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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >Microwave polarimetric measurements of the sea surface brightness temperature from a blimp during the Coastal Ocean Probing Experiment (COPE)
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Microwave polarimetric measurements of the sea surface brightness temperature from a blimp during the Coastal Ocean Probing Experiment (COPE)

机译：在沿海海洋探测实验（COPE）期间，对飞艇的海面亮度温度进行微波极化测量

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摘要

Experimental data obtained with a microwave dual-frequency radiometer at 23.87 and 31.65 GHz and a polarimeter at 37.0 GHz installed on a blimp during the Coastal Ocean Probing Experiment in 1995 are analyzed. Observations of the downwelling atmospheric radiation as a function of angle were used to achieve a highly accurate absolute calibration. The dependence of the sea surface brightness temperature on nadir and azimuthal angles is considered. The experimental data are compared with theoretical calculations based on several models of sea wave spectra. Models proposed by Romeiser et al. [1997] and Elfouhaily et al. [1997] fit well to the COPE azimuthal measurements and data averaged over azimuthal angle are in between of values predicted by spectrum models by Apel [1994] and Elfouhaily et al. [1997]. The conclusion is made about high sensitivity of the polarized radiometric measurements to parameters of gravity-capillary spectrum. [References: 49]
机译：分析了在1995年的“沿海海洋探测实验”期间，使用安装在飞艇上的23.87和31.65 GHz微波双频辐射计以及37.0 GHz偏振计获得的实验数据。下流大气辐射随角度变化的观测值被用来实现高度精确的绝对校准。考虑了海面亮度温度对最低点和方位角的依赖性。将实验数据与基于几种海浪光谱模型的理论计算进行了比较。 Romeiser等人提出的模型。 （1997年）和Elfouhaily等人。 [1] [1997]非常适合COPE方位角测量，并且在方位角上平均的数据介于Apel [1994]和Elfouhaily等人通过频谱模型预测的值之间。 [1997]。结论是偏振辐射测量对重力毛细管光谱参数具有很高的敏感性。 [参考：49]

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