| 江苏省近45a极端气候的变化特征 |
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| 引用本文： | 潘敖大,范苏丹,陈海山.江苏省近45a极端气候的变化特征[J].气象科学,2010,30(1):87-92. |
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| 作者姓名： | 潘敖大 范苏丹 陈海山 |
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| 作者单位： | 1. 江苏省气象局,南京,210008;南京信息工程大学,大气科学学院,南京210044
2. 南京信息工程大学,大气科学学院,南京210044;南京信息工程大学,气象灾害省部共建教育部重点实验室,南京,210044 |
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| 基金项目： | 国家科技支撑计划课题，江苏省"六大人才高峰"计划项目 |
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| 摘 要： | 利用江苏省35个测站1960—2004年45 a的逐日最高温度、最低温度、日降水量资料集,分析了近45 a江苏省极端高温、极端低温以及极端降水的基本变化特征。结果表明:(1)多年平均年极端高温的空间分布表现为西高东低,而极端低温则表现为自北向南的显著增加,极端降水的发生频次自南向北逐渐减少;(2)极端高温在江苏中部以及南部大部分地区有上升趋势,而西北地区则有弱的下降趋势;全省极端低温表现为显著的升高趋势;极端降水频次在南部地区有增加的趋势,北部减少趋势,中部则无变化趋势。(3)江苏极端高温、低温和极端降水的年际和年代际变化具有区域性差异,其中极端降水频次变化的区域性差异最为明显。
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| 关 键 词： | 极端高温 极端低温 极端降水 时空变化特征 |
| 收稿时间： | 2009/1/21 0:00:00 |
Characteristic of extreme climate change over Jiangsu Province in the last 45 a |
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| Pan Aoda,Fan Sudan,Chen Haishan.Characteristic of extreme climate change over Jiangsu Province in the last 45 a[J].Scientia Meteorologica Sinica,2010,30(1):87-92. |
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| Authors: | Pan Aoda Fan Sudan Chen Haishan |
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| Institution: | Pan Aoda 1,2 Fan Sudan 2,3 Chen Haishan 2,3 (1 Jiangsu Meteorological Bureau,Nanjing 210008,China)(2 College of Atmospheric Sciences,Nanjing University of Information Science & Technology,Nanjing 210044,China)(3 key Laboratory of Meteorological Disaster of Ministry of Education,China) |
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| Abstract: | By using 1960-2004 daily maximum temperature, minimum temperature and daily rainfall data of 35 stations over Jiangsu Province, the basic features of extreme climate events such as extreme maximum temperature, extreme minimum temperature and extreme precipitation events in the last 45 a are investigated. Results show that: (1)The climatological annual extreme high temperature in west part of Jiangsu are higher than that in the east, but the extreme low temperatures increase south-ward evidently. The frequency of the extreme precipitation events decrease from the north to the south.(2)Increasing trends of the extreme high temperature are found over both the central and southern regions, but a weak decreasing trend in north-western region. The extreme low temperatures increase significantly over most regions. Increasing and decreasing trends are found in the frequencies of the extreme precipitation events over the south and north parts respectively, but no evident long-term trend in central Jiangsu.(3)Regional differences exist in the inter-annual and inter-decadal varibilities of the extreme high, low temperatures and extreme precipitation events. |
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| Keywords: | Extreme high temperature Extreme low temperature Extreme precipitation Temporal and spatial distribution |
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