File:Lake George, Uganda ESA21819983.jpeg
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Summary
DescriptionLake George, Uganda ESA21819983.jpeg |
English: World Wetlands Day is celebrated internationally each year on 2 February. It marks the anniversary of the signing of the Convention on Wetlands of International Importance, known as the Ramsar Convention, in Ramsar, Iran, on 2 February 1971.
World Wetlands Day raises global awareness about the vital role of wetlands for our planet, paying particular attention to wetland biodiversity. This Copernicus Sentinel-2 image takes us over Lake George, in western Uganda. In 1988, Lake George was designated as Uganda’s first Ramsar site, given its importance as a centre for biological diversity. This equatorial lake covers an area of around 250 sq km and has an average depth of around 2.4 metres. Lake George is fed by a complex system of rivers and streams originating from the Rwenzori mountains – supplying a system of permanent swamps surrounding the lake. A dense fringe of wetland grass, visible in bright green, can be seen around the edges of the lake in the centre of the image. The wetlands provide a natural living space for a number of mammals including elephants, hippopotamus and antelope. They also provide a habitat for over 150 species of birds including several rare species such as the saddle-billed stork. Seen from above, the waters of Lake George appear green as a result of the thick concentration of blue-green algae. Metal pollution, mine seepage and agricultural runoff has caused serious pollution to the lake’s waters and are severely impacting the lake’s health. Lake George drains through the Kazinga Channel in the image’s centre. The wide, 32km long channel connects Lake George with Lake Edward, which lies on the border between Uganda and the Democratic Republic of the Congo. The Kazinga Channel flows through the Queen Elizabeth National Park. The almost 2000 sq km park is known for its wildlife including the African buffalo and the Nile crocodile. The park is also famous for its volcanic features, including volcanic cones and deep craters which can be seen dotted around the image. Many contain crater lakes, including the Katwe crater lake, whose salt deposits have been mined for centuries. Sentinel-2 is a two-satellite mission to supply the coverage and data delivery needed for Europe’s Copernicus programme. The mission’s frequent revisits over the same area and high spatial resolution allow changes in inland water bodies to be closely monitored. This image is also featured on the Earth from Space video programme. Français : Cette image, prise par un satellite Sentinel-2 du programme européen Copernicus, montre le Lac George, situé en Ouganda. En 1988, le Lac George fut le premier site d'Ouganda a être désigné comme site Ramsar, étant donné son importance pour la biodiversité. Une zone humide dense, composée d'herbes, peut être observée aux abords du lac, en vert vif au centre de l'image. Vues d'en haut, les eaux du Lac George apparaissent vertes à cause d'une forte concentration en cyanobactéries. La pollution due aux métaux, les infiltrations provenant des mines et les ruissellements venant des parcelles agricoles ont sévèrement détériorés la santé du lac. |
Date | 31 January 2020 (upload date) |
Source | Lake George, Uganda |
Author | European Space Agency |
Other versions |
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Activity InfoField | Observing the Earth |
Mission InfoField | Sentinel-2 |
Set InfoField | Earth observation image of the week |
System InfoField | Copernicus |
Camera location | 0° 00′ 08.03″ S, 30° 11′ 21.22″ E ![]() | View this and other nearby images on: OpenStreetMap | ![]() |
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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 2018
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
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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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Captions
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depicts
0°0'8.032"S, 30°11'21.221"E
image/jpeg
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 14:09, 6 June 2020 | ![]() | 7,451 × 7,253 (32.05 MB) | OptimusPrimeBot | #Spacemedia - Upload of https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/01/lake_george_uganda/21819973-3-eng-GB/Lake_George_Uganda.jpg via Commons:Spacemedia |
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Orientation | Normal |
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Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop 21.0 (Windows) |
File change date and time | 17:33, 21 January 2020 |
Color space | Uncalibrated |
Date and time of digitizing | 16:58, 21 January 2020 |
Date metadata was last modified | 18:33, 21 January 2020 |
Unique ID of original document | xmp.did:f3c6e5f7-60c0-d340-9aac-92b0768cfcb6 |