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敦煌近七十年温度与降水序列的多窗谱分析和小波分析
  • ISSN号：1000-0240
  • 期刊名称：《冰川冻土》
  • 时间：0
  • 分类：P467[天文地球—大气科学及气象学] TM711[电气工程—电力系统及自动化]
  • 作者机构：[1]兰州大学资源环境学院, [2]西部环境教育部重点实验室,甘肃兰州730000
  • 相关基金：国家自然科学基金项目1405711691、创新群体项目（40721061）和“111”硕目（1306026）共同资助.
作者： 王晾晾[1,2], 靳立亚[1,2]
关键词： 敦煌, 多窗谱分析, 小波分析
中文摘要：

利用多窗谱分析方法以及小波分析方法，对敦煌近70年年平均温度、年降水量、冬夏两季月平均温度以及月平均降水量序列进行多种信号的检测，着重分析敦煌近70年温度与降水变化的演变特征，初步研究显著年代振荡信号的传播特征。结果表明，该区域的气候变化存在显著的2年～3年的准周期。1970年以后敦煌的气温呈现明显的上升的趋势，其中夏季月平均温和年平均温度上升的幅度在逐年增大，而冬季月平均温度上升的幅度在逐年减小，夏季温度变化对年平均温度的影响大于冬季。夏季月平均降水序列和年降水量序列呈几乎完全相同的变化趋势和幅度，冬季月平均降水变化滞后于年降水量序列的变化。

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期刊信息
  • 《冰川冻土》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学院 寒区旱区环境与工程研究所
  • 主办单位:中国地理学会 中国科学院寒区旱区环境与工程研究所
  • 主编：程国栋
  • 地址：兰州市天水中路8号
  • 邮编：730000
  • 邮箱：edjgg@lzb.ac.cn
  • 电话：0931-8260767
  • 国际标准刊号：ISSN：1000-0240
  • 国内统一刊号：ISSN：62-1072/P
  • 邮发代号:54-29
  • 获奖情况:
  • 中国自然科学核心期刊,第二届全国优秀地理期刊,甘肃省优秀地理期刊,中国期刊方阵“双效”期刊
  • 国内外数据库收录:
  • 美国地质文献预评数据库,美国剑桥科学文摘,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:17974