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. 

  • 7-13 April 2014 week

    2014-04-17

    L’eau sous nos pieds cartographiée depuis l’espace (IRD, 2014/04) Pour sauver nos océans, un changement culturel s'impose (Libération, 2014/04/10) 2036 ou quand le réchauffement climatique atteindra un seuil critique (Slate, 2014/04/08) On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and permanently available.

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    Release of DUACS 2014: Products changes and updates

    2014-04-15

    On April 15th, 2014 a new version of the SSALTO/Duacs products distributed by Aviso is released with significant upgrades.

    Read more

    2-9 April 2014 week

    2014-04-10

    L’Antarctique : dernière frontière, également pour la science (notre temps, 2014/04/05)La pêche chamboulée par le réchauffement climatique (Nord Pas –de-Calais, 2014/04/05)Pas de preuve de menace du réchauffement climatique pour le lac Tchad (RFI, 2014/04/05)« Quand les océans deviennent acides » (le Monde, 2014/04/04) On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and permanently available.

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    Jean-Michel Lefèvre has passed away

    2014-04-10

    Jean-Michel Lefèvre passed away on April 5th, 2014 after a long and hard fight against disease. His friends and co-workers remember him with respect and admiration. He will be missed by all.

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    24-30 March 2014 week

    2014-04-03

    Climat : des menaces multiples sur les océans (Le Figaro, 2014/03/31)Réchauffement climatique : nouveau rapport alarmant du GIEC (Le Monde, 2014/03/31)Le changement climatique affecte les éléphants de mer en Antarctique (News Environment, 2013/03/27)Le réchauffement climatique se ressent dans les profondeurs de l'océan (bulletins electroniques, 2014/03/24)On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and permane...

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    10 - 23 March 2014 week

    2014-03-25

    Le réchauffement fait fondre la dernière région stable de la calotte du Groenland (AFP, 2014/03/16)Un océan sous les océans (France24, 2012/03/14)Avec un réchauffement de 2 degrés, les étés en France dépasseront les 40 degrés (Le Monde, 2014/03/07)On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and permanently available.

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    February 23 - March 2, 2014 week

    2014-03-11

    El Nino menace les cultures agricoles mondiales cette année  (News environnement, 2014/02/24)Réchauffement climatique: le danger de la fonte des glaces anciennes (RTBF, 2014/02/21)NASA data find some hope for water in Aral Sea basin (Science Daily, 2014/02/14)Un immense glacier de l'Antarctique pourrait fondre encore des décennies (Huffingtonpost, 2014/02/20)On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and pe...

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    New website : AVISO+

    2014-02-27

    We are pleased to announce the official opening of AVISO+ !

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    Macinaggio tide gauge data reprocessed

    2014-02-27

    Macinaggio tide gauge data have been fully reprocessed on February 2014.

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    9-16 February 2014 week

    2014-02-17

    L'océan, un monde de ressources infinies (Le Monde, 2014/02/12) Le littoral aquitain a reculé de 10 mètres (Le Figaro, 2014/02/11) Les alizés seraient responsable du ralentissement du réchauffement climatique (Catnat, 2014/02/10)Is global warming hiding underwater? (ESA, 2014/02/07) On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and permanently available.

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    Mean Sea Level ocean indicators: Aviso one-satellite-based reprocessing

    2014-02-12

    The Mean Sea Level products have been reprocessed and updated until the end of 2013.

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    13-19 January 2014 week

    2014-01-23

    En France, un quart du littoral est rongé par l’érosion marine ! (RFI, 2014/01/19)Mieux comprendre le cycle saisonnier du phytoplancton dans l’océan Austral (INSU, 2014/01/14)L'océan côtier absorbe 250 millions de tonnes de carbone par an 2100 (Techno-Science, 2014/01/14) On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and permanently available.

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    AVISO 2014

    2014-01-21

    2014 will be a major milestone in the development of AVISO

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    Winter high waves in North Atlantic

    2014-01-17

    High waves in the North Atlantic and swell surge slammed the western coasts of Europe early in January. Altimetry data have measured these high waves.

