2 April 2014 Spatially explicit estimation of soil-water resources by coupling of an eco-hydrological model with remote sensing data in the Weihe River Basin of China
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Abstract
Soil-water resources are key components for agriculture and have great potential. Strategic and significant efforts are, therefore, required to make full use of soil-water resources, especially in dry or semidry areas. We coupled a soil-water model with remotely sensed data and associated techniques to analyze the spatial-temporal dynamics of soil-water resources in the Weihe River Basin in China. The moderate-resolution imaging spectroradiometer (MODIS), Chinese meteorological satellite precipitation estimation data (FY-2), and global land data assimilation system (GLDAS) products were used for spatial land surface characteristics interpretation and model parameters derivation. The modeling results were compared and validated using data from a nearby observation site. The average soil-water resources of the Weihe River Basin vary between 40 and 100 mm during the simulation period from January to December, with a maximum of 99 mm appearing in August and a minimum of 38 mm in December. Forest land was characterized by large soil-water resources, with an average annual rate of 1094.7 mm. Farmland and grassland exhibited low values, with average annual rates of 986.7 and 893.5 mm, respectively. The results could be taken into consideration for soil-water resources management.
© 2014 Society of Photo-Optical Instrumentation Engineers (SPIE)
Shudong Wang, Shudong Wang, Yujuan Wang, Yujuan Wang, Shengtian Yang, Shengtian Yang, Mingcheng Wang, Mingcheng Wang, Lifu Zhang, Lifu Zhang, Jia Liu, Jia Liu, } "Spatially explicit estimation of soil-water resources by coupling of an eco-hydrological model with remote sensing data in the Weihe River Basin of China," Journal of Applied Remote Sensing 8(1), 083653 (2 April 2014). https://doi.org/10.1117/1.JRS.8.083653 . Submission:
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