating with δ18O at the two sites were probably deposited as acids. Our tentative explanation is that local redeposition of water vapour enriching the snow surface with the lighter isotopes is associated with simultaneous enhanced scavenging of the acids. The responsible process thereby significantly alters the chemical signals of the snow surface.

  • 212.
    Karlsson, O. Magnus
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Richardson, John S.
    Kiffney, Peter M.
    Modelling organic matter dynamics in headwater streams of south-western British Columbia, Canada2005In: Ecological Modelling, Vol. 183, p. 463-476Article in journal (Refereed)
  • 213.
    Kellner, Erik
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. Air and Water Science.
    Wetlands – different types, their properties and functions2004Report (Other scientific)
  • 214.
    Kellner, Erik
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Waddington, J.M.
    Price, J.S.
    Dynamics of biogenic gas bubbles in peat: Potential effects on water storage and peat deformation2005In: Water Resources Research, Vol. 41, no 8, p. W08417-Article in journal (Refereed)
  • 215.
    Keogh, Sinead
    et al.
    School of Physics, University College Dublin.
    Aldahan, Ala
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Possnert, Göran
    Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Ion Physics.
    Finegan, P.
    School of Physics, University College Dublin.
    Vintro, L
    School of Physics, University College Dublin.
    Mitchel, P
    School of Physics, University College Dublin.
    Trends in the spatial and temporal distribution of 129I and 99Tc in coastal waters surrounding Ireland using Fucus vesiculosus as a bio-indicator2007In: Journal of Environmental Radioactivity, ISSN 0265-931X, E-ISSN 1879-1700, Vol. 95, no 1, p. 23-38Article in journal (Refereed)
    Abstract [en]

    Spatial and temporal trends in 129I and 99Tc concentrations around the Irish coastline have been evaluated using Fucus vesiculosus as a bio-indicator. 129I concentrations in a recent set of seawater samples have also been recorded and reveal an identical spatial pattern. Concentrations of 129I in Fucus from the northeast coast of Ireland proved to be at least two orders of magnitude higher than concentrations in Fucus from the west coast. The 129I content of Fucus increased significantly between 1985 and 2003, in line with increases in discharges of 129I from the Sellafield nuclear reprocessing plant. Similar trends were observed in the case of 99Tc. 129I/99Tc ratios in Irish seawater were deduced from the Fucus data, and compared to ratios in discharges from Sellafield and from the French reprocessing plant at Cap de la Hague. Levels of 129I and 99Tc in Fucus from the west coast were found to be enhanced with respect to levels in seaweeds from other regions in the Northern Hemisphere unaffected by discharges from nuclear installations such as those referred to.

  • 216.
    Kiselman, Christer
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Mathematics and Computer Science, Department of Mathematics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Mathematics and Computer Science, Department of Mathematics, Mathematics I -V. Earth Sciences, Department of Earth Sciences, Air and Water Science. Physics, Department of Physics and Materials Science, Theoretical Physics. Faculty of Science and Technology, Biology, Department of Cell and Molecular Biology, Microbiology.
    Halldin, Sven
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Mathematics and Computer Science, Department of Mathematics, Mathematics I -V. Earth Sciences, Department of Earth Sciences, Air and Water Science. Physics, Department of Physics and Materials Science, Theoretical Physics. Faculty of Science and Technology, Biology, Department of Cell and Molecular Biology, Microbiology.
    Danielsson, Ulf
    Department of Theoretical Physics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Mathematics and Computer Science, Department of Mathematics, Mathematics I -V. Earth Sciences, Department of Earth Sciences, Air and Water Science. Physics, Department of Physics and Materials Science, Theoretical Physics. Faculty of Science and Technology, Biology, Department of Cell and Molecular Biology, Microbiology.
    Carlson, Karin
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Mathematics and Computer Science, Department of Mathematics, Mathematics I -V. Earth Sciences, Department of Earth Sciences, Air and Water Science. Physics, Department of Physics and Materials Science, Theoretical Physics. Faculty of Science and Technology, Biology, Department of Cell and Molecular Biology, Microbiology.
    Mattsson, Amalia
    Rutberg, Martin
    "Svenska språket dör ut på landets universitet": DN - Debatt2005In: Dagens Nyheter, no 2005-06-17Article in journal (Other (popular scientific, debate etc.))
  • 217.
    Kolstrup, E
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Water-borne macroscopic plant particle transport through central and northern Europe during warming phases: a hypothetical spreading mechanism for climatic pioneers2007In: GFF, ISSN 1103-5897, E-ISSN 2000-0863, Vol. 129, no 4, p. 307-313Article in journal (Refereed)
    Abstract [en]

