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dc.date.accessioned2017-11-15T09:42:14Z
dc.date.available2017-11-15T09:42:14Z
dc.date.issued2017
dc.identifier.urihttp://hdl.handle.net/10852/59112
dc.description.abstractEurope has warmed faster than the rest of the globe during the last decades, especially when considering trends for each season separately. In addition to warming caused by greenhouse gas emissions, the atmospheric circulation is the key driver of seasonal warming in Europe. For example, westerly airflow tends to bring warmer weather in winter. Of secondary importance are climate feedbacks that may enhance warming locally. For example, snow reflects more sunlight than grass or bare ground. A retreating snow cover reveals a darker ground that allows more sunlight to be absorbed, and leaves more energy available for further melting and warming (the snow albedo feedback). A different feedback, the soil moisture–temperature feedback, mainly acts during warm spells when the soil moisture may decrease to such low levels that evaporation is reduced. Since evaporation requires energy, less evaporation means less cooling, which means that the initial warming is enhanced. The aim of this thesis is to detect recent trends for Europe on the monthly scale, and improve our process understanding of key drivers of change.en_US
dc.language.isoenen_US
dc.relation.haspartPaper I: Nilsen, I.B., Fleig, A.K., Tallaksen, L.M., and Hisdal, H. (2014): Recent trends in monthly temperature and precipitation patterns in Europe. Hydrology in a Changing World: Environmental and Human Dimensions. Proceedings of FRIEND-Water 2014, Montpellier, France, October 2014 IAHS Publ. 363. The paper is not available in DUO due to publisher restrictions. The published version is available at: https://iahs.info/Publications-News.do?dmsSearch_pubno=363
dc.relation.haspartPaper II: Nilsen, I.B., Stagge, J.H., and Tallaksen, L.M. (2017): A probabilistic approach for attributing temperature changes to synoptic type frequency. International Journal of Climatology 37(6): 2990–3002. The paper is not available in DUO due to publisher restrictions. The published version is available at: http://dx.doi.org/10.1002/joc.4894
dc.relation.haspartPaper III: Rizzi, J. Nilsen, I.B., Stagge, J.H., Gisnås, K., and Tallaksen, L.M. (2017): Five decades of warming: impacts on snow cover in Norway. Hydrology Research (in production). The paper is not available in DUO due to publisher restrictions. The published version is available at: https://doi.org/10.2166/nh.2017.051
dc.relation.haspartPaper IV: Nilsen, I.B., Erlandsen, H.B., Stordal, F. Xu, C-Y., and Tallaksen, L.M. (2017): Diagnosing land–atmosphere coupling in a seasonally snow-covered region (South Norway). Manuscript prepared for submission to Journal of Hydrometeorology. The paper is not available in DUO awaiting publishing.
dc.relation.urihttp://dx.doi.org/10.1002/joc.4894
dc.relation.urihttps://doi.org/10.2166/nh.2017.051
dc.titleDetecting and attributing recent warming in Europeen_US
dc.typeDoctoral thesisen_US
dc.creator.authorNilsen, Irene Brox
dc.identifier.urnURN:NBN:no-61454
dc.type.documentDoktoravhandlingen_US
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/59112/1/PhD-Nilsen--2017.pdf


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