黑河流域1公里DEM高程模型数据集根据国家基础地理信息中心（http://ngcc.sbsm.gov.cn） 发布的中国1：25万数字等高线和高程点数据内插生成DEM格网数据。通过DEM可提取大量的地表形态信息，这些信息包含流域网格单元的坡度、坡向以及单元格之间的关系等，是开展流域研究的重要原始资料。
", "ds_source": "国家基础地理信息中心（http://ngcc.sbsm.gov.cn） 发布的中国1：25万数字等高线和高程点数据
", "ds_process_way": "插值法
", "ds_quality": "数据质量良好
", "ds_acq_start_time": "2011-01-01 00:00:00", "ds_acq_end_time": "2011-12-31 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": 1243955, "ds_files_count": 3, "ds_format": "栅格数据", "ds_space_res": "1000.0m", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs ", "ds_thumbnail": "4e5dc53a-2a93-49c9-aa42-edbaad8a97f3.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": "黑河计划数据管理中心", "ds_serv_phone": "0931-4967287", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2020-04-08 17:48:54", "last_updated": "2023-08-25 09:27:11", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.Westdc.2020.445", "i18n": { "en": { "title": "1km DEM dataset in the Heihe river basin", "ds_format": "Raster", "ds_source": "China's 1:250000 digital contour and elevation point data released by the National Basic Geographic Information Center (http://ngcc.sbsm.gov.cn)
", "ds_quality": "Good data quality
", "ds_ref_way": "", "ds_abstract": "The data set of DEM elevation model of one kilometer in Heihe River Basin is based on the data interpolation of 1:250000 digital contour and elevation points published by the National Basic Geographic Information Center (http://ngcc.sbsm.gov.cn) to generate DEM grid data. Through DEM, a large amount of surface morphology information can be extracted, which includes the slope, slope direction and the relationship between cells of watershed grid cells. It is an important raw data for watershed research.
", "ds_time_res": "", "ds_acq_place": "Heihe River Basin", "ds_space_res": "1000.0m", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs ", "ds_process_way": "Interpolation method
", "ds_ref_instruction": "\r\nNone" } }, "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": [ "数字地形模型", "DEM", "高程" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "黑河流域" ], "ds_time_tags": [ 2011 ], "ds_contributors": [ { "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_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": "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": "" } ], "category": "基础地理" }