The Characteristic of temporal and spatial patterns of Torrential rains in Guangdong-Hong Kong-Macao greater bay area in Recent 36 years
Yusi Li, Qinghua Gong, Junxiang Zhang, Zhao Guo, Bowen Liu
Available Online November 2019.
- https://doi.org/10.2991/dramclr-19.2019.12How to use a DOI?
- Guangdong-Hong Kong-Macau Greater Bay Area,rainstorm,variation characteristics, principal component analysis,Mann-kendall
- Under the background of global warming, extreme weather phenomena occur frequently,and the number of natural disasters increases slowly.Rainstorm disaster is a common natural disaster,which has a significant impact on nature and society.Based on the daily rainfall data of 13 meteorological observation stations of Guangdong-Hong Kong-Macao Greater Bay Area from 1980 to 2015 and the agricultural disaster data from 1992 to 2007,this paper discusses the temporal and spatial distribution characteristics of Guangdong-Hong Kong-Macao Greater Bay Area rainstorm in recent 36 years and the distribution of agricultural disasters under the influence of rainstorm by using Kringing method, principal component analysis and M/K detection. The results show that:(1)The area is rich in heavy rainfall. In time,the storm rainfall fluctuates and increases,which has the characteristics of seasonality and periodicity,and the number of rainstorm days decreases with the increase of rainstorm intensity.(2)Guangdong-Hong Kong-Macau Greater Bay Area storm rainfall has obvious difference in space,showing a trend of increasing year by year from north to south.The rainstorm index is the highest and the lowest is Jiangmen and Zhaoqing respectively.(3) rainstorm is an important factor leading to flood disaster in this area.With the increase of storm rainfall,crops are affected by disasters,and the disaster area shows a downward trend year by year,which indicates that the regional economic level is improved and the ability of disaster prevention and mitigation is also strengthened.In the context of global warming.On the other hand, it can provide scientific basis for disaster prediction to understand the time evolution and spatial distribution of rainstorm in Guangdong, Hong Kong and Macao Bay.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Yusi Li AU - Qinghua Gong AU - Junxiang Zhang AU - Zhao Guo AU - Bowen Liu PY - 2019/11 DA - 2019/11 TI - The Characteristic of temporal and spatial patterns of Torrential rains in Guangdong-Hong Kong-Macao greater bay area in Recent 36 years BT - Proceedings of the Fourth Symposium on Disaster Risk Analysis and Management in Chinese Littoral Regions (DRAMCLR 2019) PB - Atlantis Press SP - 183 EP - 189 SN - 1951-6851 UR - https://doi.org/10.2991/dramclr-19.2019.12 DO - https://doi.org/10.2991/dramclr-19.2019.12 ID - Li2019/11 ER -