{"id":"792d3a51-c36a-478c-b501-89fceaa7e870","title":"祁连山区域30m人类活动参数产品数据集（V1.0）（1985-2017）","title_en":"Human activity parameters at Qilian Mountain Area (V1.0) (1985-2017)","serial":"","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":"文件命名约定：YYYY_QiLianShan_WholeArea_**30.tif\t（YYYY：年；**：参数名称）\n数据版本号：V1.0\n投影：+proj=longlat +datum=WGS84 + UTM\n数据格式：GeoTIFF, 66777行×40598列\n填充值：0","description":"本数据集包括祁连山区域1985年至2017年每5年一期的30m耕地和建筑用地分布产品。该产品基于Landsat系列数据生产。生产耕地产品时，利用夏季合成的Landsat系列数据，使用归一化植被指数NDVI，并辅助以作物的物候期、作物种植类别等先验知识设定产品生产规则；生产建筑用地产品时，利用夏季合成的Landsat系列数据，使用归一化植被指数NDVI、NDBI、MNDWI等指数，辅助以DEM、灯光数据等设定产品生产规则。以2015年的产品为例，由Google Earth高清影像和实地调研数据进行精度评价，得出2015年耕地和建筑用地产品的精度分别为89.43%和91.89%。","doi":"10.11888/Socioeco.tpdc.270123","projection":"WGS84","language":"zh","share_type":"online","east":107.0,"west":89.0,"south":34.0,"north":45.0,"scale":null,"crs":null,"filesize":42000.0,"share_policy":"a","ts_created":"2019-06-27T05:46:42.255748+08:00","doi_type":null,"ts_updated":"2021-04-19T18:49:04.973385+08:00","time_description":"","datas_group":3,"time_description_en":null,"data_format":null,"project":[11],"specials":["f2a78cde-1c98-4241-94dc-7532eba32b80"],"cite":null,"review_status":5,"review_invite":[{"user_name":"吴锋","username":"simlab3825","email":"wufeng@igsnrr.ac.cn","is_cancel_expert":false}],"review_editor":null,"data_sources":"该数据集是利用了Google Earth Engine 平台提供的Landsat 系列数据：http://earthengine.google.org/","temporal_resolution":"1 year < x < 10 year","spatial_resolution":"m","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[6],"subtopics":{"metadata":"792d3a51-c36a-478c-b501-89fceaa7e870","three_pole":null,"third_pole":"XDA20100101"},"username":"杨爱霞","review_time":"2019-06-27T08:37:16.487267+08:00","protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":2340}