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New systemically measured sand mining budget for the Mekong Delta reveals rising trends and significant volume underestimations

New systemically measured sand mining budget for the Mekong Delta reveals rising trends and significant volume underestimations

This is a Preprint and has not been peer reviewed. This is version 1 of this Preprint.

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Authors

Charles Robin Gruel, Edward Park, Loc Huu Ho , Sameh Kantoush, Lian Feng, Binh Van Doan, Adam D. Switzer

...  more

Abstract

The river beds of the Mekong Delta are some of the most intensively sand mined places in the world, however sand mining budgets are limited to rough and indirect estimates. Here, we provide a systematic, semi-physically based estimation of the Mekong Delta’s sand mining budget. We provide a quantified budget that overcomes limitations resulting from previous reliance on officially declared statistics and bathymetric surveys of short channel reaches. We apply Sentinel-1 radar imagery to monitor the distribution of sand mining activities using boat metrics-driven mining intensity maps correlated with a field-based bathymetry difference map deri...  more

DOI

https://doi.org/10.31223/X5H61H

Subjects

Civil and Environmental Engineering, Earth Sciences, Physical Sciences and Mathematics, Planetary Sciences

Keywords

Riverbed incision, Mekong Delta

Dates

Published: 2021-07-16 00:19

License

CC BY Attribution 4.0 International