中国第一次冰川编目应用七十年代的卫星像片和六十年代的航测地形图结合野外考察编目登记1970年代我国冰川分布。", "ds_source": "
中国第一次冰川编目。", "ds_process_way": "
在ENVI软件中利用波段比值法并设定阈值得到二值图像，将二值图转换为冰川边界矢量文件，得到自动提取结果，在ArcGIS软件中结合目视解译的方法手动修正边界。", "ds_quality": "
冰川面积精度为0-5%。\n
数据生产过程: 应用七十年代的卫星像片和六十年代的航测地形图结合野外考察编目登记1970年代我国冰川分布，冰川面积采用透明厘米方格纸量算。\n
在加工生成数据时，保留所有原始数据。", "ds_acq_start_time": "1970-01-01 00:00:00", "ds_acq_end_time": "1970-12-31 00:00:00", "ds_acq_place": "柴达木盆地", "ds_acq_lon_east": 99.25, "ds_acq_lat_south": 35.0, "ds_acq_lon_west": 90.25, "ds_acq_lat_north": 39.31666666666667, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 1922426, "ds_files_count": 2, "ds_format": "shp", "ds_space_res": " 30米", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "2fe05336-1b32-4e41-a5cf-25355e167d50.jpg", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "4851e874-eafc-4879-812b-ffbdd825e967", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "10.12072/ncdc.Hydro.db2428.2022", "subject_codes": [ "170.45" ], "quality_level": 3, "publish_time": "2022-09-29 11:02:27", "last_updated": "2025-04-29 15:58:54", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.Hydro.db2428.2022", "i18n": { "en": { "title": "Distribution map of glaciers in Qaidam region (1970)", "ds_format": "shp", "ds_source": "
This is the first glacial inventory in China.", "ds_quality": "
The accuracy of glacier area is 0-5%.\n
Data production process: the distribution of China's glaciers in the 1970s was registered by using satellite photos in the 1970s and aerial topographic maps in the 1960s in combination with field survey cataloguing. The glacier area was measured by using transparent centimeter square paper.\n
When processing the generated data, keep all the original data.", "ds_ref_way": "", "ds_abstract": "
For the first time, China used satellite photos in the 1970s and aerial topographic maps in the 1960s to catalogue and register the distribution of glaciers in China in the 1970s.
", "ds_time_res": "", "ds_acq_place": "Qaidam Basin", "ds_space_res": " 30米", "ds_projection": "", "ds_process_way": "In envi software, the band ratio method is used and the threshold is set to obtain the binary image. The binary image is converted into a glacier boundary vector file, and the automatic extraction result is obtained. In ArcGIS software, the boundary is manually corrected by combining visual interpretation.", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "柴达木盆地", "冰川分布", "1970年" ], "ds_subject_tags": [ "地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "柴达木盆地" ], "ds_time_tags": [ 1970 ], "ds_contributors": [ { "true_name": "朱高峰", "email": "zhugf@lzu.edu.cn", "work_for": "兰州大学", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "石梦寒", "email": "shimh20@lzu.edu.cn", "work_for": "兰州大学", "country": "中国" } ], "ds_managers": [ { "true_name": "朱高峰", "email": "zhugf@lzu.edu.cn", "work_for": "兰州大学", "country": "中国" } ], "category": "冰川" }