July 8, 2024Environmental Research LettersOpen Access

Sand mining across the Ganges-Brahmaputra-Meghna catchment; assessment of activity and implications for sediment delivery

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Authors

ADAfrah DahamUniversity of Bristol GSGregory H. Sambrook SmithNew York University Press ANAndrew NicholasUniversity of Exeter

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Implication

Remote sensing analysis reveals pervasive sand mining in the Ganges-Brahmaputra-Meghna river system, indicating critical risks to downstream delta sediment delivery.

Key Points

Total annual sand extraction reaches approximately 115 million tonnes per year across the basin, rivaling the natural bedload flux of the entire river catchment.
Remote sensing assessment across the 1.72 million square kilometer catchment tracked sand mining between 2016 and 2021, uncovering widespread and increasing extraction.
Highlights the critical need to incorporate upstream sand mining into delta management frameworks, especially as rising sea levels threaten global sediment delivery.

Cite This Study

Daham et al. (2024) studied this question.

synapsesocial.com/papers/68e60f70b6db6435875a2db1 https://doi.org/10.1088/1748-9326/ad6016

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Implication

Remote sensing analysis reveals pervasive sand mining in the Ganges-Brahmaputra-Meghna river system, indicating critical risks to downstream delta sediment delivery.

Sand mining across the Ganges-Brahmaputra-Meghna catchment; assessment of activity and implications for sediment delivery

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Implication

Key Points

Cite This Study

Sand mining across the Ganges-Brahmaputra-Meghna catchment; assessment of activity and implications for sediment delivery

Discussion

Member takes

Implication

Key Points

Cite This Study

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