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小尺度重力波引起夜光云反照率变化的统计特征

郜海阳 张祖熠 卜令兵 霍朝阳 王震 朱红

郜海阳, 张祖熠, 卜令兵, 霍朝阳, 王震, 朱红. 小尺度重力波引起夜光云反照率变化的统计特征[J]. 空间科学学报, 2017, 37(1): 82-93. doi: 10.11728/cjss2017.01.082
引用本文: 郜海阳, 张祖熠, 卜令兵, 霍朝阳, 王震, 朱红. 小尺度重力波引起夜光云反照率变化的统计特征[J]. 空间科学学报, 2017, 37(1): 82-93. doi: 10.11728/cjss2017.01.082
GAO Haiyang, ZHANG Zuyi, BU Lingbing, HUO Chaoyang, WANG Zhen, ZHU Hong. Statistical Characteristics of Albedo Variation in Noctilucent Clouds Induced by Small-scale Gravity Waves[J]. Journal of Space Science, 2017, 37(1): 82-93. doi: 10.11728/cjss2017.01.082
Citation: GAO Haiyang, ZHANG Zuyi, BU Lingbing, HUO Chaoyang, WANG Zhen, ZHU Hong. Statistical Characteristics of Albedo Variation in Noctilucent Clouds Induced by Small-scale Gravity Waves[J]. Journal of Space Science, 2017, 37(1): 82-93. doi: 10.11728/cjss2017.01.082

小尺度重力波引起夜光云反照率变化的统计特征

doi: 10.11728/cjss2017.01.082
基金项目: 

国家自然科学基金项目(41304124,41305032),江苏省基础研究计划项目(BK20141480)和南京信息工程大学校科研启动费资助项目(2013X027)共同资助

详细信息
    通讯作者:

    郜海阳,E-mail:gaohy@nuist.edu.cn

  • 中图分类号: P356

Statistical Characteristics of Albedo Variation in Noctilucent Clouds Induced by Small-scale Gravity Waves

  • 摘要: 利用AIM卫星搭载的CIPS云成像探测器获得的云图数据,提取2008-2009年南北半球共6664个小尺度重力波(波长10~150km)个例,通过重力波区域与背景云层反照率变化值的对比分析,研究重力波引起云层反照率的变化特征.结果表明,重力波引起的反照率变化值以正值为主,最大平均值4.48×10-6sr-1出现在南半球降交轨道.反照率变化值与IWC变化值正相关,相关系数均在0.85以上.重力波引起的反照率变化呈现出很强的纬度和时间依赖性,且几乎均为正值.反照率变化值在中期阶段(冬/夏至日之后的50天)的高纬地区(>70°)更大,但在中期以外始末阶段的低纬地区(<70°)逐渐变小,甚至开始出现负值.随着背景云层的增强,反照率平均值呈线性增大,小尺度重力波能够引起背景云层反照率约14.6%~28.8%的变化量.当重力波引起的反照率周期性变化的振幅逐渐增大时,反照率变化值也线性增大,变化率约为0.909%~1.194%.南半球的变化率整体比北半球稍小,这与背景大气条件的差异有关

     

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出版历程
  • 收稿日期:  2015-08-10
  • 修回日期:  2016-03-01
  • 刊出日期:  2017-01-15

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