    This paper presents a new hypothesis on spreading and immigration of pioneer plants. It is speculated that during phases of sudden climate warming, seeds and other parts of plants were transported by rivers from central Europe into the North Sea and the Baltic areas and drifted on to surrounding shores. Some parts have remained in the records as macrofossils, while in other cases the plants are proposed to have continued their life cycle in the new areas. The principle is illustrated by,examples from different areas and times: Weichselian Lateglacial finds in NW Germany suggest that tree trunks were brought northward. For central and northern Sweden exceptionally strong glacio-isostatic rebound could have followed pronounced land surface depression after the ice-sheet meltings. This would have transformed coasts to land quickly, promoting the growth of seeds and plants in areas that are now far inland. If this hypothesis is valid it can explain the presence of anomalously early, warm vegetations in newly deglaciated areas. The rapidity of water-borne immigration following a climatic warming can also open up for a possibility of quick immigration to other former near-coast areas and river banks in Europe. Based on an example of a warmth requiring palaeovegetation at Vrogum in Denmark and the fact that trees survived in central Europe during the coldest part of the Weichselian it is suggested that short-lived, palaeobotanically hitherto unknown warm phases might be worth looking for in the terrestric records.

  • 218.
    Kolstrup, Else
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Lateglacial older and younger coversand in northwest Europe: Chronology and relation to climate and vegetation2007In: Boreas, ISSN 0300-9483, E-ISSN 1502-3885, Vol. 36, no 1, p. 65-75Article in journal (Refereed)
    Abstract [en]

    Dutch, Belgian, German and Danish Lateglacial localities with both coversand and well-dated organic deposits are used to relate older and younger coversand development to changes in climate and vegetation. The number of well-dated coversand sequences in northwest Europe is low, but it appears that the transition from older to younger coversand was asynchronous and spanned Bølling sensu stricto to late Allerød, so there is no clear single cause for the change in grain-size composition of the sediment. Aeolian activity took place during all parts of the Lateglacial and seems to have continued well into the Holocene. The effect of changing temperatures is mainly reflected indirectly as periods with denser vegetation, especially forest, that led to reduced coversand net-accumulation. The outline proposes that the lithostratigraphic position of a peat layer cannot be used as an Allerød marker because even a well-developed peat layer within coversands may differ in age from one area to the next. The combined coversand and vegetation development shows that local conditions were important for the accumulation and preservation of sediments.

  • 219.
    Kolstrup, Else
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    OSL dating in palaeoenvironmental reconstructions: A discussion from a user's perspective2007In: Estonian Journal of Earth Sciences, ISSN 1736-4728, Vol. 56, no 3, p. 157-166Article in journal (Refereed)
    Abstract [en]

    Four studies with series of OSL dated aeolian sediments are outlined and used for a discussion of the reliability of this dating method in palaeoenvironmental reconstructions. The OSL ages form series controlled by interfingering radiocarbon ages, historical records or relative position of the samples. A locality dated by a thermoluminescence method is also included. The examples range from subrecent to more than 200 kyr. It is suggested that in most cases the precision and accuracy of the OSL method are insufficient for the establishment of detailed, late Quaternary stratigraphies and associated palaeoenvironmental reconstructions. It is suggested to start a discussion on the potentials and limitations of luminescence dating.

