延安市1980—2010年气温和降水的年际变化特征

杨强; 何立恒; 鲍其胜

doi:10.3969/j.issn.1000-2006.2014.06.034

杨强,何立恒,鲍其胜

南京林业大学学报（自然科学版） ›› 2014, Vol. 38 ›› Issue (06) : 179-183.

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南京林业大学学报（自然科学版） ›› 2014, Vol. 38 ›› Issue (06) : 179-183. DOI: 10.3969/j.issn.1000-2006.2014.06.034

研究简报

延安市1980—2010年气温和降水的年际变化特征

杨强¹,何立恒^1*,鲍其胜²

作者信息 +

Characteristics of annual change in temperature and precipitation in Yan'an region during 1980-2010

YANG Qiang¹, HE Liheng^1*, BAO Qisheng²

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文章历史 +

摘要

选取延安市及周边14个气象站点1980—2010年逐月气象资料,利用自然邻点插值法对气象站点数据进行空间插值,得到延安市的年均气温和降水量,利用趋势分析、小波分析和极端变化分析方法,研究延安市气温和降水量的变化规律。结果表明:1980—2010年间,延安市气候变暖,年际气温持续升高,每10 a递增0.71 ℃,幅度较大; 降水量呈小幅减少趋势,但年际波动较大。研究区气温和降水长周期变化规律存在很大的相似性,但5～10 a短周期变化差异明显,且震荡规律性减弱,相比而言,气温变化较降水量变化的稳定性强,变化规律更有序。

Abstract

The objective of this paper was to find the change patterns of average annual temperature and amount of precipitation from 1980 to 2010 in Yan'an region. Monthly meteorological data between 1980 and 2010 from 14 weather stations including the Yan'an region and the surroundings was used to do spatial interpolation to obtain the annual precipitation and average annual temperature by natural neighbor method. Trend analysis, wavelet analysis and extreme change analysis were employed to find the change patterns of temperature and amount of precipitation. Results showed that the annual temperature increased 0.71 ℃ in the past every 10 years. While the amount of precipitation declined slightly with the more annual fluctuate. There was largely comparability between temperature and precipitation in the long period run of changing patterns, but significant difference existed in short period changing patterns in terms of 5-10 years data. On the contrary, the temperature changing pattern was more stable and orderable than the precipitation.

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杨强,何立恒,鲍其胜. 延安市1980—2010年气温和降水的年际变化特征[J]. 南京林业大学学报（自然科学版）. 2014, 38(06): 179-183 https://doi.org/10.3969/j.issn.1000-2006.2014.06.034

YANG Qiang, HE Liheng, BAO Qisheng. Characteristics of annual change in temperature and precipitation in Yan'an region during 1980-2010[J]. Journal of Nanjing Forestry University (Natural Sciences Edition）. 2014, 38(06): 179-183 https://doi.org/10.3969/j.issn.1000-2006.2014.06.034

中图分类号： P468

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基金

收稿日期:2014-01-26 修回日期:2014-09-08
基金项目:国土资源公益性行业科研专项项目(201211028-6); 江苏高校优势学科建设工程资助项目(PAPD)
第一作者:杨强,讲师,博士。*通信作者:何立恒,副教授。E-mail: hlh8046@njfu.com.cn
引文格式:杨强,何立恒,鲍其胜. 延安市1980—2010年气温和降水的年际变化特征[J]. 南京林业大学学报:自然科学版,2014,38(6):179-183.