Drought Evolution Due to Climate Change and Links to Precipitation Intensity in the Haihe River Basin
AbstractDroughts often have a substantial impact on normal socio-economic activities and agricultural production. The Haihe River Basin, one of the primary food production areas in China, has become increasingly sensitive to alternating droughts and floods, and the sharp transitions between them, due to rapid economic development and population growth combined with climate change. In this study, we employ the self-organizing map (SOM) neural network method to perform a cluster analysis on 43 meteorological stations in the study area, dividing the basin into five sub-regions. Then daily precipitation data (1960–2015) are collected, and the number of continuous dry days is used as a drought index to investigate drought evolution trends. Lastly, the Pearson-III curve is used to analyze the first daily precipitation after different drought duration, and the relationships between precipitation intensity, drought duration, and interdecadal drought frequency are observed. The results demonstrate that under the climate warming of the Haihe River Basin, the frequency of droughts increases throughout the whole basin, while the droughts are of shorter duration, the probability of more intense first daily precipitation after droughts increases during the dry–wet transition. The research provides a useful reference for the planning and management of water resources in the Haihe River Basin. View Full-Text
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Liu, B.; Yan, Z.; Sha, J.; Li, S. Drought Evolution Due to Climate Change and Links to Precipitation Intensity in the Haihe River Basin. Water 2017, 9, 878.
Liu B, Yan Z, Sha J, Li S. Drought Evolution Due to Climate Change and Links to Precipitation Intensity in the Haihe River Basin. Water. 2017; 9(11):878.Chicago/Turabian Style
Liu, Bin; Yan, Zhihong; Sha, Jinxia; Li, Su. 2017. "Drought Evolution Due to Climate Change and Links to Precipitation Intensity in the Haihe River Basin." Water 9, no. 11: 878.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.