TY - JOUR
T1 - Remote sensing and GIS techniques for assessing irrigation performance
T2 - Case study in southern California
AU - Taghvaeian, Saleh
AU - Neale, Christopher M.U.
AU - Osterberg, John C.
AU - Sritharan, Subramania I.
AU - Watts, Doyle R.
N1 - Publisher Copyright:
© 2018, ASCE.
PY - 2018/6/1
Y1 - 2018/6/1
N2 - 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.
AB - 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.
KW - Evapotranspiration
KW - Groundwater
KW - Landsat
KW - Performance indicators
UR - http://www.scopus.com/inward/record.url?scp=85045322623&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85045322623&partnerID=8YFLogxK
U2 - 10.1061/(ASCE)IR.1943-4774.0001306
DO - 10.1061/(ASCE)IR.1943-4774.0001306
M3 - Article
AN - SCOPUS:85045322623
SN - 0733-9437
VL - 144
JO - Journal of Irrigation and Drainage Engineering - ASCE
JF - Journal of Irrigation and Drainage Engineering - ASCE
IS - 6
M1 - 05018002
ER -