Retrieval of Microwave Surface Emissivities at TMI Frequencies in Shouxian

HONG Gang; Georg HEYGSTER; Klaus KUNZI; LI Wanbiao; ZHU Yuanjing; ZHAO Bolin

doi:10.1007/s00376-003-0011-x

Impact Factor: 5.8

Volume 20 Issue 2

Mar. 2003

Article Contents

Article > ADVANCES IN ATMOSPHERIC SCIENCES > 2003 > 20(2): 253-259

Retrieval of Microwave Surface Emissivities at TMI Frequencies in Shouxian

1.
Institute of Environmental Physics, University of Bremen, Post-box 330440 28334, Bremen, Germany;Department of Atmospheric Sciences, School of Physics, Peking University, Beijing 100871,Institute of Environmental Physics, University of Bremen, Post-box 330440 28334, Bremen, Germany,Institute of Environmental Physics, University of Bremen, Post-box 330440 28334, Bremen, Germany,Department of Atmospheric Sciences, School of Physics, Peking University, Beijing 100871,Department of Atmospheric Sciences, School of Physics, Peking University, Beijing 100871,Department of Atmospheric Sciences, School of Physics, Peking University, Beijing 100871

doi: 10.1007/s00376-003-0011-x

Abstract
References
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Abstract:
Using a microwave radiative transfer model, atmospheric sounding profiles, satellite brightness temperatures, and some surface observed measurements under cloud-free conditions, surface emissivities at the frequencies of TRMM/TMI (Tropical Rainfall Measuring Mission Microwave Imager) at Shouxian in HUBEX (Huaihe River Basin Energy and Water Cycle Experiment) are retrieved. Compared to the microwave surface emissivities with changing conditions of the surface, it is found that the microwave emissivities have some sensitive variability with the conditions of the surface, and the variability is reasonable. In the calculation, the surface air temperatures are assumed to equal the surface skin temperatures, and only the emissivity at Shouxian is calculated; the calculation of the emissivities over the region of HUBEX needs more measurements.
- microwave surface emissivities,
- TRMM/TMI
References

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Manuscript History

Manuscript received: 10 March 2003

Manuscript revised: 10 March 2003

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Retrieval of Microwave Surface Emissivities at TMI Frequencies in Shouxian

1. Institute of Environmental Physics, University of Bremen, Post-box 330440 28334, Bremen, Germany;Department of Atmospheric Sciences, School of Physics, Peking University, Beijing 100871,Institute of Environmental Physics, University of Bremen, Post-box 330440 28334, Bremen, Germany,Institute of Environmental Physics, University of Bremen, Post-box 330440 28334, Bremen, Germany,Department of Atmospheric Sciences, School of Physics, Peking University, Beijing 100871,Department of Atmospheric Sciences, School of Physics, Peking University, Beijing 100871,Department of Atmospheric Sciences, School of Physics, Peking University, Beijing 100871

Manuscript received: 2003-03-10
Manuscript revised: 2003-03-10

Abstract: Using a microwave radiative transfer model, atmospheric sounding profiles, satellite brightness temperatures, and some surface observed measurements under cloud-free conditions, surface emissivities at the frequencies of TRMM/TMI (Tropical Rainfall Measuring Mission Microwave Imager) at Shouxian in HUBEX (Huaihe River Basin Energy and Water Cycle Experiment) are retrieved. Compared to the microwave surface emissivities with changing conditions of the surface, it is found that the microwave emissivities have some sensitive variability with the conditions of the surface, and the variability is reasonable. In the calculation, the surface air temperatures are assumed to equal the surface skin temperatures, and only the emissivity at Shouxian is calculated; the calculation of the emissivities over the region of HUBEX needs more measurements.

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