本数据以SRTM 30米分辨率DEM数据为数据源，进行数据拼接、重采样等影像处理，再利用泾河流域区域边界裁剪，生成空间分辨率为30m的泾河流域区域DEM数据产品。\n
\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": "
泾河流域30 m分辨率DEM数据来自NASA的SRTM v41 1s数据，该数据目前由USGS免费分发，可以从USGS FTP站点免费下载。", "ds_process_way": "
利用Python程序进行影像拼接、重采样；按照泾河流域边界为研究区域进行裁剪，生成泾河流域30米DEM数据产品。", "ds_quality": "
数据质量良好。", "ds_acq_start_time": "2000-01-01 00:00:00", "ds_acq_end_time": "2000-12-31 00:00:00", "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": 81108281, "ds_files_count": 2, "ds_format": "tif", "ds_space_res": "30米", "ds_time_res": "年", "ds_coordinate": "WGS84", "ds_projection": "UTM", "ds_thumbnail": "cacf9a70-d8da-4035-8c1d-2b09b4e12fc0.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.db1987.2022", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2022-04-08 10:20:42", "last_updated": "2025-06-30 15:52:28", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.JRiver.db1987.2022", "i18n": { "en": { "title": "30m resolution digital elevation model (DEM) data of Jinghe River Basin", "ds_format": "tif", "ds_source": "
The 30m resolution DEM data of Jinghe River Basin is from the SRTM V41 1s data of NASA. The data is currently distributed free by USGS and can be downloaded free from USGS FTP site.", "ds_quality": "
Good data quality.", "ds_ref_way": "", "ds_abstract": "
This data takes SRTM 30m resolution DEM data as the data source, carries out image processing such as data splicing and resampling, and then uses the regional boundary clipping of Jinghe River basin to generate the regional DEM data product of Jinghe River basin with spatial resolution of 30m.\n
\nThe data can provide basic geographic data support for regional scientific research in Jinghe River Basin.
", "ds_time_res": "年", "ds_acq_place": "Jinghe River Basin, Gansu Province, Shaanxi Province, Ningxia Hui Autonomous Region", "ds_space_res": "30米", "ds_projection": "UTM", "ds_process_way": "Use Python program for image mosaic and resampling; The study area is cut according to the boundary of Jinghe River Basin, and the 30m DEM data product of Jinghe River Basin is generated.", "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": [ "泾河流域", "DEM", "30米" ], "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" }