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10-16 July 2017 week

Thu, 2017-07-20 01:00
Antarctic Ice Shelf Sheds Massive Iceberg (Earthobservatory, 2017/07/12)
Antarctique : l’un des plus gros icebergs de l’histoire vient de se détacher ! (SciencePost, 2017/07/12)
Warm winter events in Arctic becoming more frequent, lasting longer (Science Daily, 2017/07/11)
Dans l’Océan, les coraux produisent leur propre lumière pour survivre (SciencePost, 2017/07/11)
On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and permanently available.

Categories: Climate Science News

3-9 July, 2017 week

Wed, 2017-07-12 23:51
Réchauffement climatique: et cet iceberg géant qui finit de se détacher en Antarctique... (Sud Ouest, 2017/07/08)
Pour étudier les effets du changement climatique dans les océans : le navire Dr Fridtjof Nansen explore les eaux sénégalaises (Le Quotidien, 2017/07/07)
Le réchauffement climatique pourra entraîner des pluies diluviennes sur le Sahel (Sciences Avenir, 2017/07/06)
Veteran Ocean Satellite to Assume Added Role (Spacedaily, 2017/07/03)
On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and permanently available.

Categories: Climate Science News

Temporary unavailability of the LAS Service on July 10, 2017

Mon, 2017-07-10 23:31
For maintenance reason, the LAS Service (http://las.aviso.altimetry.fr/) has been unavailable from...
Categories: Climate Science News

Temporary unavailability of the Bulletin Service on July 06, 2017

Thu, 2017-07-06 05:15
For maintenance reason, the Bulletin Service (http://bulletin.aviso.altimetry.fr/) is unavailable...
Categories: Climate Science News

Water JPI 2017 Joint Call opening soon!

Thu, 2017-07-06 00:27
The Water JPI will launch on 30 August 2017 its new Joint Call on the topic “Water resource management in support of the United Nations Sustainable Development Goals”. For more information, please visit the 2017 Joint Call webpage here!
Categories: Climate Science News

25 Years of Progress in Radar Altimetry Symposium - 24-29 September 2018, Azores

Thu, 2017-07-06 00:14

Following on from the "15 Years of Progress in Radar Altimetry"  Symposium in 2006 and the "20 Years of Progress in Radar Altimetry"  Symposium in 2012, in Venice-Lido, Italy, both deemed very successful landmarks by the participants and the readership of the Proceedings, we are now at the twenty-five year anniversary of the launch of ERS-1 and TOPEX/POSEIDON. To mark this occasion the  European Space Agency, in collaboration with the French Space Agency,  CNES, is organising an exceptional Symposium on "25 Years of Progress in Radar Altimetry". This event will also be sponsored by other partner agencies and organisations supporting the development of altimetry. Along with this symposium, several related events will take place on the same week, including the annual meeting of the Ocean Surface Topography Science Team (OSTST) and the International Doris Service (IDS) workshop, as well as other thematic workshops still to be organised; potential topics are Sea Level for Climate, Coastal Zone, Space for Hydrology, Argo, etc. These events will be held over 6 days, from 24 to 29 of September 2018, in Ponta Delgada, São Miguel Island, Azores Archipelago (Portugal). 

Please consider your participation at this exceptional event and reserve the week from 24 to 29 September 2018 in your agenda. For the symposium, a call for papers with detailed information and deadlines will be sent subsequently, along with the details of a dedicated web site to submit your contributions to be reviewed by the Scientific Committee. For OSTST and IDS meetings, additional information and call for contributions will be sent out and linked to the same website.
    

Looking forward to another great "slow-time" event like the 15 and 20 Years of Progress in Radar Altimetry held in Venice in 2006 and 2012, an exceptional scientific Symposium on "25  Years  of  Progress  in  Radar  Altimetry"!

Looking forward to your participation!


