Remote sensing and GIS techniques for assessing irrigation performance: Case study in southern California

Saleh Taghvaeian, Christopher M.U. Neale, John C. Osterberg, Subramania I. Sritharan, Doyle R. Watts

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

This paper presents the potential of remotely sensed data in addressing spatially distributed irrigation equity, adequacy, and sustainability. The surface energy balance algorithm for land (SEBAL) was implemented to map actual evapotranspiration (ET) over an irrigation district in southern California. Potential ET was also mapped based on the Priestley-Taylor method, modified to account for the effect of horizontally transported energy on enhancing/suppressing ET. Remotely sensed products were integrated with ground-based data in a Geographical Information System (GIS) environment to quantify several irrigation and drainage performance indicators. The amongand within-field coefficients of variation of actual ET were comparable to previous studies, suggesting that water consumption was uniform across the irrigation district. The relative ET was high, indicating that irrigation supply was adequate. The extensive network of open drains was also found to be functioning at an optimal level according to the results of two performance indicators based on the magnitude and uniformity of groundwater depth.

Original languageEnglish (US)
Article number05018002
JournalJournal of Irrigation and Drainage Engineering - ASCE
Volume144
Issue number6
DOIs
StatePublished - Jun 1 2018

Keywords

  • Evapotranspiration
  • Groundwater
  • Landsat
  • Performance indicators

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Water Science and Technology
  • Agricultural and Biological Sciences (miscellaneous)

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