  • 220. Konya, Keiko
    et al.
    Hock, Regine
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Naruse, Renji
    Temperature lapse rates and surface energy balance at Storglaciären, northern Sweden2007In: Glacier Mass Balance Changes and Meltwater Discharge, Wallingford: IAHS , 2007, Vol. 318, p. 186-194Conference paper (Refereed)
    Abstract [en]

    A detailed meteorological experiment, including the operation of several automatic weather stations on and outside the glacier, was performed on Storglaciären, a valley glacier in Sweden, in summer 2003. On average, near surface air temperature lapse rates derived from several weather stations on the glacier were –6.0 ± 3.5°C km-1, indicating strong temporal variability. We found no correlation with meteorological variables as a base for param-eterization in melt modelling. Surface energy balance computations showed that, on average, net radiation is the largest contributor to melt energy, in agreement with previous studies. Latent heat fluxes were positive throughout the simulation period indicating condensation. It was not possible to constrain roughness lengths within several orders of magnitudes, since the differences in modelled melt for all cases were still within the range of uncertainty pertinent to the melt measurements during the 13-day period of coincident meteorolo-gical and melt measurements.

  • 221. Krecek, Josef
    et al.
    Turek, Jan
    Ljungren, Eric
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Stuchlik, Evzen
    Sporka, Ferdinand
    Hydrological processes in small catchments of mountain headwater lakes: The Tatra Mountains2006In: Biologia (Bratislava), ISSN 0006-3088, E-ISSN 1336-9563, Vol. 61, p. S1-S10Article in journal (Refereed)
    Abstract [en]

    This study evaluates runoff and different methods for the estimation of water balance and runoff genesis in four small alpine catchments, which lie outside the standard network of hydrological and climate networks. These test catchments, whose size ranges between 2.3 and 110 ha, are located above the timberline at elevations between 1,784 and 2,380 m. Their land surfaces consist of lakes, rock formations, debris deposits, and alpine meadows. Hydrological data were collected for the water year 2001. The catchments were instrumented by three automatic weather stations recording global and net solar radiation, air temperature, humidity, precipitation, and soil temperature. Lake water levels were registered with staff gauges and runoff evaluated from water storage calculations. Runoff genesis was investigated by means of chemical tracers (Rhodamine WT and Lithium chloride). Hydrological process estimations were made using standard methods including: the input of precipitation and snowmelt, both potential and actual evaporation, which was estimated by the approaches of HAMON, PRIESTLEY-TAYLOR, PENMAN and GRINDLEY, and runoff calculated from the lake storage, were compared with results of the conceptual hydrological BROOK90 model. The empirical results show that hydrological processes are governed by the temperature-dependent regime of high mountain snowmelt. However, the major differences in water yield and runoff genesis between watersheds were due to differences in the morphologies of the lakes and their basins, the soil-vegetation complex, and runoff routing. Evaluating approaches to estimation, PENMAN's combination of both aerodynamic and energy balance method provides the best fit to observed data with observed evapotranspiration being 78 to 99% of the potential calculated. The deterministic BROOK90 model is effective for precipitation-runoff genesis studies in small headwater catchments. In the L'adove pleso basin predicted and observed water yield show close correlation. The annual sum of actual evapotranspiration calculated by BROOK90 (352 mm) corresponds closely to that estimated by the approach of Penman (386 mm).

