KEYWORDS: Wavelets, Meteorology, Agriculture, Continuous wavelet transforms, Local area networks, Information science, Information technology, Climatology, Signal analyzers, Remote sensing
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.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
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.