By Topic

Water resources estimation model based on remote sensing evapotranspiration

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
Hao Wang ; Institute of Remote Sensing Applications, Chinese Academy of Science, Beijing, China ; Bingfang Wu ; Shanlong Lu ; Ninglei Ouyang
more authors

There are many problems for the current water resource estimation methods. For the traditional water resources assessment method, the runoff reduction cannot be accurately estimated, because the unmeasured terms of runoff reduction are either neglected or statistically estimated according to the local population and water use ration. Also, the hydrogeological parameters used to calculate the water replenishment to aquifer are empirical. Furthermore, the traditional water resources assessment method is labor consuming and fund consuming. For the hydrological model, model processes are complicated, and parameters should be calibrated with a lot of observation data. In order to solve the above-mentioned problems, this paper proposes an innovative water resources estimation model based on remote sensing evapotranspiration (ET). There, the water resources are defined as the difference between precipitation and uncontrollable ET. The uncontrollable ET is the natural ET from natural surface and doesn't include the ET from water consumption of humans. By combining the remote sensing ET and land use according to the natural characteristic of land uses, the uncontrollable ET is obtained. While the cropland uncontrollable ET is obtained by extracting the soil evaporation using satellite based Normalized Difference Vegetation Index (NDVI). A case study result shows that calculated water resources are relatively high correlated with that of obtaining from water resources reports. And the deviation of the calculated water resources can be eliminated by improving the accuracy of the precipitation interpolation and land use classification.

Published in:

Water Resource and Environmental Protection (ISWREP), 2011 International Symposium on  (Volume:2 )

Date of Conference:

20-22 May 2011