| SPATIO-TEMPORAL VARIATION CHARACTERISTICS OF EXTREMELY HEAVY PRECIPITATION FREQUENCY OVER SOUTH CHINA IN THE LAST 50 YEARS |
| |
| 作者姓名： | 陆 虹 陈思蓉 郭 媛 何 慧 徐圣璇 |
| |
| 作者单位： | Climate Center of Guangxi, Nanning 530022 China; |
| |
| 基金项目： | ＂Variations of Extremely Heavy Precipitation and Their Response to Global Climate Change＂, a project in Research Fund for the Science of Tropical Marine and Meteorology （200804）; ＂On the Regional Extremely Heavy Rain in South China Under the Background of Climate Warming, a project in Special China Meteorological Administration Program for Climate Change （CCSF -09-03）; Assessment Report on the Climate Change in the South China Region （CCSF-09-11） |
| |
| 摘 要： | This paper comprehensively studies the spatio-temporal characteristics of the frequency of extremely heavy precipitation events over South China by using the daily precipitation data of 110 stations during 1961 to 2008 and the extremely heavy precipitation thresholds determined for different stations by REOF, trend coefficients, linear trend, Mann-Kendall test and variance analysis. The results are shown as follows. The frequency distribution of extremely heavy precipitation is high in the middle of South China and low in the Guangdong coast and western Guangxi. There are three spatial distribution types of extremely heavy precipitation in South China. The consistent anomaly distribution is the main type. Distribution reversed between the east and the west and between the south and the north is also an important type. Extremely heavy precipitation events in South China mainly occurred in the summer-half of the year. Their frequency during this time accounts for 83.7% of the total frequency. In the 1960s and 1980s, extremely heavy precipitation events were less frequent while having an increasing trend from the late 1980s. Their climatological tendency rates decrease in the central and rise in the other areas of South China, and on average the mean series also shows an upward but insignificant trend at all of the stations. South China＇s frequency of extremely heavy precipitation events can be divided into six major areas and each of them shows a different inter-annual trend and three of the representative stations experience abrupt changes by showing remarkable increases in terms of Mann-Kendall tests.
|
| 关 键 词： | 中国南方 降水资料 时空变化特征 空间分布类型 频率分布 降水事件 气候倾向率 强降水 |
| 修稿时间： | 6/3/2014 12:00:00 AM |
SPATIO-TEMPORAL VARIATION CHARACTERISTICS OF EXTREMELY HEAVY PRECIPITATION FREQUENCY OVER SOUTH CHINA IN THE LAST 50 YEARS |
| |
| LU Hong,CHEN Si-rong,GUO Yuan,HE Hui and XU Sheng-xuan.SPATIO-TEMPORAL VARIATION CHARACTERISTICS OF EXTREMELY HEAVY PRECIPITATION FREQUENCY OVER SOUTH CHINA IN THE LAST 50 YEARS[J].Journal of Tropical Meteorology,2014,20(3):279-288. |
| |
| Authors: | LU Hong CHEN Si-rong GUO Yuan HE Hui and XU Sheng-xuan |
| |
| Institution: | Climate Center of Guangxi, Nanning 530022 China; |
| |
| Abstract: | This paper comprehensively studies the spatio-temporal characteristics of the frequency of extremely heavy precipitation events over South China by using the daily precipitation data of 110 stations during 1961 to 2008 and the extremely heavy precipitation thresholds determined for different stations by REOF, trend coefficients, linear trend, Mann-Kendall test and variance analysis. The results are shown as follows. The frequency distribution of extremely heavy precipitation is high in the middle of South China and low in the Guangdong coast and western Guangxi. There are three spatial distribution types of extremely heavy precipitation in South China. The consistent anomaly distribution is the main type. Distribution reversed between the east and the west and between the south and the north is also an important type. Extremely heavy precipitation events in South China mainly occurred in the summer-half of the year. Their frequency during this time accounts for 83.7% of the total frequency. In the 1960 s and 1980 s, extremely heavy precipitation events were less frequent while having an increasing trend from the late 1980 s. Their climatological tendency rates decrease in the central and rise in the other areas of South China, and on average the mean series also shows an upward but insignificant trend at all of the stations. South China's frequency of extremely heavy precipitation events can be divided into six major areas and each of them shows a different inter-annual trend and three of the representative stations experience abrupt changes by showing remarkable increases in terms of Mann-Kendall tests. |
| |
| Keywords: | South China frequency of extremely heavy precipitation events spatio-temporal characteristics abrupt change |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《热带气象学报(英文版)》浏览原始摘要信息 |
| 点击此处可从《热带气象学报(英文版)》下载免费的PDF全文 |