  • 222.
    Krishna Prasad, M. Bala
    et al.
    School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India.
    Ramanathan, A.L.
    School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India.
    Shrivastav, Sunil Kr.
    School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India.
    Anshumali,
    School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India.
    Saxena, Rajinder
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Metal fractionation studies in surfacial and core sediments in the Achankovil River basin in India2006In: Environmental Monitoring & Assessment, ISSN 0167-6369, E-ISSN 1573-2959, Vol. 121, no 1-3, p. 77-102Article in journal (Refereed)
    Abstract [en]

    The Fractionation of Fe, Zn, Cu, Pb, Mn and Cd in the sediments of the Achankovil River, Western Ghats, India using a sequential extraction method was carried out to understand the metal availability in the basin for biotic and abiotic activities. Spatial distribution of heavy metals has been studied. Sediment grain size has significant control over the heavy metal distribution. The fluctuations in their concentration partly depend upon the lithology of the river basin and partly the anthropogenic activities. The sediments are dominated by sand and are moderately to strongly positively skewed and are very leptokurtotic in nature. The quartzite and feldspars are abundant minerals along with significant amount of mica with low clay content. The core sediments show increasing trend of heavy metal concentration with depth due to the recent addition of anthropogenic sources and post-diagenic activities. Significant amount of Cd (18%) was found in carbonate fraction, which may pose environmental problems due to its toxic nature. Small concentrations of metals, except Cd and Cu, are in exchangeable fraction, which indicate low bio-availability. Enrichment Factor (EF) for individual metals shows the contribution from terrregious and in part from anthropogenic sources. Selective Sequential Extraction (SSE) study shows the variation in specific metal distribution pattern, their distribution in different phases and their bio-availability. Maximum amount of the metals were bound to the non-residual fractions (mainly Fe-oxides). Overall, bio-availability of these micronutrients from sediments seems to be very less. Non-residual phase is the most important phase for majority of heavy metals studied. Among the non-residual fraction, maximum amount of the heavy metals bound to Fe-oxides. The study high lights the need for in-depth study of heavy metals distribution and fractionation in the smaller river basins to get precise information on the behavior and transport of heavy metals in the fluvial environment and their contribution to the world ocean.

  • 223. Kuusela-Lahtinen, A.
    et al.
    Niemi, A.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. LUVA.
    Luukkonen, A.
    Flow Dimension as an Indicator of Hydraulic Behavior in Site Characterization of Fractured Rock2003In: Groundwater, Vol. 3, no 4, p. 333-341Article in journal (Refereed)
  • 224.
    Källstrand, Birgitta
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Bergström, Hans
    The wind climate in an arctic mountain valley2000In: 14th AMS Symposium on Boundary Layer and Turbulence. Aspen, Colorado, USA, 7-11 August 2000, 2000Conference paper (Other scientific)
  • 225.
    Källstrand, Birgitta
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Bergström, Hans
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Hojstrup, J
    Smedman, Ann-Sofi
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Mesoscale wind field modifications over the Baltic Sea2000In: BOUNDARY-LAYER METEOROLOGY, ISSN 0006-8314, Vol. 95, no 2, p. 161-188Article in journal (Refereed)
    Abstract [en]

    For two consecutive days during spring 1997, the wind field over the Baltic Sea has been studied. The strength of the geostrophic wind speed is the major difference in synoptic conditions between these two days. During both days, the mesoscale wind field

  • 226.
    Larsson, Conny
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Air and Water Science. Luft- och vattenlära.
    Vindkraft och god ljudmiljö.2004Report (Other (popular science, discussion, etc.))
    Abstract [en]

    Slutsatser och rekommendationer

    Vid lokalisering av verksamhet som påverkar på miljön ställs ibland skilda miljöeffekter mot varann. Med exemplet från Rämma i Älvdalen belyses hur vindkraftsetablering ställs mot ljudmiljö. Lokalisering av verksamhet innebär förändring av kulturell miljö, landskapet, sysselsättning och många aspekter.

    Beslut i denna typ av frågor bör lyftas upp på en nationell nivå för att säkerställa att beslut tas ur ett nationellt perspektiv. Lokala åsikter och planering från kommun, landsting och boende vägs in. Experter med kompetens inom olika områdena utnyttjas för att det beslutande organet skall kunna ta ett helhetsgrep i frågan. Målsättningen är dessutom att handläggningstiden hålls nere.

