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Programme européen Copernicus (ex GMES). Satellites Sentinel

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Laurent Simon
Whisky Quebec

Une nouvelle image, spectaculaire, de l'espace, grâce à Sentinel 2A (Copernicus)

Message par Laurent Simon le Ven 18 Sep 2015 - 16:21

Une nouvelle image, spectaculaire, de l'espace, grâce à Sentinel 2A (Copernicus) : un lac salé en Australie.

http://phys.org/news/2015-09-image-australian-captured-copernicus-sentinel.html


Laurent Simon
Whisky Quebec

Re: Programme européen Copernicus (ex GMES). Satellites Sentinel

Message par Laurent Simon le Ven 18 Sep 2015 - 16:27

Laurent Simon a écrit:Le satellite Sentinel 1 A montre très vite son utilité
par comparaison de deux prises de vue mi août 2015

Greenland Glacier Loses Huge Chunk of Ice

http://www.zmescience.com/science/oceanography/greenland-glacier-jakobshavn-24082015/

Scientists have reported the break of a huge part of Jakobshavn Glacier, one of the largest ones in Greenland. A chunk of it roughly the size of Manhattan broke some time between August 13 and August 19.
Pour compléter ce message,
avec des photos :

https://www.satnews.com/story.php?number=1439176891





La perte de l'énorme iceberg :

http://theweatherspace.com/2015/08/28/123406-greenland-glacier-calves-massive-iceberg/


Laurent Simon
Whisky Quebec

Sentinel 2A : superbe photo de dunes de sable en Lybie.

Message par Laurent Simon le Ven 18 Sep 2015 - 16:36


Laurent Simon
Whisky Quebec

Re: Programme européen Copernicus (ex GMES). Satellites Sentinel

Message par Laurent Simon le Ven 18 Sep 2015 - 16:42


Poncho (Admin)
Whisky Charlie

Re: Programme européen Copernicus (ex GMES). Satellites Sentinel

Message par Poncho (Admin) le Ven 18 Sep 2015 - 22:25

Merci
Sur la dernière on devine la résolution de ces photos. Le bateau est un petit bateau de plaisance ?


_________________
@avia.poncho

Laurent Simon
Whisky Quebec

Re: Programme européen Copernicus (ex GMES). Satellites Sentinel

Message par Laurent Simon le Ven 13 Nov 2015 - 19:51

Comment l'ESA va gérer le défi lié au torrent de données créé par le(s) satellite(s) Sentinel 2
(programme UE-ESA Copernicus, ex GMES)

  Europe's eyes in space: How ESA's Sentinel-2 satellite scans pose petabyte challenge

http://www.zdnet.com/article/europes-eyes-in-space-how-esas-sentinel-2-satellite-scans-pose-petabyte-challenge/

Début de l'article
"By next year the Sentinel-2 mission will be capable of obtaining complete coverage of the Earth's land surface every five days. That potentially represents a huge amount of data for the European Space Agency to handle.

When the European Space Agency's Sentinel-2B satellite joins its 2A twin in orbit next year, the project's volume of data in the form of images of the Earth's surface will soar to up to two petabytes annually.

To cope with that data growth, ESA has just expanded the 2013 contract it awarded Spanish company Indra to take it up to 2020 and to include data management for the twin satellites.
Robust long-term global records of essential climate variables, such as greenhouse gas concentrations, sea-ice extent and thickness, and sea-surface temperature and salinity, are crucial to understanding and mitigating the consequences of climate change.

Europe's eyes in space focused on Earth are provided by the Copernicus program, headed by the European Commission in partnership with ESA, which coordinates the delivery of data from upwards of 30 satellites. Among them are the Sentinels, which provide a unique set of observations that need to be processed and archived.

ESA's initial 2013 contract with Indra used the company's facilities at San Fernando de Henares, 15km from Madrid, as one of the main data-processing and archiving centers, or PACs, for the Sentinel-2A satellite mission's ground segment."

Laurent Simon
Whisky Quebec

Re: Programme européen Copernicus (ex GMES). Satellites Sentinel

Message par Laurent Simon le Mer 18 Nov 2015 - 22:33

Article d'il y a près d'un mois :

Europe Grants U.S. Special Access to Copernicus Earth-observation Data

  http://spacenews.com/europe-grants-u-s-special-access-to-copernicus-earth-observation-data/

Accord entre les E.U. et l'UE selon lequel les agences US auront libre accès aux données obtenues par les satellites Sentinel du programme européen Copernicus.

