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2020-01-17 Release of the regional XTRACK Tidal Constants product

The XTRACK Tidal Constant is a new added-value coastal altimetry product. It provides accurate along-track tidal constant estimates at regional scale and includes all coastal seas in the world. This product usefully completes tide gauge observations for tidal studies, the validation of tidal models or data assimilation into models.

2020-01-17 CNES DATA center access

Access to CNES Data Center is available again. Recovery is completed.

2020-01-07 Lake Kariba level is very low

The lake Kariba is a reservoir lake on the Zambezi basin. Its level has been dropping for the past year and a half.

2020-01-02 January 2020: Heat is going up in the Kerguelen fronts, following elephant seals

Combining altimetry heights and filaments with in situ data from marine animals'dive, the in-depth structure of a dynamic oceanic region such as the Kerguelen Island is better understood.

2019-12-12 December 2019: Mean dynamic topography

Since the first Mean Dynamic Topography dataset disseminated through Aviso, 15 years have gone by with several upgrades issued, and many improvements in quality and in the method used.

2019-12-11 Po river at a high level

Po level at a Jason-3 crossing (Hydroweb) The Po river, South of Venice in Italy is at a high level this late November, as seen by several altimeters

2019-12-02 AVISO+ FTP server recovery

Recovery of AVISO+ FTP server has been completed

2019-12-02 Temporary unavailability of the AVISO+ FTP server

AVISO+ FTP server is unavailable since Sunday December 1st 23h UTC.

2019-11-28 Venice Acqua Alta November 2019’ event measured by satellite altimetry

Sea level anomaly measured by the altimetry constellation over the Adriatic seas on the 13th of November 2019.

2019-11-27 SARAL/AltiKa : new GDR-F products standard demo delivery

A demo delivery of the SARAL/AltiKa new GDR-F products standard is now available.

2019-11-19 Release of the Mean Dynamic Topography MDT_CNES-CLS18

We are pleased to announce you that the latest version of the Mean Dynamic Topography called MDT_CNES-CLS18 is now available.

2019-11-13 November 2019: 2019 monsoon monitored using altimetry

Altimetry enables to follow and understand the sequence of events leading to monsoon onset, in conjunction with other remote sensing data

2019-11-07 FTP protocol important information

We would like to inform users that the FTP protocol is no longer supported by most common browsers

2019-10-25 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/Val strategies for upcoming missions (deadline:31st May 2020)

2019-10-22 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.

2019-10-15 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.

2019-10-08 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, NOAA, and EUMETSAT).

2019-10-01 October 2019: Monitoring an iceberg topography with altimetry

Satellite Radar altimetry can also measure ice topography over huge icebergs thus monitoring their melt and fragmentation.

2019-09-30 [Jason-2] OSTM/Jason-2 mission to cease acquisition of scientific data

After more than 11 years in orbit, the Ocean Surface Topography Mission (OSTM) on Jason-2 will permanently cease acquisition of scientific data.

2019-09-06 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, SMOS and SMAP and ocean ernergy content from models.

2019-09-02 September 2019: Internal tides in the Solomon Sea change with ENSO phases

A better knowledge of internal tides, both coherent and incoherent, is primordial for SWOT altimetry mission. A study in the Solomon Sea shows the complexity in predicting internal tides.

2019-08-05 How to use altimetry for hydrology? - now also in Spanish and Portuguese

A document to explain altimetry for hydrology on Aviso+

2019-08-01 August 2019: Fifty years ago...

Fifty years ago, a meeting took place in Williamstown, USA, where the possibilities for observing the Earth (solid and ocean), including from space, were discussed. Altimetry was much recommended.

2019-07-23 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.

2019-07-08 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

2019-07-03 July 2019: increasing wave power

Wave power, taking into account both the wave heights measured by altimetry and their periods has increased globally.

2019-06-20 [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.

2019-06-14 A glimpse on Swot satellite building and testing

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

2019-06-12 [SARAL/Altika] Cycle 128 GDR release

GDR cycle 128 (11 March 2019-15 April 2019) was just released recently

2019-06-07 June 2019: Modelling the flow

SWOT will provide brand new capabilities for hydrological measurements and studies. Preparation are ongoing, especially concerning the discharge estimation which will be part of the river products

2019-05-01 May 2019: Liguro-Provençal current seen by in situ instruments and altimetry

A multidata combined approach is a unique way to obtain a complete picture of a system as complex as the Liguro-provençal current.

2019-04-26 [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 procedures.

2019-04-25 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

2019-04-23 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.

2019-04-19 [Saral/AltiKa] Data information

SARAL/AltiKa satellite encounters since 3rd of February 2019 some issues affecting the nadir pointing accuracy. ISRO Operational Team in charge of the platform is doing many efforts to fix the issues and to recover a nominal mission as soon as possible.

2019-04-16 AVISO+ user satisfaction survey 2019

The 2019 user satisfaction survey is now closed. We thank you for your contribution. This anonymous 5-7 minute-questionnaire aims at improving the quality of our products and services.

2019-04-03 April 2019: Pantanal wetlands

Swot will enable to see both the temporal variations and the spatial complexity of the Pantanal wetlands' flooding, the largest tropical wetlands on Earth.