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November 2017: tracking water bodies

Fri, 2017-11-17 06:43
Jason-3 altimeter has a Digital Elevation Model tracking mode designed to overcome side reflections from steep-bkaned rivers
Categories: Climate Science News

[Sentinel-3A] New version of Non-Time-Critical Sentinel-3A L2P products

Fri, 2017-11-17 01:49
These products are processed by the Sentinel-3 L2P/L3 Marine Altimetry Service (CNES/CLS), in the frame of a EUMETSAT contract, funded by the European Union.  The new version 02_00 is disseminated by AVISO+ via ftp or AVISO+ CNES Data Center (see the product sheet) and it will also be disseminated by EUMETSAT (via EUMETCast,  EUMETSAT Data Centre and potentially via CODA). Note that the last cycle produced in version 01_00 has already been delivered (cycle 22). The next cycle 23 will be produced only in version 02_00.  With this new version:
  • the input data are the “spring 2017 reprocessed” version of input NTC L2 products fully detailed in the EUMETSAT S3A STM reprocessing technical note
  • the standards are the same as in 01_00 version
  • new cycles are available (cycles 5 to 11)
Categories: Climate Science News

5-12 November 2017 week

Thu, 2017-11-16 06:38
Le cri d’alarme de quinze mille scientifiques sur l’état de la planète (Le Monde, 2017/11/13) COP23 : comment les pays s’engagent-ils pour l’océan et le climat ? (Le Monde, 2017/11/12) Africa’s Great Lake Hanging in the Balance (Earth Observatory, 2017/11/09) Le renouvellement de l’océan profond contraint par la forme du relief sous-marin (INSU, 2017/11/08) On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and permanently available.
Categories: Climate Science News

Dissemination of incorrect Jason-2 IGDR products (cycles 507 to 512)

Thu, 2017-11-16 02:14
Due to a wrong processing configuration, Jason-2 IGDR cycles 507 to 512 are incorrect (datation bias of over 2ms, same anomaly as for cycles 505-506). These products have been deleted from avisoftp.cnes.fr server and must be discarded. The IGDR processing configuration anomaly has been identified. Jason-2 IGDR reprocessing is ongoing. Nevertheless, these products need validation before any dissemination. We expect to be back to nominal by the middle of next week.  We apologize for the inconvenience
Categories: Climate Science News

Water Action Day at COP23 : Niger Basin Authority (NBA) collects & disseminates satellite data

Wed, 2017-11-15 02:46
The Niger basin (4.200 km) encompasses 2,2 billions km² with very active phenomena, over nine countries (Benin, Burkina Faso, Cameroun, Ivory Coast, Guinea, Mali, Niger, Nigeria and Chad). An authority to manage the basin was created The region has currently major security problems, leading to difficulties to maintain an in situ network. Satellites thus complement the existing network, and the Niger Basin Authority (NBA) is now disseminating satellite data over the basin. The next step will be to also use altimetry, including SWOT in the future. see http://sath.abn.ne/
Categories: Climate Science News

World Scientists’ Warning to Humanity: A Second Notice

Tue, 2017-11-14 07:14
It is a solemn alert that more than 15 000 scientists from 184 countries published Monday, November 13 in the journal BioScience. Read the article
Categories: Climate Science News

COP23 - Statement on the state of the global climate by the World Meteorological Organization Secretary General

Mon, 2017-11-13 03:32
The Statement was posted on the WMO website with a press release
Categories: Climate Science News

October 23 - November 4, 2017 weeks

Thu, 2017-11-09 07:00
Les atolls du Pacifique résistent à la montée des eaux (Sciences et Avenir, 2017/11/03) Les forêts, poumons de la lutte mondiale contre le réchauffement climatique (Le monde, 2017/11/02) Réchauffement climatique : la bataille des 2 °C est presque perdue (Le monde, 2017/10/31) L’océan, nourrice des lagons (IRD, 2017/10/27) Sciences : l’océan Atlantique est 15 cm plus haut que la Méditerranée (Sud Ouest, 2017/10/27) Paléoclimats des 100 derniers millions d’années : l’océan n’était pas si chaud ! (INSU, 2017/10/26) Réchauffement climatique: «En 2100, la plupart des glaciers auront disparu», selon les scientifiques (20 minutes, 2017/10/23) 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

Dissemination of incorrect Jason-2 IGDR products (cycles 505-506)

Thu, 2017-10-26 07:26

Due to a wrong processing configuration, Jason-2 IGDR cycles 505 and 506 are incorrect (datation bias of over 2ms).

These products have been deleted from avisoftp.cnes.fr server and must be discarded.

They will be reprocessed as soon as possible.

