黄河是我国第二长河，黄河泥沙问题引起全世界人民的关注。流域是重要的自然单元，以SRTM-DEM与ASTER-GEDEM数据集为数据源，在ArcGIS软件平台下，利用河道烧录法与河道标量法相结合的方法，对黄河上游流域边界进行了提取，获得自黄河源区至河口镇整个黄河上游的流域边界。
\n\n该图以ArcGIS,.shp文件存储，流域边界横跨青海、四川、甘肃、宁夏、内蒙五个省（自治区），总面积达55.06 × 104 km2。
\n\n流域边界是水文、土壤侵蚀及非点源污染研究的重要自然单元，通过流域边界的提取，可以划定土壤侵蚀及非点源污染的迁移范围。
", "ds_source": "美国发布的SRTM-DEM与ASTER-GDEM
", "ds_process_way": "以美国发布的SRTM-DEM与ASTER-GDEM为数据源，在ArcGIS软件平台下，利用河道烧录法与河道标量法相结合的方法，对黄河上游流域边界进行了提取。
", "ds_quality": "由于三湖河口至河口镇河流比降极小，因此该段流域边界存在一定误差。
", "ds_acq_start_time": "2011-04-26 00:00:00", "ds_acq_end_time": "2012-04-28 00:00:00", "ds_acq_place": "黄河上游青海、四川、甘肃、宁夏、内蒙古", "ds_acq_lon_east": 112.0, "ds_acq_lat_south": 37.0, "ds_acq_lon_west": 95.0, "ds_acq_lat_north": 42.0, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 2890928, "ds_files_count": 8, "ds_format": "矢量", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs ", "ds_thumbnail": "b6b3079d-d21a-4bfa-92b5-8590b935b3eb.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "None", "ds_from_station": null, "organization_id": "52b7b79b-860c-49a5-9083-9a70cf8bed5a", "ds_serv_man": "李红星", "ds_serv_phone": "0931-4967592", "ds_serv_mail": "lihongxing@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2020-12-23 10:33:52", "last_updated": "2023-08-23 17:03:09", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.nieer.2020.1508", "i18n": { "en": { "title": "Boundary map of the upper Yellow River basin", "ds_format": "shp", "ds_source": "Srtm-dem and aster-gdem released in the United States
", "ds_quality": "There is some error in the boundary of this section of the catchment because of the very small specific fall of the river from the mouth of the Three Lakes to the town of Riverhead.
", "ds_ref_way": "", "ds_abstract": "The Yellow River is the second longest river in China and its sediment problem has attracted the attention of people all over the world. The river basin is an important natural unit. Using the SRTM-DEM and ASTER-GEDEM datasets as data sources, the upper Yellow River basin boundary was extracted using a combination of the river burn method and the river scalar method under the ArcGIS software platform to obtain the basin boundary of the entire upper Yellow River from the source area to the town of Hekou.
\nThe map is stored as an ArcGIS,.shp file, and the watershed boundary spans five provinces (autonomous regions) in Qinghai, Sichuan, Gansu, Ningxia and Inner Mongolia, with a total area of 55.06 × 104 km2.
\nWatershed boundaries are important natural units for hydrological, soil erosion and non-point source pollution studies, and by extracting watershed boundaries it is possible to delineate the extent of soil erosion and non-point source pollution transport.
", "ds_time_res": "", "ds_acq_place": "Qinghai, Sichuan, Gansu, Ningxia, Inner Mongolia in the upper reaches of the Yellow River", "ds_space_res": "", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs ", "ds_process_way": "Taking srtm-dem and aster-gdem issued by the United States as data sources, the upper Yellow River basin boundary is extracted by using the method of river burning and river scalar method under the ArcGIS software platform.
", "ds_ref_instruction": "In order to respect intellectual property rights, protect the rights and interests of data authors, expand the services of data centers, and evaluate the application potential of data, data users are requested to clearly indicate the data source and data authors in the research results (including published papers, works, data products and unpublished research reports, data products, etc.) produced by using data. For data reprinted (secondary or multiple releases), the author must also indicate the source of the original data. The results published in Chinese refer to the following specifications: the data comes from the national key basic research planning project (973), \"the process and regulation mechanism of aeolian sand flow and sediment in the broad valley of desert in the upper reaches of the Yellow River\" The data set is provided by \"comprehensive data platform of Ningxia Inner Mongolia reach of the Yellow River\", National KeyBasic Research Program of China (2011CB403306), http://http://www.crensed.ac.cn/xxxxxxx”" } }, "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": [ "流域边界", "基础地理", "黄河上游" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "内蒙古", "宁夏", "四川", "黄河上游", "甘肃省", "青海省" ], "ds_time_tags": [ 2012 ], "ds_contributors": [ { "true_name": "薛娴", "email": "xianxue@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": "杜鹤强", "email": "dilikexue119@163.com", "work_for": "中国科学院西北生态环境资源研究院", "country": "" } ], "ds_managers": [ { "true_name": "薛娴", "email": "xianxue@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" }