Jérôme Benveniste and Pascal Bonnefond
on behalf of the 25 Years of Progress in Radar Altimetry Symposium Organising Committee

Pro Memoria:

The web site for 15YPRA is accessible at http://earth.esa.int/venice06
The web site for 20YPRA is accessible at http://esaconferencebureau.com/2012-events/12c01

Proceedings of 15YPRA on CD-Rom and athttp://www.esa.int/esapub/conference/toc/tocSP614.pdf
Proceedings of 20YPRA on CD-Rom and at http://www.spacebooks-online.com/product_info.php?cPath=104&products_id=17546


SUMMARY AND RECOMMENDATIONS FROM THE “20 YEARS OF PROGRESS IN RADAR ALTIMETRY” SYMPOSIUM, by Jérôme Benveniste, Rosemary Morrow, Jean-Louis Fellous and Albert Fischer is available at  http://esamultimedia.esa.int/multimedia/publications/SP-710/session_summaries.pdf

Categories: Climate Science News

25 June - 2 July, 2017 week

Wed, 2017-07-05 23:44
Changement climatique, les atolls résistent bien à l'élévation du niveau de la mer (Tahiti infos, 2017/06/30)
Record June Temperatures in Western Europe (WWA, 2017/06/29)
Comment le phytoplancton domine les océans ? Des chercheurs grenoblois ont la réponse (Placegrenet, 2017/06/27)
C’est donc prouvé, le niveau de la mer monte plus vite à cause de la fonte des glaces (Mashable, 2017/06/27)
Le Groenland, responsable de la hausse du niveau des océans (Le Figaro, 2017/06/26)
Climat. À lui seul, le Groenland peut faire monter les océans de 7 mètres (Ouest France, 2017/06/26)
Climat: les océans se réchauffent plus rapidement que prévu (BFM TV, 2017/06/27)
On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and permanently available.

Categories: Climate Science News

New product: Mesoscale Eddy Trajectory Atlas

Mon, 2017-07-03 05:00
We are proud to announce the release of a new AVISO+ dataset, the "Mesoscale Eddy Trajectory Atlas"...
Categories: Climate Science News

June 2017: Eddies everywhere

Mon, 2017-07-03 00:24
Eddies are ubiquitous in the ocean. They can be tracked and followed day by day for nearly 25 years.
Categories: Climate Science News

19-25 June 2017 week

Thu, 2017-06-29 06:48
Satellite image showcases centuries of desertification in India (Space Daily, 2017/06/21)
How phytoplankton rule the oceans (Phys.Org, 2017/06/21)
L’agence spatiale française s’attaque au réchauffement climatique (Le Monde, 2017/06/21)
Réchauffement climatique : les coraux de la mer Rouge font de la résistance (Le Quotidien, 2017/06/21)
On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and permanently available.

Categories: Climate Science News

Temporary unavailability of the CNES ftp server on June 29, 2017

Tue, 2017-06-27 04:53
For maintenance reason, the Cnes ftp server (ftp://avisoftp.cnes.fr) will be unavailable on June...
Categories: Climate Science News

[L2P Sentinel-3A] Operational release of Sentinel-3A Value Added products

Thu, 2017-06-22 06:30
All information on the front-page news.
Categories: Climate Science News

