气候变化领域集成服务门户(CCPortal): 1951-2012年中国大陆0.025°*0.025°高分辨率月气温和降水量格点数据集的建立及其初步应用

CCPortal

	*1951-2012年中国大陆0.025°0.025°高分辨率月气温和降水量格点数据集的建立及其初步应用**
其他题名	Construction and application of monthly air temperature and precipitation gridded datasets with high resolution (0.025°*0.025°) over China during 1951·2012
	吴娴; 黄伟; 陈发虎
发表日期	2014
ISSN	0455-2059
卷号	50 期号:2 页码:213-220
中文摘要	鉴于中国缺少高空间分辨率且时间跨度较长的格点气候数据集,基于国家气象局气象信息中心发布的中国753个台站地面气候月值数据集,使用国际常用的ANUSPLIN软件进行空间插值,建立了1951-2012年中国月值气温和降水量的空间超高分辨率(0.025°0.025°,约2.8 km2.8 km)格点数据集(简称LZU0025).该数据集与较高分辨率(0.5°*0.5°)的University of Delaware(UDEL), Climate Prediction Center(CPC)全球格点数据集在刻画中国温度和降水时空变化上具有一致性.所建立的格点数据集还可以更好地刻画中国复杂地形下的气温和降水量的时空特征,具有超高空间分辨率和较长时间序列的优点.依据本文建立的高分辨率格点数据集,发现1951-1980年间中国大陆气温最低且以波动为主,20世纪80年代开始气温快速升高,近10年来气温最高但增温趋缓.全国年平均降水量变化无明显趋势,但受西风环流控制的我国西北干旱区降水有增加趋势,而受东亚季风环流控制的华北地区降水有明显减少趋势.
英文摘要	In view of the small amount of datasets with low resolution and of short-term duration in China, the monthly air temperature and precipitation gridded datasets (LZU0025 in short) were constructed here based on the climatic monthly dataset from China Meteorological Administration using the software ANUSPLIN. This dataset covers the period from 1951 to 2012 with a horizontal resolution of 0.025° latitude by 0.025°latitude over China. And our test analysis was also compared with the results obtained by Climate Prediction Center (CPC) and University of Delaware (UDEL) dataset. The results suggested that air temperature and precipitation over China from LZU0025 dataset exhibited coherent variations compared to the UDEL and CPC, and it could well describe the spatial and temporal characteristics of temperature and precipitation under the complex topography. Additionally, our results that were based on LZU0025 showed that the temperature over China had been changing from low level in the early years (1951-1980) to high level in recent decades (after 1980), suggesting that the climate of China has been changing from cold to warm during the past 60 years. There was no significant change in annual precipitation over entire China whereas precipitation controlled by the westerly wind in the dry northwestern regions has increased, and that controlled by Asian monsoons in Northern China decreased.
关键词	气温降水量高分辨率格点数据
英文关键词	AUNSPLIN;ANUSPLIN;temperature;precipitation;high resolution;gridded dataset
语种	中文
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
CSCD记录号	CSCD:5299627
来源期刊	兰州大学学报. 自然科学版
来源机构	兰州大学 ; 中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/1584
推荐引用方式 GB/T 7714	吴娴,黄伟,陈发虎. 1951-2012年中国大陆0.025°*0.025°高分辨率月气温和降水量格点数据集的建立及其初步应用[J]. 兰州大学, 中国科学院青藏高原研究所,2014,50(2):213-220.
APA	吴娴,黄伟,&陈发虎.(2014).1951-2012年中国大陆0.025°*0.025°高分辨率月气温和降水量格点数据集的建立及其初步应用.兰州大学学报. 自然科学版,50(2),213-220.
MLA	吴娴,et al."1951-2012年中国大陆0.025°*0.025°高分辨率月气温和降水量格点数据集的建立及其初步应用".兰州大学学报. 自然科学版 50.2(2014):213-220.