Global mean sea level - Indicator of climate change
A critical discussion is presented on the use by Etkins and Epstein (1982) of combined surface air temperature and sea level time series to draw conclusions concerning the discharge of the polar ice sheets. It is objected by Robock that they used Northern Hemisphere land surface air temperature reco...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19830041107 2023-05-15T16:41:06+02:00 Global mean sea level - Indicator of climate change Robock, A. Hansen, J. Gornitz, V. Lebedeff, S. Moore, E. Etkins, R. Epstein, E. Unclassified, Unlimited, Publicly available Feb 25, 1983 http://ntrs.nasa.gov/search.jsp?R=19830041107 unknown http://ntrs.nasa.gov/search.jsp?R=19830041107 Accession ID: 83A22325 Copyright Other Sources 48 Science; 219; Feb. 25 1983 ftnasantrs 2012-02-15T15:26:39Z A critical discussion is presented on the use by Etkins and Epstein (1982) of combined surface air temperature and sea level time series to draw conclusions concerning the discharge of the polar ice sheets. It is objected by Robock that they used Northern Hemisphere land surface air temperature records which are unrepresentative of global sea surface temperature, and he suggests that externally imposed volcanic dust and CO2 forcings can adequately account for observed temperature changes over the last century, with global sea level changing in passive response to sea change as a result of thermal expansion. Hansen et al. adduce evidence for global cooling due to ice discharge that has not exceeded a few hundredths of a degree centigrade in the last century, precluding any importance of this phenomenon in the interpretation of global mean temperature trends for this period. Etkins and Epstein reply that since their 1982 report additional evidence has emerged for the hypothesis that the polar ice caps are diminishing. It is reasserted that each of the indices discussed, including global mean sea surface temperature and sea level, polar ice sheet mass balance, water mass characteristics, and the spin rate and axis of rotation displacement of the earth, are physically linked and can be systematically monitored, as is currently being planned under the auspices of the National Climate Program. Other/Unknown Material Ice Sheet NASA Technical Reports Server (NTRS) |
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48 Robock, A. Hansen, J. Gornitz, V. Lebedeff, S. Moore, E. Etkins, R. Epstein, E. Global mean sea level - Indicator of climate change |
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48 |
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A critical discussion is presented on the use by Etkins and Epstein (1982) of combined surface air temperature and sea level time series to draw conclusions concerning the discharge of the polar ice sheets. It is objected by Robock that they used Northern Hemisphere land surface air temperature records which are unrepresentative of global sea surface temperature, and he suggests that externally imposed volcanic dust and CO2 forcings can adequately account for observed temperature changes over the last century, with global sea level changing in passive response to sea change as a result of thermal expansion. Hansen et al. adduce evidence for global cooling due to ice discharge that has not exceeded a few hundredths of a degree centigrade in the last century, precluding any importance of this phenomenon in the interpretation of global mean temperature trends for this period. Etkins and Epstein reply that since their 1982 report additional evidence has emerged for the hypothesis that the polar ice caps are diminishing. It is reasserted that each of the indices discussed, including global mean sea surface temperature and sea level, polar ice sheet mass balance, water mass characteristics, and the spin rate and axis of rotation displacement of the earth, are physically linked and can be systematically monitored, as is currently being planned under the auspices of the National Climate Program. |
format |
Other/Unknown Material |
author |
Robock, A. Hansen, J. Gornitz, V. Lebedeff, S. Moore, E. Etkins, R. Epstein, E. |
author_facet |
Robock, A. Hansen, J. Gornitz, V. Lebedeff, S. Moore, E. Etkins, R. Epstein, E. |
author_sort |
Robock, A. |
title |
Global mean sea level - Indicator of climate change |
title_short |
Global mean sea level - Indicator of climate change |
title_full |
Global mean sea level - Indicator of climate change |
title_fullStr |
Global mean sea level - Indicator of climate change |
title_full_unstemmed |
Global mean sea level - Indicator of climate change |
title_sort |
global mean sea level - indicator of climate change |
publishDate |
1983 |
url |
http://ntrs.nasa.gov/search.jsp?R=19830041107 |
op_coverage |
Unclassified, Unlimited, Publicly available |
genre |
Ice Sheet |
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Ice Sheet |
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Other Sources |
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http://ntrs.nasa.gov/search.jsp?R=19830041107 Accession ID: 83A22325 |
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Copyright |
_version_ |
1766031547160330240 |