Huascaran δ 18 O as an indicator of tropical climate during the Last Glacial Maximum

Abstract. The interpretation of the isotopic composition of Andes tropical mountain glaciers is reconsidered using a simple Rayleigh distillation model. It is shown that Andes snowline depression and Huascaran ice core δ 18 O are consistent with a 3 ◦ C drop in sea surface temperature during the Las...

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Main Author: R. T. Pierrehumbert
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
ice core
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.80.7268
http://geosci.uchicago.edu/~rtp1/papers/GRLhuascaran/GL714W01.pdf
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spelling ftciteseerx:oai:CiteSeerX.psu:10.1.1.80.7268 2023-05-15T16:38:57+02:00 Huascaran δ 18 O as an indicator of tropical climate during the Last Glacial Maximum R. T. Pierrehumbert The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.80.7268 http://geosci.uchicago.edu/~rtp1/papers/GRLhuascaran/GL714W01.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.80.7268 http://geosci.uchicago.edu/~rtp1/papers/GRLhuascaran/GL714W01.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://geosci.uchicago.edu/~rtp1/papers/GRLhuascaran/GL714W01.pdf text ftciteseerx 2016-01-08T19:20:14Z Abstract. The interpretation of the isotopic composition of Andes tropical mountain glaciers is reconsidered using a simple Rayleigh distillation model. It is shown that Andes snowline depression and Huascaran ice core δ 18 O are consistent with a 3 ◦ C drop in sea surface temperature during the Last Glacial Maximum, accompanied by an increase from 40 % at present to 60 % during the LGM in the annual mean proportion of atmospheric water lost to continental runoff. Broecker’s interpretation of Huascaran δ 18 O as a paleo-hygrometer is discussed. 1. Text ice core Unknown
institution Open Polar
collection Unknown
op_collection_id ftciteseerx
language English
description Abstract. The interpretation of the isotopic composition of Andes tropical mountain glaciers is reconsidered using a simple Rayleigh distillation model. It is shown that Andes snowline depression and Huascaran ice core δ 18 O are consistent with a 3 ◦ C drop in sea surface temperature during the Last Glacial Maximum, accompanied by an increase from 40 % at present to 60 % during the LGM in the annual mean proportion of atmospheric water lost to continental runoff. Broecker’s interpretation of Huascaran δ 18 O as a paleo-hygrometer is discussed. 1.
author2 The Pennsylvania State University CiteSeerX Archives
format Text
author R. T. Pierrehumbert
spellingShingle R. T. Pierrehumbert
Huascaran δ 18 O as an indicator of tropical climate during the Last Glacial Maximum
author_facet R. T. Pierrehumbert
author_sort R. T. Pierrehumbert
title Huascaran δ 18 O as an indicator of tropical climate during the Last Glacial Maximum
title_short Huascaran δ 18 O as an indicator of tropical climate during the Last Glacial Maximum
title_full Huascaran δ 18 O as an indicator of tropical climate during the Last Glacial Maximum
title_fullStr Huascaran δ 18 O as an indicator of tropical climate during the Last Glacial Maximum
title_full_unstemmed Huascaran δ 18 O as an indicator of tropical climate during the Last Glacial Maximum
title_sort huascaran δ 18 o as an indicator of tropical climate during the last glacial maximum
url http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.80.7268
http://geosci.uchicago.edu/~rtp1/papers/GRLhuascaran/GL714W01.pdf
genre ice core
genre_facet ice core
op_source http://geosci.uchicago.edu/~rtp1/papers/GRLhuascaran/GL714W01.pdf
op_relation http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.80.7268
http://geosci.uchicago.edu/~rtp1/papers/GRLhuascaran/GL714W01.pdf
op_rights Metadata may be used without restrictions as long as the oai identifier remains attached to it.
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