该数据根据国家基础地理信息中心发布的中国1：25万数字等高线和高程点生成的DEM数据，通过ArcGIS空间分析模块的最邻近法重采样方法生成的，空间分辨率30sec。
", "ds_source": "国家基础地理信息中心发布的中国1：25万数字等高线和高程点
", "ds_process_way": "ARCGIS空间分析模块的最邻近法重采样方法
", "ds_quality": "数据质量良好
", "ds_acq_start_time": "2009-01-01 00:00:00", "ds_acq_end_time": "2009-12-31 00:00:00", "ds_acq_place": "黑河流域", "ds_acq_lon_east": 104.19972222222222, "ds_acq_lat_south": 37.7, "ds_acq_lon_west": 96.01666666666667, "ds_acq_lat_north": 43.25, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 927177, "ds_files_count": 3, "ds_format": "矢量", "ds_space_res": "30.0m", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs ", "ds_thumbnail": "44c5b56e-ed78-4b29-a846-4b92f5e4e3af.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "9c4867b1-5cb1-4de0-abeb-df42547bf41e", "ds_serv_man": "黑河计划数据管理中心", "ds_serv_phone": "0931-4967287", "ds_serv_mail": "westdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2020-12-18 14:47:56", "last_updated": "2023-08-23 16:46:59", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.Westdc.2020.455", "i18n": { "en": { "title": "30 arc-second DEM data of Heihe river basin", "ds_format": "vector", "ds_source": "1:250000 digital contour lines and high program points in China issued by National Basic Geographic Information Center
", "ds_quality": "Good data quality
", "ds_ref_way": "", "ds_abstract": "According to the DEM data of 1:250000 digital contour lines and elevation points issued by the national basic geographic information center of China, the data is generated by the nearest neighbor resampling method of ArcGIS spatial analysis module, with a spatial resolution of 30 sec.
", "ds_time_res": "", "ds_acq_place": "Heihe River Basin", "ds_space_res": "30.0m", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs ", "ds_process_way": "The nearest neighbor resampling method of ArcGIS spatial analysis module
", "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the data sources and data authors in the research results (including published papers, treatises, data products and unpublished research reports, data products, etc.)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": "https://creativecommons.org/licenses/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": [ "数字高程模型", "DEM", "基础地理", "黑河流域" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "黑河流域" ], "ds_time_tags": [ 2009 ], "ds_contributors": [ { "true_name": "年雁云", "email": "yynian@lzu.edu.cn", "work_for": "兰州大学", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "黑河计划数据管理中心", "email": "westdc@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "" } ], "ds_managers": [ { "true_name": "年雁云", "email": "yynian@lzu.edu.cn", "work_for": "兰州大学", "country": "中国" } ], "category": "基础地理" }