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MODIS多光谱云相态识别技术的应用研究

周著华 白洁 刘健文 纪飞 齐琳琳 李玮

周著华, 白洁, 刘健文, 等. MODIS多光谱云相态识别技术的应用研究. 应用气象学报, 2005, 16(5): 678-684..
引用本文: 周著华, 白洁, 刘健文, 等. MODIS多光谱云相态识别技术的应用研究. 应用气象学报, 2005, 16(5): 678-684.
Zhou Zhuhua, Bai Jie, Liu Jianw en, et al. The application of cloud phase recognition by MODIS spectral data. J Appl Meteor Sci, 2005, 16(5): 678-684.
Citation: Zhou Zhuhua, Bai Jie, Liu Jianw en, et al. The application of cloud phase recognition by MODIS spectral data. J Appl Meteor Sci, 2005, 16(5): 678-684.

MODIS多光谱云相态识别技术的应用研究

THE APPLICATION OF CLOUD PHASE RECOGNITION BY MODIS SPECTRAL DATA

  • 摘要: 介绍了卫星多光谱云相态识别的基本原理, 并给出了EOS/ MODIS云相态识别的流程。针对简单和复杂云场, 利用个例并结合无线电探空资料与MODI S三通道合成图肯定了多光谱云相态识别的合理性和实际效果。文中对几个特定天气系统(西南涡旋和西太平洋台风)下大面积云场相态分析的结果表明:多光谱云相态识别技术有一定应用价值, 且需要引入可见光技术来减少红外谱段对多层云覆盖和薄卷云的相态分析误差。
  • 图  1  大气窗区冰水粒子复折射指数虚部的变化[12]

    (底部箭头所指为MODIS通道29, 31,32中心波长所在处)

    图  2  (a)2002年5月4日03 :00 MODI S通道31麦卡脱投影图像(b)对应(a)的00:00 850 hPa位势高度诊断场

    图  3  区域1(+形点)和区域4(□形点)点聚图

    图  4  区域2三通道数据点聚图

    (红色圆形为透明冰云,黑方块为非透明冰云,蓝方块为非透明水云,青色圆圈为透明水云,绿色方块为混合场,黄色方块为晴空区)

    图  5  56294号探空站2002年5月4日00:00探空曲线

    图  6  区域10亮温差点聚图(a)(说明同图4)和云相态反演结果(b)(说明同图7)

    图  7  图2中对应区域云相态分析结果

    红色为水云区,蓝色为冰云区,灰色为混合云场,黄色为晴空区

    图  8  2002年6月10日02:02西太平洋台风(a)及其云顶相态公析结果(b)(说明同图7)

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出版历程
  • 收稿日期:  2003-12-23
  • 修回日期:  2005-04-11
  • 刊出日期:  2005-10-31

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