चित्र:Ganges Delta ESA22274217.tiff
मूल फाइल (३,४२३ × ३,९५७ पिक्सेलहरू, फाइल आकार: ३८.७८ मेगाबाइटहरू, MIME प्रकार: image/tiff)
यो विकिमीडिया कमन्सको चित्र हो। त्यहाँ यसको विवरण पृष्ठबाट जानकारी तल देखाइएको छ। कमन्स स्वतन्त्र रूपमा इजाजतपत्र प्राप्त चित्र भण्डार हो। तपाईंले मद्दत गर्न सक्नुहुन्छ। |
सारांश
वर्णनGanges Delta ESA22274217.tiff |
English: The Copernicus Sentinel-3 mission takes us over the Ganges Delta – the world’s largest river delta. Covering an area of around 100 000 sq km, the Ganges Delta lies in both Bangladesh and the State of West Bengal in India. The delta is formed mainly by the large, sediment-laden waters of the Ganges and Brahmaputra rivers. The river bed of the Ganges can be seen in the left of the image, while Brahmaputra can be seen to the right. The snow-covered Himalayas can be seen at the top of the image. The Ganges river carries fertile soil and nutrients, which it deposits across its vast delta floodplain. The river flows for over 2400 km from the Himalayas before emptying into the Bay of Bengal – the world’s largest bay. It is here where the murky coloured waters mix with the darker coloured waters of the Indian Ocean. The delta is largely covered with a swamp forest, known as the Sundarbans, and can be seen in dark green near the coast with several rivers snaking through it. The Sundarbans, which translates as 'beautiful forest' in Bengali, are the world’s largest mangrove forest and provide a critical habitat for numerous species, including the Bengal tiger and the Indian python. The city of Kolkata (formerly Calcutta) is visible near the Sundarbans in the lower-centre of the image. With over 14 million inhabitants, Kolkata is one of India’s largest cities and is the dominant urban centre of eastern India. Dhaka, the capital of Bangladesh, can be seen in the lower-right of the image, just north of the Buriganga river. Dhaka is Bangladesh’s most populous city and is one of the largest metropolises in South Asia. With a population of over 100 million people, the delta is one of the most densely populated deltas in the world and is extremely vulnerable to climate change. The residents of this region are particularly at risk from repeated catastrophic floods due to heavy runoff of meltwater from the Himalayas, intense rainfall during the monsoon season and from accelerated sea-level rise exacerbated by land subsidence. Sea-level rise is a global issue, but regional differences in sea-level rise put some places at risk more than others. In the coming decades, Asia is likely to feel the worst effects because of the number of people living in low-lying coastal regions. Bangladesh, India, China, Vietnam, Indonesia and Thailand are home to the greatest number of people who today live on land that could be threatened by permanent inundation by 2100. It is vital that the changing height of the sea surface continues to be closely monitored over the coming decades. Set to launch next month, the Copernicus Sentinel-6 mission will be key in undertaking this important role until at least 2030. Renamed in honour of the former director of NASA’s Earth Science Division, the Copernicus Sentinel-6 Michael Freilich satellite is the first ESA-developed satellite to be given a ride into space on the SpaceX Falcon 9 rocket, the world’s first orbital class reusable rocket. Since the satellite arrived at Vandenberg in California on 24 September, it has been transferred to the SpaceX Payload Processing Facility, unpacked and undergone a series of tests to make sure all will be well during the rigours of liftoff and during its five-plus years in orbit around Earth. This image, captured on 31 March 2020, is also featured on the Earth from Space video programme. |
मिति | २३ अक्टोबर २०२० (upload date) |
स्रोत | Ganges Delta |
लेखक | European Space Agency |
अरु संस्करणहरू |
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Activity InfoField | Observing the Earth |
Mission InfoField | Sentinel-3 |
Set InfoField | Earth observation image of the week |
System InfoField | Copernicus |
अनुज्ञा प्राप्त गर्दै
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.
एट्रिब्युसन: 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. |
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. एट्रिब्युसन: ESA, CC BY-SA IGO 3.0
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Items portrayed in this file
जनाउँछ
satellite imagery अङ्ग्रेजी
copyright status अङ्ग्रेजी
copyrighted अङ्ग्रेजी
copyright license अङ्ग्रेजी
media type अङ्ग्रेजी
image/tiff
फाइल इतिहास
मिति/समय मा क्लिक गरेर त्यससमयमा यो फाइल कस्तो थियो भनेर हेर्न सकिन्छ ।
मिति/समय | छोटो चित्र | आकारहरू | प्रयोगकर्ता | टिप्पणी | |
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हालको | १५:२७, २३ अक्टोबर २०२० | ३,४२३×३,९५७ (३८.७८ मेगाबाइटहरू) | OptimusPrimeBot | #Spacemedia - Upload of https://esamultimedia.esa.int/img/2020/10/Ganges_delta_S3_20200331_zoom_ER.tif via Commons:Spacemedia |
फाइल प्रयोग
यो फाइलसँग कुनै पनि पृष्ठ जोडिएको छैन।
मेटाडाटा
यस फाइलमा अतिरिक्त जानकारीहरू छन्, यसलाई बनाउन सम्भवतः डिजिटल क्यामरा अथवा स्क्यानर प्रयोग गरिएको हुनुपर्छ । यदि यस फाइललाई मूल अवस्थाबाट परिवर्तन गरिएको हो भने यस फाइलले सम्पूर्ण विवरण प्रतिबिम्बित गर्न सक्नेछैन ।
चौडाइ | ३,४२३ पिक्सेल |
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उचाई | ३,९५७ पिक्सेल |
घटक प्रति बिट्स |
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संकुचन कार्य | नखादिएको(कम्प्रेस नगरिएको) |
पिक्सेल कम्पोजिसन | आरजीबी(रातोहरियोनिलो) |
अभिविन्यास | सामान्य |
घटकहरुको संख्या | ३ |
प्रतिपंक्ति पट्टीहरुको संख्या | ९६ |
क्षैतिज संकल्प(resolution) | ७२ प्रतिइन्चथोप्लाहरु(डिपिआई) |
ऊर्ध्वाधर संकल्प(resolution) | ७२ प्रतिइन्चथोप्लाहरु(डिपिआई) |
आँकड़ा (डेटा) व्यवस्था | टुक्रे प्रारुप |
सेतो बिंदु क्रोम्यासिटी(chromaticity) |
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क्रोमेटिसिटीज अफ प्राईमरिटीज |
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