Abstract's details
Homogeneous multi-mission 20Hz sea level anomaly products assessment
CoAuthors
Event: 2023 Ocean Surface Topography Science Team Meeting
Session: Regional and Global CAL/VAL for Assembling a Climate Data Record
Presentation type: Type Poster
Contribution: PDF file
Abstract:
Since the launch of TOPEX/Poseidon in the early 90’s, more than 15 other Altimetry missions were launched and operated by different agencies. Our goal is to inter-calibrate all missions and provide as much as possible the same up to date corrections. It allows us to build a precise sea level for level 3 CMEMS (Copernicus Marine Service) products, to have consistent time series in the last 30 years for C3S (Copernicus Climate Change Service) and to build the global mean sea level.
Since 2021 level 2P 20 Hz data are also available on AVISO+ for Sentinel-3A, Sentinel-3B, Jason-3 and Sentinel-6A for near-real-time and short-time-critical timeliness. Hereafter the value-added sea level anomaly L2P products are presented. Our goal is to inter-calibrate all missions and provide as much as possible homogeneous up to date corrections. It allows us to build a precise sea level for level 3 CMEMS (Copernicus Marine Service) products, to have consistent time series in the last 30 years for C3S (Copernicus Climate Change Service) and to build the global mean sea level.
In the frame of the SALP (Service d’Altimétrie et de Localisation Précise) project supported by CNES (Centre National d’Etudes Spatiales) and of the Sentinel Marine Altimetry L2P-L3 Service (in cooperation agreement with EUMETSAT in the frame of the Copernicus Programme funded by the European Union) level 2P data are available to users for all the altimeter missions (TOPEX/Poseidon, Jason-1/2/3, ERS-1/2, Envisat, Saral/AltiKa, Sentinel-3A/B, Sentinel-6A, GFO, Cryosat-2, HY-2A/B) on AVISO+ ( https://www.aviso.altimetry.fr/en/data/products/sea-surface-height-products/global/along-track-sea-level-anomalies-l2p.html ) and L3 on CMEMS catalogue (https://marine.copernicus.eu).
Since 2021 level 2P 20 Hz data are also available on AVISO+ for Sentinel-3A, Sentinel-3B, Jason-3 and Sentinel-6A for near-real-time and short-time-critical timeliness. Hereafter the value-added sea level anomaly L2P products are presented. Our goal is to inter-calibrate all missions and provide as much as possible homogeneous up to date corrections. It allows us to build a precise sea level for level 3 CMEMS (Copernicus Marine Service) products, to have consistent time series in the last 30 years for C3S (Copernicus Climate Change Service) and to build the global mean sea level.
In the frame of the SALP (Service d’Altimétrie et de Localisation Précise) project supported by CNES (Centre National d’Etudes Spatiales) and of the Sentinel Marine Altimetry L2P-L3 Service (in cooperation agreement with EUMETSAT in the frame of the Copernicus Programme funded by the European Union) level 2P data are available to users for all the altimeter missions (TOPEX/Poseidon, Jason-1/2/3, ERS-1/2, Envisat, Saral/AltiKa, Sentinel-3A/B, Sentinel-6A, GFO, Cryosat-2, HY-2A/B) on AVISO+ ( https://www.aviso.altimetry.fr/en/data/products/sea-surface-height-products/global/along-track-sea-level-anomalies-l2p.html ) and L3 on CMEMS catalogue (https://marine.copernicus.eu).