Articles | Volume 21, issue 9
https://doi.org/10.5194/hess-21-4573-2017
https://doi.org/10.5194/hess-21-4573-2017
Research article
 | 
13 Sep 2017
Research article |  | 13 Sep 2017

Characterizing the spatial variations and correlations of large rainstorms for landslide study

Liang Gao, Limin Zhang, and Mengqian Lu

Data sets

Rainfall data L. Zhang http://cezhangl.people.ust.hk/Totalrainfall.xlsx

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Short summary
Rainfall is the primary trigger of landslides. However, the rainfall intensity is not uniform in space, which causes more landslides in the area of intense rainfall. The primary objective of this paper is to quantify spatial correlation characteristics of three landslide-triggering large storms in Hong Kong. The spatial maximum rolling rainfall is represented by a trend surface and a random field of residuals. The scales of fluctuation of the residuals are found between 5 km and 30 km.