File:Halloween crack ESA385871.tiff
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Captions
Captions
Summary
[edit]| Description |
English: In this image from the Copernicus Sentinel-1 satellite mission, we can see the location of the ‘Halloween crack’ on Antarctica’s Brunt Ice Shelf, highlighted in red. The former and current locations of the British Antarctic Survey’s Halley research stations are also marked.
Discovered on 31 October 2016, the swiftly lengthening Halloween crack prompted the temporary withdrawal of staff from the Halley VI research station for the duration of the 2017 Antarctic winter.Information from the Copernicus Sentinel-1 and Sentinel-2 satellites helped in making this decision. The base had already been moved 23 km inland during last Antarctica’s summer months because another ice chasm (highlighted in red) had begun to show signs of growth. In this image, Sentinel-1’s radar was also able to pick up lines in the snow and ice marking the researchers’ routes from the former location of the Halley VI station to the coast and to the Halloween crack. To help us identify them, these lines have been coloured in black. This image was created by combining three Sentinel-1 radar scans in September and October. The colours in the Weddell Sea indicate changes in sea ice between the acquisitions. A ‘polynya’ – an area of open water surrounded by ice – is visible in the lower-central part of the image. |
| Date | |
| Source | http://www.esa.int/spaceinimages/Images/2017/10/Halloween_crack |
| Author | European Space Agency |
| Permission (Reusing this file) |
contains modified Copernicus Sentinel data (2017), processed by ESA,CC BY-SA 3.0 IGO |
| Other versions |
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| Title | Halloween crack |
| Location | Antarctic |
| Keywords | Ice; Ice and snow |
| Mission | Sentinel-1 |
| Activity | Observing the Earth |
Licensing
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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 {{{year}}}
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. |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:55, 31 October 2017 |  | 3,457 × 2,794 (27.66 MB) | Fæ (talk | contribs) | European Space Agency, Id 385871, http://www.esa.int/spaceinimages/Images/2017/10/Halloween_crack, User:Fæ/Project_list/ESA |
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