数据为青海湖流域铁路分布图，铁路经过天峻县，刚察县，共和县，海晏县四县，比例尺1：250000，数据包括空间数据和属性数据，属性字段：code（铁路编码）。
", "ds_source": "青海湖流域铁路分布图
", "ds_process_way": "数字矢量化
", "ds_quality": "数据集通过严格的人工审核控制质量
", "ds_acq_start_time": "2000-01-01 00:00:00", "ds_acq_end_time": "2000-12-31 00:00:00", "ds_acq_place": "青海湖流域", "ds_acq_lon_east": 101.44972222222222, "ds_acq_lat_south": 36.166666666666664, "ds_acq_lon_west": 97.51666666666667, "ds_acq_lat_north": 38.416666666666664, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 581810, "ds_files_count": 3, "ds_format": "矢量", "ds_space_res": "2500.0m", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs", "ds_thumbnail": "9da7b101-70ab-49e4-b390-9cff0faf33a7.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "None", "ds_from_station": null, "organization_id": "9c4867b1-5cb1-4de0-abeb-df42547bf41e", "ds_serv_man": "李红星 ", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2021-01-05 10:05:03", "last_updated": "2023-08-23 16:46:31", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.Westdc.2020.323", "i18n": { "en": { "title": "Railway Distribution Dataset in Qinghai Lake Basin", "ds_format": "Vector", "ds_source": "Railway distribution map of Qinghai Lake Basin
", "ds_quality": "Data set quality control through strict manual audit
", "ds_ref_way": "", "ds_abstract": "The data is the railway distribution map of Qinghai Lake Basin. The railway passes through Tianjun County, Gangcha County, Gonghe County and Haiyan County. The scale is 1:250000, The data includes spatial data and attribute data. The attribute field is code (railway code).
", "ds_time_res": "", "ds_acq_place": "Qinghai Lake Basin", "ds_space_res": "2500.0m", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs", "ds_process_way": "Digital Vectorization
", "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indicate the data source and data authors in the research results (including published papers, works, data products and unpublished research reports, data products, etc.)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." } }, "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, "ds_topic_tags": [ "铁路", "基础数据" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "青海湖流域", "，天峻县，刚察县，共和县，海晏县" ], "ds_time_tags": [ 2000 ], "ds_contributors": [ { "true_name": "吴立宗", "email": "wulizong@pric.org.cn", "work_for": "国家极地科学数据中心", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "吴立宗", "email": "wulizong@pric.org.cn", "work_for": "国家极地科学数据中心", "country": "中国" } ], "ds_managers": [ { "true_name": "康建芳", "email": "kangjf@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" }