Comme retour au libre accès à Landsat, que les autorités US nous avait accordé.

The European Commission and the U.S. government have reached an agreement under which U.S. agencies will have free access to Europe’s Copernicus environment-monitoring satellite constellation -

Laurent Simon
Whisky Quebec

le satellite Sentinel 3A se prépare au lancement, en décembre 2015

Message par Laurent Simon le Mer 18 Nov 2015 - 22:40

Copernicus : le satellite Sentinel 3A se prépare au lancement

http://www.futura-sciences.com/magazines/espace/infos/actu/d/copernicus-copernicus-satellite-sentinel-3a-prepare-lancement-60178/

Extraits :
"En décembre, Sentinel 3A sera le troisième satellite du programme européen Copernicus à être mis en orbite.

Il a pour objectif l’observation en permanence des océans et des surfaces terrestres par optique multispectrale, infrarouge et altimétrie.

Sa construction a dû tenir compte d’un certain nombre de contraintes techniques et opérationnelles en raison des objectifs scientifiques de la mission."

"Après les lancements de Sentinel 1A (avril 2014) et Sentinel 2A (juin 2015), se prépare celui de Sentinel 3A. Le satellite sera lancé le 10 décembre par un lanceur russe, Rockot, depuis le cosmodrome de Plessetsk.

Initialement, il devait être lancé par Vega, mais les premiers lancements de ce lanceur étaient déjà réservés par d'autres missions. Sentinel 3B sera quant à lui bien lancé par Vega.

Sentinel 3 fait partie d'une mission d’observation de la surface des océans et des terres émergées au moyen d'instruments optiques à moyenne résolution fonctionnant dans le visible (couleur), le proche infrarouge et l'infrarouge lointain (température), mais aussi d’instruments radars fonctionnant par tout temps et permettant notamment de déterminer les hauteurs des océans et des grands lacs.

Le satellite embarque quatre instruments principaux et un ensemble d'outils de navigation :

  • les instruments OLCI (Ocean and Land Color Instrument) et SLSTR (Sea and Land Surface Temperature Radiometer) pour la partie optique de la mission ;
  • deux instruments micro-ondes qui forment la charge utile topographique : l'altimètre radar SRAL (Sar Radar Altimeter) complété d’un radiomètre (MWR).

"

Laurent Simon
Whisky Quebec

Re: Programme européen Copernicus (ex GMES). Satellites Sentinel

Message par Laurent Simon le Lun 7 Déc 2015 - 15:29

Une image créée à partir des données Copernicus Sentinel 1A

Image: Dutch mosaic from Copernicus Sentinel data


Laurent Simon
Whisky Quebec

Re: Programme européen Copernicus (ex GMES). Satellites Sentinel

Message par Laurent Simon le Sam 19 Déc 2015 - 14:11

T.A.S. va construire les satellites Sentinel 1-C et D, du programme Copernicus.

http://www.telesatellite.com/actu/46409-thales-alenia-space-va-construire-les-satellites-sentinel-1c-et-de-copernicus.html
Thales Alenia Space va construire les sac plastiques Sentinel-1C et D de Copernicus
Thales Alenia Space va construire les sac plastiques Sentinel-1C et D de Copernicus
Thales Alenia Space va construire les sac plastiques Sentinel-1C et D de Copernicusvvv

Laurent Simon
Whisky Quebec

Re: Programme européen Copernicus (ex GMES). Satellites Sentinel

Message par Laurent Simon le Mer 15 Juin 2016 - 14:17

Copernicus Atmosphere Monitoring Service (CAMS) Announces a Major Improvement on Atmosphere Data Accessibility

http://www.prnewswire.com/news-releases/copernicus-atmosphere-monitoring-service-cams-announces-a-major-improvement-on-atmosphere-data-accessibility-582887411.html



"At the first CAMS summit in Athens on 14-16 June, ECMWF, in charge of CAMS on behalf of the European Commission, will launch a radically new interactive and ready to use version of its online platform of atmosphere data. Policy makers, scientific and business communities or citizens will benefit from an enhanced free-to-access array of customisable and "live" maps and charts in just a few clicks.

Some of today's most important environmental concerns relate to the composition of the atmosphere. The increasing concentration of the greenhouse gases and the cooling effect of aerosol are prominent drivers of a changing climate, but the extent of their impact is often still uncertain.
Air quality is also one of the major concerns throughout the world, affecting human health and life expectancy, the health of ecosystems and the fabric of the built environment.

