Observed trends in diurnal temperature range over Nigeria

论文摘要

本文基于站点观测及再分析资料,考察了1979–2013年期间尼日利亚不同地区温度日较差(DTR)的变化趋势及其可能原因。结果表明,尼日利亚北部萨赫勒地区(NSR)日最低温的增温趋势显著大于日最高温增加的趋势,导致该区域DTR呈显著下降趋势(–0.34°C/10年);而在南部几内亚湾地区(NGC),区域平均日最高温度增加趋势略大于最低温度的增加趋势,导致该区域平均DTR呈微弱上升趋势(0.01°C/10年)。NSR区域显著的DTR下降趋势与该地区降水量呈长期增加趋势密切相关,而NGC区域DTR的增加趋势则可归因于该地区云量存在的长期减少趋势。

论文目录

• 1. Introduction
• 2. Study area, data, and methods
•   2.1. Study area and data
•   2.2. Methods
• 3. Results and discussion
•   3.1. Spatial difference in DTR trends over Nigeria
•   3.2. Possible reason for the regional difference in the DTR trend over Nigeria
• 4. Conclusions
• Disclosure statement

文章来源

类型: 期刊论文

作者: DIKE Victor Nnamdi,LIN Zhaohui,WANG Yuxi,NNAMCHI Hyacinth

关键词: 温度日较差,日最高,最低温度,趋势,尼日利亚

来源: Atmospheric and Oceanic Science Letters 2019年02期

年度: 2019

分类: 基础科学

专业: 气象学

单位: International Center for Climate and Environment Sciences, Institute of Atmospheric Physics, Chinese Academy of Sciences,College of Earth and Planetary Sciences, University of Chinese Academy of Sciences

基金: jointly supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(CAS)[grant number XDA19030403],the National Natural Science Foundation of China [grant number 41575095],the CAS ‘Belt and Road Initiatives’ Program on International Cooperation [grant number 134111KYSB20160010],Victor Nnamdi DIKE acknowledges support from the CAS–TWAS(The World Academy of Sciences)President Fellowship,Hyacinth NNAMCHI is supported by the International Federation for Science(W,4849)

分类号: P423

页码: 131-139

总页数: 9

文件大小: 1393K

下载量: 12