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12-18 February 2018 week

Fri, 2018-02-23 03:16
La terre risque de devenir un désert en 2050 à cause du réchauffement climatique (Fredzone, 2018/02/18) What is the longest-lived marine mammal? (National Ocean Service, 2018/02/16) L'ONG WWF au secours des phoques de Saaima (France Info, 2018/02/16) L’effondrement brutal de deux glaciers tibétains élucidé (Pour la Science, 2018/02/09) L'Atlantique Nord devient bien plus acide (Le Figaro, 2018/02/12) L'acidification des océans aura des conséquences préoccupantes sur les espèces marines (MaxiSciences, 2018/02/15) 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

[JASON-2] : SATELLITE IN SAFE HOLD MODE SINCE TUESDAY FEBRUARY 20th 18:40:09 UTC

Thu, 2018-02-22 07:25
Jason-2 spacecraft entered into safe mode Tuesday, February 20th at 18:40:09 UTC, immediately interrupting its measurements at the end of cycle 522.    The satellite is currently in a safe and stable Sun-pointing configuration. In the same way as during the last 3 SHMs. This interruption is due to the disjunction of a gyro (in this case Gyro 2, which was operating nominally since mid-October). In the future days, the exact status of the platform will be monitored, and the best schedule to resume the mission will be determined to keep users informed of the progress.
Categories: Climate Science News

5-11 February 2018 week

Thu, 2018-02-15 02:26
La Nasa a recréé un "Océan extraterrestre" pour tester un nouveau type de submersible (Fredzone, 2018/02/08)
Réchauffement climatique : l'affaire de tous (La Dépêche, 2018/02/09)
Réchauffement : l'océan monte mais... ces atolls s'agrandissent ! (Le dauphine, 2018/02/09)
Raconter le climat, un projet fidjien qui laisse l’UE de marbre (Euractiv, 2018/02/09)
Sea floor uplift after last ice age causes methane release in the Arctic today (Sciencedaily, 2018/02/06)
L’impact du réchauffement climatique sur les ours polaires est pire que ce que l’on estimait (Daily Geek Show, 2018/02/05) 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

SSALTO Ground Segment data delay

Mon, 2018-02-12 09:04
Some products have not been delivered this weekend due to a problem on the exchange server. Since this morning the situation has become nominal again.
Categories: Climate Science News

29 January - 4 February, 2018 week

Tue, 2018-02-06 08:06
Inondations. Et si le réchauffement climatique était responsable ? (Ouest France, 2018/02/04) Réchauffement climatique : le littoral européen menacé par la montée des eaux (Euronews, 2018/02/02) Réchauffement climatique: L'ours polaire ne trouve plus assez de phoques pour se nourrir (20 minutes, 2018/02/02) Sentinel-3B good to go (ESA, 2018/02/02) Acidité des océans : quel sera l'impact de variations saisonnières plus marquées ? (INSU, 2018/01/30) En 2017, nos océans n’ont jamais été aussi chauds (rse.net, 2018/01/30) 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

21-28 January 2018 week

Thu, 2018-02-01 06:23
Les océans contenaient de l’oxygène 250 millions d’années avant l’atmosphère ! (Science post, 2018/01/29) Savoirs pour tous : niveau de la mer et réchauffement climatique (Tahiti info, 2018/01/26) Climat : la chaude année 2017 en graphiques (Le Monde, 2018/01/20) Alerte sur l'océan : la fréquence du blanchissement des récifs coralliens s’accélère (Sud Ouest, 2018/01/20) 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

June 2018 : 11th edition of the Coastal Altimetry Workshop (CAW-11) preceded by a Coastal Altimetry Training Course

