Trends in the CERES dataset, 2000-13: the effects of sea ice and jet shifts and comparison to climate models
The Clouds and the Earth’s Radiant Energy System (CERES) observations of global top-of-atmosphere radiative energy fluxes for the period March 2000–February 2013 are examined for robust trends and variability. The trend in Arctic ice is clearly evident in the time series of reflected shortwave radia...
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ftimperialcol:oai:spiral.imperial.ac.uk:10044/1/76100 2023-05-15T14:01:35+02:00 Trends in the CERES dataset, 2000-13: the effects of sea ice and jet shifts and comparison to climate models Hartmann, DL Ceppi, P 2014-03-01 http://hdl.handle.net/10044/1/76100 https://doi.org/10.1175/JCLI-D-13-00411.1 English eng American Meteorological Society Journal of Climate 0894-8755 http://hdl.handle.net/10044/1/76100 doi:10.1175/JCLI-D-13-00411.1 © 2014 American Meteorological Society. Permission to use figures, tables, and brief excerpts from this work in scientific and educational works is hereby granted provided that the source is acknowledged. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act or that satisfies the conditions specified in Section 108 of the U.S. Copyright Act (17 USC §108) does not require the AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a website or in a searchable database, or other uses of this material, except as exempted by the above statement, requires written permission or a license from the AMS. All AMS journals and monograph publications are registered with the Copyright Clearance Center (http://www.copyright.com). Questions about permission to use materials for which AMS holds the copyright can also be directed to permissions@ametsoc.org. Additional details are provided in the AMS Copyright Policy statement, available on the AMS website (http://www.ametsoc.org/CopyrightInformation). 2456 2444 Science & Technology Physical Sciences Meteorology & Atmospheric Sciences Radiation budgets Climate sensitivity Antarctic Oscillation Snow cover Cloud radiative effects Climate change SOUTHERN ANNULAR MODE EDDY-DRIVEN JET SURFACE TEMPERATURE POLEWARD SHIFT VARIABILITY HEMISPHERE CIRCULATION SYSTEM CONSISTENT CLOUDS 0401 Atmospheric Sciences 0405 Oceanography 0909 Geomatic Engineering Journal Article 2014 ftimperialcol https://doi.org/10.1175/JCLI-D-13-00411.1 2020-03-12T23:38:08Z The Clouds and the Earth’s Radiant Energy System (CERES) observations of global top-of-atmosphere radiative energy fluxes for the period March 2000–February 2013 are examined for robust trends and variability. The trend in Arctic ice is clearly evident in the time series of reflected shortwave radiation, which closely follows the record of ice extent. The data indicate that, for every 106 km2 decrease in September sea ice extent, annual-mean absorbed solar radiation averaged over 75°–90°N increases by 2.5 W m−2, or about 6 W m−2 between 2000 and 2012. CMIP5 models generally show a much smaller change in sea ice extent over the 1970–2012 period, but the relationship of sea ice extent to reflected shortwave is in good agreement with recent observations. Another robust trend during this period is an increase in reflected shortwave radiation in the zonal belt from 45° to 65°S. This trend is mostly related to increases in sea ice concentrations in the Southern Ocean and less directly related to cloudiness trends associated with the annular variability of the Southern Hemisphere. Models from phase 5 of the Coupled Model Intercomparison Project (CMIP5) produce a scaling of cloud reflection to zonal wind increase that is similar to trend observations in regions separated from the direct effects of sea ice. Atmospheric Model Intercomparison Project (AMIP) model responses over the Southern Ocean are not consistent with each other or with the observed shortwave trends in regions removed from the direct effect of sea ice. Article in Journal/Newspaper Antarc* Antarctic Arctic Climate change Sea ice Southern Ocean Imperial College London: Spiral Antarctic Arctic Southern Ocean Journal of Climate 27 6 2444 2456 |
institution |
Open Polar |
collection |
Imperial College London: Spiral |
op_collection_id |
ftimperialcol |
language |
English |
topic |
Science & Technology Physical Sciences Meteorology & Atmospheric Sciences Radiation budgets Climate sensitivity Antarctic Oscillation Snow cover Cloud radiative effects Climate change SOUTHERN ANNULAR MODE EDDY-DRIVEN JET SURFACE TEMPERATURE POLEWARD SHIFT VARIABILITY HEMISPHERE CIRCULATION SYSTEM CONSISTENT CLOUDS 0401 Atmospheric Sciences 0405 Oceanography 0909 Geomatic Engineering |
spellingShingle |
