本数据集为疏勒河流域第二版本的ASTER GDEM数据集，包括DEM、山影、坡度、坡向数据。空间分辨率：1弧度秒 （约30 米），精度：垂直精度20米，水平精度30米。
\n\n", "ds_source": "ASTER Global Digital Elevation Model (ASTER GDEM)是美国是美国航空航天局 (NASA )和日本经济产业省(METI)联合发布的全球数字高程数据产品, 该DEM数据是根据NASA新一代对地观测卫星TERRA的观测结果完成，是由ASTER(Advanced Space borne Thermal Emission and Reflection Radio meter)传感器搜集的130万个立体像对数据制作，其覆盖范围超过了地球99%陆地表面。该数据的水平精度30米（置信度95%），高程精度为20米（置信度95%）。该数据是第三个全球范围内的高程数据，较之以前的SRTM3 DEM和GTOPO30数据有明显的提高。ASTER GDEM发布了两个版本，第一个版本于2009年6月发布，第二个版本于2011年10月发布，第二版相比第一版而言，数据在水域覆盖和偏差去除等方面有了进一步的进展，数据的质量得到了很大的提高。
", "ds_process_way": "原始dem合成
", "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": "疏勒河流域", "ds_acq_lon_east": 100.0, "ds_acq_lat_south": 37.86638888888889, "ds_acq_lon_west": 92.0, "ds_acq_lat_north": 43.11638888888889, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 2453292135, "ds_files_count": 3, "ds_format": "栅格", "ds_space_res": "30.0m", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs ", "ds_thumbnail": "dad793bc-49e6-4b69-b899-cb6e0ed59857.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": "寒区旱区科学数据中心", "ds_serv_phone": "0931-4967287", "ds_serv_mail": "westdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2020-04-07 12:15:02", "last_updated": "2023-08-23 16:46:31", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.Westdc.2020.324", "i18n": { "en": { "title": "ASTER GDEM Dataset of the Shulehe River Basin", "ds_format": "Raster", "ds_source": "Aster Global Digital Elevation Model (Aster GDEM) is a global digital elevation data product jointly released by NASA and METI, The DEM data is based on the observation results of Terra, a new generation of earth observation satellite of NASA. It is made of 1.3 million stereo image pairs collected by ASTER(Advanced Space borne Thermal Emission and Reflection Radio meter)sensor. Its coverage exceeds 99% of the earth's land surface. The data has a horizontal accuracy of 30 meters (95% confidence) and an elevation accuracy of 20 meters (95% confidence). This data is the third global elevation data, which is significantly higher than the previous SRTM3 DEM and GTOPO30 data. ASTER GDEM has released two versions, the first in June 2009 and the second in October 2011. Compared with the first version, the second version has made further progress in water coverage and deviation removal, and the quality of data has been greatly improved.
", "ds_quality": "Good data quality
", "ds_ref_way": "", "ds_abstract": "This data set is the second version of Aster GDEM data set of Shule River Basin, including DEM, mountain shadow, slope and aspect data. Spatial resolution: 1 radian second (about 30 meters), accuracy: vertical accuracy of 20 meters, horizontal accuracy of 30 meters.
", "ds_time_res": "", "ds_acq_place": "Shule River Basin", "ds_space_res": "30.0m", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs ", "ds_process_way": "Original DEM synthesis
", "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, "is_paper_in_submitting": false, "ds_topic_tags": [ "ASTER GDEM V2", "DEM" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "疏勒河流域" ], "ds_time_tags": [ 2011 ], "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": "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": "遥感及产品" }