A global Ocean Bottom Pressure data base as ground-truth reference for GRACE gravity field products
The GRACE satellite mission provides monthly estimates of the gravity field of the Earth. Differences between the monthly solutions are induced by mass redistribution on the Earth. Over the continents, the hydrological cycle represents the largest signals, which are readily observed by GRACE. Over t...
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ftawi:oai:epic.awi.de:17704 2024-09-15T17:41:11+00:00 A global Ocean Bottom Pressure data base as ground-truth reference for GRACE gravity field products Macrander, Annecke Böning, Carmen Boebel, Olaf Schröter, Jens 2006 application/pdf https://epic.awi.de/id/eprint/17704/ https://epic.awi.de/id/eprint/17704/1/Mac2006l.pdf https://hdl.handle.net/10013/epic.28127 https://hdl.handle.net/10013/epic.28127.d001 unknown https://epic.awi.de/id/eprint/17704/1/Mac2006l.pdf https://hdl.handle.net/10013/epic.28127.d001 Macrander, A. , Böning, C. , Boebel, O. orcid:0000-0002-2259-0035 and Schröter, J. orcid:0000-0002-9240-5798 (2006) A global Ocean Bottom Pressure data base as ground-truth reference for GRACE gravity field products , Geodetic Week 2006, 10 - 12 October 2006 . Munich, Germany. . hdl:10013/epic.28127 EPIC3Geodetic Week 2006, 10 - 12 October 2006 . Munich, Germany. Conference notRev 2006 ftawi 2024-06-24T04:00:13Z The GRACE satellite mission provides monthly estimates of the gravity field of the Earth. Differences between the monthly solutions are induced by mass redistribution on the Earth. Over the continents, the hydrological cycle represents the largest signals, which are readily observed by GRACE. Over the oceans, however, gravity field changes are about an order of magnitude smaller, close to the accuracy limits of the present GRACE solutions. Nevertheless, GRACE measurements may prove as an important tool to obtain integral estimates of water mass redistribution, sea level changes and geostrophic current variability. In order to validate and improve the gravity field products, GRACE is to be compared against ocean models and in-situ observations of Ocean Bottom Pressure (OBP). Time series of OBP sensors deployed by Alfred-Wegener-Institut in the Antarctic Circumpolar Current, as well as measurements from other locations of the global ocean are included in a OBP database that is currently under development at AWI, in close cooperation with Proudman Oceanographic Laboratory (POL, Liverpool). The mutual comparison of in-situ and ocean model data with different GRACE products provided by CSR, GFZ, GRGS, ITG and JPL will help to optimize data processing methods and corrections applied to GRACE, and to identify the performance of GRACE to detect oceanic mass flux variability in different regions of the global ocean. Conference Object Antarc* Antarctic Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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The GRACE satellite mission provides monthly estimates of the gravity field of the Earth. Differences between the monthly solutions are induced by mass redistribution on the Earth. Over the continents, the hydrological cycle represents the largest signals, which are readily observed by GRACE. Over the oceans, however, gravity field changes are about an order of magnitude smaller, close to the accuracy limits of the present GRACE solutions. Nevertheless, GRACE measurements may prove as an important tool to obtain integral estimates of water mass redistribution, sea level changes and geostrophic current variability. In order to validate and improve the gravity field products, GRACE is to be compared against ocean models and in-situ observations of Ocean Bottom Pressure (OBP). Time series of OBP sensors deployed by Alfred-Wegener-Institut in the Antarctic Circumpolar Current, as well as measurements from other locations of the global ocean are included in a OBP database that is currently under development at AWI, in close cooperation with Proudman Oceanographic Laboratory (POL, Liverpool). The mutual comparison of in-situ and ocean model data with different GRACE products provided by CSR, GFZ, GRGS, ITG and JPL will help to optimize data processing methods and corrections applied to GRACE, and to identify the performance of GRACE to detect oceanic mass flux variability in different regions of the global ocean. |
format |
Conference Object |
author |
Macrander, Annecke Böning, Carmen Boebel, Olaf Schröter, Jens |
spellingShingle |
Macrander, Annecke Böning, Carmen Boebel, Olaf Schröter, Jens A global Ocean Bottom Pressure data base as ground-truth reference for GRACE gravity field products |
author_facet |
Macrander, Annecke Böning, Carmen Boebel, Olaf Schröter, Jens |
author_sort |
Macrander, Annecke |
title |
A global Ocean Bottom Pressure data base as ground-truth reference for GRACE gravity field products |
title_short |
A global Ocean Bottom Pressure data base as ground-truth reference for GRACE gravity field products |
title_full |
A global Ocean Bottom Pressure data base as ground-truth reference for GRACE gravity field products |
title_fullStr |
A global Ocean Bottom Pressure data base as ground-truth reference for GRACE gravity field products |
title_full_unstemmed |
A global Ocean Bottom Pressure data base as ground-truth reference for GRACE gravity field products |
title_sort |
global ocean bottom pressure data base as ground-truth reference for grace gravity field products |
publishDate |
2006 |
url |
https://epic.awi.de/id/eprint/17704/ https://epic.awi.de/id/eprint/17704/1/Mac2006l.pdf https://hdl.handle.net/10013/epic.28127 https://hdl.handle.net/10013/epic.28127.d001 |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
EPIC3Geodetic Week 2006, 10 - 12 October 2006 . Munich, Germany. |
op_relation |
https://epic.awi.de/id/eprint/17704/1/Mac2006l.pdf https://hdl.handle.net/10013/epic.28127.d001 Macrander, A. , Böning, C. , Boebel, O. orcid:0000-0002-2259-0035 and Schröter, J. orcid:0000-0002-9240-5798 (2006) A global Ocean Bottom Pressure data base as ground-truth reference for GRACE gravity field products , Geodetic Week 2006, 10 - 12 October 2006 . Munich, Germany. . hdl:10013/epic.28127 |
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1810487322136805376 |