    Specifikt i frågan om etablering av vindkraft bör detta beredas av en nämnd som bereder ärendet för handläggning i miljödomstolen eller högre instans. Beslut på en övergripande nationell nivå bör eftersträvas där verksamhet tillåts på vissa platser och en orörd miljö bevaras på andra.

    För vindkraftens del skulle därvid vindkraft och god ljudmiljö kunna kombineras.

  • 227. Launiainen et al., Jouko
    et al.
    Smedman, Ann-Sofi
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Baltic Air-Sea-Ice Study - a marine winter study of Baltex2002In: Boreal Enviromental Research, Vol. 7, p. 371-378Article in journal (Refereed)
  • 228.
    Lindgren, Dan
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. LUVAL.
    Mass-balance modelling and GIS-based data analysis as tools to improve coastal management2007Licentiate thesis, monograph (Other scientific)
  • 229.
    Lindgren, Dan
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. LUVAL.
    Håkanson, Lars
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. LUVAL.
    Suggested coastal zone typology for the generalized case study.: Deliverable D6.2.6.2007Report (Other scientific)
  • 230. Lundberg, A.
    et al.
    Nakai, Y.
    Thunehed, H.
    Halldin, Sven
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. Air and Water Science.
    Snow accumulation in forests from ground and remote-sensing data.2004In: Hydrological Processes, Vol. 18, p. 1941-1955Article in journal (Refereed)
  • 231.
    Lundin, Lars-Christer
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. Air and Water Science.
    Hydrologin i vägkropp: Bygg bättre och billigare skogsbilvägar på rätt plats!2004In: Konferens på skogsmästarskolan i Skinnskatteberg 20-21 april 2004.: GIS-institutet i Gävle, Skogsvårdsstyrelsen i Dalarna-Gävle och SLU Skogsmästarskolan. Flik 5., 2004Conference paper (Other (popular scientific, debate etc.))
  • 232.
    Lundin, Lars-Christer
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Air and Water Science. Baltic University Programme.
    Sustainable water management – a master-course format2004Conference paper (Refereed)
    Abstract [en]

    Management of scars water resources has increasingly come into focus over the last decade, e.g. through the EU Water Framework Directive. This development calls for broader education of water managers, giving e.g., hydrology and environmental engineering students insights into societal sectors and practical planning issues. Starting in 1997, a course format for solving this problem has been developed by the Baltic University Programme (BUP). The use of “format” in this context should be interpreted as a context and a recipe for production. The course format thus consists of a textbook, study and examination questions and procedures, coordinated videoconferences, teacher’s and student’s conferences, a common homepage, and a mentor to support teachers giving the courses; all coordinated by the BUP Secretariat. Recently, an international distance learning course, developing the format, has also been given at Uppsala University. The course format has since 1998 been implemented, i.e., courses in Sustainable Water Management have been given, at some 30 universities in the Baltic Sea catchment with some 400 students yearly. The objective of this presentation is to describe the development of the course format, the format itself and to evaluate the courses given accordingly after the first five years (1998 2003).

  • 233.
    Lundin, Lars-Christer
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. Air and Water Science.
    Sustainable Water Management in the Baltic Sea Basin. 1. The Waterscape.2004Book (Refereed)
  • 234.
    Lundin, Lars-Christer
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Sustainable Water Management in the Baltic Sea Basin.: 2. Water Use and Management.2004 (ed. 3)Book (Other academic)
  • 235.
    Lundin, Lars-Christer
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Air and Water Science. Air and Water Science.
    Sustainable Water Management in the Baltic Sea Basin. 3. River Basin Management.: River Basin Management2000Book (Other academic)
  • 236.
    Lundin, Lars-Christer
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Hansson, Klas
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Water and heat flow in a road construction2004Conference paper (Refereed)
    Abstract [en]

