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  • 1.
    Mård Karlsson, Johanna
    et al.
    Stockholms universitet, Institutionen för naturgeografi och kvartärgeologi (INK).
    Bring, Arvid
    Stockholms universitet, Institutionen för naturgeografi och kvartärgeologi (INK).
    Peterson, Garry D.
    Stockholms universitet, Stockholm Resilience Centre.
    Gordon, Line J.
    Stockholms universitet, Stockholm Resilience Centre.
    Destouni, Georgia
    Stockholms universitet, Institutionen för naturgeografi och kvartärgeologi (INK).
    Opportunities and limitations to detect climate-related regime shifts in inland Arctic ecosystems through eco-hydrological monitoring2011In: Environmental Research Letters, ISSN 1748-9326, E-ISSN 1748-9326, Vol. 6, no 1, p. 014015-Article in journal (Refereed)
    Abstract [en]

    This study has identified and mapped the occurrences of three different types of climate-driven and hydrologically mediated regime shifts in inland Arctic ecosystems: (i) from tundra to shrubland or forest, (ii) from terrestrial ecosystems to thermokarst lakes and wetlands, and (iii) from thermokarst lakes and wetlands to terrestrial ecosystems. The area coverage of these shifts is compared to that of hydrological and hydrochemical monitoring relevant to their possible detection. Hotspot areas are identified within the Yukon, Mackenzie, Barents/Norwegian Sea and Ob river basins, where systematic water monitoring overlaps with ecological monitoring and observed ecosystem regime shift occurrences, providing opportunities for linked eco-hydrological investigations that can improve our regime shift understanding, and detection and prediction capabilities. Overall, most of the total areal extent of shifts from tundra to shrubland and from terrestrial to aquatic regimes is in hydrologically and hydrochemically unmonitored areas. For shifts from aquatic to terrestrial regimes, related water and waterborne nitrogen and phosphorus fluxes are relatively well monitored, while waterborne carbon fluxes are unmonitored. There is a further large spatial mismatch between the coverage of hydrological and that of ecological monitoring, implying a need for more coordinated monitoring efforts to detect the waterborne mediation and propagation of changes and impacts associated with Arctic ecological regime shifts.

  • 2. Prowse, T.
    et al.
    Bring, Arvid
    Stockholms universitet, Institutionen för naturgeografi.
    Mård, Johanna
    Stockholms universitet, Institutionen för naturgeografi.
    Carmack, E.
    Holland, M.
    Instanes, A.
    Vihma, T.
    Wrona, F. J.
    Arctic Freshwater Synthesis: Summary of key emerging issues2015In: Journal of Geophysical Research - Biogeosciences, ISSN 2169-8953, E-ISSN 2169-8961, Vol. 120, no 10, p. 1887-1893Article in journal (Refereed)
    Abstract [en]

    In response to a joint request from the World Climate Research Program's Climate and Cryosphere Project, the International Arctic Science Committee, and the Arctic Council's Arctic Monitoring and Assessment Program an updated scientific assessment has been conducted of the Arctic Freshwater System (AFS), entitled the Arctic Freshwater Synthesis (AFS(sigma)). The major reason behind the joint request was an increasing concern that changes to the AFS have produced, and could produce even greater, changes to biogeophysical and socioeconomic systems of special importance to northern residents and also produce extra-Arctic climatic effects that will have global consequences. The AFS(sigma) was structured around six key thematic areas: atmosphere, oceans, terrestrial hydrology, terrestrial ecology, resources, and modeling, the review of each coauthored by an international group of scientists and published as separate manuscripts in this special issue of Journal of Geophysical Research-Biogeosciences. This AFS(sigma) summary manuscript reviews key issues that emerged during the conduct of the synthesis, especially those that are cross-thematic in nature, and identifies future research required to address such issues.

  • 3. Prowse, Terry
    et al.
    Bring, Arvid
    Stockholms universitet, Institutionen för naturgeografi.
    Mård, Johanna
    Stockholms universitet, Institutionen för naturgeografi.
    Carmack, Eddy
    Arctic Freshwater Synthesis: Introduction2015In: Journal of Geophysical Research - Biogeosciences, ISSN 2169-8953, E-ISSN 2169-8961, Vol. 120, no 11, p. 2121-2131Article in journal (Refereed)
    Abstract [en]

    In response to a joint request from the World Climate Research Program’s Climate and Cryosphere Project, the International Arctic Science Committee, and the Arctic Council’s Arctic Monitoring and Assessment Program, an updated scientific assessment has been conducted of the Arctic Freshwater System, entitled the Arctic Freshwater Synthesis (AFS). The major reason for joint request was an increasing concern that changes to the Arctic Freshwater System have produced, and could produce even greater, changes to biogeophysical and socioeconomic systems of special importance to northern residents and also produce extra-Arctic climatic effects that will have global consequences. Hence, the key objective of the AFS was to produce an updated, comprehensive, and integrated review of the structure and function of the entire Arctic Freshwater System. The AFS was organized around six key thematic areas: atmosphere, oceans, terrestrial hydrology, terrestrial ecology, resources and modeling, and the review of each coauthored by an international group of scientists and published as separate articles in this special section of Journal of Geophysical Research: Biogeosciences. This Introduction reviews the motivations for, and foci of, previous studies of the Arctic Freshwater System, discusses criteria used to define the domain of the Arctic Freshwater System, and details key characteristics of the definition adopted for the AFS. 

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