SciELO - Scientific Electronic Library Online

 
 issue36Los paisajes del agua en la cuenca del río Baker: bases conceptuales para su valoracion integralCambio de uso del suelo y escorrentía superficial: aplicación de un modelo de simulación espacial en Los Ángeles, VIII Región del Biobío, Chile author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Revista de geografía Norte Grande

On-line version ISSN 0718-3402

Abstract

SANCHEZ, Marcela  and  CARVACHO, Luis. Estimación de evapotranspiración potencial, ETP, a partir de imágenes NOAAAVHRR en la VI Región del Libertador General Bernardo O'Higgins. Rev. geogr. Norte Gd. [online]. 2006, n.36, pp.49-60. ISSN 0718-3402.  http://dx.doi.org/10.4067/S0718-34022006000200003.

Using regression analysis between potential evapotranspiration values, ETP, obtained with Penman´s empirical method (1948) in 26 meteorological observatories, and remote sensing derived data from NOAA AVHRR images essentially surface temperature and the Normalized Difference Vegetation Index (NDVI)models for estimating ETP in VI Región del Libertador General Bernardo O´Higgins are generated for the period between september 1998 and december 2000. These models were satisfactorily evaluated in the meteorological observatories used. According these results, the utility of remote sensing in determination of ETP at regional scale is confirmed

Keywords : potential evapotranspiration; remote sensing; spatial interpolation.

        · abstract in Spanish     · text in Spanish

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License