We apologize for the inconvenience

Categories: Climate Science News

15-21 October, 2017 week

Thu, 2017-10-26 02:07
Un satellite franco-chinois pour comprendre les changements climatiques (France Inter, 2017/10/22) Un jeune inventeur néerlandais prévoit de nettoyer les océans des déchets plastique (Le Monde, 2017/10/20) Les poissons-clowns subissent eux-aussi le réchauffement climatique ! (Science Post, 2017/10/19) Exposition planète mer à Toulouse : un voyage au fond des océans pour comprendre le climat (France3, 2017/10/18) Réchauffement climatique: les eaux côtières du Groenland moins salées (Québec Science, 2017/10/17) 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

8-14 October, 2017 week

Thu, 2017-10-19 06:37
Antarctique : des milliers de poussins de manchots sont morts de faim à cause d'une banquise trop étendue (France Info, 2017/10/13) Satellites spy Antarctic 'upside-down ice canyon' (BBC, 2017/10/11) Le changement climatique vu de l’espace (Theconversation, 2017/10/10) Un pompage du CO2 atmosphérique jusqu’à de grandes profondeurs océaniques (INSU, 2017/10/09) Le dégel du permafrost, l’autre menace climatique qui inquiète les chercheurs (Le Monde, 2017/10/09) 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

October 2017: Plate tectonics measured by Doris

Mon, 2017-10-16 01:40
Doris has been monitoring plate tectonics motion since 1990; The system is part of the ITRF, and...
Categories: Climate Science News

2-8 October 2017 week

Thu, 2017-10-12 06:25
An eye on ocean currents with Sentinel-3 Video (ESA, 2017/10) Climat: retour probable de « La Niña » (Le Figaro, 2017/10/06) L'impact des El Niño extrêmes sur le transport sédimentaire dans les Andes péruviennes occidentales (INSU, 2017/10/05) Éruptions volcaniques, mousson africaine, El Niño : les processus physiques identifiés (INSU, 2017/10/03) 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

24-30 September, 2017 week

Thu, 2017-10-05 05:44
Sans respect des océans, point de salut climatique (Ouest France, 2017/09/27) Antarctique : un immense iceberg grand comme 2 fois et demi Paris se détache  (Science Post, 2017/09/26) Pourquoi certaines espèces s’adaptent au changement climatique et d’autres non (Le Monde, 2017/09/25) 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] : Resuming the mission

Wed, 2017-10-04 06:29
Jason-2 will soon be in a favorable period for restart, and the planning for mission resuming has been defined.  All instruments should be restarted on Friday, October 13th, during a pass at 05:41UTC. Data production should restart right after the pass. A drag make-up maneuver will also be performed on the same day, at 02:01UTC. As this maneuver will be performed more than 1 orbit before instruments restart, it will have no impact on products. Christophe Marechal, CNES Jason 2 project manager on behalf of Jason-2 project managers from NOAA, EUMETSAT and JPL.
Categories: Climate Science News

18-24 september, 2017 week

Thu, 2017-09-28 05:25
Réchauffement climatique : des lacs de CO2 emprisonnés au fin fond des océans pourraient sauver la planète ! (Science Post, 2017/09/23)
Question de la semaine : le réchauffement climatique influe-t-il sur les cyclones ? (Sciences Avenir, 2017/09/22)
Pour sauver les océans des déchets plastiques, devenez citoyens des îles Poubelles (Le Monde, 2017/09/19)
Limiter le réchauffement climatique à +1,5°C est encore possible, si... (L’Express, 2017/09/19)
Réchauffement climatique : la fonte des glaciers s'accélère de manière inquiétante dans les Alpes (LCI, 2017/09/17)
La disponibilité des articles en ligne varie selon les journaux. Nous ne pouvons donc garantir que les articles mentionnés ci-dessus soient accessibles de façon permanente.
Categories: Climate Science News

Temporary unavailability of the CNES ftp server on October 3, 2017

Wed, 2017-09-27 00:00
For maintenance reason, the Cnes ftp server (ftp://avisoftp.cnes.fr) will be unavailable on October...
Categories: Climate Science News

[JASON-2] : Satellite will be restarted on october 12th

Tue, 2017-09-26 02:30
Jason-2 will be restarted as soon as the next favorable timeframe for gyrometers will begin, i.e. from October 12th. Instruments themselves should be restarted on Oct. 12th or 13th.   
Categories: Climate Science News

11-17 September 2017 week

Thu, 2017-09-21 07:03
Vers le début d'une période La Niña (Meteo Paris, 2017/09/16) Recul des glaciers des Alpes face au réchauffement climatique (Meteo Paris, 2017/09/15) Ouragans géants et réchauffement climatique : a-t-on encore besoin de preuves ? (Sud Ouest, 2017/09/12) Climat: un réchauffement d'un degré peut bouleverser l'écosystème antarctique (Tahiti infos, 2017/08/31 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 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