Basal crop coefficient from remote sensing assessment in rain-fed grapes in southeast Spain

Isidro Campos, Alfonso Calera, Claudio Balbontín, Enrique A. Torres, José González-Piqueras, Christopher M.U. Neale

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

This paper evaluates the capability of the reflectance-based crop coefficient coupled with a water balance model to estimate crop evapotranspiration (ET) and soil water depletion on rain-fed grapes. A grape orchard located in southeast Spain was studied during the 2009 growing season. Model results were evaluated by comparison with ET measured by a Bowen Ratio and Eddy Covariance systems and soil water content measured with a Capacitance Probe system. Comparison between measured and modelled ET showed a good agreement (RMSE = 0.53 mm d-1) and the greatest difference between measured and simulated water content was 7% in relative error. By testing the model on this type of fruit tree and taking into account the results, the methodology using visible and near infrared remote sensing to obtain a reflectance-based crop coefficient gains robustness and confidence for future operational applications.

Original languageEnglish (US)
Title of host publicationRemote Sensing and Hydrology
Pages397-400
Number of pages4
StatePublished - 2012
Externally publishedYes
EventRemote Sensing and Hydrology Symposium - Jackson Hole, WY, United States
Duration: Sep 27 2010Sep 30 2010

Publication series

NameIAHS-AISH Publication
Volume352
ISSN (Print)0144-7815

Conference

ConferenceRemote Sensing and Hydrology Symposium
Country/TerritoryUnited States
CityJackson Hole, WY
Period9/27/109/30/10

Keywords

  • Dual crop coefficient
  • Evapotranspiration
  • Rain-fed grapes
  • Vegetation indices

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

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