Clouds and beryllium-7
2010 (English)In: Nuclear Instruments and Methods in Physics Reseach B, ISSN 0168-583X, Vol. 268, no 7-8, 1129-1134 p.Article in journal (Refereed) Published
We present a 10-year record of 10 different cloud cover types at three different locations in Scandinavia together with Be-7 surface concentration data. The aim is to estimate the degree of correlation, if any, between various cloud types at different latitudes and measured Be-7 concentrations. The study matches weekly Be-7 data to cloud raster data from high resolution multispectral satellite sensors recorded on a monthly basis between 1991 and 2001. The results are presented as a Be-7 correlation coefficient and show a consistent pattern with small variations across the latitudes and rather large variations between the different cloud classes. The strongest coherence is inverse and associated with Be-7 and high-level clouds (cumulonimbus and nimbostratus), generally, at low latitudes while mid-level clouds (altocumulus, altostratus and cumulus congestus) show little (insignificant) correlation. Despite variable correlation trends, merging of the two data sets has proven valuable in order to understand aerosols-Be-7 (and likely Be-10) correlation to different cloud types.
Place, publisher, year, edition, pages
2010. Vol. 268, no 7-8, 1129-1134 p.
Cloud cover, Beryllium, Cosmogenic isotopes, SCANDIA model
Physical Sciences Earth and Related Environmental Sciences
IdentifiersURN: urn:nbn:se:uu:diva-136902DOI: 10.1016/j.nimb.2009.10.116ISI: 000277462300111OAI: oai:DiVA.org:uu-136902DiVA: diva2:377598