Journal article
Multidecadal trend of basin-scale evapotranspiration estimated using AVHRR data in the Krishna River Basin, India
P Teluguntla, D Ryu, B George, JP Walker
Vadose Zone Journal | WILEY | Published : 2013
DOI: 10.2136/vzj2012.0118
Abstract
The AVHRR data were used to estimate evapotranspiration in the Krishna River Basin, India, for the period 1983 to 2001. Results show that the basin-average evapotranspiration (ET) increased continuously at the mean rate of 4.97 mm yr-1 yr-1 during this period. The land-use information showed that the increased ET was mainly due to the development of irrigation in the basin. Evapotranspiration (ET) is one of the most critical components of terrestrial water balance. Estimating reliable ET across a large region is, however, difficult due to the limited number of ground monitoring stations and the heterogeneous land surface conditions. In this work, spatially distributed monthly ET estimates in..
View full abstractGrants
Awarded by ACIAR Project
Funding Acknowledgements
The research is funded by the Australian Centre for International Agricultural Research (ACIAR) under the John Allwright Fellowship and ACIAR Project LWR-2007-113. We would like to thank the Indian Meteorological Department (IMD), International Water Management Institute (IWMI), International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Central Research Institute for Dryland Agriculture (CRIDA), and the Indian Institute of Tropical Meteorology (IITM) for providing daily meteorological and other ancillary data. We also thank an anonymous reviewer, Trent Biggs, and Associate Editor Venkat Lakshmi for their constructive comments.