Near-Surface Air Temperature Estimation From ASTER Data Using Neural Network

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<TD  vAlign=center align=middle height=25>Near-Surface Air Temperature Estimation From ASTER Data Using Neural Network </TD></TR></TABLE></TD></TR>
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<P ><STRONG style="mso-bidi-font-weight: normal"><FONT face="Times New Roman">Near-Surface Air Temperature Estimation From ASTER Data Using Neural Network<P></P></FONT></STRONG></P>
<P ><FONT size=3><FONT face="Times New Roman"><STRONG style="mso-bidi-font-weight: normal">Kebiao Mao</STRONG>, Huajun Tang, Xiufeng Wang , Qingbo Zhou, Daolong Wang,<P></P></FONT></FONT></P>
<P ><FONT size=3><FONT face="Times New Roman">An algorithm based on the radiance transfer model (MODTRAN4) and a dynamic learning neural network for estimation of near-surface air temperature from ASTER data are developed in this paper. MODTRAN4 is used to simulate radiance transfer from the ground with different combinations of land surface temperature, near surface air temperature, emissivity and water vapour content. The dynamic learning neural network is used to estimate near surface air temperature. The analysis indicates that near surface air temperature cannot be directly and accurately estimated from thermal remote sensing data. If the land surface temperature and emissivity were made as prior knowledge, the mean and the standard deviation of estimation error are both about 1.0 K. The mean and the standard deviation of estimation error are about 2.0K and 2.3 K, considering the estimation error of land surface temperature and emissivity. Finally, the comparison of estimation results with ground measurement data at meteorological stations indicates that the RM-NN can be used to estimate near surface air temperature from ASTER data.<P></P></FONT></FONT></P>
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<P ><FONT face="Times New Roman"><STRONG style="mso-bidi-font-weight: normal">Kebiao Mao</STRONG>, Huajun Tang, Xiufeng Wang , Qingbo Zhou, Daolong Wang, Near-Surface Air Temperature Estimation From ASTER Data Using Neural Network, International Journal of Remote Sensing,2008, 29(20): 6021-6028.<P></P></FONT></P>
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<TD class=h vAlign=top align=left>本文引用地址：<a href="http://www.sciencenet.cn/blog/user_content.aspx?id=231554" target="_blank" >http://www.sciencenet.cn/blog/user_content.aspx?id=231554</A> </TD></TR>
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<TD >本文关键词： </TD>
<TD >热红外遥感 近地表空气温度 地表温度 发射率 ASTER </TD></TR>
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