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Canada’s_Milne_Ice_Shelf_Collapses_(NESDIS_2020-08-12_milneberg).gif (448 × 534 pixels, taille du fichier : 2,84 Mio, type MIME : image/gif, en boucle, 17 trames, 3,4 s)
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Description
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English: Canada’s last fully intact ice shelf , it was estimated to have shrunk the remaining mass by 43 percent, losing more than 30 square miles of land area, which is bigger than the size of Manhattan.
Located in Canada’s largest and northernmost territory, Nunavut, the shelf is thought to have collapsed mostly because of above-normal temperatures for the region during July 2020, 9 degrees Fahrenheit warmer than the established 30-year average. The Canadian Ice Service (CIS) also added that “off-shore winds and open water in front of the ice shelf are all part of the recipe for ice shelf break-up.” The European Space Agency’s (ESA)Sentinel-1 satellite - part of their Copernicus Earth Observation program - captured imagery of the ice breakage using the onboard synthetic aperture radar (SAR) sensor to see through the area’s heavy cloud cover. . The data from Sentinel is made available to NOAA through a partnership with the European Commission’s Copernicus Programme. In addition to detecting ice, the synthetic aperture radar (SAR) sensor on Sentinel-1 is used for measuring surface winds and detecting oil spills. |
| Date | 12 août 2020 (date de téléversement) |
| Source | Canada’s Milne Ice Shelf Collapses |
| Auteur | NOAA |
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Conditions d’utilisation
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Cette image est dans le domaine public car son contenu provient de la
National Oceanic and Atmospheric Administration , réalisé par un employé dans le cadre de ses activités professionnelles.
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This image contains data from a satellite in the Copernicus Programme, such as Sentinel-1, Sentinel-2 or Sentinel-3. Attribution is required when using this image.
Attribution: Contains modified Copernicus Sentinel data 2020
The use of Copernicus Sentinel Data is regulated under EU law (Commission Delegated Regulation (EU) No 1159/2013 and Regulation (EU) No 377/2014). Relevant excerpts:
Free access shall be given to GMES dedicated data [...] made available through GMES dissemination platforms [...].
Access to GMES dedicated data [...] shall be given for the purpose of the following use in so far as it is lawful:
GMES dedicated data [...] may be used worldwide without limitations in time.
GMES dedicated data and GMES service information are provided to users without any express or implied warranty, including as regards quality and suitability for any purpose. |
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| Date et heure | Vignette | Dimensions | Utilisateur | Commentaire | |
|---|---|---|---|---|---|
| actuel | 3 juin 2024 à 19:54 | | 448 × 534 (2,84 Mio) | OptimusPrimeBot | #Spacemedia - Upload of https://www.nesdis.noaa.gov/s3/2021-06/milneberg.gif via Commons:Spacemedia |
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