Determining water reservoir characteristics with global elevation data

C. W T van Bemmelen, M. Mann, M. P. de Ridder, M. M. Rutten, N. C. van de Giesen

Research output: Contribution to journalArticleScientificpeer-review

14 Citations (Scopus)
156 Downloads (Pure)

Abstract

Quantification of human impact on water, sediment, and nutrient fluxes at the global scale demands characterization of reservoirs with an accuracy that is presently unavailable. This letter presents a new method, based on virtual dam placement, to make accurate estimations of area-volume relationships of large reservoirs, using solely readily available elevation data. The new method is based on regional similarity of area-volume relationships. The essence of the method is that virtual reservoirs are created in the vicinity of an existing reservoir to derive area-volume relationships for the existing reservoir. The derived area-volume relationships reproduced in situ bathymetric data well. An intercomparison for twelve reservoirs resulted in an average R2 = 0.93. This is a significant improvement on estimates using the best existing global regression model, which gives R2 = 0.54 for the same set of reservoirs.

Original languageEnglish
Pages (from-to)11,278-11,286
JournalGeophysical Research Letters
Volume43
Issue number21
DOIs
Publication statusPublished - 16 Nov 2016

Keywords

  • characteristics
  • global elevation data
  • large dams
  • reservoirs
  • water management

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