The European Union's Copernicus Earth Observation programme uses and contributes to a worldwide network of thousands of sensors on land, in our oceans, and in the air, as well as a network of over 50 satellites providing millions of environmental readings every day.

To address these environmental concerns there is a need for data and processed information that is easily accessible.
That means, not only free of charge, but ready to use and designed to match users' needs.

Instant online design "à la carte" 
To see the video presentation of the new CAMS online platform: https://youtu.be/r-nhoTxkR8U 

The new CAMS interface provides dynamic visualisations without the need to download data into specialist tools or software, giving users access to maps, charts, animations and local time series based on information about atmospheric chemistry as generated by the Copernicus programme.

The Catalogue component provides the basis for users to easily find the many products, be it data, maps or documents. It includes an intuitive search system, improved filtering and clear display of the resulting information.

The new catalogue marks an important step in broadening access to the wealth of CAMS data as part of Copernicus's mission, supporting society to understand and adapt to our changing environment through world-leading science and technology

Examples of maps that will be displayed:

  1. Global surface forecasts e.g. forecasts for levels and movement of carbon monoxide, sulphur dioxide, ozone, nitrogen dioxide and formaldehyde in the surface layer (the air that we breathe)
    http://atmosphere.copernicus.eu/maps/global-surface-forecasts
  2. Global total column forecasts e.g. Forecasts for total levels and movement of carbon monoxide, sulphur dioxide, ozone, nitrogen dioxide and formaldehyde in all levels of the earth's atmosphere
    http://atmosphere.copernicus.eu/maps/global-total-column-forecasts
  3. Aerosol forecasts e.g. airborne pollutants such as those caused by dust storms
    http://atmosphere.copernicus.eu/maps/aerosol-forecasts
  4. Fire emissions e.g. emissions from biomass burning and wildfires
    http://atmosphere.copernicus.eu/maps/fire-activity


New functionalities will include:

  • Global or regional views
  • Panning
  • Zoom
  • Fullscreen view
  • Social media sharing
  • Animated forecasts
  • On-the-fly data layer selection
  • Point-and-click chart generation from the maps

...


Press Pictures 
All pictures can be used with reference to ECMWF Copernicus and are downloadable here: http://atmosphere.copernicus.eu/news-and-media/press-room/press-resources/press-photos







Graphic 2: Audience can use data without specialists' tools. They can use the interface to pan, zoom and make point & click investigations. In addition, they can play time animation series to understand data evolution (ECMWF Copernicus).


Graphic 3: The new user interface of the CAMS Catalogue compared to its precursor with an improved user experience: Easier to understand the data content at-a-glance and increased functionalities (ECMWF Copernicus).

Laurent Simon
Whisky Quebec

Face aux inondations, les capacités "anti crises" de Copernicus ont été activées en juin

Message par Laurent Simon le Ven 17 Juin 2016 - 18:08

Copernicus ou quand l’imagerie satellite permet d’aider à la gestion des catastrophes naturelles

http://fr.euronews.com/2016/06/03/copernicus-ou-quand-l-imagerie-satellite-permet-d-aider-a-la-gestion-des/

Pour aider la France et l’Allemagne à faire face aux inondations, le Service de gestion des situations d’urgence Copernicus a été activé. Géré conjointement par l’Agence Spatiale européenne et la Commission européenne, il utilise l’imagerie par satellite pour aider les secours à agir vite là où il le faut.
Par rapport aux images aériennes ou celles prises par les drones, les images satellites présentent l’avantage de couvrir des zones beaucoup plus importantes, explique Stéphanie Battiston.

En France, nous pouvons couvrir le bassin de la rivière Le Loing dans son ensemble. Et lorsqu’il faut surveiller la situation sur plusieurs jours, nous pouvons voir l’ensemble du bassin d’un seul coup chaque jour.”

Stéphanie Battiston est l’une des responsables du Sertit, la structure qui traite les données du système Copernicus pour les rendre lisibles par les services d’intervention.
“Nous fournissons des cartes chaque jour en fonction des demandes des utilisateurs, ajoute-t-elle. Cela leur permet non seulement de dimensionner les équipes de secours nécessaires sur le terrain mais aussi de savoir où les envoyer précisément en priorité.”
Ce système est utilisé pour les catastrophes naturelles mais aussi celles d’origine humaine comme les marées noires, ainsi que dans la gestion des crises humanitaires.

