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.
Read moreVersion 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.
Read moreSwot 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.
Read moreNew 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.
Read morePolar 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.
Read moreSwot 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)
Read moreSWOT 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).
Read moreEl 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.
Read moreMonitoring 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 ...
Read moreFifth 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 moreXTRACK L2P 2022: new version v2.1
2023-06-01An udpate of the product XTRACK L2P 2022 has been made and is now available on AVISO+.
Read moreThe Swot CalVal site in Baie de Veys (Normandy, France) is set up and running
2023-05-30Swot "Adopt a Crossover" is also ongoing on the rivers and coastal areas. The Baie de Veys site has been installed in March, and now Lidar flight synchronized with Swot 1-day orbit are performed
Read moreSwot CalVal field work on the Amazon River
2023-05-30The SGB/CPRM (Geological Survey of Brazil) and IRD (France) realized a joint field work on the Amazon River for the calibration and validation (CalVal) phase of the Swot Satellite.
Read moreValidating Swot measurements in the Western Mediterranean Sea
2023-05-10A series of at-sea campaigns to calibrate and validate the Swot sea surface heights are ongoing. One of the Mediterranean Sea at-sea campaign was recently carried out, with interesting results to be compared with the Swot mission’s future data.
Read moreThe global OHC - EEI product is now in version 5.0
2023-04-25The global Ocean Heat Content and Earth Energy Imbalance has been updated in version 5.0 with the temporal period January 1993 - May 2022.
Read moreNew CFOSAT SWIM Ice products
2023-04-24CFOSAT SWIM ICE products provide sea ice detection, sea ice probabilities indicators that can be used either to improve SWIM data assimilation or to take benefits of the CFOSAT polar coverage to complement other sea-ice information sources.
Read moreXTRACK 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.
XTRACK L2P 2022: new version v2.1
An udpate of the product XTRACK L2P 2022 has been made and is now available on AVISO+.
The Swot CalVal site in Baie de Veys (Normandy, France) is set up and running
Swot "Adopt a Crossover" is also ongoing on the rivers and coastal areas. The Baie de Veys site has been installed in March, and now Lidar flight synchronized with Swot 1...
Swot CalVal field work on the Amazon River
The SGB/CPRM (Geological Survey of Brazil) and IRD (France) realized a joint field work on the Amazon River for the calibration and validation (CalVal) phase of the Swot ...
Validating Swot measurements in the Western Mediterranean Sea
A series of at-sea campaigns to calibrate and validate the Swot sea surface heights are ongoing. One of the Mediterranean Sea at-sea campaign was recently carried out, wi...
The global OHC - EEI product is now in version 5.0
The global Ocean Heat Content and Earth Energy Imbalance has been updated in version 5.0 with the temporal period January 1993 - May 2022.
New CFOSAT SWIM Ice products
CFOSAT SWIM ICE products provide sea ice detection, sea ice probabilities indicators that can be used either to improve SWIM data assimilation or to take benefits of the ...


2023-09-29 [SWOT] mission operations were stopped on September 21, 2023 due to a platform anomaly
2023-09-08 [SWOT] Production and release of O/I(GDR) products have resumed in nominal conditions.
2023-07-27 [SWOT] Spacecraft now on its 21-day repeat orbit
2023-07-13 [SWOT] Change of orbit
2023-06-30 SWOT L2_NALT_O/IGDR and L2_RAD_O/IGDR Release




