Optimization of area–volume–elevation curve using GIS–SRTM method for rainwater harvesting in arid areas

Khamis Naba Sayl, Nur Shazwani Muhammad, Ahmed El-Shafie

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The major limitation in planning water harvesting is the lack of knowledge in the estimation of surface area and storage volume at any depth of dam reservoir. The area–volume–elevation (AVE) curve of a reservoir plays a key role in estimating the most suitable depth, optimum surface area and highest capacity of reservoir storage. The existing methods to estimate the AVE curve are costly and time-consuming and require laborious work. This study attempts to develop a method to optimize the AVE curve for earth dams, using the digital elevation model generated by the Shuttle Radar Topography Mission (SRTM) data, and integrate it with the geographic information system (GIS), known as the GIS–SRTM. The proposed method was tested using field data in the Western Desert of Iraq, which is an arid environment. Three constructed small earth dams were selected for this study. The AVE curves were extracted for Horan 2 (H2), Al-gara 2 (G2) and Al-gara 4 (G4) earth dams. Comprehensive analyses have been carried out to evaluate the performance of the AVE curves using the proposed GIS–SRTM method and the field data. From the comparison, the proposed GIS–SRTM method was able to produce reliable AVE curves with a relative error less than 20%. Additionally, the proposed method was less time-consuming and the AVE curves can be visualized immediately. The proposed GIS–SRTM method is relatively supportive in analyzing spatial data to select the optimal site for rainwater harvesting and prevent excessive evaporation losses.

Original languageEnglish
Article number368
JournalEnvironmental Earth Sciences
Volume76
Issue number10
DOIs
Publication statusPublished - 1 May 2017

Fingerprint

Embankment dams
rainwater
dams (hydrology)
rain
earth dam
Geographic information systems
Topography
Dams
Evaporation
Radar
methodology
surface area
Planning
water harvesting
Water
water planning
Iraq
Shuttle Radar Topography Mission
digital elevation models
radar

Keywords

  • Area–volume–elevation curve
  • Arid environment
  • Geographical information system (GIS)
  • GIS–SRTM method
  • Rainwater harvesting
  • Remote sensing

ASJC Scopus subject areas

  • Global and Planetary Change
  • Environmental Chemistry
  • Water Science and Technology
  • Soil Science
  • Pollution
  • Geology
  • Earth-Surface Processes

Cite this

Optimization of area–volume–elevation curve using GIS–SRTM method for rainwater harvesting in arid areas. / Sayl, Khamis Naba; Muhammad, Nur Shazwani; El-Shafie, Ahmed.

In: Environmental Earth Sciences, Vol. 76, No. 10, 368, 01.05.2017.

Research output: Contribution to journalArticle

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