| FY-2C资料进行云顶粒子热力学相态分析应用初探 |
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| 引用本文： | 韦春霞,黎云,邓丽玲. FY-2C资料进行云顶粒子热力学相态分析应用初探[J]. 云南地理环境研究, 2011, 23(2): 105-110 |
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| 作者姓名： | 韦春霞 黎云 邓丽玲 |
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| 作者单位： | 河池市气象局,广西,河池,547000 |
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| 摘 要： | 利用"9210"系统下发的FY-2C图像资料数字化信息,依据高云、中云、低云在可见光波段和红外波段具有不同的光谱特性,结合水汽通道和红外通道对密蔽云系的辐射特性,分析了2008年华南低温雨雪冰冻期间红外、水汽、可见光3个通道云系的辐射特征,发现了有利于识别水云、冰云和冰水混合云的方法。同时指出,对于密蔽云系,当水汽亮温值大于0℃而红外亮温值小于0℃时,云顶粒子的热力学相态为过冷却液态水的可能性大于冰晶结构的可能性。根据上述辐射特性分析制定了云类的识别方法。实例分析结果表明这种方法能较好地分离出易产生冻雨的云体中缺少成冰核的过冷却液态水云。
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| 关 键 词： | FY-2C卫星 遥感监测 华南 云顶粒子 相态 |
FY-2C DATA ANALYSIS OF CLOUD PARTICLE PHASE APPLICATION OF THERMODYNAMICS |
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| WEI Chun-xia,LI Yun,DENG Li-ling. FY-2C DATA ANALYSIS OF CLOUD PARTICLE PHASE APPLICATION OF THERMODYNAMICS[J]. Yunnan Geographic Environment Research, 2011, 23(2): 105-110 |
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| Authors: | WEI Chun-xia LI Yun DENG Li-ling |
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| Affiliation: | WEI Chun-xia,LI Yun,DENG Li-ling(Hechi Meteorological Bureau,Hechi 547000,Guangxi,China) |
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| Abstract: | Use of 9210 system issued FY-2C image data of digital information,based on its high cloud,cloud,low cloud in the visible and infrared bands have different spectral characteristics,combined with water vapor channel and the infrared channel on the dense cloud of radiation system characteristics of South China in 2008 during the snow and ice infrared,water vapor,three-channel visible radiation characteristics of cloud systems,found in favor of the recognition Ectocarpus,ice clouds and cloud ice mixing method.A... |
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| Keywords: | FY-2C Satellite remote sensing South cloud particles phase |
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