Water and suspended sediment discharges for the Mekong Delta, Vietnam (2005-2015)

• Published by: Environmental Information Data Centre
• Last updated: 16 February 2023
• Topic: Not added
• Licence: Other Licence ; View licence information

Summary

This dataset describes hourly time series of discharge and suspended sediment flux at four sites in the Vietnamese Mekong Delta (Chau Doc, Tan Chau, Can Tho and My Thaun) for the period 2005 – 2015. This data was calculated from historic Acoustic Doppler Current Profiler (aDcp)data obtained as part of routine flood monitoring conducted by the Vietnamese Hydrological Agency. The data were collated by the authors. The data were processed to back out sediment fluxes through the delta through calibration of the acoustic backscatter signal to suspended sediment concentrations collected in Chau Doc (May 2017) and Can Tho (September 2017). For each aDcp instrument acoustic backscatter signal was calibrated to observed suspended sediment concentrations (SSCs). These concentrations values were then matched to measured acoustic backscatter values (dB) from the depth at which each sample was taken to generate power law calibration curves. To generate daily fluxes, the point specific ADCP fluxes were used to generate sediment ratings curves between sediment flux (kg/s) and discharge (m3/s). These ratings curves were then propagated over recorded daily discharge values measured by the Vietnamese hydrological agency to provide daily fluxes over the period of record. The work was funded through NERC grant reference NE/P008100/1 - Deciphering the dominant drivers of contemporary relative sea-level change: Analysing sediment deposition and subsidence in a vulnerable mega-delta. Full details about this dataset can be found at https://doi.org/10.5285/ac5b28ca-e087-4aec-974a-5a9f84b06595

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Link to the data	Format	File added	Data preview
Supporting information	ZIP	16 February 2023	Not available
Download the data	N/A	16 February 2023	Not available

Additional information

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• Added to data.gov.uk: 2022-05-20T10:39:10
• Access contraints: © University of Hull
• Harvest GUID: ac5b28ca-e087-4aec-974a-5a9f84b06595
• Extent: Latitude: 11.146° to 8.027°
• Extent: Longitude: 104.277° to 107.331°
• Dataset reference date: 2020-06-26 (publication)
• Frequency of update: notPlanned
• Responsible party: NERC EDS Environmental Information Data Centre (custodian); NERC Environmental Information Data Centre (publisher); University of Hull (pointOfContact, author); University of Southampton (author); Can Tho University (author)
• ISO 19139 resource type: dataset
• Metadata language: eng
• Source Metadata: XML
• Source Metadata: HTML

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