{"id":"918d4f2f-eb76-4418-88ed-e7837b5960f8","title":"西亚地区荒漠化时空格局专题数据（1990-2018）","title_en":"Thematic data on desertification of Western Asia (1990-2008)","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":"数据为标准shp/Geotiff文件格式，可以利用ArcGIS、MapGIS、ENVI、Erdas等遥感处理软件打开并编辑。","description":"西亚地区荒漠化专题数据主要包括：西亚地区沙化土地分布图和西亚地区退化草地分布图，空间分辨率为30m。西亚地区沙化土地分布图包含的土地类型有沙地、盐碱地、裸土地和裸岩石砾地，西亚地区退化草地分布图将草地划分为高覆盖草地、中覆盖草地和低覆盖草地三类。数据由中国科学院新疆生态与地理研究所遥感与GIS重点实验室生产，生产费用由“中国科学院战略性先导科技专项XDA20030101资助”，数据空间分辨率为30m。数据主要是基于2015年TM、ETM遥感影像数据，基于去云、镶嵌与裁剪、拼接、阴影处理等预处理，借助eCognition软件进行面向对象的地类分类，实现软件自动分类和人工信息提取相结合，最后对分类结果进行人工检查与修正。数据验证方式为野外实地验证和高精度影像验证两种方式，验证精度达到85%以上。","doi":"10.11888/Ecolo.tpdc.270416","projection":"Lambert_Conformal_Conic","language":"zh","share_type":"protected","east":75.2,"west":25.3,"south":12.5,"north":44.3,"scale":null,"crs":null,"filesize":1440.0,"share_policy":"a","ts_created":"2020-03-06T16:14:02.662406+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-04-20T00:28:09.006803+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":null,"project":[11],"specials":["f2a78cde-1c98-4241-94dc-7532eba32b80"],"cite":null,"review_status":5,"review_invite":[{"user_name":"张扬建","username":"naqu3228","email":"zhangyj@igsnrr.ac.cn","is_cancel_expert":true},{"user_name":"秦军","username":"秦军","email":"shuairenqin@itpcas.ac.cn","is_cancel_expert":true}],"review_editor":{"id":21057,"last_login":"2022-04-02T11:43:37.753860+08:00","username":"gecm","email":"gechm@lzb.ac.cn","is_active":true,"is_staff":true,"user_name":"盖春梅"},"data_sources":null,"temporal_resolution":"1 year < x < 10 year","spatial_resolution":"10m - 100m","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[6],"subtopics":{"metadata":"918d4f2f-eb76-4418-88ed-e7837b5960f8","three_pole":null,"third_pole":"XDA20030101"},"username":"XDA20030101","review_time":"2020-03-31T10:02:30.351772+08:00","protected_duration":12,"protected_describe":null,"is_important":false,"hit_count":1860}