[Sentinel-3A] Operational release of Sentinel-3A Value Added products

Thu, 2017-06-22 05:30
The products processed by the Sentinel-3 Level 2P/L3 Marine Altimetry Service (CNES/CLS consortium under an EUMETSAT Contract, funded by the European Union) have been delivered as a pre-operational service on the AVISO+ dissemination since December 15th, 2016 for L2P NRT, January 17th, 2017 for L2P STC (see AVISO+ web page product) and on the CMEMS Catalogue since April 19th, 2017 for L3 NRT/STC products. The Products These products are derived from the SRAL (dual-frequency Synthetic Aperture Radar Altimeter) instrument onboard Sentinel-3. The L2P products are mono-mission global products containing 1 Hz along-track corrected sea surface heights with respect to a mean sea surface, corrections and geophysical parameters. The last versions of altimetric standards are used and there is a homogenised format for all satellites. They are generated in Near-Real Time (NRT), Short-Time Critical (STC) and Non-Time-Critical (NTC) timeliness. They are distributed in the user friendly NetCDF format. The added value compared to level 2 products is:
  • The update of geophysical standards to calculate sea level anomalies, such as
    • FES2014 ocean tide
    • CNES/CLS 2015 mean sea surface referenced to a 20 year reference period
    • Filtered ionospheric correction
    • Dynamical atmospheric correction for L2P NRT products (instead of only inverted barometer height correction in the case of L2 NRT products).
  • A validity flag to remove spurious measurements
  • The distribution of L2P SLA near real time products splitted in passes (instead of 10 minute granules for L2 near real time products).
The L3 Sentinel-3A products are global along-track products that contain time, sea level anomaly and absolute dynamic topography only for valid marine surfaces. The L3 products have under-gone a multi-mission cross-calibration process versus a reference mission (Jason-3).  The dissemination Considering the success of the pre-operational service delivery, EUMETSAT decided to begin the operational phase. Beginning on June 27th, the operational phase will imply the product’s warranty in terms of accuracy, fitness for use or purpose.  Note also the dissemination of Non-Time-Critical (NTC) Sentinel-3A products
  • will begin on June 27th for L2P on AVISO+ dissemination (delivery of cycle 12 on 27th and cycles 13 to 17 during the following week)
  • will be soon disseminated for L3 by CMEMS (delivery of days 2016/12/24 to 2017/01/07)
The L2P STC/NRT products are also available through EUMETSAT dissemination via EumetCast.              
Categories: Climate Science News

12-18 June, 2017 week

Thu, 2017-06-22 05:28
Coopération spatiale entre la France et les Etats-Unis Le CNES signe avec la NASA une déclaration sur Mars et l’océanographie (CNES, 2017/06/19)
Animaux & satellites : main dans la main pour observer l'océan austral (CNES, 2017/06/19)
Les insectes, la nouvelle menace en Antarctique ? (Le Point, 2017/06/18)
Impact d’une fonte accélérée de la calotte groenlandaise sur les mouvements migratoires au Sahel (INSU, 2017/06/09)
On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and permanently available.
Categories: Climate Science News

Campaign in the Lower Seine valley with GPS carpet/ Drone / Lidar

Thu, 2017-06-22 03:03
The SWOT (Surface Water and Ocean Topography) mission, result of a Franco-American cooperation (CNES / NASA, with the participation of CSA and UKSA), will measure rivers, lakes and coastal and estuarine area water heights (and their spatial and temporal variations), using a new technical concept: interferometric altimetry. In 2021, after the launch, the performance of SWOT will have to be calibrated and validated thanks to the contribution of other space missions, to available in-situ data, but also by dedicated means deployed on site during the overflight of the satellite in order to have co-temporal measurements. These means must be able to be deployed in remote sites in order to have ground truths on non-instrumented sites, so they must be light.

The GPS carpet in tow of the boat, and the Lidar



Among the various means envisaged to validate the SWOT measurements, the water height information derived from the GPS measurements on a specific buoy and / or the airborne Lidar and / or drone data are the most promising. In this context, CNES has asked its partners (IRD, INSU, CNRS, CLS, etc.) to develop resources that would be implemented during the Cal / Val phase in orbit in 2021. These resources have been developed and a test on the Seine estuary will take place on 22 and 23 June 2017 in order to validate the behavior of the different vectors.

The estuary of the Seine has been retained as a test zone because of the knowledge of this area and the availability of technical means by the “Continental and Coastal Morphodynamics” UMR CNRS 6143 team (M2C). Moreover, the monitoring of the water levels along the estuary by the tide gauges of the Grand Maritime Port of Rouen will provide an independent ground truth.

The CalNaGeo GPS data carpet produced by the Technical Division of the National Institute for the Sciences of the Universe (DT-INSU) in 2016 follows similar developments in the past for the validation of oceanographic measurements for the Jason-2 and 3 missions. The new design of the GPS carpet has been adapted to the problems of continental hydrology. It will be towed by a boat, the "MONOD-ROUEN" of the M2C laboratory.

A light weight altimeter was developed by engineers of the Collecte Localisation Satellites (CLS) company early 2017 to be embarked on a drone. It uses a lidar technology. The drone should follow the boat in order to compare the altimeter performance with those of the GPS carpet. It should fly in the wake of the boat, just in front of the GPS (about 30 m behind the boat, depending on the wake). The drone flies at 30 m altitude and two people (a telepilot and an operator) are planned on the boat to ensure its control. The drone has an automatic pilot with detection and avoidance of possible obstacles (bridges, electrical wires), the pilot being present on boat to take control in case of an incident.

