Remote Sens. 2010, 2(1), 375-387; doi:10.3390/rs2010375
Article

Combining Satellite Remote Sensing Data with the FAO-56 Dual Approach for Water Use Mapping In Irrigated Wheat Fields of a Semi-Arid Region

1,* email, 2email and 2email
Received: 7 December 2009; in revised form: 7 January 2010 / Accepted: 18 January 2010 / Published: 20 January 2010
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: The aim of this study was to combine the FAO-56 dual approach and remotely-sensed data for mapping water use (ETc) in irrigated wheat crops of a semi-arid region. The method is based on the relationships established between Normalized Difference Vegetation Index (NDVI) and crop biophysical variables such as basal crop coefficient, cover fraction and soil evaporation. A time series of high spatial resolution SPOT and Landsat images acquired during the 2002/2003 agricultural season has been used to generate the profiles of NDVI in each pixel that have been related to crop biophysical parameters which were used in conjunction with FAO-56 dual source approach. The obtained results showed that the spatial distribution of seasonal ETc varied between 200 and 450 mm depending to sowing date and the development of the vegetation. The validation of spatial results showed that the ETc estimated by FAO-56 corresponded well with actual ET measured by eddy covariance system over test sites of wheat, especially when soil evaporation and plant water stress are not encountered.
Keywords: evapotranspiration; FAO-56; Normalized Difference Vegetation Index (NDVI); remote sensing; semi-arid
PDF Full-text Download PDF Full-Text [451 KB, uploaded 19 June 2014 00:06 CEST]

Export to BibTeX |
EndNote


MDPI and ACS Style

Er-Raki, S.; Chehbouni, A.; Duchemin, B. Combining Satellite Remote Sensing Data with the FAO-56 Dual Approach for Water Use Mapping In Irrigated Wheat Fields of a Semi-Arid Region. Remote Sens. 2010, 2, 375-387.

AMA Style

Er-Raki S, Chehbouni A, Duchemin B. Combining Satellite Remote Sensing Data with the FAO-56 Dual Approach for Water Use Mapping In Irrigated Wheat Fields of a Semi-Arid Region. Remote Sensing. 2010; 2(1):375-387.

Chicago/Turabian Style

Er-Raki, Salah; Chehbouni, Abdelghani; Duchemin, Benoit. 2010. "Combining Satellite Remote Sensing Data with the FAO-56 Dual Approach for Water Use Mapping In Irrigated Wheat Fields of a Semi-Arid Region." Remote Sens. 2, no. 1: 375-387.

Remote Sens. EISSN 2072-4292 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert