Journal cover Journal topic
Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
https://doi.org/10.5194/nhess-2016-249
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
17 Nov 2016
Review status
This discussion paper has been under review for the journal Natural Hazards and Earth System Sciences (NHESS). The revised manuscript was not accepted.
Spatial characteristics analysis of drought disasters in North China during the Ming and Qing Dynasties
Shuoben Bi1, Shengjie Bi2, Changchun Chen1, Athanase Nkunzimana1, Yanping Li1, and Weiting Wu1 1School of Geography & Remote Sensing, Nanjing University of Information Science and Technology, Nanjing 210044, China
2Henry Samueli School of Engineering and Applied Science, University of California, Los Angeles, CA 90095-1594, USA
Abstract. This paper studies grade sequence of drought disasters in 21 sites in Ming and Qing Dynasties (1470–1912) in North China. Two aspects are explored, in order to study the spatial distribution and characteristics of drought disaster in North China. The reconstruction of the sequence of drought disaster in North China during the Ming and Qing Dynasties was based on Empirical Orthogonal Function (EOF) and on Rotated Empiric Orthogonal Function (REOF). The drought disaster has been divided into several space models and into several sensitive space areas. It can provide an important basis for the better understanding of the spatial distribution of drought disasters in North China during the historical period. The research's results show that: the frequency is high in northern area and is low in southern area of North China. The frequency of drought intensity is high in South-East, low in West China. Meanwhile, the North China can be divided into six main sensitive regions: Middle-east of North China, west of North China, South of North China, East of North China, North-east and North-west of North China.

Citation: Bi, S., Bi, S., Chen, C., Nkunzimana, A., Li, Y., and Wu, W.: Spatial characteristics analysis of drought disasters in North China during the Ming and Qing Dynasties, Nat. Hazards Earth Syst. Sci. Discuss., https://doi.org/10.5194/nhess-2016-249, 2016.
Shuoben Bi et al.
Shuoben Bi et al.

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Short summary
The paper studies grade sequence of drought disasters in North China from 1470 to 1912. Two aspects are explored in order to study the spatial distribution and characteristics of drought disaster. The reconstruction of the sequence of drought disaster was based on EOF and on Rotated EOF. The drought disaster has been divided into several models and into several sensitive areas. It can provide an basis for better understanding of the spatial distribution of drought disasters in North China.
The paper studies grade sequence of drought disasters in North China from 1470 to 1912. Two...
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