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Advances in Meteorology
Volume 2014 (2014), Article ID 873593, 11 pages
http://dx.doi.org/10.1155/2014/873593
Research Article

Spatial and Temporal Characteristics of Meteorological Drought in Shandong Province, China, from 1961 to 2008

1Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
2University of Chinese Academy of Sciences, Beijing 100049, China
3College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China

Received 10 February 2014; Revised 20 April 2014; Accepted 5 May 2014; Published 15 June 2014

Academic Editor: Shengli Huang

Copyright © 2014 Xiaoli Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Shandong province is located in the northern part of China and tends to be a drought-prone region. This study is dedicated to making a comprehensive and quantitative analysis of the spatial patterns of drought frequency and its climate trend coefficient, drought grades, and temporal characteristics of drought coverage area, drought duration, and drought intensity from 1961 to 2008 by using the meteorological drought composite index (CI). The results indicated that the occurrence frequency of meteorological drought in Shandong province was generally high and some part of this region such as Jiaodong peninsula had suffered drought pressure with an evident ascending trend. The drought extent and influence were very severe in 1980s and 1990s but very slight in 1964; large-area drought mainly occurred after the 1970s and the yearly and seasonally interdecadal drought duration both showed a fluctuation of 10a periodic cycle approximately. Furthermore, the slight drought mainly appeared in the northwest and southwest while the other grades of drought exhibited much significant spatial and temporal variability. Besides, drought in spring was more serious than that in winter. This study is anticipated to support the mitigation of drought hazards and to improve the management practices of environment system in Shandong province.