Study on the spring drought rule in the karst region of Yunnan and Guizhou Plateau in China

Qilong Miao; Shujie Yuan; Lan Shi; Xiaoping Gu

doi:10.1117/12.746860

14 November 2007 Study on the spring drought rule in the karst region of Yunnan and Guizhou Plateau in China

Qilong Miao, Shujie Yuan, Lan Shi, Xiaoping Gu

Proceedings Volume 6790, MIPPR 2007: Remote Sensing and GIS Data Processing and Applications; and Innovative Multispectral Technology and Applications; 67903Z (2007) https://doi.org/10.1117/12.746860
Event: International Symposium on Multispectral Image Processing and Pattern Recognition, 2007, Wuhan, China

Abstract

Using the daily precipitation data from March to May of 88 stations from 1951 to 2004 in the karst region of Yunnan and Guizhou plateau (KRYGP), the indexes of the spring drought intensity (ISDI) are calculated. The temporal series of the ISDI are analyzed by Morlet wavelet. The complex multi-time scale structure of the ISDI variation is studied. The results show that the ISDI sequence variations have the discontinuity points and apparent 22-, 3- and 2- yearly periods, with 2-yearly as the most pronounced period. The drought degree will get lighter (heavier) in extra-heavy and severe drought regions (medium and light drought ones) by 2-yearly period forecast. We also study the spring drought's spatial and temporal feature, circulation forms.

Citation Download Citation

Qilong Miao, Shujie Yuan, Lan Shi, and Xiaoping Gu "Study on the spring drought rule in the karst region of Yunnan and Guizhou Plateau in China", Proc. SPIE 6790, MIPPR 2007: Remote Sensing and GIS Data Processing and Applications; and Innovative Multispectral Technology and Applications, 67903Z (14 November 2007); https://doi.org/10.1117/12.746860

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available