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dc.date.accessioned2018-02-01T12:53:28Z
dc.date.available2018-02-01T12:53:28Z
dc.date.created2015-01-09T14:09:34Z
dc.date.issued2013
dc.identifier.citationTilmes, Simone Fasullo, John Lamarque, Jean-Francois Marsh, Daniel R. Mills, Michael G L Alterskjær, Kari Muri, Helene Kristjansson, Jon Egill Boucher, Olivier Schulz, Michael Cole, Jason N.S. Curry, Charles L. Jones, Andy Haywood, Jim M. Irvine, Peter J. Ji, Duoying Moore, John C. Karam, Diana Bou Kravitz, Ben Rasch, Philip J. Singh, Baldwinder Yoon, Yin-ho Niemeier, Ulrike Schmidt, Hauke Robock, Alan Yang, Shuting Watanabe, Shingo . The hydrological impact of geoengineering in the Geoengineering Model Intercomparison Project (GeoMIP). Journal of Geophysical Research - Atmospheres. 2013, 118(19), 11036-11058
dc.identifier.urihttp://hdl.handle.net/10852/59824
dc.description.abstract[1] The hydrological impact of enhancing Earth's albedo by solar radiation management is investigated using simulations from 12 Earth System models contributing to the Geoengineering Model Intercomparison Project (GeoMIP). We contrast an idealized experiment, G1, where the global mean radiative forcing is kept at preindustrial conditions by reducing insolation while the CO2 concentration is quadrupled to a 4×CO2 experiment. The reduction of evapotranspiration over land with instantaneously increasing CO2 concentrations in both experiments largely contributes to an initial reduction in evaporation. A warming surface associated with the transient adjustment in 4×CO2 generates an increase of global precipitation by around 6.9% with large zonal and regional changes in both directions, including a precipitation increase of 10% over Asia and a reduction of 7% for the North American summer monsoon. Reduced global evaporation persists in G1 with temperatures close to preindustrial conditions. Global precipitation is reduced by around 4.5%, and significant reductions occur over monsoonal land regions: East Asia (6%), South Africa (5%), North America (7%), and South America (6%). The general precipitation performance in models is discussed in comparison to observations. In contrast to the 4×CO2 experiment, where the frequency of months with heavy precipitation intensity is increased by over 50% in comparison to the control, a reduction of up to 20% is simulated in G1. These changes in precipitation in both total amount and frequency of extremes point to a considerable weakening of the hydrological cycle in a geoengineered world.en_US
dc.languageEN
dc.language.isoenen_US
dc.publisherAmerican Geophysical Union (AGU)
dc.titleThe hydrological impact of geoengineering in the Geoengineering Model Intercomparison Project (GeoMIP)en_US
dc.typeJournal articleen_US
dc.creator.authorTilmes, Simone
dc.creator.authorFasullo, John
dc.creator.authorLamarque, Jean-Francois
dc.creator.authorMarsh, Daniel R.
dc.creator.authorMills, Michael G L
dc.creator.authorAlterskjær, Kari
dc.creator.authorMuri, Helene
dc.creator.authorKristjansson, Jon Egill
dc.creator.authorBoucher, Olivier
dc.creator.authorSchulz, Michael
dc.creator.authorCole, Jason N.S.
dc.creator.authorCurry, Charles L.
dc.creator.authorJones, Andy
dc.creator.authorHaywood, Jim M.
dc.creator.authorIrvine, Peter J.
dc.creator.authorJi, Duoying
dc.creator.authorMoore, John C.
dc.creator.authorKaram, Diana Bou
dc.creator.authorKravitz, Ben
dc.creator.authorRasch, Philip J.
dc.creator.authorSingh, Baldwinder
dc.creator.authorYoon, Yin-ho
dc.creator.authorNiemeier, Ulrike
dc.creator.authorSchmidt, Hauke
dc.creator.authorRobock, Alan
dc.creator.authorYang, Shuting
dc.creator.authorWatanabe, Shingo
cristin.unitcode185,15,22,70
cristin.unitnameMeteorologi og oseanografi
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2
dc.identifier.cristin1194235
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal of Geophysical Research - Atmospheres&rft.volume=118&rft.spage=11036&rft.date=2013
dc.identifier.jtitleJournal of Geophysical Research - Atmospheres
dc.identifier.volume118
dc.identifier.issue19
dc.identifier.startpage11036
dc.identifier.endpage11058
dc.identifier.doihttp://dx.doi.org/10.1002/jgrd.50868
dc.identifier.urnURN:NBN:no-62503
dc.type.documentTidsskriftartikkelen_US
dc.type.peerreviewedPeer reviewed
dc.source.issn2169-897X
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/59824/1/Tilmes_Muri_2013_jgrd50868.pdf
dc.type.versionPublishedVersion


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