At the same time lidar surveys will be carried out. The LIDAR instrument of the M2C laboratory will be onboard an aircraft that will fly over the lower Seine valley during the two-day campaign. These surveys will be carried out within the framework of the COTEST project coordinated by the M2C laboratory and supported by the CNES TOSCA program.

Categories: Climate Science News

Special Issue of Remote Sensing, "Satellite Altimetry for Earth Sciences" in preparation

Wed, 2017-06-21 07:41
Satellite altimetry was initially designed for measuring the ocean’s topography, with reference to an ellipsoid, and for the determination of the marine geoid. Satellite altimetry has provided extremely valuable information on ocean science (e.g., circulation surface geostrophic currents, eddy structures, wave heights, and the propagation of oceanic Kelvin and Rossby waves). With more than 25 years of observations, it is also becoming vital to climate research, providing accurate measurements of sea level variations from regional to global scales. Altimetry has also demonstrated a strong potential for geophysical, cryospheric and hydrological research, and is now commonly used for the monitoring of Arctic and Antarctic ice shet topography, and of terrestrial surface water levels.

A Special Issue of Remote Sensing, "Satellite Altimetry for Earth Sciences" is in preparation. It aims to present reviews and recent advances of general interest in the use of radar altimetry in Earth sciences. Manuscripts can be related to any aspect of radar altimetry technique or geophysical applications. Manuscript resulting from application of new altimetric technology (SAR, SARin and Ka band) and improvements expected from missions to launched in the close future (i.e., SWOT) are also encouraged.
Contributions can be either a review paper on some specific topics, or an original research in this area. For more information about the Special Issue, please see:
  • http://www.mdpi.com/journal/remotesensing/special_issues/SA
Categories: Climate Science News

[L2P Sentinel-3A] : maintenance of the L2P software on June 19th

Thu, 2017-06-15 01:46
Due to a software maintenance, the delay delivery of L2P STC and NRT will be disrupted on June 19th...
Categories: Climate Science News

5-11 June, 2017 week

Thu, 2017-06-15 00:48
Impact d’une fonte accélérée de la calotte groenlandaise sur les mouvements migratoires au Sahel (INSU, 2017/06/09)
Les océans, un gage pour l’avenir de la planète (Libération, 2017/06/08)
L’océan mondial, pollué par les déchets plastiques! (Natura Sciences, 2017/06/08)
Finding new homes won't help emperor penguins cope with climate change (Science Daily, 2016/06/07)
On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and permanently available.

Categories: Climate Science News

29 May - 5 June, 2017 week

Wed, 2017-06-07 23:58
Journée mondiale de l'océan le 8 juin : "Tortue où vas-tu ?" (CNES, 2017/06/06)
Sale temps pour la planète saison 9 épisode 1 - La Bretagne, contre vents et marées (France TV, 2017/06/06
Le chef de l'ONU appelle à sauver les océans (Presse Ocean, 2017/06/05)
Face au changement climatique, l’ONU veut inciter à la création d’aires marines protégées (Le Monde, 2017/06/05)
Retour sur Terre de Thomas Pesquet le 2/06/2017 (CNES, 2017/06/02)
Le réchauffement climatique pourrait favoriser les émissions de gaz hilarant en Arctique (France TV info, 2017/06/01)
On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and permanently available.

Categories: Climate Science News

22-28 May, 2017 week

Thu, 2017-06-01 06:02
La réserve mondiale de graines est menacée par le réchauffement climatique (Les Echos, 2017/05/30)
Ocean CleanUp, le projet fou de nettoyer les océans débutera en 2018 (UP Mag, 2017/05/29)
NASA Discovers a New Mode of Ice Loss in Greenland (Space daily, 2017/05/26)
À cause du réchauffement climatique, la végétation s'empare de l'Antarctique (Konbini, 2017/05/25)
Scientists say the pace of sea level rise has nearly tripled since 1990 (The Washington Post, 2017/05/22)
On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and permanently available.

Categories: Climate Science News