    Construction of new roads and maintenance of old ones are major undertakings in infrastructure management. Our wish for safe, comfortable and rapid road transportation has increased, creating new demands on road construction and maintenance. Road deterioration is costly for society and for transportation companies. The Swedish National Road Authority has thus invested large resources in developing a road deterioration model, in order to improve road construction and maintenance. A crucial factor for road deterioration is the ability to withstand the wear of passing vehicles. Since this ability is greatly decreased by moisture in the road construction, water and heat flow (to be able to account for freezing/thawing) modelling has become an important issue. As a part of this work, a freezing and thawing routine has been implemented in the HYDRUS1D/2D model codes. The routine has been tested in a laboratory column freezing experiment and in a hypothetical road situation, using climate data from northern Sweden. The objective of this presentation is to point out the need for hydrological contributions to road research and review potential models of water and heat flow to be used in this context, including the newly developed HYDRUS2D model code, including freezing and thawing routines.

  • 237. Lyons, T
    et al.
    Halldin, Sven
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. Air and Water Science.
    Surface heterogeneity and the spatial variation of fluxes2004In: Agricultural and Forest Meteorology, Vol. 121, p. 153-165Article in journal (Refereed)
  • 238. Lücke, Sofie
    et al.
    Öhlander, Jenny
    Rivera, Ana T.F.
    Hylander, Lars D.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. Luft- och vattenlära.
    Evaluation of a new method using magnetic sluices for mercury-free small-scale gold mining in the Philippines.2006In: Abstracts of Eighth International Conference on Mercury as a Global Pollutant, 2006, p. 574-Conference paper (Other scientific)
    Abstract [en]

    Approximately 100 000 people are involved in small-scale gold mining a in the Philippines. They mainly use the amalgamation and/or cyanidation processes. The use of mercury started in the 1980’s, when the price of gold went up. The workers live in the

    same place as they work, they do not use safety equipment and the tailings are generally left anywhere. The concentrations of mercury in drinking water, soils, sediments, tailings and fish near gold mining operations exceed in general national and international limits.

    The aim of this study was to evaluate a new method for gold recovery, suitable for smallscale miners and in which mercury, cyanide or other chemicals are not used. Interviews with some miners were also performed in order to understand the complex situation from a miner’s perspective and evaluate the possibilities to improve the situation. The gold separation method, Cleangold (US patent granted in July 1999, #5,927,508) is developed

    by David Plath, USA, and uses magnetism to create riffles in a simple sluice, for a physical separation of gold from grains with lower density. The study was performed at five different sites in the Philippines (Diwalwal, Mainit, Acupan, Balatoc and Paracale).

    The gold recovery from the different sites varied both between and within the sites. The highest recovery was obtained in Balatoc (73%) and the lowest in Acupan with a top value of 15%. In comparison, the recovery using the amalgamation method is generally between 25 and 50% at the sites and at cyanidation estimated to approximately 90%. The chances of reducing the use of mercury are large, for example by adding mercury in the final step only, while panning, in case the magnetic sluices cannot completely replace amalgamation. In conclusion: the miners want and need a change. The obstacles for development are lack of technology and knowledge, unstable economy, habits and the fact that mercury and cyanide are easily accessible on the market. Further, for development and adaptation of environmentally benign methods, stricter control/legislation and accessible loans/micro credits to the miners are important. Industrial countries could play an important role by transferring appropriate knowledge rather than mercury.

  • 239. Maag, Jakob
    et al.
    Maxson, Peter
    Hansen, E.
    Hylander, Lars D.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. Luft- och vatten (LUVA).
    "Mercury Substitution Priority Work-list" - An Input to Global Considerations on Mercury Management2006In: Abstracts of Eighth International Conference on Mercury as a Global Pollutant, 2006, p. 574-Conference paper (Other scientific)
    Abstract [en]

