典型文献
A Theoretical Model for the Microwave Emissivity of Rough Sea Surfaces
文献摘要：
When sea surface wavelengths are not larger than microwave wavelengths, the microwave emissivity of Gaussian rough sea surfaces can be investigated by applying effective media theory (EMT) of rough surfaces. For one-dimensional Gaussian sea surface, the microwave emissivity model is proposed by EMT, which regards the air-sea rough interface as a new effective medium of iso-tropic permittivity between the top layer of air and the bottom layer of seawater. The emissivity model is controlled by the root mean square deviation (RMSD) of the rough surface height and the correlation length of the rough surface. Results clearly show that the emissivity increases along with the RMSD increase if the latter is smaller than a critical value. Furthermore, excess emissivities and the brightness temperature increments for a wind-roughened sea surface can be estimated from those of flat surfaces by fitting the RMSD as a function of wind speed. Good agreements are obtained by comparing the results of our model with the satellite data at microwave frequencies of 1.4, 6.8, 18, 21, and 37 GHz, respectively. Moreover, these findings imply that our method can be extended to retrieve the sea surface parameters, such as RMSD and the correlation length of the rough surface, from the satellite data.
文献关键词：
中图分类号：
作者姓名：
YANG Zhenlin;WEI Enbo;GAO Peng
作者机构：
School of Mathematics and Physics,Qingdao University of Science and Technology,Qingdao 266061,China;Institute of Oceanology and Center for Ocean Mega-Science,Chinese Academy of Sciences,and Qingdao National Laboratory for Marine Science and Technology,Qingdao 266071,China
文献出处：
引用格式：
[1]YANG Zhenlin;WEI Enbo;GAO Peng-.A Theoretical Model for the Microwave Emissivity of Rough Sea Surfaces)[J].中国海洋大学学报（自然科学英文版）,2022(06):1403-1410
A类：
Emissivity,emissivities
B类：
Theoretical,Model,Microwave,Rough,Sea,Surfaces,When,wavelengths,not,larger,than,microwave,emissivity,Gaussian,surfaces,can,investigated,by,applying,effective,media,theory,EMT,For,one,dimensional,model,proposed,which,regards,air,interface,new,medium,iso,tropic,permittivity,between,top,layer,bottom,seawater,controlled,root,mean,square,deviation,RMSD,height,correlation,Results,clearly,show,that,increases,along,if,latter,smaller,critical,value,Furthermore,excess,brightness,temperature,increments,wind,roughened,estimated,from,those,flat,fitting,function,speed,Good,agreements,obtained,comparing,results,our,satellite,data,frequencies,GHz,respectively,Moreover,these,findings,imply,method,extended,retrieve,parameters,such
AB值：
0.520486
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