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    Update of the Senetosa and Macinaggio tide gauges time series

    2014-01-17

    Be aware that an error occurred in generating data files before 2014: instead of what previously appeared in NetCDF attributes, the sea_levels are given relatively to TOPEX ellipsoid. All the files are now corrected from this header error and have been replaced. Fields concerned: ellipsoid_name, ellipsoid_axis and ellipsoid_flattening. Data values are not affected. Complete information here

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    5-12 January 2014 week

    2014-01-16

    Des réductions régionales importantes de biomasse dans l'océan profond à l'horizon de 2100 (Techno-Science, 2014/01/12)Vic-en-Bigorre. Glaciers pyrénéens : disparition engagée (La Dépêche, 2014/01/11)Climat : des perspectives affolantes pour la fin du siècle (Les Echos, 2014/01/07)On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and permanently available.

    Read more

    7-13 April 2014 week

    L’eau sous nos pieds cartographiée depuis l’espace (IRD, 2014/04) Pour sauver nos océans, un changement culturel s'impose (Libération, 2014/04/10) 20...

    Release of DUACS 2014: Products changes and updates

    On April 15th, 2014 a new version of the SSALTO/Duacs products distributed by Aviso is released with significant upgrades.

    2-9 April 2014 week

    L’Antarctique : dernière frontière, également pour la science (notre temps, 2014/04/05)La pêche chamboulée par le réchauffement climatique (Nord Pa...

    Jean-Michel Lefèvre has passed away

    Jean-Michel Lefèvre passed away on April 5th, 2014 after a long and hard fight against disease. His friends and co-workers remember him with respect and admiration. He...

    24-30 March 2014 week

    Climat : des menaces multiples sur les océans (Le Figaro, 2014/03/31)Réchauffement climatique : nouveau rapport alarmant du GIEC (Le Monde, 2014/03/31)Le changement...

    10 - 23 March 2014 week

    Le réchauffement fait fondre la dernière région stable de la calotte du Groenland (AFP, 2014/03/16)Un océan sous les océans (France24, 2012/03/14)Avec un r...

    February 23 - March 2, 2014 week

    El Nino menace les cultures agricoles mondiales cette année  (News environnement, 2014/02/24)Réchauffement climatique: le danger de la fonte des glaces ancienn...

    New website : AVISO+

    We are pleased to announce the official opening of AVISO+ !

    Macinaggio tide gauge data reprocessed

    Macinaggio tide gauge data have been fully reprocessed on February 2014.

    9-16 February 2014 week

    L'océan, un monde de ressources infinies (Le Monde, 2014/02/12) Le littoral aquitain a reculé de 10 mètres (Le Figaro, 2014/02/11) Les alizés seraient respo...

    Mean Sea Level ocean indicators: Aviso one-satellite-based reprocessing

    The Mean Sea Level products have been reprocessed and updated until the end of 2013.

    13-19 January 2014 week

    En France, un quart du littoral est rongé par l’érosion marine ! (RFI, 2014/01/19)Mieux comprendre le cycle saisonnier du phytoplancton dans l’océan Au...

    AVISO 2014

    2014 will be a major milestone in the development of AVISO

    Winter high waves in North Atlantic

    High waves in the North Atlantic and swell surge slammed the western coasts of Europe early in January. Altimetry data have measured these high waves.

    Update of the Senetosa and Macinaggio tide gauges time series

    Be aware that an error occurred in generating data files before 2014: instead of what previously appeared in NetCDF attributes, the sea_levels are given relatively to TOP...

    5-12 January 2014 week

    Des réductions régionales importantes de biomasse dans l'océan profond à l'horizon de 2100 (Techno-Science, 2014/01/12)Vic-en-Bigorre. Glaciers pyrénéen...

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  • AltiKa data over the Kara Sea enable to distinguish there the effects of ice melting and also the presence of...
    April 2014: Melting in the Kara Sea
  • Information about AVISO+ products latency & quality, satellite status, DORIS beacons status, etc.
  • 23 Oct2014

    23-24 Oct. 2014: 8th Coastal Altimetry Workshop

    27 Oct2014

    October 2014: OSTST Meeting et workshop IDS, Konstanz, Baden-Wurttemberg, Germany

    01 Mar2015

    March 2015: Jason-3 launch

    01 Jun2015

    June 2015: Sentinel-3A launch

  • Teachers and students, follow ocean buoys and animal beacons in the ocean!
  • Download the new AVISOcean application (v2) to help you discover the oceans and altimetry. More than 700 users have already downloaded the app! Join them! Available on Android and Apple.
  • Wave height and wind speed are highly dependent on the season, especially around the Antarctic, where winds and currents...
    Seasonal variations
  • Number and localization of AVISO+ visitors since Feb 11th, 2014. Yellow dots show recent visits.
  • Register to use AVISO+ products.

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