Evaluation of Greenland Near Surface Air Temperature Datasets
Near-surface air temperature (SAT) over Greenland has important effects on mass balance of the ice sheet, but it is unclear which SAT datasets are reliable in the region. Here extensive in-situ SAT measurements are used to assess monthly mean SAT from seven global reanalysis datasets, four gridded S...
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ftunivarizona:oai:repository.arizona.edu:10150/622907 2023-05-15T16:26:31+02:00 Evaluation of Greenland Near Surface Air Temperature Datasets Reeves Eyre, James Edward Jack Zeng, Xubin Castro, Christopher L. Niu, Guo-Yue 2016 http://hdl.handle.net/10150/622907 en_US eng The University of Arizona. http://hdl.handle.net/10150/622907 Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author. Climatology Cryosphere Glaciology Greenland Ice sheet Air temperature text Electronic Thesis 2016 ftunivarizona 2020-06-14T08:15:17Z Near-surface air temperature (SAT) over Greenland has important effects on mass balance of the ice sheet, but it is unclear which SAT datasets are reliable in the region. Here extensive in-situ SAT measurements are used to assess monthly mean SAT from seven global reanalysis datasets, four gridded SAT analyses, one satellite retrieval and two dynamically downscaled reanalyses. Strengths and weaknesses of these products are identified, and their biases are found to vary by season and glaciological regime. MERRA2 reanalysis overall performs best with mean absolute error less than 2 °C in all months. Ice sheet-average annual mean SAT from different datasets are highly correlated in recent decades, but their 1901–2000 trends differ in sign. Compared with the MERRA2 climatology combined with gridded SAT analysis anomalies, thirty-one earth system model historical runs from the CMIP5 archive reach ~5 °C for the 1901–2000 average bias and have opposite trends for a number of sub-periods. Thesis not available (per author's request) Thesis Greenland Ice Sheet The University of Arizona: UA Campus Repository Greenland |
institution |
Open Polar |
collection |
The University of Arizona: UA Campus Repository |
op_collection_id |
ftunivarizona |
language |
English |
topic |
Climatology Cryosphere Glaciology Greenland Ice sheet Air temperature |
spellingShingle |
Climatology Cryosphere Glaciology Greenland Ice sheet Air temperature Reeves Eyre, James Edward Jack Evaluation of Greenland Near Surface Air Temperature Datasets |
topic_facet |
Climatology Cryosphere Glaciology Greenland Ice sheet Air temperature |
description |
Near-surface air temperature (SAT) over Greenland has important effects on mass balance of the ice sheet, but it is unclear which SAT datasets are reliable in the region. Here extensive in-situ SAT measurements are used to assess monthly mean SAT from seven global reanalysis datasets, four gridded SAT analyses, one satellite retrieval and two dynamically downscaled reanalyses. Strengths and weaknesses of these products are identified, and their biases are found to vary by season and glaciological regime. MERRA2 reanalysis overall performs best with mean absolute error less than 2 °C in all months. Ice sheet-average annual mean SAT from different datasets are highly correlated in recent decades, but their 1901–2000 trends differ in sign. Compared with the MERRA2 climatology combined with gridded SAT analysis anomalies, thirty-one earth system model historical runs from the CMIP5 archive reach ~5 °C for the 1901–2000 average bias and have opposite trends for a number of sub-periods. Thesis not available (per author's request) |
author2 |
Zeng, Xubin Castro, Christopher L. Niu, Guo-Yue |
format |
Thesis |
author |
Reeves Eyre, James Edward Jack |
author_facet |
Reeves Eyre, James Edward Jack |
author_sort |
Reeves Eyre, James Edward Jack |
title |
Evaluation of Greenland Near Surface Air Temperature Datasets |
title_short |
Evaluation of Greenland Near Surface Air Temperature Datasets |
title_full |
Evaluation of Greenland Near Surface Air Temperature Datasets |
title_fullStr |
Evaluation of Greenland Near Surface Air Temperature Datasets |
title_full_unstemmed |
Evaluation of Greenland Near Surface Air Temperature Datasets |
title_sort |
evaluation of greenland near surface air temperature datasets |
publisher |
The University of Arizona. |
publishDate |
2016 |
url |
http://hdl.handle.net/10150/622907 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_relation |
http://hdl.handle.net/10150/622907 |
op_rights |
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author. |
_version_ |
1766015436493684736 |