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

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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Date (Publication)
2020-06-26
Identifier
https://catalogue.ceh.ac.uk/id/ac5b28ca-e087-4aec-974a-5a9f84b06595
Identifier
doi: / 10.5285/ac5b28ca-e087-4aec-974a-5a9f84b06595
Other citation details
Darby, S.E., Hackney, C.R., Parsons, D.R., Tri, P.D.V. (2020). Water and suspended sediment discharges for the Mekong Delta, Vietnam (2005-2015). NERC Environmental Information Data Centre 10.5285/ac5b28ca-e087-4aec-974a-5a9f84b06595
Custodian
  NERC EDS Environmental Information Data Centre
Publisher
  NERC Environmental Information Data Centre
Point of contact
  University of Hull - Hackney, C.R.
Author
  University of Southampton - Darby, S.E.
https://orcid.org/0000-0001-8778-4394
Author
  University of Hull - Hackney, C.R.
https://orcid.org/0000-0001-8876-4336
Author
  University of Hull - Parsons, D.R.
https://orcid.org/0000-0002-5142-4466
Author
  Can Tho University - Tri, P.D.V.
Maintenance and update frequency
notPlanned Not planned
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This resource is available under the terms of the Open Government Licence
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© University of Hull
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otherRestrictions Other restrictions
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© University of Southampton
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otherRestrictions Other restrictions
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© Can Tho University
Use constraints
otherRestrictions Other restrictions
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If you reuse this data, you should cite: Darby, S.E., Hackney, C.R., Parsons, D.R., Tri, P.D.V. (2020). Water and suspended sediment discharges for the Mekong Delta, Vietnam (2005-2015). NERC Environmental Information Data Centre https://doi.org/10.5285/ac5b28ca-e087-4aec-974a-5a9f84b06595
Spatial representation type
textTable Text, table
Metadata language
EnglishEnglish
Character set
utf8 UTF8
Topic category
  • Environment
Begin date
2005-01-01
End date
2015-12-31
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Distribution format
  • Comma-separated values (CSV) ()

Distributor
  NERC EDS Environmental Information Data Centre
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Conformance result

Date (Publication)
2010-12-08
Statement
Each ADCP instruments 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. Data collation was carried out in Excel. Data were provided as comma seperated value (csv) files for deposit into the EIDC.
File identifier
ac5b28ca-e087-4aec-974a-5a9f84b06595 XML
Metadata language
EnglishEnglish
Character set
ISO/IEC 8859-1 (also known as Latin 1) 8859 Part 1
Hierarchy level
dataset Dataset
Hierarchy level name
dataset
Date stamp
2024-03-01T11:28:03
Metadata standard name
UK GEMINI
Metadata standard version
2.3
Point of contact
  NERC EDS Environmental Information Data Centre
Lancaster Environment Centre, Library Avenue, Bailrigg , Lancaster , LA1 4AP , UK
https://eidc.ac.uk/
 
 

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