{"id":"8d14fa19-5ce1-4fff-bc91-8ea3b29bd11b","title":"黑河生态水文遥感试验：黑河流域中游BRDF观测数据集","title_en":"HiWATER: Dataset of BRDF observations in the midstream of the Heihe River Basin","serial":"HiWATER","user_limit":"本数据由“黑河生态水文遥感试验（HiWATER）”产生，用户在使用数据时请在正文中明确声明数据的来源，并在参考文献部分引用本元数据提供的引用方式。","instructions":"","description":"本数据为大满超级站玉米地（测点经纬度：100.372°E，38.855°N；时间：2012-06-29）及机场附近荒漠（测点经纬度：100.700°E，38.762°N；时间：2012-07-08）的BRDF数据集。\n测量仪器：中科院遥感所SVC-HR1024光谱仪和参考板、北师大研制多角度自动观测架\n测量方式：测量多角度数据以观测平面为单位，即确定观测平面的方位角后，在该平面下以不同的观测天顶角测量地物的光谱。观测平面以平行太阳主平面和垂直太阳主平面观测为主，大满站行播玉米观测了垂直垄和平行垄，荒漠还有正南、正北等平面。每个观测平面，观测天顶角以10°为间隔测量-60°~60°之间的方向反射率。多角度观测架最大测量高度可达5m，利用视场为25°的SVC-HR1024光谱仪观测,光谱范围400nm-2500nm。每个观测平面，先测量参考板的辐射亮度，再将光谱仪探头对准地物，对地物观测按照设定的观测平面每间隔10°天顶角进行观测，观测平面完成后，再对参考板进行测量。由此，完成一次观测平面的测量。\nBRDF数据集包括原始数据与记录数据、处理后的BRDF数据。处理后的数据以txt保存，文件中包括角度信息和反射率信息(相对于参考板的反射率)，以及每个平面的三个波长上的BRF随观测角度分布图。","doi":"10.3972/hiwater.026.2013.db","projection":"4326","language":"zh","share_type":"online","east":100.372,"west":100.372,"south":38.855,"north":38.855,"scale":null,"crs":null,"filesize":50.0,"share_policy":"a","ts_created":"2017-08-23T15:09:16+08:00","doi_type":null,"ts_updated":"2021-04-19T23:14:27.697857+08:00","time_description":"","datas_group":3,"time_description_en":null,"data_format":"文本, *.sig后缀","project":[10,11,15],"specials":["ee3dfdf5-2e9f-4b61-a301-4fb49e30e3c2","6f45f287-f49c-49aa-a5b7-e88e4132b9a8","09506351-15ed-40aa-ba70-b63881dbacd9","4e7b97a6-ee1f-4b51-83e5-04a100993973"],"cite":null,"review_status":5,"review_invite":[],"review_editor":null,"data_sources":null,"temporal_resolution":null,"spatial_resolution":null,"license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[40,43],"subtopics":{"metadata":"8d14fa19-5ce1-4fff-bc91-8ea3b29bd11b","three_pole":null,"third_pole":null},"username":"胡晓利","review_time":null,"protected_duration":6,"protected_describe":null,"is_important":false,"hit_count":10659}