Tue, 2018-01-30 07:23
============================= 11th Coastal Altimetry Workshop and Coastal Altimetry Training Course 12 - 15 June 2018 ESA ESRIN, Frascati www.coastalaltimetry.org ============================== Announcement of the 11th edition of the Coastal Altimetry Workshop (CAW-11) that will take place at ESA/ESRIN on 13-15 June 2018, preceded by a Coastal Altimetry Training Course on June 12.  The website is http://www.coastalaltimetry.org . In the next few days the website will be open for abstract submission. Important Dates: Deadline for abstract submission (both for oral and poster presentations) 23 March 2018 Notification to authors27 April 2018 Deadline for Registration to the Coastal Altimetry Training Course (free of charge)15 May 2018 Deadline for registration to the Workshop (free of charge)15 May 2018 Coastal Altimetry Training Course12 June 2018 11th Coastal Altimetry Workshop13-15 June 2018 (from the CAW-11 OrgComm: Jérôme Benveniste, Remko Scharroo, Paolo Cipollini, Eric Leuliette, Marcello Passaro, Nicolas Picot, Marco Restano, Doug Vandemark, Stefano Vignudelli )
Categories: Climate Science News

Rough sea state during Carmen and Eleanor storms

Fri, 2018-01-26 02:00
In early January, the two storms Carmen and Eleanor lined up off the western european coasts and one after another,  headed due east, south east, two days apart. In a few hours, on the day of January 1, 2018, the storm Carmen reached the whole country: first Brittany area early in the day before moved into Corsica at the end of the day. A new gust of wind followed very quickly: on the days of 02 and 03 January, Eleanor tracked up through a large part of the hexagon. Waves and gusts caused damage to the coast and all along the land path of both storms. At sea, satellite and in-situ instruments were able to measure the waves height at the passage of these storms. The in-situ buoy at 13 km off Cap Ferret (Gironde) from CANDHIS network measured significant wave height of more than 8 m, on January 1, 2018, at 05:00 pm (Figure 1 below). The Sables d'Olonne (Vendée) tide gauge from the REFMAR network measured a surge between 0.6 m and 0.7 m in the morning of January 1, 2018 (Figure 2). Unlike storm Xynthia, in February 2010, the peak of the Carmen storm occurred during a low tide (Figure 2). The Jason-3 (conventional altimeter) and Sentinel-3A (SAR altimeter) satellites flew over the Bay of Biscay area as the storm occured. For example, Jason-3 measured a 9.7m wave off Île de Ré (Charente Maritime) on January, 1, 2018, 8:25 am (pass 248, cycle 0069). Significant Wave Heights from in-situ CANDHIS buoys Hauteurs de vagues en Atlantique mesurées par les bouées du réseau CANDHIS au passage de Carmen et Eleanor début 2018

Figure1: Significant Wave Heights (H1/3) measured from buoys on CANDHIS network when the stroms Carmen and Eleanor hit the french coasts in early January 2018. An another plot is available here for 3 buoys off Medirranean coasts (Banyuls, Porquerolles et La Revellata). Credits CANDHIS (plot and interface) and CEREMA (photo on the buoy, in the middle).

Sea level due to tides and surges from REFMAR tide gauges

Figure2: Visualisation Interface for tide gauges data from REFMAR network, SHOM (left). The selected tide gauge is located in Les Sables d'Olonne as the storms occured. Credits SHOM-CCI Vendée.

Significant Wave Heights Jason-3 and Sentinel-3A satellites

Figure3: Significant Wave Heights (H1/3) measured by Jason-3 (left) and Sentinel-3A (right) as Carmen et Eleanor, at the passage of the storms, between 2017/12/31 and 2018/01/03. Credits EU Copernicus Marine Service.

Further information
  • on Météo France website (in french): Décryptage, les dernières tempêtes (04/01/2018)
  • Data access:
    • Significant wave heigths from Jason-3 and Sentinel-3A, European Copernicus Marine Service
    • Sea level (tides and surges) from REFMAR network on ODATIS catalogue
    • Significant wave heights from CANDHIS network on ODATIS catalogue
Categories: Climate Science News

14-21 January 2018 week

Thu, 2018-01-25 08:37
Comment empêcher que toutes les tortues de la Grande Barrière de corail ne deviennent des femelles ? (Science post, 2018/01/21) Parole d’expert. Ce plastique qui menace l’océan (Ouest France, 2018/01/20) Climat : le satellite CFOSat étudiera le vent et les vagues à la surface de l'océan (RTL, 2018/01/19) Suivre le niveau marin en Polynésie durant les six derniers millénaires (INSU, 2018/01/18) Le changement climatique acidifie aussi les lacs et les rivières (Science post, 2018/01/17) 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