Laurent Simon
Whisky Quebec

Re: Programme européen Copernicus (ex GMES). Satellites Sentinel

Message par Laurent Simon le Mer 20 Juil 2016 - 18:48

un article qui date d'un an, mais qui reste intéressant.

http://optics.org/news/6/6/48

le début de l'article :
Sentinel satellite returns 'game-changing' multispectral imagery
30 Jun 2015
Sofradir and e2v sensors helping to take remote land monitoring to unprecedented levels, says the European Space Agency.
Po Valley: the SWIR view
High-resolution multispectral images captured by the optical sensors on board the Sentinel-2A satellite launched last week are already being beamed back to Earth – yielding views with unprecedented spectral detail and resolution.
The European Space Agency (ESA) payload, one of several that will eventually make up the “Copernicus” constellation, covers 13 discrete bands across the visible and near-infrared spectral regions and combines that with a 290 km swath width and a ground resolution of 10 meters per pixel.
Sentinel-2A’s first image acquisition captured a view extending from Sweden to Algeria, through a large chunk of central Europe. It included a close-up the Po Valley in Italy, processed through the satellite’s high-resolution infrared channel. The French company Sofradir provided 12 infrared sensors for Sentinel-2A.

Laurent Simon
Whisky Quebec

Re: Programme européen Copernicus (ex GMES). Satellites Sentinel

Message par Laurent Simon le Sam 30 Juil 2016 - 13:38

Les nouveaux moyens, européens, avec Cryosat et Sentinel 3, permettent de faire des mesures beaucoup plus précises du niveau de la mer

(ce qui est très important, à la fois pour mieux comprendre le fonctionnement de la planète, le dérèglement climatique et pour mieux appréhender les catastrophes naturelles et en atténuer les conséquences pour l'humanité),

en particulier près des côtes, comme en Norvège.

CryoSat sets new standard for measuring sea levels

http://phys.org/news/2016-07-cryosat-standard-sea.html
  


The rugged coastal landscape of Stavanger in southwest Norway, with its distinctive rocks and hills was captured by the Sentinel-2A satellite on 15 March 2016. Credit: Contains modified Copernicus Sentinel data (2016), processed by ESA

Laurent Simon
Whisky Quebec

Re: Programme européen Copernicus (ex GMES). Satellites Sentinel

Message par Laurent Simon le Sam 30 Juil 2016 - 14:39

En prolongement du post sur 'La politique spatiale européenne (UE, ESA), la dimension européenne de l'espace. '

d'autres extraits du même article :
Europe's workhorse Sentinel ready for action

http://phys.org/news/2016-07-europe-workhorse-sentinel-ready-action.html

"Hilary Wilson, Eumetsat's Sentinel-3 project manager, added, "After this intense five-month period we are looking forward to taking over the routine operations of the satellite from ESA and moving into what will hopefully be more than a decade of smooth operations bringing these important data to users worldwide.
"Working together with ESA, we are proud to have achieved this important milestone."


Baltic swirls. Credit: Contains modified Copernicus Sentinel data (2016)/HZG

The data have already been put through a reality check.
As part of the commissioning phase, ESA and Eumetsat engaged with users, who have provided feedback on these sample data products.


Susanne Mecklenburg, ESA's Sentinel-3 mission manager, said,
"It is very exciting to see the first data already being looked at by the operational and scientific community – the people who asked for the continuity of such measurements and defined their requirements in the first place.


"After only five months of commissioning, we have already released samples for most types of data products. The coming months will see a gradual ramp-up of our processing and data dissemination activities to make sure that the user community is served in the best possible way.

"The intention is to release first operationally qualified data products to all users in September."

The full mission comprises two satellites flying in a constellation to meet the demanding coverage and revisit needs of the Copernicus Services.

