File:Ice-free coastal area, Chukchi Sea, Alaska.jpg
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Summary
editDescriptionIce-free coastal area, Chukchi Sea, Alaska.jpg |
English: Following the trend that developed in September and October 2020, the Sea Surface Temperature measured in the Northern Bering and Southern Chukchi seas remained above normal in November. The NOAA Earth System Research Laboratories high resolution data shows an anomaly of up to 3.5°C compared to normal conditions. This anomaly can be both a cause and an effect of the alarming lack of sea ice at this point of the season. Sea ice has an important influence on Earth systems and on the polar environment, influencing oceanic circulation, weather, and regional climate. But the influence of sea ice on the Earth is not just regional, it is global. The ice’s white surface reflects far more sunlight back to space than free ocean water. The more the ice melts and exposes more open water, the more sunlight is absorbed rather than reflected. The sun-warmed water then causes more ice to melt. Over several years, this positive feedback cycle (known as the ice-albedo feedback) can influence the global climate. This image acquired on 23 October 2020 by one of the two satellites of the Copernicus Sentinel-2 mission shows a ice-free coastal area in the Chukchi Sea, in the Arctic Region of western Alaska. The Copernicus Sentinel-2 mission, which is composed of two twin satellites (Sentinel-2A and Sentinel-2B), provides multispectral data from 13 different bands with a maximum spatial resolution of 10 metres, provides invaluable support for monitoring the impact of Climate Change on Arctic sea ice extent. |
Date | Taken on 23 October 2020 |
Source | Ice-free coastal area, Chukchi Sea, Alaska |
Author | European Union , Copernicus Sentinel-2 imagery |
Licensing
editThis 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
Attribution
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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current | 13:51, 24 August 2023 | 3,507 × 2,480 (2.37 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://www.copernicus.eu/system/files/2020-12/image_day/ChukchiSea.jpg via Commons:Spacemedia |
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