SSALTO Ground Segment data production recovery

Thu, 2018-01-25 07:55
impacted products: OSTM/Jason-2, Jason-3, Cryosat-2
Categories: Climate Science News

8-20 January, 2018 weeks

Tue, 2018-01-23 06:55
Le réchauffement climatique pourrait dépasser le seuil des 1,5°C d'ici 2050 (News environnement, 2018/01/13) Le réchauffement climatique augmentera le risque de crues (Les Echos, 2018/01/11) Tempêtes/avalanches: pas la faute du réchauffement (le Figaro, 2018/01/05))  Réchauffement climatique: Le blanchissement des récifs coralliens s'accélère et inquiète les scientifiques (20 minutes, 2018/01/05) Désoxygénation de l’océan : une grande étude en révèle les dangers et les solutions (INSU, 2018/01/04) On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and permanently available.
Categories: Climate Science News

SSALTO ground segment data production delayed

Mon, 2018-01-22 08:42
Due to an unexpected anomaly occurred Saturday January 20th and affecting the SSALTO ground segment, data production is delayed. OPS team are working to solve the issue and we except to be back to routine in few hours. 
Data products delayed are : IGDR Jason-2, IGDR Jason-3, Cryosat orbit  AVISO products delayed are : Mozambique, Wind, Wave
Categories: Climate Science News

September 2018 : CALL FOR ABSTRACTS for the "25 years of Progress in Radar Altimetry" Symposium

Tue, 2018-01-16 07:01


    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. 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, the abstracts submission opens today.  You are kindly invited to submit your abstract(s) not later than 1 March 2018.

    Please link to http://www.altimetry2018.org to get familiar with the Themes & Objectives and the type of presentation to request (Oral Keynote, Oral Review, Oral or Poster) and to submit your (max 500 words) abstract(s).

    Abstracts will be selected by the Scientific Committee on the basis of their scientific content and relevance to the themes of the symposium. Authors will be notified of the decision and the type of presentation (Oral Keynote, Oral Review, Oral or Poster) by 27 April 2018.

 

    For OSTST and IDS meetings, additional information and call for contributions will be sent out separately.

 

    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!

Categories: Climate Science News

April 2018: Call for abstracts for the "International Review Workshop On Satellite Altimetry Cal/Val Activities and Applications"

Tue, 2018-01-09 03:09
The call for abstracts is now open for the  "International Review Workshop On Satellite Altimetry Cal/Val Activities and Applications".  This International Review is to be held in Chania, Crete, Greece, 23-26 April 2018 and is sponsored by the European Space Agency, EUMETSAT and the IAG/IUGG Commission 2.

The aim is to present the latest research results in the field of satellite altimetry calibration and altimetry applications for monitoring ocean changes and for improving Earth observation in an objective, continuous, homogeneous and reliable manner, free of errors and biases, and tied from one altimetry mission to the next. The intention is to support long-term monitoring of climate changes by understanding better environmental changes on world's oceans, terrestrial surface waters, but also on Arctic and Antarctic polar regions. The final outcome is to establish and promote a scientific roadmap with procedures, protocols, guidelines, and best practices in an open and transparent way to be followed by any international group working on satellite altimetry to attain SI traceability of their measurements, results and data products.

Please visit the website is http://www.frm4alt.eu/int-cal-val-review  for further information and updates. 
Categories: Climate Science News

24-31 December 2017 week

Thu, 2018-01-04 06:35
Les satellites, un outil indispensable dans la bataille pour le climat (Sciences et Avenir, 2017/12/31) Un nouvel océan en formation au niveau de la Corne de l’Afrique (Science Post, 2017/12/27) Des données satellitaires globales permettent de mettre en évidence des empreintes des courants océaniques sur la tension de vent induites par des interactions entre l'océan et atmosphère (INSU, 2017/12/26) 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

January 2018: Antarctic megadunes seen in a Digital Elevation Model from altimetry

Wed, 2018-01-03 05:41
Space techniques, including altimetry, enable to map Antarctica and its topography. With the new,...
Categories: Climate Science News