青藏高原四季降水变化特征分析

长江流域资源与环境 >> 2007, Vol. 16 >> Issue (4): 537-537.

青藏高原四季降水变化特征分析

黄一民|章新平

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-07-21

CHARACTER ANALYSIS IN VARIATION OF SEASONAL PRECIPITATION OVER THE TIBETAN PLATEAU

HUANG Yimin, ZHANG Xinping

Received:1900-01-01 Revised:1900-01-01 Online:2007-07-21

摘要/Abstract

摘要：

利用青藏高原87个地面气象台站41年（1960～2000年）的月降水资料，并在Arcgis 9.0中通过Kriging插值方法对少数站点的缺测值进行了插补，用线性回归方法研究了高原四季降水量的变化趋势及区域上的差异。为了保证本研究的完整性，对高原年降水也做了相应分析。结果表明：（1）高原冬春两季降水量呈显著增加趋势。冬季雅鲁藏布江下游、春季高原东北部为降水减少区，高原其他区域均表现为增加；夏秋两季降水量基本保持不变，但夏季高原中部和川西降水减少，高原南部和北部降水表现为增加；秋季高原中部、南部降水增加，川西降水减少。（2）高原年降水呈显著增加趋势。在区域上高原南部大致以东经102度为界，该线以东降水减少，以西降水增加，且降水增加区域表现出随纬度的增加而递减的特征。高原中部、北部的年降水基本保持不变或微弱增加。

关键词: 青藏高原, 四季降水, 区域差异

Abstract:

In this paper，the trend in change of seasonal precipitation and its regional difference in the Tibet Plateau were analyzed for the last 41 years on basis of the longterm precipitation data at 87 meteorological stations in the Plateau.Missing data were interpolated by using Kriging interpolation with the ArcGIS 90.To make the research be complete，annual precipitation in the plateau was also analyzed.The results showed that there is an obvious increase in precipitation during spring and winter，and no such increase in summer and autumn.Decreasing trend of precipitation occurs in the lower reaches of the Yarlung Zangbo River in winter，northeast Tibetan Plateau in spring，central Tibetan Plateau in summer，and west Sichuan Province in summer and autumn.And increasing trend of precipitation appears in the remaining Plateau of decreasing region in winter and spring，south and north Tibetan Plateau in summer，and central and south Tibetan in autumn.It was found that there is an obvious increasing trend for the annual precipitation in the Plateau.There is a boundary at about 102°E in south Tibetan Plateau，with decreasing trend in east of the boundary and increasing trend in the west of it.As the latitude increases，the increasing trend weakens.The annual precipitation showed no obvious trend in central and north Tibetan Plateau.

Key words: Tibet Plateau, seasonal precipitation, regional difference

黄一民,章新平. 青藏高原四季降水变化特征分析[J]. 长江流域资源与环境, 2007, 16(4): 537-537.

HUANG Yimin, ZHANG Xinping. CHARACTER ANALYSIS IN VARIATION OF SEASONAL PRECIPITATION OVER THE TIBETAN PLATEAU[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2007, 16(4): 537-537.

参考文献

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

[1]	李奋生, 赵国华, 李勇, 梁明剑, 闫亮, 颜照坤, 李敬波, 郑立龙. 青藏高原东缘的隆升及其水系的响应[J]. 长江流域资源与环境, 2016, 25(03): 420-428.
[2]	李邹, 林伟立, 徐晓斌, 张万诚. 香格里拉区域大气本底站地面臭氧浓度的变化特征[J]. 长江流域资源与环境, 2015, 24(08): 1412-1417.
[3]	华, 维, 范广洲, 陈权亮, 周定文. 青藏高原年日照时数的年代际变化趋势[J]. 长江流域资源与环境, 2009, 18(12): 1149-.
[4]	杨军,刘俊卿,强德厚. 探索性数据分析在西藏气候变化趋势研究中的应用[J]. 长江流域资源与环境, 2007, 16(4): 543-543.
[5]	吕新苗,郑度. 气候变化对长江源地区高寒草甸生态系统的影响[J]. 长江流域资源与环境, 2006, 15(5): 603-607.