Drought Temporal Variation Characteristics Analysis based on the PDSI Data in Mongolian Plateau

DOI

10.2991/rac-16.2016.136How to use a DOI?

Keywords

Mongolian Plateau; Palmer Drought Severity Index (PDSI); wavelet analysis; spatial and temporal variation

Abstract

According to Mongolian Plateau more droughts, serious hazards, selected 1980-2013 Mongolia Plateau 101 meteorological stations of month precipitation, annual temperature meteorological data, based on the Palmer Drought Severity Index (PDSI) on the spatial and temporal variation characteristics of drought were analyzed. Results show that: drought of Mongolian Plateau has weak mitigated the trend; light drought, Moderate drought frequency is higher It is mainly distributed in the central region of the Mongolian Plateau, severe drought, extreme drought frequency is lower,It is mainly distributed in Inner Mongolia of northeast and Mongolia of northwest . The drought cycle have three times of strong cyclical swings more than 20a, while the scale, under in less than 10a drought cyclical change more frequently appear many times how many alternate precipitation process.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Narisu Narisu
AU  - Yuhai Bao
AU  - Bao Yushan
PY  - 2016/11
DA  - 2016/11
TI  - Drought Temporal Variation Characteristics Analysis based on the PDSI Data in Mongolian Plateau
BT  - Proceedings of the 7th Annual Meeting of Risk Analysis Council of China Association for Disaster Prevention
PB  - Atlantis Press
SP  - 844
EP  - 849
SN  - 1951-6851
UR  - https://doi.org/10.2991/rac-16.2016.136
DO  - 10.2991/rac-16.2016.136
ID  - Narisu2016/11
ER  -