Development of the Regional Arctic System Model (RASM): Near-Surface Atmospheric Climate Sensitivity

dc.contributor.author Cassano, John
dc.contributor.author DuVivier, Alice
dc.contributor.author Gutowski, William
dc.contributor.author Roberts, Andrew
dc.contributor.author Hughes, Mimi
dc.contributor.author Seefeldt, Mark
dc.contributor.author Brunke, Michael
dc.contributor.author Craig, Anthony
dc.contributor.author Fisel, Brandon
dc.contributor.author Gutowski, William
dc.contributor.author Hamman, Joseph
dc.contributor.author Higgins, Matthew
dc.contributor.author Maslowski, Wieslaw
dc.contributor.author Nijssen, Bart
dc.contributor.author Osinski, Robert
dc.contributor.author Zeng, Xubin
dc.contributor.department Geological and Atmospheric Sciences
dc.date 2019-11-19T22:08:56.000
dc.date.accessioned 2020-06-30T04:04:30Z
dc.date.available 2020-06-30T04:04:30Z
dc.date.issued 2017-08-01
dc.description.abstract <p>The near-surface climate, including the atmosphere, ocean, sea ice, and land state and fluxes, in the initial version of the Regional Arctic System Model (RASM) are presented. The sensitivity of the RASM near-surface climate to changes in atmosphere, ocean, and sea ice parameters and physics is evaluated in four simulations. The near-surface atmospheric circulation is well simulated in all four RASM simulations but biases in surface temperature are caused by biases in downward surface radiative fluxes. Errors in radiative fluxes are due to biases in simulated clouds with different versions of RASM simulating either too much or too little cloud radiative impact over open ocean regions and all versions simulating too little cloud radiative impact over land areas. Cold surface temperature biases in the central Arctic in winter are likely due to too few or too radiatively thin clouds. The precipitation simulated by RASM is sensitive to changes in evaporation that were linked to sea surface temperature biases. Future work will explore changes in model microphysics aimed at minimizing the cloud and radiation biases identified in this work.</p>
dc.description.comments <p>This article is published as Cassano, John J., Alice DuVivier, Andrew Roberts, Mimi Hughes, Mark Seefeldt, Michael Brunke, Anthony Craig et al. "Development of the Regional Arctic System Model (RASM): near-surface atmospheric climate sensitivity." <em>Journal of Climate</em> 30, no. 15 (2017): 5729-5753. doi: <a href="https://doi.org/10.1175/JCLI-D-15-0775.1">10.1175/JCLI-D-15-0775.1</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/ge_at_pubs/279/
dc.identifier.articleid 1292
dc.identifier.contextkey 15827437
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ge_at_pubs/279
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/38224
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/ge_at_pubs/279/2017_Gutowski_DevelopmentRegional.pdf|||Fri Jan 14 23:08:17 UTC 2022
dc.source.uri 10.1175/JCLI-D-15-0775.1
dc.subject.disciplines Atmospheric Sciences
dc.subject.disciplines Climate
dc.subject.disciplines Oceanography
dc.subject.disciplines Statistical Models
dc.title Development of the Regional Arctic System Model (RASM): Near-Surface Atmospheric Climate Sensitivity
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication a9f30fc3-02dd-4a1a-82e7-516c277638f5
relation.isOrgUnitOfPublication 29272786-4c4a-4d63-98d6-e7b6d6730c45
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