Study on drought fine distribution over rugged terrains based on GIS

Y. H. Gao; Y. Z. Tian; Z. J. Chen; Y. H. Tang

doi:10.1117/12.764648

7 August 2007 Study on drought fine distribution over rugged terrains based on GIS

Y. H. Gao, Y. Z. Tian, Z. J. Chen, Y. H. Tang

Proceedings Volume 6754, Geoinformatics 2007: Geospatial Information Technology and Applications; 67540Z (2007) https://doi.org/10.1117/12.764648
Event: Geoinformatics 2007, 2007, Nanjing, China

Abstract

Using GIS technique and 1 : 250000 DEM data, this paper studies the distribution of drought frequency determined by two interpolation methods of inverse distance weighted and regression. The results from two methods are compared. The results show that the regression method based on the factors of climate and geography can reflect drought distribution reasonably and can be used for space extension over the rugged terrains where meteorological stations are sparse.

Citation Download Citation

Y. H. Gao, Y. Z. Tian, Z. J. Chen, and Y. H. Tang "Study on drought fine distribution over rugged terrains based on GIS", Proc. SPIE 6754, Geoinformatics 2007: Geospatial Information Technology and Applications, 67540Z (7 August 2007); https://doi.org/10.1117/12.764648

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