%0 Journal Article
%T Retrieving snow information in typical forest zone of Tianshan mountains from multi-angle imaging spetroradiometer data<br>天山典型林带积雪的多角度遥感识别
%A WANG Lingxiao
%A XIAO Pengfeng
%A FENG Xuezhi
%A <br>汪凌霄
%A 肖鹏峰
%A 冯学智
%J 遥感学报
%D 2012
%I 
%X A forest zone extending from west to east of Tianshan Mountain greatly affects the snow mapping accuracy in this area. The ability of the Multi-angle Imaging SpectroRadiometer (MISR) to obtain simultaneous measurements at nine view angles has provided unique information of forest. In this paper, we provided a new method to retrieve snow information in coniferous forest of Tianshan Mountain from MISR data. First, we chose 10 MISR scenes ranging from April 2000 to July 2001, and then ISODATA unsupervised classification was applied to the reflectance image viewed at five different view angles (0°, ±26.1°, ±45.6°) in red band acquired in summer to get the forest-region information. According to the angular signature of two study sites under certain conditions of snow distribution, we found that, when there was snow in the forest, the average of f ive view angles of red band was bigger than 0.1 or the reflectance viewed at 45.6° was 2.5 times more than the reflectance viewed at nadir. Results indicate that directional effects are associated with the snow conditions in the forest, especially in the red band, and the surface anisotropy signature has signif icant potential in retrieving snow information in forest regions.
%K MISR
%K multi-angle remote sensing
%K forest zone of Tianshan Mountain
%K snow identif ication<br>MISR
%K 多角度遥感
%K 天山林带
%K 积雪识别
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=A41A70F4AB56AB1B&jid=F926358B31AC94511E4382C083F7683C&aid=9B3C227A81E2A28C8C4ECDE9FD2B8881&yid=99E9153A83D4CB11&vid=7801E6FC5AE9020C&iid=94C357A881DFC066&sid=2418F98BB0851817&eid=8CE636FB0B122692&journal_id=1007-4619&journal_name=遥感学报&referenced_num=0&reference_num=27