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[Jason-2] : Satellite in Safe Hold Mode since 14 September 2017 07:13:04 UTC

Thu, 2017-09-14 17:00
After 2 months of smooth operation on the Long Repeat Orbit (LRO) the Jason-2 spacecraft entered safe hold mode yesterday (Thursday, September 14th) at 07:13:04 UTC, immediately interrupting its measurements. The OPS team at NOAA and CNES applied immediately necessary procedures and the satellite is currently in a safe and stable Sun-pointing configuration. First investigations show that Gyrometer 1 was blocked, triggering the reconfiguration to SHM. The gyros temperature increase during period where Beta angle is high remains a concern.  All other equipments were OK at the time of the reconfiguration.
The 4 partners operational teams are working closely to support current and future operations. The mission will resume as soon as technically possible. T. Guinle & C. Marechal, CNES
Categories: Climate Science News

Hurricane Irma seen by remote sensing satellites

Thu, 2017-09-14 06:32
Hurricane Irma seen by remote sensing satellites : wind speed from Sentinel-1, wave heights from...
Categories: Climate Science News

4-11 September, 2017 week

Thu, 2017-09-14 05:18
Au Cnes on étudie l'évolution de l'océan et la prédiction des cyclones (La Dépêche, 2017/09/08)
Les coraux de l'océan Pacifique subissent un blanchissement massif (RTL, 2017/09/07)
Evidence of sea level 'fingerprints'  (NASA, 2017/09/07)
Réchauffement climatique : l'expédition Tara alerte sur le blanchissement massif des coraux (France Info, 2017/09/06)
Les grizzlys sont-ils en train de devenir « végétariens » sous l’effet du réchauffement climatique ? (Science Post, 2017/09/04)
Climat : "On aura des étés de plus en plus chauds, surtout si rien n'est fait contre le réchauffement" (France TV info, 2017/09/01)
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

September 2017: 25 years, and many more to come

Mon, 2017-09-11 01:10
Topex/Poseidon was launched 25 years ago: the starting point of a success story, still ongoing.
Categories: Climate Science News

August 20 - Septembre 3, 2017 weeks

Thu, 2017-09-07 06:42
Des ouragans plus puissants à cause du réchauffement climatique ? (Science Post, 2017/01/09)
Le réchauffement climatique pourrait réduire la taille du poisson (Le marin, 2018/08/29)
Ouragans : la faute du réchauffement climatique ? (Sciences Avenir, 2018/08/28)
Le réchauffement climatique rend l’est des Etats-Unis extrêmement vulnérable (le Monde, 2018/08/28)
Changement climatique : des cyclones plus intenses, mais pas plus fréquents (Sud Ouest, 2017/08/27)
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

August 2017: Currents & waves

Wed, 2017-09-06 02:20
Currents can influence waves. With the coming of SWOT high-resolution data, it is important to...
Categories: Climate Science News

[JASON-3] Expected telemetry outage during next JA3 DEM upload

Wed, 2017-08-30 00:53
A DEM (Digital Earth Model) update operation is currently ongoing on Jason 3. This DEM update will enable, once finished, measurements on 4400 new river targets and ~450 new lakes. Today, Wednesday 30th of August, the most complex part of that upload will take place between 14:00UTC and 14:20UTC. During that timeframe, a telemetry outage of less than 10 minutes should be expected. After that operation, Jason-3 telemetry will already benefit the updates of the DEM.  A last operation will take place tomorrow, Thursday 31st of August, around 14:30UTC, with an expected telemetry outage of approximately 3 minutes.
Categories: Climate Science News

23 July - 3 August, 2017 weeks

Thu, 2017-08-03 07:20
Un continent de déchets plastiques a été découvert dans l'océan Pacifique Sud, et il ferait plus d'1,5 fois la taille du Texas (Demotivateur, 2017/08/01)
Seulement 5 % de chances de limiter le réchauffement climatique à 2 °C (Le Monde, 2017/08/01)
Un satellite franco-israélien pour lutter contre le réchauffement climatique (Le Monde, 2017/07/08)
Maldives Plongée dans l'océan pour soigner les coraux (VSD, 2017/07/27)
Sécheresses et incendies, des phénomènes appelés à s’intensifier (Libération, 2017/07/26)
À l'assaut des déchets plastiques dans l'océan (L’Express, 2017/07/23)
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

July 2017: Higher resolution knowledge of flooded areas over the whole Earth

Mon, 2017-07-31 00:48
Waiting for Swot, knowledge of wetlands and flooded areas can be computed from the wealth of...
Categories: Climate Science News

CNES SEF-NG disturbences

Fri, 2017-07-28 06:12
Since July 20, recurring disturbances are observed on the CNES SEF-NG file exchange service. Everything is currently being implemented to restore service. We apologize for the inconvinience.
Categories: Climate Science News

[Jason-2] : Data production resumed - first products available

Thu, 2017-07-27 02:30
On 20 June 2017, the 4-Partner Joint Steering Group directed the Jason-2 Project to undertake a series of maneuvers to reduce the orbit semi-major axis by 27 km.  This has placed Jason-2 into a new long-repeat orbit (LRO) at roughly 1309.5 km altitude.  Final orbit transfer activities were completed on 10 July 2017. At 09:16 UTC on Tuesday, 11 July, CNES control centre successfully commanded the restart of the core Jason-2 payload instruments.     Before authorizing data dissemination, we have performed a lot of controls, calval analysis and cross-calibrations in order to guarantee the quality of the products. Meanwhile, this period has been useful to prepare a detailed technical note about the characteristics of the new orbit and impacts on new products. Please find attached the note prepared by MSE’s. As was the case with Jason-1, science cycle numbering for the new LRO mission phase on Jason-2 will begin at Cycle 500. Today, we recover the OSTM/Jason-2 mission from the extended safe hold it has been in since 17 May 2017 and we are pleased to announce that Jason-2 OGDR and IGDR are available for dissemination. First OGDR is for pass 031 of cycle 500. First IGDR is for pass 033 of cycle 500. They are available through the usual facilities. We hope to keep Jason-2 operational for a long time, Best regards,   T. Guinle on behalf the whole Jason-2 Project Team PS : The move of Jason-2 from the altimetry reference orbit was a difficult decision to take, but it also signals the start of an exciting new chapter in the extraordinary mission of Jason-2, as it begins its 10th year of operation.  
Categories: Climate Science News

16-22 July 2017 week

Thu, 2017-07-27 02:04
Feux de forêts: «Les incendies vont se multiplier avec le réchauffement climatique» (20 minutes, 2017/07/20)
Climat: l’appel désespéré des climatologues (Journal de l’environnement, 2017/07/19)
Une expédition pour évaluer l'acidification de l'océan Arctique (Centre d’information internet de Chine, 2017/07/19)
Globe had 2nd warmest year to date and 3rd warmest June on record (Noaa, 2017/07/18)
Stronger winds heat up West Antarctic ice melt (Science Daily, 201/07/17)
Drifting Antarctic iceberg A-68 opens up clear water (BBC, 2017/07/17)
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

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