File:Larsen crack ESA372459.gif
Original file (1,253 × 1,252 pixels, file size: 23.05 MB, MIME type: image/gif, looped, 20 frames, 21 s)
Captions
Summary[edit]
DescriptionLarsen crack ESA372459.gif |
English: A crack in the Larsen-C ice shelf in on the Antarctic Peninsula first appeared several years ago, but recently it has been lengthening faster than before. Carrying radar that can ‘see’ through the dark, the Copernicus Sentinel-1 satellites are monitoring the situation. The animation shows that the fissure has opened around 60 km since January last year. And, since the beginning of this January it has split a further 20 km so that the 350 m-thick shelf is held only by a thread. The crack now extends around 175 km.
When the ice shelf calves this iceberg it will be one of the largest ever recorded – but exactly how long this will take is difficult to predict. The neighbouring Larsen-A and Larsen-B ice shelves suffered a similar fate with dramatic calving events in 1995 and 2002, respectively. Theseice shelves are important because they act as buttresses, holding back the ice that flows towards the sea. The Sentinel-1 two-satellite constellation is indispensable for discovering and monitoring events like these because it continues to deliver radar images when Antarctica is shrouded in darkness for several months of the year. |
Date | |
Source | http://www.esa.int/spaceinimages/Images/2017/01/Larsen_crack |
Author | European Space Agency |
Permission (Reusing this file) |
contains modified Copernicus Sentinel data (2016–17), processed by ESA,CC BY-SA 3.0 IGO |
Title InfoField | Larsen crack |
Mission InfoField | Sentinel-1 |
Activity InfoField | Observing the Earth |
Licensing[edit]
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 00:52, 7 May 2017 | 1,253 × 1,252 (23.05 MB) | Fæ (talk | contribs) | == {{int:filedesc}} == {{information | description = {{en|1=A crack in the Larsen-C ice shelf in on the Antarctic Peninsula first appeared several years ago, but recently it has been lengthening faster than before. Carrying radar that can ‘see’ thr... |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Unique ID of original document | xmp.did:e7765043-bd5c-7646-8743-4fa131be2c68 |
---|---|
Software used | Adobe Photoshop CC 2017 (Windows) |