    Awareness of proper management of mercury containing products and development of mercury free al-ternatives has over the last decades emerged in many industrialized countries, where mercury was earlier used with no or few restrictions. Recent reviews have shown that suitable alternatives are readily available for most mercury applications in products and processes. This indicates that there is presently a real opportunity to minimize the use of most mercury containing products, and thereby markedly minimize mercury releases. In spite of reductions in mercury consumption in many countries, a

    number of applications are still being used on a routine basis with consequent mercury releases through their life cycle - production, use and disposal/recycling - with resulting needs for effort and investment in control initiatives. Many mercury containing products have long lives, meaning that proper life cycle management with separate collection and specific waste treatment will continue to be important even several decades after a potential cessation of introducing mercury containing products on the market. Available evidence also indicates that in some parts of the world, where the pressure for mercury substitution has been weaker, mercury containing products are still widely used. This presentation discusses the need for continued efforts addressing intentional mercury use in products and processes on a global market, and provides - based on an expert assessment - the authors input to a global "Mercury substitution priority work-list" taking into consideration recent reviews of alternatives and examples of existing agreements and

    national legislation where prioritizations are made. This is done in the hope of initiating and informing a discussion of a common vision for mercury substitution, bridging national and regional differences. The substitution priority list is a contribution to current global discussions of measures to reduce mercury releases.

  • 240. Magnusson, Mikael
    et al.
    Krieg, Roland
    Nord, Margitta
    Bergström, Hans
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. luft och vattenlära.
    Effektvariationer av vindkraft – En studie av vindenergiproduktionens tidsvariation2004Report (Other (popular scientific, debate etc.))
    Abstract [en]

    Vid en utbyggnad av vindkraft enligt de mål som har fastlagts från regeringshåll, om en

    installerad effekt av 4000 MW vindkraft till 2010, behövs underlag för att kunna

    bedöma vilket regleringsbehov som krävs vid ett sådant scenario. I denna rapport

    presenteras en studie där vinddata för en tioårsperiod har studerats och effektvariationen

    med tiden har analyserats för i huvudsak ett vindenergiutbyggnadsscenario, där

    installerad effekt har fördelats inom tre regioner. Två ytterlighetsscenarier till detta

    scenario har också berörts. Vidare har tre delstudier behandlats där representativiteten

    av data har studerats, sensivitet av vindvariationer på subgridskala och jämförelse av

    beräknade resultat mot uppmätta från en befintlig vind farm. I den fjärde studien tar upp

    frågan om tidsvariationer på kortare skala än en timme.

