基于1981-2020年Landsat MSS/TM/OLI光学卫星遥感数据，采用目视解译的方法提取布若岗日地区的每隔~5年的冰川和冰湖边界，并基于冰川/冰湖边界信息提取了不同时期的冰川面积和长度、以及冰湖面积等信息。冰川和冰湖边界等矢量图层均统一在WGS1984坐标系下，采用ESRI Shape格式存储；冰川和冰湖面积等属性信息，均投影到UTM_Zone_46N坐标系后计算，采用MS Excel格式存储。冰川和冰湖面积误差，采用像元缓冲区法进行了估算。基于1980年中国历史地形图、2000年的SRTM DEM、以及2014年和2020年TanDEM等DEM数据，利用大地测量法计算布加岗日地区的冰川物质变化。在提取冰川物质变化前，将不同DEM数据均统一到了空间分辨率30 m和坐标系UTM_Zone_46N，并基于地形因子对空间匹配误差进行了校正，采用SRTM X波段数据排除了C波段雷达积雪穿透对数据结果的影响。最后用非冰川区去自相关后的中误差，对冰川物质变化精度进行了评价。", "ds_source": "
（1）1981-2020年Landsat MSS/TM/OLI光学卫星遥感数据；\n
（2）1980年中国历史地形图、2000年的SRTM DEM、以及2014年和2020年TanDEM等DEM数据。", "ds_process_way": "
采用目视解译的方法提取布若岗日地区的每隔~5年的冰川和冰湖边界，并基于冰川/冰湖边界信息提取了不同时期的冰川面积和长度、以及冰湖面积等信息。", "ds_quality": "
数据质量较好。", "ds_acq_start_time": "1981-01-01 00:00:00", "ds_acq_end_time": "2020-12-31 00:00:00", "ds_acq_place": "唐古拉山东部,布加岗日地区", "ds_acq_lon_east": null, "ds_acq_lat_south": null, "ds_acq_lon_west": null, "ds_acq_lat_north": null, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "open-access", "ds_total_size": 2463433, "ds_files_count": 0, "ds_format": "*.shp,*.xlsx", "ds_space_res": "30米", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "UTM_Zone_46N", "ds_thumbnail": "9b76464f-730c-4a6e-89f4-778c1accf899.png", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "952adb3f-3ede-4a94-942a-7de772f1bfc5", "ds_serv_man": "李红星", "ds_serv_phone": "0931-4967592", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.45" ], "quality_level": 0, "publish_time": "2026-04-07 18:43:42", "last_updated": "2026-04-07 18:43:42", "protected": false, "protected_to": null, "lang": "zh", "cstr": "31253.11.sciencedb.32177", "i18n": { "en": { "title_en": "A dataset of glacier changes in the Bujiagangri area of eastern Tanggula Mountain from 1981 to 2020", "ds_format_en": "", "ds_source_en": "", "ds_quality_en": "", "ds_ref_way_en": "", "ds_abstract_en": "", "ds_time_res_en": "", "ds_acq_place_en": "Eastern Tanggula Mountain, Bujiagangri area", "ds_space_res_en": "", "ds_projection_en": "", "ds_process_way_en": "", "ds_ref_instruction_en": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "ds_topic_tags": [ "冰川变化", "冰川物质平衡", "布加岗日", "冰湖变化" ], "ds_subject_tags": [ "地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "唐古拉山东部", "布加岗日" ], "ds_time_tags": [ 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 ], "ds_contributors": [ { "true_name": "王博涛", "email": "20010104004@mail.hnust.edu.cn", "work_for": "湖南科技大学 ", "country": "中国" }, { "true_name": "魏俊锋", "email": "weijunfeng@hnust.edu.cn", "work_for": "湖南科技大学地球科学与空间信息工程学院", "country": "中国" }, { "true_name": "周清一", "email": "24022003014@mail.hnust.edu.cn", "work_for": "湖南科技大学 ", "country": "中国" }, { "true_name": "蒋宗立", "email": "jiangzongli@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "王博涛", "email": "20010104004@mail.hnust.edu.cn", "work_for": "湖南科技大学 ", "country": "中国" }, { "true_name": "魏俊锋", "email": "weijunfeng@hnust.edu.cn", "work_for": "湖南科技大学地球科学与空间信息工程学院", "country": "中国" }, { "true_name": "周清一", "email": "24022003014@mail.hnust.edu.cn", "work_for": "湖南科技大学 ", "country": "中国" }, { "true_name": "蒋宗立", "email": "jiangzongli@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "ds_managers": [ { "true_name": "王博涛", "email": "20010104004@mail.hnust.edu.cn", "work_for": "湖南科技大学 ", "country": "中国" }, { "true_name": "魏俊锋", "email": "weijunfeng@hnust.edu.cn", "work_for": "湖南科技大学地球科学与空间信息工程学院", "country": "中国" }, { "true_name": "周清一", "email": "24022003014@mail.hnust.edu.cn", "work_for": "湖南科技大学 ", "country": "中国" }, { "true_name": "蒋宗立", "email": "jiangzongli@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "category": "冰川" }