Global sea level change signatures observed by GRACE satellite gravimetry

Ice mass loss on land results in sea level rise, but its rate varies regionally due to gravitational self-attraction effects. Observing regional sea level rates by ocean mass change using the Gravity Recovery and Climate Experiment (GRACE) gravity solutions is difficult due to GRACE’s spatial resolu...

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Published in:Scientific Reports
Main Authors: Jeon, Taehwan, Seo, Ki-Weon, Youm, Kookhyoun, Chen, Jianli, Wilson, Clark R.
Format: Text
Language:English
Published: Nature Publishing Group UK 2018
Subjects:
Article
Arctic
Indian
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6131218/
http://www.ncbi.nlm.nih.gov/pubmed/30202083
https://doi.org/10.1038/s41598-018-31972-8
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spelling ftpubmed:oai:pubmedcentral.nih.gov:6131218 2023-05-15T15:03:25+02:00 Global sea level change signatures observed by GRACE satellite gravimetry Jeon, Taehwan Seo, Ki-Weon Youm, Kookhyoun Chen, Jianli Wilson, Clark R. 2018-09-10 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6131218/ http://www.ncbi.nlm.nih.gov/pubmed/30202083 https://doi.org/10.1038/s41598-018-31972-8 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6131218/ http://www.ncbi.nlm.nih.gov/pubmed/30202083 http://dx.doi.org/10.1038/s41598-018-31972-8 © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. CC-BY Article Text 2018 ftpubmed https://doi.org/10.1038/s41598-018-31972-8 2018-09-16T00:24:35Z Ice mass loss on land results in sea level rise, but its rate varies regionally due to gravitational self-attraction effects. Observing regional sea level rates by ocean mass change using the Gravity Recovery and Climate Experiment (GRACE) gravity solutions is difficult due to GRACE’s spatial resolution (~a few hundred km) and other limitations. Here we estimate regional sea level mass change using GRACE data (without contributions from temperature and salinity variations) by addressing these limitations: restoring spatially spread and attenuated signals in post-processed GRACE data; constraining ocean mass distribution to conform to the changing geoid; and judging specific corrections applied to GRACE data including a new geocenter estimate. The estimated global sea level mass trend for 2003–2014 is 2.14 ± 0.12 mm/yr. Regional trends differ considerably among ocean basins, ranging from −0.5 mm/yr in the Arctic to about 2.4 mm/yr in the Indian and South Atlantic Oceans. Text Arctic PubMed Central (PMC) Arctic Indian Scientific Reports 8 1
institution Open Polar
collection PubMed Central (PMC)
op_collection_id ftpubmed
language English
topic Article
spellingShingle Article
Jeon, Taehwan
Seo, Ki-Weon
Youm, Kookhyoun
Chen, Jianli
Wilson, Clark R.
Global sea level change signatures observed by GRACE satellite gravimetry
topic_facet Article
description Ice mass loss on land results in sea level rise, but its rate varies regionally due to gravitational self-attraction effects. Observing regional sea level rates by ocean mass change using the Gravity Recovery and Climate Experiment (GRACE) gravity solutions is difficult due to GRACE’s spatial resolution (~a few hundred km) and other limitations. Here we estimate regional sea level mass change using GRACE data (without contributions from temperature and salinity variations) by addressing these limitations: restoring spatially spread and attenuated signals in post-processed GRACE data; constraining ocean mass distribution to conform to the changing geoid; and judging specific corrections applied to GRACE data including a new geocenter estimate. The estimated global sea level mass trend for 2003–2014 is 2.14 ± 0.12 mm/yr. Regional trends differ considerably among ocean basins, ranging from −0.5 mm/yr in the Arctic to about 2.4 mm/yr in the Indian and South Atlantic Oceans.
format Text
author Jeon, Taehwan
Seo, Ki-Weon
Youm, Kookhyoun
Chen, Jianli
Wilson, Clark R.
author_facet Jeon, Taehwan
Seo, Ki-Weon
Youm, Kookhyoun
Chen, Jianli
Wilson, Clark R.
author_sort Jeon, Taehwan
title Global sea level change signatures observed by GRACE satellite gravimetry
title_short Global sea level change signatures observed by GRACE satellite gravimetry
title_full Global sea level change signatures observed by GRACE satellite gravimetry
title_fullStr Global sea level change signatures observed by GRACE satellite gravimetry
title_full_unstemmed Global sea level change signatures observed by GRACE satellite gravimetry
title_sort global sea level change signatures observed by grace satellite gravimetry
publisher Nature Publishing Group UK
publishDate 2018
url http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6131218/
http://www.ncbi.nlm.nih.gov/pubmed/30202083
https://doi.org/10.1038/s41598-018-31972-8
geographic Arctic
Indian
geographic_facet Arctic
Indian
genre Arctic
genre_facet Arctic
op_relation http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6131218/
http://www.ncbi.nlm.nih.gov/pubmed/30202083
http://dx.doi.org/10.1038/s41598-018-31972-8
op_rights © The Author(s) 2018
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
op_rightsnorm CC-BY
op_doi https://doi.org/10.1038/s41598-018-31972-8
container_title Scientific Reports
container_volume 8
container_issue 1
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