高原气象

高原气象 >

2016 , Vol. 35 >Issue 1: 55 - 63

DOI: https://doi.org/10.7522/j.issn.1000-0534.2015.00075

论文

藏北高原地表温度对气候变化响应的初步分析

  • 黄芳芳 ,
  • 马伟强 ,
  • 李茂善 ,
  • 马耀明
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  • 中国科学院寒区旱区环境与工程研究所寒旱区陆面过程与气候变化重点实验室, 兰州 730000;2. 中国科学院大学, 北京 100049;3. 中国科学院青藏高原研究所, 北京 100101

收稿日期: 2015-03-12

  网络出版日期: 2016-02-28

基金资助

国家自然科学基金项目(41375009,41275010,41522501,91337212);中国科学院\!百人计划\"项目;中国科学院对外合作重点项目(GJHZ1207)

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Analysis on Responses of Land Surface Temperature on the Northern Tibetan Plateau to Climate Change

  • HUANG Fangfang ,
  • MA Weiqiang ,
  • LI Maoshan ,
  • MA Yaoming
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  • Key Laboratory for Land Process and Climate Change in Cold and Arid Regions, Cold and Arid Region Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China

Received date: 2015-03-12

  Online published: 2016-02-28

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摘要

地表温度是地-气相互作用过程中的一个重要参数。利用藏北高原地区那曲高寒气候环境观测研究站地面观测资料,对2001-2012年藏北高原地表温度的年际变化和年内变化规律及其对气候变化的响应特征进行了分析。结果表明,近12年藏北高原地表温度呈缓慢上升趋势,其中冬季上升最快;地气温差在春季最大,且下垫面状况会影响地气温差的大小。地表温度年内变化和日变化特征明显,且气温的变化相对于地表温度存在一定时间的滞后响应。利用气温、风速、土壤湿度分别与地表温度建立关系模型,得出地表温度拟合值与实测值的误差在0~2.0℃之间波动,这表明地表温度对气温、风速、土壤湿度的变化响应明显,其中,对气温变化全年响应明显,冬、春季对风速响应明显,夏季对土壤湿度的响应特征突出。

关键词： 地表温度; 气候变化; 草甸下垫面; 藏北高原

本文引用格式

黄芳芳 , 马伟强 , 李茂善 , 马耀明 . 藏北高原地表温度对气候变化响应的初步分析[J]. 高原气象, 2016 , 35(1) : 55 -63 . DOI: 10.7522/j.issn.1000-0534.2015.00075

Abstract

The land surface temperature(Ts) plays an important role on the interaction between atmosphere and ground.The ground observational data from Nagqu Station of Plateau Climate and Environment(NaPlaCE) in the Northern Tibetan Plateau from 2001 to 2012 were used to analyze annual and inter-annual changes and the response to climate changes by statistical analysis method.The result shows that the Ts on the Northern Tibetan Plateau presents a rising tendency in recent years,especially in winter.The difference of Ts and air temperature(Ta) has the maximum in spring,and its value is influenced by the underlying surface.The annual and diurnal variation of the Ts and Ta are obvious,and the Ta variation lags behind Ts.The relationship models based on the Ta,wind speed,soil moisture and Ts demonstrate that the error between the estimated and measured value of Ts fluctuates from 0℃ to 2.0℃,indicating that Ts and Ta,wind speed,soil moisture are well related to each other.Particularly,the response of Ts to Ta is obvious in all year,the variation of wind speed have a great influence on the changes of Ts in spring and winter,and the relationship between Ts and soil moisture is notable in summer.

Key words： Land surface tempera; Climate changes; Grassy marshland; The Northern Tibetan

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