Welcome to AVISO +

The reference portal in altimetry merging the historical AVISO website from Cnes and the CTOH website. Here, you will find data, articles, news and tools to help you discover or improve your skills in the altimetry domain through four key themes: ocean, coast, hydrology and ice. 


Call for articles for a Special Issue of Remote Sensing on Altimetry Cal/Val

2019-10-25

The call for papers is open to all aspects of calibration and validation over all surfaces and including Cal/val of the necessary ancillary information or details on Cal/Val strategies for upcoming missions (deadline:31st May 2020)

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Mescoscale Eddy Trajectory Atlas in Near-Real-Time

2019-10-22

The Aviso+ team is pleased to announce that the Mescoscale Eddy Trajectory Atlas in Near-Real-Time is now available on the Aviso+ ftp service.

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CFOSAT: first International Science Team meeting

2019-10-15

The first meeting of the CFOSAT International Science Team was held in Nanjing from 23 to 25 September 2019.

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Jason-2 altimetry satellite decommissioned after more than 11 years of ocean monitoring

2019-10-08

The ocean-observing altimetry satellite mission, Jason-2, will end on 10 October 2019 following a joint termination decision made by the four mission partners (NASA, CNES, NOAA, and EUMETSAT).

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Hurricane Dorian seen by satellites

2019-09-06

Hurricane Dorian seen by remote sensing satellites : wave parameters from CFOSAT, Jason-3, Jason-2 and Copernicus Sentinel-3A/B, wind speed from Copernicus Sentinel-1, SMOS and SMAP and ocean ernergy content from models.

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How to use altimetry for hydrology? - now also in Spanish and Portuguese

2019-08-05

A document to explain altimetry for hydrology on Aviso+

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Michel Lefebvre passed away on July 21st, 2019

2019-07-24

Michel Lefebvre passed away on July 21st, 2019. Captain of the merchant navy, astronomer, geodesist, driving force, inspiring person, human being and literary man, he has been and was all that and more. He was one of the pioneer of satellite radar altimetry, promoting the French project "Poséidon", and collaborating with the US "TOPEX" project in the 1980s to merge them into 'Topex/Poseidon'. He was instrumental in the success of the mission, of the collaboration between th...

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American Great Lakes at or near their highest in June/July this year

2019-07-23

All measurements, altimetry included, are showing the American Great Lakes are at a very high level this year.

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SWOT Science Team call (TOSCA)

2019-07-08

CNES, in agreement with NASA, is launching a call for SWOT scientific proposals for the period April 2020 through March 2024

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[Jason-2] Happy birthday Jason-2

2019-06-20

The Jason-2 oceanography satellite was launched on June 20, 2008. For the past 11 years, it has been accurately measuring the surface topography of the oceans.

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29 May - 17 June 2019 Press Review

2019-06-17

Big earthquakes might make sea level rise worse. Here's how. (National Geographic, 17/06/2019) Mapped Area of Ocean Floor Doubles (The Marine Executive, 14/06/2019) Could more Hurricanes cool down the Atlantic? (News4Jax, 13/06/2019) Antarctic glaciers to honour 'satellite heroes' (BBC, 07/06/2019) Video: Perpetual ocean (EarthSky, 07/06/2019) These high-tech seals are charting future sea level rise (Pri, 03/06/2019) Antarctique : l'apparition de trous dans la banquise enfin expliquée (S...

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A glimpse on Swot satellite building and testing

2019-06-14

A few photos showing building and testing of the future satellite Swot

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1- 19 May 2019 Press review

2019-05-20

Nearly a quarter of West Antarctic ice is now unstable (University of Leeds, 16/05/2019) Water cycle wrapped (ESA, 15/05/2019) Image: Antarctica detailed in 3-D (Phys.org, 14/05/2019) Explorer Reaches Bottom of the Mariana Trench, Breaks Record for Deepest Dive Ever (LiveScience, 13/05/2019) Where Did All the Free-Flowing Rivers Go? (EOS, 08/05/2019) El Niño has rapidly become stronger and stranger, according to coral records (The Conversation, 06/05/2019) As Sea Levels Rise, Expect More...

