Uncertainties of monthly ocean bottom pressure from Gravity Recovery and Climate Experiment (GRACE): a case study at the Drake Passage
Abstract Several studies reported some aliasing errors of Ocean bottom pressure (OBP) data from Gravity Recovery and Climate Experiment (GRACE), although this data have been widely used to estimate the oceanic transports. In this study, the performances of monthly OBP data from six GRACE products wi...
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ftdoajarticles:oai:doaj.org/article:6ed2503687204307b7050d09f2354a5a 2023-08-27T04:09:10+02:00 Uncertainties of monthly ocean bottom pressure from Gravity Recovery and Climate Experiment (GRACE): a case study at the Drake Passage Chengcheng Yang Xuhua Cheng Jianhuang Qin 2023-07-01T00:00:00Z https://doi.org/10.1186/s40562-023-00288-5 https://doaj.org/article/6ed2503687204307b7050d09f2354a5a EN eng SpringerOpen https://doi.org/10.1186/s40562-023-00288-5 https://doaj.org/toc/2196-4092 doi:10.1186/s40562-023-00288-5 2196-4092 https://doaj.org/article/6ed2503687204307b7050d09f2354a5a Geoscience Letters, Vol 10, Iss 1, Pp 1-10 (2023) Ocean bottom pressure GRACE Drake Passage Eddy kinetic energy Science Q Geology QE1-996.5 article 2023 ftdoajarticles https://doi.org/10.1186/s40562-023-00288-5 2023-08-06T00:49:18Z Abstract Several studies reported some aliasing errors of Ocean bottom pressure (OBP) data from Gravity Recovery and Climate Experiment (GRACE), although this data have been widely used to estimate the oceanic transports. In this study, the performances of monthly OBP data from six GRACE products with two different solutions are evaluated by comparisons with the observed records at the Drake Passage. Result shows that spherical harmonic products have a better ability to capture monthly OBP variability than mascon products at the Drake Passage. In all GRACE products, higher skills occur to the south of Polar Front than those in the northern Drake Passage, and the correlations with observations reach minimum in the Local Dynamics Array (LDA) region. Such spatial differences are mainly attributed to local mesoscale processes, accompanied with high-frequency bottom eddy kinetic energy (EKE). It indicates that the monthly OBP variations from GRACE products are not reliable in the eddy-rich regions. Article in Journal/Newspaper Drake Passage Directory of Open Access Journals: DOAJ Articles Drake Passage Geoscience Letters 10 1 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Ocean bottom pressure GRACE Drake Passage Eddy kinetic energy Science Q Geology QE1-996.5 |
spellingShingle |
Ocean bottom pressure GRACE Drake Passage Eddy kinetic energy Science Q Geology QE1-996.5 Chengcheng Yang Xuhua Cheng Jianhuang Qin Uncertainties of monthly ocean bottom pressure from Gravity Recovery and Climate Experiment (GRACE): a case study at the Drake Passage |
topic_facet |
Ocean bottom pressure GRACE Drake Passage Eddy kinetic energy Science Q Geology QE1-996.5 |
description |
Abstract Several studies reported some aliasing errors of Ocean bottom pressure (OBP) data from Gravity Recovery and Climate Experiment (GRACE), although this data have been widely used to estimate the oceanic transports. In this study, the performances of monthly OBP data from six GRACE products with two different solutions are evaluated by comparisons with the observed records at the Drake Passage. Result shows that spherical harmonic products have a better ability to capture monthly OBP variability than mascon products at the Drake Passage. In all GRACE products, higher skills occur to the south of Polar Front than those in the northern Drake Passage, and the correlations with observations reach minimum in the Local Dynamics Array (LDA) region. Such spatial differences are mainly attributed to local mesoscale processes, accompanied with high-frequency bottom eddy kinetic energy (EKE). It indicates that the monthly OBP variations from GRACE products are not reliable in the eddy-rich regions. |
format |
Article in Journal/Newspaper |
author |
Chengcheng Yang Xuhua Cheng Jianhuang Qin |
author_facet |
Chengcheng Yang Xuhua Cheng Jianhuang Qin |
author_sort |
Chengcheng Yang |
title |
Uncertainties of monthly ocean bottom pressure from Gravity Recovery and Climate Experiment (GRACE): a case study at the Drake Passage |
title_short |
Uncertainties of monthly ocean bottom pressure from Gravity Recovery and Climate Experiment (GRACE): a case study at the Drake Passage |
title_full |
Uncertainties of monthly ocean bottom pressure from Gravity Recovery and Climate Experiment (GRACE): a case study at the Drake Passage |
title_fullStr |
Uncertainties of monthly ocean bottom pressure from Gravity Recovery and Climate Experiment (GRACE): a case study at the Drake Passage |
title_full_unstemmed |
Uncertainties of monthly ocean bottom pressure from Gravity Recovery and Climate Experiment (GRACE): a case study at the Drake Passage |
title_sort |
uncertainties of monthly ocean bottom pressure from gravity recovery and climate experiment (grace): a case study at the drake passage |
publisher |
SpringerOpen |
publishDate |
2023 |
url |
https://doi.org/10.1186/s40562-023-00288-5 https://doaj.org/article/6ed2503687204307b7050d09f2354a5a |
geographic |
Drake Passage |
geographic_facet |
Drake Passage |
genre |
Drake Passage |
genre_facet |
Drake Passage |
op_source |
Geoscience Letters, Vol 10, Iss 1, Pp 1-10 (2023) |
op_relation |
https://doi.org/10.1186/s40562-023-00288-5 https://doaj.org/toc/2196-4092 doi:10.1186/s40562-023-00288-5 2196-4092 https://doaj.org/article/6ed2503687204307b7050d09f2354a5a |
op_doi |
https://doi.org/10.1186/s40562-023-00288-5 |
container_title |
Geoscience Letters |
container_volume |
10 |
container_issue |
1 |
_version_ |
1775350327321559040 |