该数据集采用ALOS卫星的测绘成果，经过图像拼接、投影转化、裁剪等处理，生成泾河流域12.5 m分辨率数字高程模型（DEM）。\n
该数据可为泾河流域区域科学研究提供基础地理数据支持。", "ds_source": "
数据来源于NASA EARTHDATA ：https://search.asf.alaska.edu/#/", "ds_process_way": "
利用Python程序，将分幅数据进行格式转换、拼接、裁剪等处理，按照泾河流域区域得到12.5m分辨率DEM数据。", "ds_quality": "
数据质量良好。", "ds_acq_start_time": null, "ds_acq_end_time": null, "ds_acq_place": "泾河流域,甘肃省,陕西省,宁夏回族自治区", "ds_acq_lon_east": 108.86583333333333, "ds_acq_lat_south": 34.65, "ds_acq_lon_west": 106.19166666666668, "ds_acq_lat_north": 37.39888888888889, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 303545013, "ds_files_count": 2, "ds_format": "tif", "ds_space_res": "12.5米", "ds_time_res": "年", "ds_coordinate": "WGS84", "ds_projection": "UTM", "ds_thumbnail": "ea0007cd-fd5c-4ef6-a3eb-02badcfd1ef9.png", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "用户在使用数据时请在正文中明确声明数据的来源，并在参考文献部分引用本元数据提供的引用方式。", "ds_from_station": null, "organization_id": "bf1ae243-c102-4b2d-a2f6-b698468f4401", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "10.12072/ncdc.JRiver.db1966.2022", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2022-04-07 16:13:07", "last_updated": "2025-06-30 15:52:28", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.JRiver.db1966.2022", "i18n": { "en": { "title": "12.5m resolution digital elevation model (DEM) data of Jinghe River Basin", "ds_format": "tif", "ds_source": "
Data source: NASA earthdata: https://search.asf.alaska.edu/#/", "ds_quality": "
The data quality is good.", "ds_ref_way": "", "ds_abstract": "
The data set adopts the surveying and mapping results of ALOS satellite, and generates a 12.5 m resolution digital elevation model (DEM) of the Jinghe River Basin through image mosaic, projection transformation, clipping and other processing.\n
This data can provide basic geographic data support for the regional scientific research of Jinghe River Basin.
", "ds_time_res": "年", "ds_acq_place": "Jinghe River Basin, Gansu Province, Shaanxi Province, Ningxia Hui Autonomous Region", "ds_space_res": "12.5米", "ds_projection": "UTM", "ds_process_way": "Using Python program, format conversion, splicing, cutting and other processing are carried out on the divided data, and 12.5m resolution DEM data is obtained according to the Jinghe River Basin area.", "ds_ref_instruction": "When using the data, users should clearly state the source of the data in the text and quote the reference method provided by this metadata in the References section." } }, "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": [ "DEM12.5米", "泾河流域" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "泾河流域", "甘肃省", "宁夏回族自治区", "陕西省" ], "ds_time_tags": [ 2000 ], "ds_contributors": [ { "true_name": "张耀南", "email": "yaonan@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": "李红星", "email": "lihongxing@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": "敏玉芳", "email": "myf@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": "基础地理" }