File:Earth from Space- Blooms in the Gulf of Finland ESA25081359.png
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Summary
[edit]DescriptionEarth from Space- Blooms in the Gulf of Finland ESA25081359.png |
English: This Copernicus Sentinel-2 image features swirls of vivid, emerald green algal blooms in the Gulf of Finland. Zoom in to explore this image at its full 10 m resolution or click on the circles to learn more. The Gulf of Finland is the easternmost arm of the Baltic Sea. The area pictured shows the western part of the Gulf. Helsinki, Finland’s capital and most populous city, is visible in light brown on the coast in the top left corner of the image. The image also captures the Estonian coast at the bottom, with Tallin covered by cloud. Every summer, swathes of algae bloom in the Baltic Sea. The blooms usually appear as green threads, as shown in this image, which is from 13 July 2023. Streaks, eddies and swirls, mixed by winds and currents, are clearly visible. An algal bloom describes the rapid growth of phytoplankton – microscopic marine plants that drift on or near the sea surface. While individually microscopic, the chlorophyll they use for photosynthesis collectively tints the ocean waters, which allows them to be measured by satellites orbiting Earth. These organisms are essential to life in the sea – they form the base of the marine food chain. Importantly, they also play a huge role in the removal of carbon dioxide from the atmosphere and the production of oxygen. However, some phytoplankton and marine algae can be harmful to marine life and to humans. They can produce toxic substances, blooms can occur too often or last too long, depleting the concentration of oxygen in the water. High water temperatures, slow circulation and excessive nutrients released into the ocean often lead to a rapid increase in the number of algae, and consequently large blooms, which can pose a threat to the natural ecosystem and also aquaculture and tourism. With its 13 spectral channels, Copernicus Sentinel-2’s imager can be used to detect algal blooms and measure aspects that define water quality, such as surface concentration of chlorophyll. Satellite data can be used to track the growth and spread of blooms and can help develop early warning systems to mitigate the impact on tourism and fishing industries. |
Date | 15 September 2023 (upload date) |
Source | Earth from Space: Blooms in the Gulf of Finland |
Author | European Space Agency |
Other versions |
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Activity InfoField | Observing the Earth |
Mission InfoField | Sentinel-2 |
Set InfoField | Earth from Space image collection |
System InfoField | Copernicus |
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 2023
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. |
Attribution
This media was created by the European Space Agency (ESA).
Where expressly so stated, images or videos are covered by the Creative Commons Attribution-ShareAlike 3.0 IGO (CC BY-SA 3.0 IGO) licence, ESA being an Intergovernmental Organisation (IGO), as defined by the CC BY-SA 3.0 IGO licence. The user is allowed under the terms and conditions of the CC BY-SA 3.0 IGO license to Reproduce, Distribute and Publicly Perform the ESA images and videos released under CC BY-SA 3.0 IGO licence and the Adaptations thereof, without further explicit permission being necessary, for as long as the user complies with the conditions and restrictions set forth in the CC BY-SA 3.0 IGO licence, these including that:
See the ESA Creative Commons copyright notice for complete information, and this article for additional details.
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This file is licensed under the Creative Commons Attribution-ShareAlike 3.0 IGO license. Attribution: ESA, CC BY-SA IGO 3.0
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current | 11:49, 29 October 2023 | 2,000 × 1,758 (2.14 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2023/09/earth_from_space_blooms_in_the_gulf_of_finland/25081348-1-eng-GB/Earth_from_Space_Blooms_in_the_Gulf_of_Finland.png via Commons:Spacemedia |
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