A Comparison of Atmospheric Reanalysis Products for the Arctic Ocean and Implications for Uncertainties in Air–Sea Fluxes
The uncertainties related to atmospheric fields in the Arctic Ocean from commonly used and recently available reanalysis products are investigated. Fields from the 1) ECMWF Interim Re-Analysis (ERA-Interim), 2) Common Ocean–Ice Reference Experiment version 2 (CORE2), 3) Japanese 25-yr Reanalysis Pro...
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ftmit:oai:dspace.mit.edu:1721.1/93872 2023-06-11T04:07:41+02:00 A Comparison of Atmospheric Reanalysis Products for the Arctic Ocean and Implications for Uncertainties in Air–Sea Fluxes Chaudhuri, Ayan H. Ponte, Rui M. Nguyen, An T. Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Nguyen, An T. Ponte, Rui M. 2014-03 application/pdf http://hdl.handle.net/1721.1/93872 en_US eng American Meteorological Society http://dx.doi.org/10.1175/JCLI-D-13-00424.1 Journal of Climate 0894-8755 1520-0442 http://hdl.handle.net/1721.1/93872 Chaudhuri, Ayan H., Rui M. Ponte, and An T. Nguyen. “A Comparison of Atmospheric Reanalysis Products for the Arctic Ocean and Implications for Uncertainties in Air–Sea Fluxes.” J. Climate 27, no. 14 (July 2014): 5411–5421. © 2014 American Meteorological Society orcid:0000-0002-4219-8460 Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. American Meteorological Society Article http://purl.org/eprint/type/JournalArticle 2014 ftmit https://doi.org/10.1175/JCLI-D-13-00424.1 2023-05-29T08:48:43Z The uncertainties related to atmospheric fields in the Arctic Ocean from commonly used and recently available reanalysis products are investigated. Fields from the 1) ECMWF Interim Re-Analysis (ERA-Interim), 2) Common Ocean–Ice Reference Experiment version 2 (CORE2), 3) Japanese 25-yr Reanalysis Project (JRA-25), 4) NCEP–NCAR reanalysis, 5) NCEP Climate Forecast System Reanalysis (CFSR), and 6) Modern-Era Retrospective Analysis for Research and Applications (MERRA) are evaluated against satellite-derived and in situ observations for zonal and meridional winds, precipitation, specific humidity, surface air temperature, and downwelling longwave and shortwave radiation fluxes. Comparison to reference observations shows that for variables such as air temperature and humidity, all reanalysis products have similar solutions. However, other variables such as winds, precipitation, and radiation show large spreads. The magnitude of uncertainties in all fields is large when compared to the signal. Biases in Arctic cloud parameterizations and predicted temperature and humidity profiles in reanalyses as discussed in other studies are likely common sources of error that affect surface downwelling radiation, air temperature, humidity, and precipitation. National Science Foundation (U.S.) (Grant ARC-1022733) Article in Journal/Newspaper Arctic Arctic Arctic Ocean DSpace@MIT (Massachusetts Institute of Technology) Arctic Arctic Ocean Merra ENVELOPE(12.615,12.615,65.816,65.816) Journal of Climate 27 14 5411 5421 |
institution |
Open Polar |
collection |
DSpace@MIT (Massachusetts Institute of Technology) |
op_collection_id |
ftmit |
language |
English |
description |
The uncertainties related to atmospheric fields in the Arctic Ocean from commonly used and recently available reanalysis products are investigated. Fields from the 1) ECMWF Interim Re-Analysis (ERA-Interim), 2) Common Ocean–Ice Reference Experiment version 2 (CORE2), 3) Japanese 25-yr Reanalysis Project (JRA-25), 4) NCEP–NCAR reanalysis, 5) NCEP Climate Forecast System Reanalysis (CFSR), and 6) Modern-Era Retrospective Analysis for Research and Applications (MERRA) are evaluated against satellite-derived and in situ observations for zonal and meridional winds, precipitation, specific humidity, surface air temperature, and downwelling longwave and shortwave radiation fluxes. Comparison to reference observations shows that for variables such as air temperature and humidity, all reanalysis products have similar solutions. However, other variables such as winds, precipitation, and radiation show large spreads. The magnitude of uncertainties in all fields is large when compared to the signal. Biases in Arctic cloud parameterizations and predicted temperature and humidity profiles in reanalyses as discussed in other studies are likely common sources of error that affect surface downwelling radiation, air temperature, humidity, and precipitation. National Science Foundation (U.S.) (Grant ARC-1022733) |
author2 |
Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Nguyen, An T. Ponte, Rui M. |
format |
Article in Journal/Newspaper |
author |
Chaudhuri, Ayan H. Ponte, Rui M. Nguyen, An T. |
spellingShingle |
Chaudhuri, Ayan H. Ponte, Rui M. Nguyen, An T. A Comparison of Atmospheric Reanalysis Products for the Arctic Ocean and Implications for Uncertainties in Air–Sea Fluxes |
author_facet |
Chaudhuri, Ayan H. Ponte, Rui M. Nguyen, An T. |
author_sort |
Chaudhuri, Ayan H. |
title |
A Comparison of Atmospheric Reanalysis Products for the Arctic Ocean and Implications for Uncertainties in Air–Sea Fluxes |
title_short |
A Comparison of Atmospheric Reanalysis Products for the Arctic Ocean and Implications for Uncertainties in Air–Sea Fluxes |
title_full |
A Comparison of Atmospheric Reanalysis Products for the Arctic Ocean and Implications for Uncertainties in Air–Sea Fluxes |
title_fullStr |
A Comparison of Atmospheric Reanalysis Products for the Arctic Ocean and Implications for Uncertainties in Air–Sea Fluxes |
title_full_unstemmed |
A Comparison of Atmospheric Reanalysis Products for the Arctic Ocean and Implications for Uncertainties in Air–Sea Fluxes |
title_sort |
comparison of atmospheric reanalysis products for the arctic ocean and implications for uncertainties in air–sea fluxes |
publisher |
American Meteorological Society |
publishDate |
2014 |
url |
http://hdl.handle.net/1721.1/93872 |
long_lat |
ENVELOPE(12.615,12.615,65.816,65.816) |
geographic |
Arctic Arctic Ocean Merra |
geographic_facet |
Arctic Arctic Ocean Merra |
genre |
Arctic Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Arctic Ocean |
op_source |
American Meteorological Society |
op_relation |
http://dx.doi.org/10.1175/JCLI-D-13-00424.1 Journal of Climate 0894-8755 1520-0442 http://hdl.handle.net/1721.1/93872 Chaudhuri, Ayan H., Rui M. Ponte, and An T. Nguyen. “A Comparison of Atmospheric Reanalysis Products for the Arctic Ocean and Implications for Uncertainties in Air–Sea Fluxes.” J. Climate 27, no. 14 (July 2014): 5411–5421. © 2014 American Meteorological Society orcid:0000-0002-4219-8460 |
op_rights |
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. |
op_doi |
https://doi.org/10.1175/JCLI-D-13-00424.1 |
container_title |
Journal of Climate |
container_volume |
27 |
container_issue |
14 |
container_start_page |
5411 |
op_container_end_page |
5421 |
_version_ |
1768380846990950400 |