@inbook{7caac2dbf49746e981472c3c0581506f,
title = "Estimation of water requirements for a drip-irrigated apple orchard using Landsat 7 satellite images",
abstract = "A study was carried out to evaluate the METRIC (Mapping EvapoTranspiration at high Resolution with Internalized Calibration) model to estimate water requirements or actual evapotranspiration (ETa) for a drip-irrigated apple orchard located in the Maule Region, Chile (lat. 35°25'S; long. 71°23'W; 189 m above mean sea level). For estimating ETa using the METRIC model, seven satellite images (Landsat 7 ETM+) acquired during clear sky days were used from the 2012-2013 growing season. The performance of METRIC was evaluated using measurements of ETa from an Eddy Covariance system (EC) at the time of satellite overpass (11:30 h). The statistical analysis indicated that the METRIC model overestimated ETa values by about 7% with a root mean square error (RMSE), mean absolute error (MAE) and index of agreement (d) of 0.42 mm d-1, 0.29 mm d-1 and 0.88, respectively. Main errors of the METRIC model were associated with the selection of the hot pixels which were difficult to obtain for some satellite images.",
keywords = "Apple, Evapotranspiration, METRIC",
author = "{De La Fuente-S{\'a}iz}, D. and S. Ortega-Far{\'i}as and S. Ortega-Salazar and M. Carrasco-Benavides and A. Kilic and R. Allen",
year = "2017",
month = jan,
day = "25",
doi = "10.17660/ActaHortic.2017.1150.26",
language = "English (US)",
series = "Acta Horticulturae",
publisher = "International Society for Horticultural Science",
pages = "181--188",
editor = "J. Girona and J. Marsal",
booktitle = "8th International Symposium on Irrigation of Horticultural Crops",
address = "Belgium",
}