Intercomparison of Surface Temperatures from AIRS, MERRA, and MERRA-2 with NOAA and GC-Net Weather Stations at Summit, Greenland

dc.contributor.authorHearty, Thomas J. III
dc.contributor.authorLee, Jae
dc.contributor.authorWu, Dong L.
dc.contributor.authorCullather, Richard
dc.contributor.authorBlaisdell, John M.
dc.contributor.authorSusskind, Joel
dc.contributor.authorNowicki, Sophie M. J.
dc.date.accessioned2022-03-14T14:05:27Z
dc.date.available2022-03-14T14:05:27Z
dc.date.issued2018-05-01
dc.description.abstractThe surface skin and air temperatures reported by the Atmospheric Infrared Sounder/Advanced Microwave Sounding Unit-A (AIRS/AMSU-A), the Modern-Era Retrospective Analysis for Research and Applications (MERRA), and MERRA-2 at Summit, Greenland, are compared with near-surface air temperatures measured at National Oceanic and Atmospheric Administration (NOAA) and Greenland Climate Network (GC-Net) weather stations. The AIRS/AMSU-A surface skin temperature (TS) is best correlated with the NOAA 2-m air temperature (T2M) but tends to be colder than the station measurements. The difference may be the result of the frequent near-surface temperature inversions in the region. The AIRS/AMSU-A surface air temperature (SAT) is also correlated with the NOAA T2M but has a warm bias during the cold season and a larger standard error than the surface temperature. The extrapolation of the temperature profile to calculate the AIRS SAT may not be valid for the strongest inversions. The GC-Net temperature sensors are not held at fixed heights throughout the year; however, they are typically closer to the surface than the NOAA station sensors. Comparing the lapse rates at the two stations shows that it is larger closer to the surface. The difference between the AIRS/AMSU-A SAT and TS is sensitive to near-surface inversions and tends to measure stronger inversions than both stations. The AIRS/AMSU-A may be sampling a thicker layer than either station. The MERRA-2 surface and near-surface temperatures show improvements over MERRA but little sensitivity to near-surface temperature inversions.en_US
dc.description.sponsorshipWe thank Christopher Shuman for his insights on the Greenland station observations and three anonymous reviewers for numerous suggestions to improve this paper. The MERRA, MERRA-2, and AIRS/AMSU-A data products were obtained from the Goddard Earth Sciences Data and Information Services Center (GES DISC). Authors JL, DW, RC, and SN are supported by the NASA Interdisciplinary Research in Earth Science (IDS) program (NNH12ZDA001N-IDS). Author RC is also supported by the NASA Modeling, Analysis, and Prediction (MAP) program (NNH12ZDA001N-MAP).en_US
dc.description.urihttps://journals.ametsoc.org/view/journals/apme/57/5/jamc-d-17-0216.1.xmlen_US
dc.format.extent15 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2azeg-rtxr
dc.identifier.citationHearty, Thomas J., III, Jae N. Lee, Dong L. Wu, Richard Cullather, John M. Blaisdell, Joel Susskind, and Sophie M. J. Nowicki. " Intercomparison of Surface Temperatures from AIRS, MERRA, and MERRA-2 with NOAA and GC-Net Weather Stations at Summit, Greenland", Journal of Applied Meteorology and Climatology 57, 5 (2018): 1231-1245, accessed Feb 22, 2022, https://doi.org/10.1175/JAMC-D-17-0216.1en_US
dc.identifier.urihttps://doi.org/10.1175/JAMC-D-17-0216.1
dc.identifier.urihttp://hdl.handle.net/11603/24381
dc.language.isoen_USen_US
dc.publisherAMSen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Joint Center for Earth Systems Technology
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.en_US
dc.rightsPublic Domain Mark 1.0*
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.titleIntercomparison of Surface Temperatures from AIRS, MERRA, and MERRA-2 with NOAA and GC-Net Weather Stations at Summit, Greenlanden_US
dc.typeTexten_US
dcterms.creatorhttps://orcid.org/0000-0001-9814-9855en_US

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