So while Sentinel-3A is well on the road to start delivering data that is expected to make unique contribution to the paradigm shift in monitoring our planet,
ESA remains busy preparing its identical twin for launch in 2017
.
"

Laurent Simon
Whisky Quebec

Re: Programme européen Copernicus (ex GMES). Satellites Sentinel

Message par Laurent Simon le Mer 31 Aoû 2016 - 17:59

Sentinel-1 provides new insight into Italy's earthquake


http://www.spacedaily.com/reports/Sentinel_1_provides_new_insight_into_Italys_earthquake_999.html





Scientists from Italy's National Institute for Geophysics and Volcanism combined Sentinel-1 radar acquisitions over central Italy from before and after the 24 August earthquake to calculate the location, geometry and amount of slip on the source fault. The slip is distributed mainly in two patches of about 1 m. The aftershock seismicity (black dots) is clearly surrounding these patches, releasing the remaining stress along the fault. The red star is the main shock. Green stars indicate the highest aftershocks of the sequence (M > 4.3). Image courtesy Copernicus Sentinel data (2016)/ESA/INGV. For a larger version of this image please go here.

Laurent Simon
Whisky Quebec

Re: Programme européen Copernicus (ex GMES). Satellites Sentinel

Message par Laurent Simon le Mer 31 Aoû 2016 - 18:01

Sentinel 1: un satellite aiuta a studiare il terremoto

http://www.focus.it/scienza/scienze/come-sentinel-1-aiuta-a-vedere-e-studiare-il-terremoto


Il satellite dell'Esa ha documentato dallo spazio lo sprofondamento e lo spostamento del terreno lungo la faglia, nelle zone del terremoto del Centro Italia.

Mappa rilasciata il 29 agosto: i ricercatori dell'Istituto per il rilevamento Elettromagnetico dell'Ambiente hanno combinati dati radar di Sentinel-1 rilevati prima e dopo l'evento del 24 agosto, in particolare il 15, il 21 e il 27 agosto. Lo studio evidenzia uno sprofondamento (subsidenza) di circa 20 cm nell'area di Accumoli (Rieti) e scostamenti laterali fino a 16 cm. Le linee blu seguono il tracciato della faglia

Poncho (Admin)
Whisky Charlie

Re: Programme européen Copernicus (ex GMES). Satellites Sentinel

Message par Poncho (Admin) le Jeu 1 Sep 2016 - 11:45



_________________
@avia.poncho

Laurent Simon
Whisky Quebec

Re: Programme européen Copernicus (ex GMES). Satellites Sentinel

Message par Laurent Simon le Ven 18 Nov 2016 - 20:18

A propos des satellites Sentinel (programme Copernicus), dont le prochain à être mis sur orbite est le jjumeau de Sentinel 1A (lancé le 23 juin 2015), sera lancé dans quelques mois, par Vega :

http://www.spaceflightinsider.com/organizations/esa/esas-sentinel-2b-spacecraft-steps-spotlight/

image: http://www.spaceflightinsider.com/wp-content/uploads/2016/11/8495-esa_soyuz_sentinel_2-jacques_van_oene.jpg

ESA held a tour of the new Sentinel 2B spacecraft on Tuesday, Nov. 15. The spacecraft is being prepared for a March 2017 launch atop a Vega booster from Kourou, French Guiana. Photo Credit: Jacques van Oene / SpaceFlight Insider


"The European Space Agency (ESA) provided a glimpse of the Sentinel-2B satellite that is set to launch atop a Vega rocket from Kourou, French Guiana, during a media event held on Tuesday, Nov. 15. The spacecraft’s review helped set the stage for its flight, which is currently set for this spring


... When it is deployed, Sentinel-2B will fly 180° opposite Sentinel-2A, with both spacecraft occupying Sun-synchronous orbits at an altitude of approximately 488 miles (786 km) and covering Earth’s land surfaces, large islands, inland and coastal waters between 84°N and 56°S every five days.

Both satellites have an operational design lifetime of 7.5 years with consumable propellants aboard for up to 12 years. They will provide high-resolution Earth observation services for ESA and provide data continuity for information that had been previously provided by SPOT-5 and Landsat 7.

Sentinel-2B is 11.2 feet (3.4 m) long, 5.9 feet (1.8 m) wide, and 7.7 feet (2.35 m) tall. The spacecraft has a gross mass of 2,513 pounds (1,140 kg), which includes 273 pounds (123 kg) of propellant. It will launch aboard a European Vega launch vehicle in March 2017.

Copernicus, I think it’s safe to say, is the world’s best program for environmental monitoring, there’s nothing comparable in any other part of the world,” Aschbacher
(ESA’s Director of Earth Observation Programmes) said.

Contenu sponsorisé

Re: Programme européen Copernicus (ex GMES). Satellites Sentinel

Message par Contenu sponsorisé Aujourd'hui à 11:46


    La date/heure actuelle est Sam 10 Déc 2016 - 11:46