阳关绿洲（Yangguan Oasis）位于甘肃省酒泉市敦煌市与阿克塞哈萨克族自治县。阳关绿洲的地理位置是39°34′00″N-40°07′32″N，93°58′47″E-94°21′45″E。阳关绿洲由15块绿洲组成，总面积为83.18 km²（Albers）。其中，最大的绿洲面积为40.80 km²。滋养阳关绿洲的河流主要有圈槽渠、沙沟与东沟，它们的干流长度分别为124.58 km、112.62 km与59.05 km。阳关流域山区部分的地理位置39°15′17″N-39°28′54″N，93°50′13″E-94°34′15″E。该流域山区部分面积为819.00 km²。该流域山区部分高程被划分为7类。该数据集内容包括：（1）绿洲边界数据；（2）滋养绿洲的水系数据；（3）流域山区部分的边界数据；（4）流域山区部分高程分类数据。数据集以.kmz、.shp与.tif数据格式存储，由49个数据文件组成，数据量为9.96 MB（压缩为4个文件，3.82 MB）。
", "ds_source": "基于2020年Google earth影像、ASTER GDEM 30 m数据，结合实测数据。
", "ds_process_way": "", "ds_quality": "", "ds_acq_start_time": null, "ds_acq_end_time": null, "ds_acq_place": "", "ds_acq_lon_east": null, "ds_acq_lat_south": null, "ds_acq_lon_west": null, "ds_acq_lat_north": null, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 0, "ds_files_count": 0, "ds_format": ".kmz、.shp与.tif数据格式", "ds_space_res": "无", "ds_time_res": "无", "ds_coordinate": "WGS84", "ds_projection": "WGS84", "ds_thumbnail": "e522fbcc-ba21-45bb-acb9-bb3be9bdecd5.jpg", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "a5877b42-96ea-4f13-af7e-246f355413d6", "doi_value": "", "subject_codes": [ "170.45" ], "quality_level": 1, "publish_time": "2025-06-12 18:37:06", "first_publish_time": null, "last_updated": "2025-06-12 18:37:06", "protected": false, "protected_to": null, "lang": "zh", "cstr": null, "license": null, "extra": null, "files_shape": [], "features": null, "data_level": 0, "i18n": { "en": { "title": "Elevation classification dataset of Yangguan Oasis, Water System and Watershed (Mountain Area)", "ds_abstract": "Yangguan Oasis is located in Dunhuang City and Aksai Kazakh Autonomous County, Jiuquan City, Gansu Province. The geographical location of Yangguan Oasis is 39°34′00″N-40°07′32″N, 93°58′47″E-94°21′45″E. The Yangguan Oasis consists of 15 oases with a total area of 83.18 km² (Albers). Among them, the largest oasis covers an area of 40.80 km2. The rivers that nourish the Yangguan Oasis mainly include circular trough canal, sand ditch and east ditch, and their main streams are 124.58 km, 112.62 km and 59.05 km respectively. The geographical location of the mountainous part of the Yangguan Basin is 39°15 '17 \"N-39°28' 54\" N, 93°50 '13 \"E-94°34' 15\" E. The mountainous part of the basin covers an area of 819.00 km2. Some elevations in the mountainous areas of the basin are divided into 7 categories. The data set includes: (1) oasis boundary data;(2) water system data that nourishes the oasis;(3) boundary data of the mountainous part of the basin; and (4) elevation classification data of the mountainous part of the basin. The dataset is stored in.kmz,.shp, and.tif data formats and consists of 49 data files with a data volume of 9.96 MB (compressed into 4 files, 3.82 MB).
", "ds_source": "Based on 2020 Google earth images, ASTER GDEM 30m data, combined with measured data.
", "ds_format": ".kmz,.shp, and.tif data formats", "ds_projection": "WGS84", "ds_space_res": "no", "ds_time_res": "no" } }, "license_type": null, "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": [ "高程", "数据大百科", "DEM", "流域", "水系" ], "ds_subject_tags": [ "地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "敦煌市", "甘肃省", "圈槽渠", "酒泉" ], "ds_time_tags": [ 2020 ], "ds_contributors": [ "桂东伟", "李伯騛" ], "ds_meta_authors": [ "桂东伟" ], "ds_managers": [ "李锦" ], "category": "水文" }