腾格里沙漠边缘地区近50a气温、降水变化特征分析
he characteristics of temperature and precipitation in recent 50a of the edge of the Tengger Desert
利用腾格里沙漠边缘地区的7个气象站1960-2010年逐月平均气温、降水量资料,运用一元线性回归、趋势系数分析、5年滑动平均、50%局部加权平均和小波分析方法,分析了近50a来腾格里沙漠边缘地区气候变化趋势。结果表明:近50a来,腾格里沙漠边缘地区各站气温变化具有一定的一致性,气温显著升高,年平均气温升高速率为0.30-0.43℃/10a,高于同期全国及西北地区东部平均升温速率。各站降水量变化波动较大,具有一定的差异性,降水量趋势变化不明显。气温、降水量变化均表现出一定时间尺度上的周期性。
Based on the monthly average temperature and precipitation data in 1960-2010 from 7 stations around the Tngger Desert, use the linear regression, the trend factor analysis, 5-year moving average, 50% of the locally weighted average and wavelet analysis, analysis climate change trends in recent 50a of the Tengger desert. The results show, in recent 50a, the Tengger Desert region has a certain consistency of temperature change, the temperature increased significantly, the annual average temperature increase rate of 0.30-0.43 ℃ / 10a, higher than the national and the eastern part of Northwest. the trend of precipitation was not obvious. Temperature and precipitation have shown a certain time scale periodicity.
韩宇翔、程弘毅
大气科学(气象学)自然地理学环境科学理论
气温降水趋势分析小波分析腾格里沙漠
emperaturePrecipitationThe trend analysisThe wavelet analysisThe Tengger Desert
韩宇翔,程弘毅.腾格里沙漠边缘地区近50a气温、降水变化特征分析[EB/OL].(2012-02-10)[2025-08-06].http://www.paper.edu.cn/releasepaper/content/201202-232.点此复制
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