PDRMIP: A precipitation driver and response model intercomparison project—Protocol and preliminary results

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dc.contributor.authorMyhre, Gunnar
dc.contributor.authorForster, Piers M.
dc.contributor.authorSamset, Bjørn H.
dc.contributor.authorHodnebrog, Øivind
dc.contributor.authorSillmann, Jana
dc.contributor.authorAalbergsjø, S. G.
dc.contributor.authorAndrews, Timothy
dc.contributor.authorBoucher, Olivier
dc.contributor.authorFaluvegi, Gregory
dc.contributor.authorFläschner, D.
dc.contributor.authorIversen, T.
dc.contributor.authorKasoar, Matthew M.
dc.contributor.authorKharin, Viatcheslav V.
dc.contributor.authorKirkevåg, Alf
dc.contributor.authorLamarque, Jean Francois
dc.contributor.authorOlivié, Dirk J. L.
dc.contributor.authorRichardson, Thomas B.
dc.contributor.authorShindell, Drew
dc.contributor.authorShine, K. P.
dc.contributor.authorStjern, Camilla W.
dc.contributor.authorTakemura, Toshihiko
dc.contributor.authorVoulgarakis, Apostolos
dc.contributor.authorZwiers, Francis W.
dc.date.accessioned2025-04-10T20:27:30Z
dc.date.available2025-04-10T20:27:30Z
dc.date.issued2017
dc.description.abstractAs the global temperature increases with changing climate, precipitation rates and patterns are affected through a wide range of physical mechanisms. The globally averaged intensity of extreme precipitation also changes more rapidly than the globally averaged precipitation rate. While some aspects of the regional variation in precipitation predicted by climate models appear robust, there is still a large degree of intermodel differences unaccounted for. Individual drivers of climate change initially alter the energy budget of the atmosphere, leading to distinct rapid adjustments involving changes in precipitation. Differences in how these rapid adjustment processes manifest themselves within models are likely to explain a large fraction of the present model spread and better quantifications are needed to improve precipitation predictions. Here, the authors introduce the Precipitation Driver and Response Model Intercomparison Project (PDRMIP), where a set of idealized experiments designed to understand the role of different climate forcing mechanisms were performed by a large set of climate models. PDRMIP focuses on understanding how precipitation changes relating to rapid adjustments and slower responses to climate forcings are represented across models. Initial results show that rapid adjustments account for large regional differences in hydrological sensitivity across multiple drivers. The PDRMIP results are expected to dramatically improve understanding of the causes of the present diversity in future climate projections.
dc.description.reviewstatusReviewed
dc.description.scholarlevelFaculty
dc.description.sponsorshipPDRMIP is partly funded through the Norwegian Research Council project NAPEX (Project 229778). TT was supported by the supercomputer system of the National Institute for Environmental Studies, Japan; the Environment Research and Technology Development Fund (S-12-3) of the Ministry of the Environment, Japan; and JSPS KAKENHI Grants 15H01728 and 15K12190. DO, AK, and TI were supported by the Norwegian Research Council through the projects EVA (Grant 229771), EarthClim (207711/E10), NOTUR (nn2345k), and NorStore (ns2345k). MK and AV are supported by the Natural Environment Research Council under Grant NE/K500872/1.
dc.identifier.citationMyhre, G., Forster, P. M., Samset, B. H., Hodnebrog, Ø., Sillmann, J., Aalbergsjø, S. G., Andrews, T., Boucher, O., Faluvegi, G., Fläschner, D., Iversen, T., Kasoar, M., Kharin, V. V., Kirkevåg, A., Lamarque, J.-F., Olivié, D., Richardson, T. B., Shindell, D., Shine, K. P., … Zwiers, F. W. (2017). PDRMIP: A precipitation driver and response model intercomparison project—Protocol and preliminary results. Bulletin of the American Meteorological Society, 98(6), 1185–1198. https://doi.org/10.1175/BAMS-D-16-0019.1
dc.identifier.urihttps://doi.org/10.1175/BAMS-D-16-0019.1
dc.identifier.urihttps://hdl.handle.net/1828/21834
dc.language.isoen
dc.publisherBulletin of the American Meteorological Society
dc.subjectUN SDG 13: Climate Action
dc.subject#journal article
dc.subjectPacific Climate Impacts Consortium (PCIC)
dc.subjectCanadian Centre for Climate Modelling and Analysis (CCCma)
dc.titlePDRMIP: A precipitation driver and response model intercomparison project—Protocol and preliminary results
dc.typeArticle

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