  • 241. Mahrt, Larry
    et al.
    Vickers, Dean
    Fredricksson, Peter
    Smedman, Ann-Sofi
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. Air and water science.
    Sea-surface aerodynamic roughness2003In: J. Geophys. Res., Vol. 108, no C6, p. 3171-3185Article in journal (Refereed)
  • 242.
    Malmaeus, J. Mikael
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. Faculty of Science and Technology, Biology, Department of Ecology and Evolution, Limnology. LUVA.
    Blenckner, Thorsten
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. Faculty of Science and Technology, Biology, Department of Ecology and Evolution, Limnology. LUVA.
    Markensten, Hampus
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. Faculty of Science and Technology, Biology, Department of Ecology and Evolution, Limnology. Limnologi.
    Persson, I
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. Faculty of Science and Technology, Biology, Department of Ecology and Evolution, Limnology. Limnologi.
    Lake phosphorus dynamics and climate warming: A mechanistic model approach2005In: Ecological Modelling, Vol. 190, p. 1-14Article in journal (Refereed)
  • 243.
    Malmaeus, J. Mikael
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. Faculty of Science and Technology, Biology, Department of Ecology and Evolution, Limnology. LUVA.
    Rydin, Emil
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. Faculty of Science and Technology, Biology, Department of Ecology and Evolution, Limnology. Limnologi.
    A time-dynamic phosphorus model for profundal sediments of Lake Erken, Sweden.2006In: Aquat. Sci.,, Vol. 68, p. 16-27Article in journal (Refereed)
  • 244.
    Malmaeus, J.M.
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Faculty of Science and Technology, Biology, Department of Ecology and Evolution, Limnology. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. LUVA.
    Blenckner, T.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Faculty of Science and Technology, Biology, Department of Ecology and Evolution, Limnology. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. LUVA.
    Markensten, H.
    Faculty of Science and Technology, Biology, Department of Ecology and Evolution, Limnology. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. Limnologi.
    Persson, I.
    Faculty of Science and Technology, Biology, Department of Ecology and Evolution, Limnology. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. Limnologi.
    Lake phosphorus dynamics and climate warming: A mechanistic model approach.2006In: Ecol. Modelling, Vol. 190, p. 1-14Article in journal (Refereed)
  • 245.
    Malmaeus, J.M.
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. LUVA.
    Håkanson, Lars
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. LUVA.
    Development of a lake eutrophication model.2004In: Ecol. Modelling, Vol. 171, p. 35-63Article in journal (Refereed)
  • 246. Malmström, Maria
    et al.
    Gleisner, Magdalena
    Herbert, Roger
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science. Luft- och vattenlära.
    Element discharge from sulfidic mine tailings at limited oxygen availability2006In: Applied Geochemistry, Vol. 12, p. 184-202Article in journal (Refereed)
  • 247. Mathew, M.
    et al.
    Illangasekare, T.H.
    Fagerlund, Fritjof
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Niemi, Auli
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Sensitivity of model parameter in the prediction of DNAPL infiltration and redistribution in heterogeneous porous media2005In: Eos, Transaction, American Geophysical Union 86(52): Fall Meeting Supplement, Abstract H23A-1420, American Geophysical Union (AGU), 2005Conference paper (Refereed)
  • 248.
    Mathew, Mini
    et al.
    Colorado School of Mines.
    Illangesekare, Tissa
    Colardo School of Mines.
    Fagerlund, Fritjof
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    Niemi, Auli
    Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, LUVAL.
    Parameter Sensitivity in the Prediction of DNAPL Infiltration and Redistribution in Heterogeneous Porous Media2006In: CMWR XVI - Computational Methods in Water Resources, 2006Conference paper (Refereed)
  • 249. Mattsson, Amalia
    et al.
    Kiselman, Christer
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Mathematics and Computer Science, Department of Mathematics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Mathematics and Computer Science, Department of Mathematics, Mathematics I -V. Faculty of Science and Technology, Biology, Department of Cell and Molecular Biology, Microbiology. Earth Sciences, Department of Earth Sciences, Air and Water Science. Physics, Department of Physics and Materials Science, Theoretical Physics.
    Carlson, Karin
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Mathematics and Computer Science, Department of Mathematics, Mathematics I -V. Faculty of Science and Technology, Biology, Department of Cell and Molecular Biology, Microbiology. Earth Sciences, Department of Earth Sciences, Air and Water Science. Physics, Department of Physics and Materials Science, Theoretical Physics.
    Rutberg, Martin
    Halldin, Sven
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Mathematics and Computer Science, Department of Mathematics, Mathematics I -V. Faculty of Science and Technology, Biology, Department of Cell and Molecular Biology, Microbiology. Earth Sciences, Department of Earth Sciences, Air and Water Science. Physics, Department of Physics and Materials Science, Theoretical Physics.
    Danielsson, Ulf
    Department of Theoretical Physics. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Mathematics and Computer Science, Department of Mathematics, Mathematics I -V. Faculty of Science and Technology, Biology, Department of Cell and Molecular Biology, Microbiology. Earth Sciences, Department of Earth Sciences, Air and Water Science. Physics, Department of Physics and Materials Science, Theoretical Physics.
    Utbildningens internationalisering och demokratin2005In: Quartilen, Vol. 20, no 3, p. 15-16Article in journal (Other (popular scientific, debate etc.))
  • 250. Michnowski, Stanislaw
    et al.
    Israelsson, Sven
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Earth Sciences, Department of Earth Sciences, Air and Water Science.
    The Polar Ground Level Electric Field and Current Variations in Relation to Solar Wind Variations2007In: International conference on Atmospheric electricity ICAE 2007, 2007, p. 4-Conference paper (Refereed)
2345678 201 - 250 of 387
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