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[SARAL/Altika] Data quality : back to normal

2019-04-26

Since April 19th 2019, the availability and the quality of data measurements are better. ISRO teams have improved the pointing stability thanks to new operational procedures.

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Article on line: Scientists Invited to Collaborate in Satellite Mission’s Debut

2019-04-25

An article by SWOT PIs and Science team members to present the "Adopt a cross-over" Swot initiative

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Release of Jason-3 and Saral/Altika GDR annual validation reports 2018

2019-04-23

Those documents present the synthesis concerning validation activities of Jason-3 and Saral/Altika GDRs. They assess the altimeter data quality.

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Call for articles for a Special Issue of Remote Sensing on Altimetry Cal/Val

The call for papers is open to all aspects of calibration and validation over all surfaces and including Cal/val of the necessary ancillary information or details on Cal...

Mescoscale Eddy Trajectory Atlas in Near-Real-Time

The Aviso+ team is pleased to announce that the Mescoscale Eddy Trajectory Atlas in Near-Real-Time is now available on the Aviso+ ftp service.

CFOSAT: first International Science Team meeting

The first meeting of the CFOSAT International Science Team was held in Nanjing from 23 to 25 September 2019.

Jason-2 altimetry satellite decommissioned after more than 11 years of ocean monitoring

The ocean-observing altimetry satellite mission, Jason-2, will end on 10 October 2019 following a joint termination decision made by the four mission partners (NASA, CNES...

Hurricane Dorian seen by satellites

Hurricane Dorian seen by remote sensing satellites : wave parameters from CFOSAT, Jason-3, Jason-2 and Copernicus Sentinel-3A/B, wind speed from Copernicus Sentinel-1, S...

How to use altimetry for hydrology? - now also in Spanish and Portuguese

A document to explain altimetry for hydrology on Aviso+

Michel Lefebvre passed away on July 21st, 2019

Michel Lefebvre passed away on July 21st, 2019. Captain of the merchant navy, astronomer, geodesist, driving force, inspiring person, human being and literary man, he ha...

American Great Lakes at or near their highest in June/July this year

All measurements, altimetry included, are showing the American Great Lakes are at a very high level this year.

SWOT Science Team call (TOSCA)

CNES, in agreement with NASA, is launching a call for SWOT scientific proposals for the period April 2020 through March 2024

[Jason-2] Happy birthday Jason-2

The Jason-2 oceanography satellite was launched on June 20, 2008. For the past 11 years, it has been accurately measuring the surface topography of the oceans.

29 May - 17 June 2019 Press Review

Big earthquakes might make sea level rise worse. Here's how. (National Geographic, 17/06/2019) Mapped Area of Ocean Floor Doubles (The Marine Executive, 14/06/2019) C...

A glimpse on Swot satellite building and testing

A few photos showing building and testing of the future satellite Swot

1- 19 May 2019 Press review

Nearly a quarter of West Antarctic ice is now unstable (University of Leeds, 16/05/2019) Water cycle wrapped (ESA, 15/05/2019) Image: Antarctica detailed in 3-D (Phys...

[SARAL/Altika] Data quality : back to normal

Since April 19th 2019, the availability and the quality of data measurements are better. ISRO teams have improved the pointing stability thanks to new operational proced...

Article on line: Scientists Invited to Collaborate in Satellite Mission’s Debut

An article by SWOT PIs and Science team members to present the "Adopt a cross-over" Swot initiative

Release of Jason-3 and Saral/Altika GDR annual validation reports 2018

Those documents present the synthesis concerning validation activities of Jason-3 and Saral/Altika GDRs. They assess the altimeter data quality.

Products guide
L'altimétrie permet de suivre et de comprendre la séquence des événements qui conduisent à l'apparition de la...
Ocean indicator : Global Mean Sea Level rise