Research on trend of warm-humid climate in Central Asia

3rd International Symposium on Earth Observation for Arid and Semi-Arid Environments

Gong, Zhi^1,3,4 ; Peng, Dailiang^2 ; Wen, Jingyi^1,3 ; Cai, Zhanqing^1,3,4 ; Wang, Tiantian^1,3,4 ; Hu, Yuekai^1 ; Ma, Yaxin^1 ; Xu, Junfeng^1,3

Institute of Remote Sensing and Earth Sciences, Hangzhou Normal University, Hangzhou

311121, China^1

Key Laboratory of Digital Earth Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing

100094, China^2

Zhejiang Provincial Key Laboratory of Urban Wetlands and Regional Change, Hangzhou Normal University, Hangzhou

311121, China^3

College of Life Environmental Sciences, Hangzhou Normal University, Hangzhou

311121, China^4

关键词: Anneal temperatures;    Annual precipitation;    Average annual precipitation;    Economic development;    Regional climate changes;    Remote sensing data;    Warm and humid conditions;    Warm humid climate;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/74/1/012017/pdf
DOI  :  10.1088/1755-1315/74/1/012017

来源: IOP

【 摘 要 】

Central Asia is a typical arid area, which is sensitive and vulnerable part of climate changes, at the same time, Central Asia is the Silk Road Economic Belt of the core district, the warm-humid climate change will affect the production and economic development of neighboring countries. The average annual precipitation, average anneal temperature and evapotranspiration are the important indexes to weigh the climate change. In this paper, the annual precipitation, annual average temperature and evapotranspiration data of every pixel point in Central Asia are analyzed by using long-time series remote sensing data to analyze the trend of warm and humid conditions. Finally, using the model to analyzed the distribution of warm-dry trend, the warm-wet trend, the cold-dry trend and the cold-wet trend in Central Asia and Xinjiang area. The results showed that most of the regions of Central Asia were warm-humid and warm-dry trends, but only a small number of regions showed warm-dry and cold-dry trends. It is of great significance to study the climatic change discipline and guarantee the ecological safety and improve the ability to cope with climate change in the region. It also provide scientific basis for the formulation of regional climate change program. The first section in your paper.