{"id":"230bf85f-abd0-4b48-a27b-6c5aff3833ce","title":"中国地区MODIS雪盖产品数据集（2000-2004）","title_en":"MODIS Snow cover product dataset in China (2000-2004)","serial":"冰冻圈","user_limit":"为尊重知识产权、保障数据作者的权益、扩展数据中心的服务、评估数据的应用潜力，请数据使用者在使用数据所产生的研究成果中（包括公开发表的论文、论著、数据产品和未公开发表的研究报告、数据产品等成果），明确注明数据来源和数据作者。对于转载（二次或多次发布）的数据，作者还须注明原始数据来源。","instructions":".hdf 格式存储","description":"该数据集为2000年2月24日至2004年12月31日，分辨率为 0.05度，MODIS数据，数据格式为.hdf，可以用HDFView打开，数据质量良好，缺失的日期如下： 2000年 1-54 132 219-230 303 2001年 111 167-182 2002年 079－086 099 105 2003年 123 324 351-358 2004年 219 349 其中年后面的数字为该年的第n天\nPixel values are as follows:\n0: Snow-free land 1-100: Percent snow in cell\n111: Night\n252: Antarctica\n253: Data not mapped\n254: Open water (ocean)\n255: Fill\n文件命名举例如下：\nExample:  \"MOD10C1.A2003121.004.2003142152431.hdf\"\nWhere:\nMOD = MODIS/Terra\n2003 = Year of data acquisition\n121 = Julian date of data acquisition (day 121)\n004 = Version of data type (Version 4)\n2003 = Year of production (2003)\n142 = Julian date of production (day 142)\n152431 = Hour/minute/second of production in GMT (15:24:31) \n角点坐标为：\nCorner Coordinates:\nUpper Left  (  70.0000000,  54.0000000)\nLower Left  (  70.0000000,   3.0000000)\nUpper Right ( 138.0000000,  54.0000000)\nLower Right ( 138.0000000,   3.0000000)\n其中Upper Left  为左上角，Lower Left  为左下角，Upper Right 为右上角，Lower Right 为右下角。\n数据行列数分别为 1360, 1020\n地理经纬度坐标，具体信息如下：\nCoordinate System is:\nGEOGCS[\"Unknown datum based upon the Clarke 1866 ellipsoid\",\n    DATUM[\"Not specified (based on Clarke 1866 spheroid)\",\n        SPHEROID[\"Clarke 1866\",6378206.4,294.9786982139006,\n            AUTHORITY[\"EPSG\",\"7008\"]]],\n    PRIMEM[\"Greenwich\",0],\n    UNIT[\"degree\",0.0174532925199433]]\nOrigin = (70.000000000000000,54.000000000000000)","doi":"","projection":null,"language":"zh","share_type":"offline","east":135.5,"west":73.2,"south":17.8,"north":53.9,"scale":null,"crs":null,"filesize":2389.18,"share_policy":"b","ts_created":"2012-04-04T21:26:42+08:00","doi_type":"国际公开共享数据","ts_updated":"2021-04-19T22:04:54.516562+08:00","time_description":"","datas_group":0,"time_description_en":"","data_format":"HDF","project":[10,11],"specials":[],"cite":null,"review_status":5,"review_invite":[],"review_editor":null,"data_sources":null,"temporal_resolution":"Yearly","spatial_resolution":"0.01º - 0.05º","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[],"subtopics":{"metadata":"230bf85f-abd0-4b48-a27b-6c5aff3833ce","three_pole":null,"third_pole":null},"username":"盖春梅","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":11344}