Release of Reprocessed TOPEX/Poseidon Data
2023-11-15It is with enormous pleasure and no small amount of relief that we announce the release of the newly reprocessed TOPEX/Poseidon Data, just 11,411 days after launch.
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Rapid-changing ocean circulation seen thanks to the Swot 1-day orbit
2023-11-10During the first six months of the mission, Swot was placed in a 1-day orbit that passed over the same point every day, with the added benefit of observing rapidly changing features of the oceans.
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Swot's detailed view of the ocean
2023-10-18One of the Swot mission (Nasa/Cnes) goals is to detect fine scale ocean features (15-150 km), unprecedently observed by nadir-looking altimeters.
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New DAC dedicated to SWOT Calval Phase
2023-10-16The Dynamic Atmospheric Correction dedicated to the SWOT Calval phase is now available on AVISO+. During the SWOT Calval phase, to fulfill the primary DAC objective and focus on the aliased ocean signals, a specific DAC has been computed.
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Release of MSS CNES CLS 2022
2023-10-03The Mean Sea Surface MSS CNES CLS 2022 is now available on AVISO+. It has been computed using a 29-year [1993-2021] period of altimetric data.
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XTRACK L2P 2022: New AZORES area
2023-09-12A new area AZORES has been added to the XTRACK L2P version 2022 product. There are now 27 coastal areas that are distributed.
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Version 1.1 of Wet Troposphere Correction from water vapour CDRs
2023-08-07The new version 1.1 of the Wet Troposphere Correction from water vapour climate data records is now online on Aviso+, taking into account new versions of input data.
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Swot orbit changed for the "science" orbit
2023-08-02Between 10 and 20 July, Cnes teams performed a series of manoeuvres to raise Swot satellite's altitude by 33 km. The satellite has been in a calibration and validation 1 day orbit for 6 months. The aim of the orbit change is to transfer it to its final "science" 21 day-orbit, at an altitude of 891 kilometers.
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New on AVISO+: Barystatic and manometric sea level changes from satellite geodesy
2023-07-12The barystatic and manometric sea level changes represent the mass component of sea level changes at global and regional scales respectively. They are estimated here using two different approaches: from satellite gravimetry and from sea level budget.
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Polar Oceans Products: release of v2.0
2023-07-03A new version v2.0 is available for Arctic and Southern Oceans SSALTO/DUACS experimental gridded and along-track products.
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Swot campaign in the Western Pacific
2023-06-30The Cruise LGD2308 left Taiwan onboard the ship Legend to measure sea surface heights and detecting oceanic eddies using GNSS for Swot validation (June 23 -July 3, 2023)
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SWOT L2_NALT_O/IGDR and L2_RAD_O/IGDR Release
2023-06-30The Surface Water and Ocean Topography (SWOT) project is pleased to announce the public release of Level 2 science data products from the onboard nadir altimeter (NALT) and advanced microwave radiometer (AMR).
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El Niño’s back in 2023
2023-06-22Altimetry sea level anomalies have been showing an elevation all along the Equator in the Pacific for the past four months.
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Monitoring of the Kakhovka reservoir/river by altimetry
2023-06-22The Hydroweb database – https://hydroweb.theia-land.fr/ – is monitoring changes in water levels over time on large lakes, reservoirs and rivers, from altimetry measurements. Hydroweb was not originally designed to monitor the degradation of reservoirs, either naturally or as a result of destruction, such as at the Kakhovka dam on the Dniepr river. Although it did provide relevant and accurate information on the evolution of the reservoir in the days following its recent explosion. These ...
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Fifth Space for Hydrology Workshop (Hydrospace 2023)
2023-06-16ESA, Cnes and Gewex are organising a sequel joint event to Hydrospace 2021 and EO4Water 2020: The 5th Space for Water Cycle and Hydrology Workshop, Hydrospace 2023.
Read moreSwot first images
a video clip of the first images from the Swot mission
Release of Reprocessed TOPEX/Poseidon Data
It is with enormous pleasure and no small amount of relief that we announce the release of the newly reprocessed TOPEX/Poseidon Data, just 11,411 days after launch.
Rapid-changing ocean circulation seen thanks to the Swot 1-day orbit
During the first six months of the mission, Swot was placed in a 1-day orbit that passed over the same point every day, with the added benefit of observing rapidly changi...
Swot's detailed view of the ocean
One of the Swot mission (Nasa/Cnes) goals is to detect fine scale ocean features (15-150 km), unprecedently observed by nadir-looking altimeters.
New DAC dedicated to SWOT Calval Phase
The Dynamic Atmospheric Correction dedicated to the SWOT Calval phase is now available on AVISO+. During the SWOT Calval phase, to fulfill the primary DAC objective and f...
Release of MSS CNES CLS 2022
The Mean Sea Surface MSS CNES CLS 2022 is now available on AVISO+. It has been computed using a 29-year [1993-2021] period of altimetric data.
XTRACK L2P 2022: New AZORES area
A new area AZORES has been added to the XTRACK L2P version 2022 product. There are now 27 coastal areas that are distributed.
Version 1.1 of Wet Troposphere Correction from water vapour CDRs
The new version 1.1 of the Wet Troposphere Correction from water vapour climate data records is now online on Aviso+, taking into account new versions of input data.
Swot orbit changed for the "science" orbit
Between 10 and 20 July, Cnes teams performed a series of manoeuvres to raise Swot satellite's altitude by 33 km. The satellite has been in a calibration and validation 1 ...
New on AVISO+: Barystatic and manometric sea level changes from satellite geodesy
The barystatic and manometric sea level changes represent the mass component of sea level changes at global and regional scales respectively. They are estimated here usin...
Polar Oceans Products: release of v2.0
A new version v2.0 is available for Arctic and Southern Oceans SSALTO/DUACS experimental gridded and along-track products.
Swot campaign in the Western Pacific
The Cruise LGD2308 left Taiwan onboard the ship Legend to measure sea surface heights and detecting oceanic eddies using GNSS for Swot validation (June 23 -July 3, 2023)
SWOT L2_NALT_O/IGDR and L2_RAD_O/IGDR Release
The Surface Water and Ocean Topography (SWOT) project is pleased to announce the public release of Level 2 science data products from the onboard nadir altimeter (NALT) a...
El Niño’s back in 2023
Altimetry sea level anomalies have been showing an elevation all along the Equator in the Pacific for the past four months.
Monitoring of the Kakhovka reservoir/river by altimetry
The Hydroweb database – https://hydroweb.theia-land.fr/ – is monitoring changes in water levels over time on large lakes, reservoirs and rivers, from altimetry measuremen...
Fifth Space for Hydrology Workshop (Hydrospace 2023)
ESA, Cnes and Gewex are organising a sequel joint event to Hydrospace 2021 and EO4Water 2020: The 5th Space for Water Cycle and Hydrology Workshop, Hydrospace 2023.
2023-11-08 [TOPEX] release of the fully reprocessed Geophysical Data Record (GDR-F version)
2023-10-31 [CFOSAT] SWIM Processing anomaly since Oct 26 9h50TU and until Nov 2 0hTU
2023-10-13 [SWOT] The reprocessed SWOT 1-day orbit IGDR nadir altimeter products for the period from March 29 to July 10, 2023 are now available at AVISO.
2023-10-04 [SWOT] Production and release of the SWOT products have resumed on September 28, 2023.
2023-09-29 [SWOT] mission operations were stopped on September 21, 2023 due to a platform anomaly
