File:Arctic microplastic pollution, Svalbard Archipelago.jpg
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Summary
[edit]DescriptionArctic microplastic pollution, Svalbard Archipelago.jpg |
English: Plastic particles are increasingly recognised as global contaminants as they have reached even the most remote areas of the planet, including the Arctic Ocean. A recent study that has been published in the Nature Communications scientific journal reveals that 92% of microplastic pollution found in sampled seawater across the Arctic is made of synthetic fibres. Of this, around 73 percent was found to be polyester, resembling the dimensions and chemical signature of synthetic textiles, particularly clothing. As stated by one of the authors of the study, there is strong evidence that homes in Europe and North America are directly polluting the Arctic with fibres from washing machines sewage. This SAR (Synthetic Aperture Radar) false colour image, that has been acquired by one of the two Sentinel-1 satellites on 13 January 2020, shows, mostly visible in white, two islands of the Svalbard Archipelago in Norway. The one on the left, not completely visible, is Spitsbergen, the largest island of the archipelago, while the one on the right is Nordaustlandet, the second largest. According to the results of the study, the seawater samples retrieved off the eastern Svalbard coast have some of the highest values of microplastic concentration among all the Arctic sites included in the research. RADAR data, as those provided by the Sentinel-1 mission, are not influenced by the presence of clouds, or by polar seasonal long nights. They are therefore particularly useful for monitoring Polar Regions when optical sensors cannot be used.
Français : Des microplastiques sont retrouvés partout, même dans des endroits très isolés comme ici dans l'océan Arctique. Une étude (dans la revue scientifique Nature) a montré qu'ici, que presque tous les microplastiques (92 %!) sont des fibres provenant de vêtements et textiles synthétiques, apportés par les eaux usées domestiques à partir de l'Europe et de l'Amérique du Nord, via le vent et les cours d'eau. L'image satellite montrent deux îles norvégiennes. Près de la plus grande île on a trouvé beaucoup de microplastiques. Une partie de ces fibres seront retrouvées dans les moules, poissons, et autres organismes marins, filtreurs notamment |
Date | Taken on 13 January 2020 |
Source | Arctic microplastic pollution, Svalbard Archipelago |
Author | European Union , Copernicus Sentinel-1 imagery |
Licensing
[edit]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
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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 | 11:23, 25 August 2023 | 3,508 × 2,480 (7.39 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://www.copernicus.eu/system/files/2021-01/image_day/SvalbardS1.jpg via Commons:Spacemedia |
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Height | 2,480 px |
Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 4 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CC 2019 (Windows) |
File change date and time | 02:00, 14 January 2021 |
Color space | Uncalibrated |
Date and time of digitizing | 02:44, 14 January 2021 |
Date metadata was last modified | 03:00, 14 January 2021 |
Unique ID of original document | xmp.did:45558e31-e7ed-b549-880e-646ce103c39c |