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Google Earth Engine for concurrent flood monitoring in the lower basin of Indo-Gangetic-Brahmaputra plains

Author

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  • Preet Lal

    (Central University of Jharkhand)

  • Aniket Prakash

    (Central University of Jharkhand)

  • Amit Kumar

    (Central University of Jharkhand)

Abstract

The present study focused on the recent flood inundation (July 2020) that occurred in the lower Indo-Gangetic-Brahmaputra plains (IGBP) using concurrent C-band Sentinel-1A Synthetic Aperture Radar images in Google Earth Engine. The study exhibited that a substantial proportion of IGBP (40,929 km2) was inundated primarily in Bangladesh (9.09% of the total inundation), Assam (8.99%), and Bihar (6.29%) during June–July 2020. The severe impact of flood inundation was observed in croplands (4.41% of the total cropland), followed by settlements (20.98% of the total settlements) that affected a large population (~ 10,046,262) in IGBP. The prevailing COVID-19 pandemic has debilitated the efforts of mitigation and responses to flooding risks. The study necessitates adopting an integrated, multi-hazard, multi-stakeholder approach with an emphasis on self-reliance of the community for sustenance with local resources and practices.

Suggested Citation

  • Preet Lal & Aniket Prakash & Amit Kumar, 2020. "Google Earth Engine for concurrent flood monitoring in the lower basin of Indo-Gangetic-Brahmaputra plains," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 104(2), pages 1947-1952, November.
  • Handle: RePEc:spr:nathaz:v:104:y:2020:i:2:d:10.1007_s11069-020-04233-z
    DOI: 10.1007/s11069-020-04233-z
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    References listed on IDEAS

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    1. Vishwas Kale, 2003. "Geomorphic Effects of Monsoon Floods on Indian Rivers," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 28(1), pages 65-84, January.
    2. P. C. D. Milly & R. T. Wetherald & K. A. Dunne & T. L. Delworth, 2002. "Increasing risk of great floods in a changing climate," Nature, Nature, vol. 415(6871), pages 514-517, January.
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    Cited by:

    1. Arvind Chandra Pandey & Kavita Kaushik & Bikash Ranjan Parida, 2022. "Google Earth Engine for Large-Scale Flood Mapping Using SAR Data and Impact Assessment on Agriculture and Population of Ganga-Brahmaputra Basin," Sustainability, MDPI, vol. 14(7), pages 1-22, April.
    2. Dinesh Singh Bhati & Swatantra Kumar Dubey & Devesh Sharma, 2021. "Application of Satellite-Based and Observed Precipitation Datasets for Hydrological Simulation in the Upper Mahi River Basin of Rajasthan, India," Sustainability, MDPI, vol. 13(14), pages 1-14, July.

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    Keywords

    Sentinel 1A; SAR; Flood hazard; Risk;
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