Autor: |
Shahzaib Khan, Faisal Hossain, Tamlin Pavelsky, Grant M. Parkins, Megan Rodgers Lane, Angelica M. Gomez, Sanchit Minocha, Pritam Das, Sheikh Ghafoor, Md. Arifuzzaman Bhuyan, Md. Nazmul Haque, Preetom Kumar Sarker, Partho Protim Borua, Jean-Francois Cretaux, Nicolas Picot, Vivek Balakrishnan, Shakeel Ahmad, Nirakar Thapa, Rajan Bhattarai, Faizan-ul Hasan, Bareerah Fatima, Muhammad Ashraf, Shahryar Khalique Ahmad, Arthur Compin |
Jazyk: |
angličtina |
Rok vydání: |
2023 |
Předmět: |
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Zdroj: |
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 16, Pp 2386-2401 (2023) |
Druh dokumentu: |
article |
ISSN: |
2151-1535 |
DOI: |
10.1109/JSTARS.2023.3250354 |
Popis: |
We studied variations in the volume of water stored in small lakes and wetlands using satellite remote sensing and lake water height data contributed by citizen scientists. A total of 94 water bodies across the globe were studied using satellite data in the optical and microwave wavelengths from Landsat 8, Sentinel-1, and Sentinel-2. The uncertainty in volume estimation as a function of geography and geophysical factors, such as cloud cover, precipitation, and water surface temperature, was studied. The key finding that emerged from this global study is that uncertainty is highest in regions with a distinct precipitation season, such as in the monsoon dominated South Asia or the Pacific Northwestern region of the USA. This uncertainty is further compounded when small lakes and wetlands are seasonal with alternating land use as a water body and agricultural land, such as the wetlands of Northeastern Bangladesh. On an average, 45% of studied lakes could be estimated of their volume change with a statistical significant uncertainty that is less than the expected volume in South Asia. In North America, this statistically significant uncertainty in volume estimation was found to be around 50% in lakes eastward of the 108th meridian with lowest uncertainty found in lakes along the East coast of the USA. The article provides a baseline for understanding the current state of the art in estimating volumetric change of lakes and wetlands using citizen science in anticipation of the recently launched Surface Water and Ocean Topography Mission. |
Databáze: |
Directory of Open Access Journals |
Externí odkaz: |
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