Supplementary Data for Tonle Sap Lake Sand Mining Impact Study

Quan Le provides supplementary information files for a 2026 research article on sand mining's impact on the Tonle Sap Lake flood pulse. The 2.5 MB dataset includes PDF documents supporting the analysis of flow changes from 1998 to 2018 and projections to 2038. The data is licensed under CC-BY 4.0.

Use Cases

• Analyzing riverbed lowering trends and reverse flow decline percentages (40-50%) from 1998-2018.
• Projecting future reverse flow declines (69% by 2038) based on sand mining scenarios.
• Assessing impacts on Mekong Delta flood risk using monsoon flow increase estimates (~26 km³).
• Evaluating dry-season flow reductions (~59%) and their contribution to saltwater intrusion in the delta.

Strengths

• Data supports a peer-reviewed study quantifying specific flow reductions (47% for medium flows).
• Includes projections for future impacts up to the year 2038.
• Clear provenance from a CC-BY 4.0 licensed research publication.

Limitations

• Primary data format is PDF, limiting direct computational analysis without extraction.
• Small 2.5 MB size suggests the dataset contains summary documents, not raw observational time series.
• Underlying raw data (e.g., gauge readings, mining volumes) may not be included.

Provenance

Source

Figshare repository for the article 'Sand-mining-driven reduction in Tonle Sap Lake’s critical flood pulse'.

Collection Method

Research analysis, likely combining hydrological modeling, satellite data, and published records.

Time Range

Analysis period 1998-2018, with projections to 2038.

Freshness

Supplementary to a 2026 article, indicating recent analysis.

Geography

Tonle Sap Lake and the Lower Mekong River system, including the Mekong Delta.