Towards a long-term sea level ground-truth dataset in Antarctica. Validation of Copernicus Sentinel-3B altimetry data
Time series of sea level data in the polar regions are a challenging task due to the presence of sea ice and severe weather conditions during most of the year. Long-term sea level measurements are crucial for sea level trend analysis under a climate change scenario, and for establishing the referenc...
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ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_5018452 2023-07-02T03:30:26+02:00 Towards a long-term sea level ground-truth dataset in Antarctica. Validation of Copernicus Sentinel-3B altimetry data Luengo-S, O. Gómez-Enri, J. Bruno Mejías, M. Berrocoso Domínguez, M. 2023 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018452 eng eng info:eu-repo/semantics/altIdentifier/doi/10.57757/IUGG23-2335 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018452 XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) info:eu-repo/semantics/conferenceObject 2023 ftgfzpotsdam https://doi.org/10.57757/IUGG23-2335 2023-06-11T23:39:54Z Time series of sea level data in the polar regions are a challenging task due to the presence of sea ice and severe weather conditions during most of the year. Long-term sea level measurements are crucial for sea level trend analysis under a climate change scenario, and for establishing the reference level for many applications. These records are obtained using in-situ tide gauges and, since the 1990s, satellite altimetry. The main aim of this work is the validation of Copernicus Sentinel-3B SAR altimetry data using a ground-truth station (pressure sensor) located in Livingston Island (South Shetland archipelago, about 100 km away from the Antarctic Peninsula). Time series of sea level span 4 years: from November 2018 to December 2022. Altimetry data are from the repository available in the European Space Agency Earth Console Parallel Processing Service (P-PRO). They are obtained in the crossover of two tracks (ascending orbit #0374 and descending #0109) near the tide gauge station (about 15 km). The in-situ station is deployed off the coast of Johnson Cove, on a small cove at the foot of a glacier in Livingston Island (62°39'38.70"S; 60°22'11.62"W). The time series of sea surface heights (not corrected by tidal effects) are referred to the WGS84 ellipsoid, allowing an absolute comparison of the records. Preliminary qualitative analysis shows a very good level of agreement between both datasets. Conference Object Antarc* Antarctic Antarctic Peninsula Antarctica Livingston Island Sea ice GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Antarctic The Antarctic Antarctic Peninsula Livingston Island ENVELOPE(-60.500,-60.500,-62.600,-62.600) Johnson Cove ENVELOPE(-38.083,-38.083,-54.017,-54.017) |
institution |
Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
English |
description |
Time series of sea level data in the polar regions are a challenging task due to the presence of sea ice and severe weather conditions during most of the year. Long-term sea level measurements are crucial for sea level trend analysis under a climate change scenario, and for establishing the reference level for many applications. These records are obtained using in-situ tide gauges and, since the 1990s, satellite altimetry. The main aim of this work is the validation of Copernicus Sentinel-3B SAR altimetry data using a ground-truth station (pressure sensor) located in Livingston Island (South Shetland archipelago, about 100 km away from the Antarctic Peninsula). Time series of sea level span 4 years: from November 2018 to December 2022. Altimetry data are from the repository available in the European Space Agency Earth Console Parallel Processing Service (P-PRO). They are obtained in the crossover of two tracks (ascending orbit #0374 and descending #0109) near the tide gauge station (about 15 km). The in-situ station is deployed off the coast of Johnson Cove, on a small cove at the foot of a glacier in Livingston Island (62°39'38.70"S; 60°22'11.62"W). The time series of sea surface heights (not corrected by tidal effects) are referred to the WGS84 ellipsoid, allowing an absolute comparison of the records. Preliminary qualitative analysis shows a very good level of agreement between both datasets. |
format |
Conference Object |
author |
Luengo-S, O. Gómez-Enri, J. Bruno Mejías, M. Berrocoso Domínguez, M. |
spellingShingle |
Luengo-S, O. Gómez-Enri, J. Bruno Mejías, M. Berrocoso Domínguez, M. Towards a long-term sea level ground-truth dataset in Antarctica. Validation of Copernicus Sentinel-3B altimetry data |
author_facet |
Luengo-S, O. Gómez-Enri, J. Bruno Mejías, M. Berrocoso Domínguez, M. |
author_sort |
Luengo-S, O. |
title |
Towards a long-term sea level ground-truth dataset in Antarctica. Validation of Copernicus Sentinel-3B altimetry data |
title_short |
Towards a long-term sea level ground-truth dataset in Antarctica. Validation of Copernicus Sentinel-3B altimetry data |
title_full |
Towards a long-term sea level ground-truth dataset in Antarctica. Validation of Copernicus Sentinel-3B altimetry data |
title_fullStr |
Towards a long-term sea level ground-truth dataset in Antarctica. Validation of Copernicus Sentinel-3B altimetry data |
title_full_unstemmed |
Towards a long-term sea level ground-truth dataset in Antarctica. Validation of Copernicus Sentinel-3B altimetry data |
title_sort |
towards a long-term sea level ground-truth dataset in antarctica. validation of copernicus sentinel-3b altimetry data |
publishDate |
2023 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018452 |
long_lat |
ENVELOPE(-60.500,-60.500,-62.600,-62.600) ENVELOPE(-38.083,-38.083,-54.017,-54.017) |
geographic |
Antarctic The Antarctic Antarctic Peninsula Livingston Island Johnson Cove |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Livingston Island Johnson Cove |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Livingston Island Sea ice |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Livingston Island Sea ice |
op_source |
XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.57757/IUGG23-2335 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018452 |
op_doi |
https://doi.org/10.57757/IUGG23-2335 |
_version_ |
1770274626388099072 |