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The contribution of understory vegetation especially to the reflectance of boreal forest landscapes cannot be ignored. Using a new high angular resolution Ë«Ïò·´ÉäÒò×Ó data set with accompanying in situ measurements of understory reflectance, we identified the most suitable viewing configuration (VZA(1) = 0¡ã and VZA(2) = 40¡ã; PHI = 130¡ã) for the retrieval of inherent understory reflectivity from the airborne data. This is an essential information for any on-going and future efforts to retrieve correct information about understory frommulti-angle remote sensing sensors (e.g. Jiao, Liu, Liu, Pisek, & Chen, 2014), obtaining more reliable estimates of biophysical properties of the tree layer, and further development of forest radiative transfer models in general.

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ÅóÅófromÖØÇì: ½ð±Ò+20, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2016-06-30 23:55:38
ÁÖÏÂÖ²±»¶Ô¶Ô±±·½É­ÁÖ¾°¹ÛµÄ·´ÉäÂÊÔì³ÉÁËÖØÒªÓ°Ï졣ʹÓÃÒ»ÖÖи߽ǷֱæÂÊË«Ïò·´Éä×°ÖÃÄܹ»²âÁ¿Ô­Î»ÁÖÏÂÒ¶²ãµÄ·´ÉäÂÊ¡£ÎÒÃÇÈ·¶¨ÁË×îºÏÊʵÄÅäÖÃ(VZA(1) = 0¡ã and VZA(2) = 40¡ã; PHI = 130¡ã)À´ ¼ìË÷»úÔØÊý¾ÝÖк¬ÓеÄÁÖÏÂÒ¶²ã·´ÉäÂÊ¡£¶à½Ç¶ÈÒ£¸Ð´«¸ÐÆ÷¶ÔÓÚÈκÎÕýÔÚ½øÐеĺÍδÀ´µÄŬÁ¦»ñÈ¡ÕýÈ·ÐÅÏ¢µÄÁÖÏÂÒ¶²ãÊÇÒ»ÖÖÖØÒª¹¤¾ß (e.g. Jiao, Liu, Liu, Pisek, & Chen, 2014), ËüÄÜÈ¡µÃ¹À¼ÆÊ÷²ãÉúÀíÌØÐԵĸü׼ȷµÄÊý¾Ý,ºÍ½øÒ»²½·¢Õ¹É­ÁÖ·øÉäµÄ´«ÊäÄ£ÐÍ¡£
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