Science & Technology Physical Sciences Meteorology & Atmospheric Sciences Radiation budgets Climate sensitivity Antarctic Oscillation Snow cover Cloud radiative effects Climate change SOUTHERN ANNULAR MODE EDDY-DRIVEN JET SURFACE TEMPERATURE POLEWARD SHIFT VARIABILITY HEMISPHERE CIRCULATION SYSTEM CONSISTENT CLOUDS 0401 Atmospheric Sciences 0405 Oceanography 0909 Geomatic Engineering Hartmann, DL Ceppi, P Trends in the CERES dataset, 2000-13: the effects of sea ice and jet shifts and comparison to climate models |
topic_facet |
Science & Technology Physical Sciences Meteorology & Atmospheric Sciences Radiation budgets Climate sensitivity Antarctic Oscillation Snow cover Cloud radiative effects Climate change SOUTHERN ANNULAR MODE EDDY-DRIVEN JET SURFACE TEMPERATURE POLEWARD SHIFT VARIABILITY HEMISPHERE CIRCULATION SYSTEM CONSISTENT CLOUDS 0401 Atmospheric Sciences 0405 Oceanography 0909 Geomatic Engineering |
description |
The Clouds and the Earth’s Radiant Energy System (CERES) observations of global top-of-atmosphere radiative energy fluxes for the period March 2000–February 2013 are examined for robust trends and variability. The trend in Arctic ice is clearly evident in the time series of reflected shortwave radiation, which closely follows the record of ice extent. The data indicate that, for every 106 km2 decrease in September sea ice extent, annual-mean absorbed solar radiation averaged over 75°–90°N increases by 2.5 W m−2, or about 6 W m−2 between 2000 and 2012. CMIP5 models generally show a much smaller change in sea ice extent over the 1970–2012 period, but the relationship of sea ice extent to reflected shortwave is in good agreement with recent observations. Another robust trend during this period is an increase in reflected shortwave radiation in the zonal belt from 45° to 65°S. This trend is mostly related to increases in sea ice concentrations in the Southern Ocean and less directly related to cloudiness trends associated with the annular variability of the Southern Hemisphere. Models from phase 5 of the Coupled Model Intercomparison Project (CMIP5) produce a scaling of cloud reflection to zonal wind increase that is similar to trend observations in regions separated from the direct effects of sea ice. Atmospheric Model Intercomparison Project (AMIP) model responses over the Southern Ocean are not consistent with each other or with the observed shortwave trends in regions removed from the direct effect of sea ice. |
format |
Article in Journal/Newspaper |
author |
Hartmann, DL Ceppi, P |
author_facet |
Hartmann, DL Ceppi, P |
author_sort |
Hartmann, DL |
title |
Trends in the CERES dataset, 2000-13: the effects of sea ice and jet shifts and comparison to climate models |
title_short |
Trends in the CERES dataset, 2000-13: the effects of sea ice and jet shifts and comparison to climate models |
title_full |
Trends in the CERES dataset, 2000-13: the effects of sea ice and jet shifts and comparison to climate models |
title_fullStr |
Trends in the CERES dataset, 2000-13: the effects of sea ice and jet shifts and comparison to climate models |
title_full_unstemmed |
Trends in the CERES dataset, 2000-13: the effects of sea ice and jet shifts and comparison to climate models |
title_sort |
trends in the ceres dataset, 2000-13: the effects of sea ice and jet shifts and comparison to climate models |
publisher |
American Meteorological Society |
publishDate |
2014 |
url |
http://hdl.handle.net/10044/1/76100 https://doi.org/10.1175/JCLI-D-13-00411.1 |
geographic |
Antarctic Arctic Southern Ocean |
geographic_facet |
Antarctic Arctic Southern Ocean |
genre |
Antarc* Antarctic Arctic Climate change Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Arctic Climate change Sea ice Southern Ocean |
op_source |
2456 2444 |
op_relation |
Journal of Climate 0894-8755 http://hdl.handle.net/10044/1/76100 doi:10.1175/JCLI-D-13-00411.1 |
op_rights |
© 2014 American Meteorological Society. Permission to use figures, tables, and brief excerpts from this work in scientific and educational works is hereby granted provided that the source is acknowledged. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act or that satisfies the conditions specified in Section 108 of the U.S. Copyright Act (17 USC §108) does not require the AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a website or in a searchable database, or other uses of this material, except as exempted by the above statement, requires written permission or a license from the AMS. All AMS journals and monograph publications are registered with the Copyright Clearance Center (http://www.copyright.com). Questions about permission to use materials for which AMS holds the copyright can also be directed to permissions@ametsoc.org. Additional details are provided in the AMS Copyright Policy statement, available on the AMS website (http://www.ametsoc.org/CopyrightInformation). |
op_doi |
https://doi.org/10.1175/JCLI-D-13-00411.1 |
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Journal of Climate |
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27 |
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