伊吾绿洲位于新疆维吾尔自治区哈密市伊吾县境内。它由13个分散的小片绿洲组成，地理位置是43°02′53″N-43°51′31″N, 94°05′46″E-95°20′56″E。绿洲总面积为499.00 km²（Albers投影），总周长为481.13 km（Lambert投影）。其中，最大绿洲的面积为283.11 km²，周长为183.93 km。滋养伊吾绿洲的河流主要有阿勒吞昆多河、伊吾河、吐尔干河，它们的干流长度分别为76.44 km、49.97 km、35.47 km。伊吾诸河流域山区部分的地理位置是42°58′35″N-43°39′58″N，93°46′05″E-94°53′50″E。它的面积为3203.69 km²，是伊吾绿洲总面积的6.4倍。伊吾诸河流域山区部分根据高程共划分为9类。该数据集基于2020年Google Earth米级分辨率影像，结合ASTER GDEM 30 m数据和实测数据研发得到。数据集内容包括：（1）伊吾绿洲边界数据；（2）滋养绿洲的水系数据；（3）伊吾诸河流域山区部分的边界数据；（4）伊吾诸河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62个数据文件组成，数据量为7.88 MB（压缩为5个文件，5.31 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": 5568740, "ds_files_count": 5, "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": "7e6b8894-b1f4-4a52-a284-e09aca8be364.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 18:37:26", "first_publish_time": null, "last_updated": "2025-06-12 18:37:26", "protected": false, "protected_to": null, "lang": "zh", "cstr": null, "license": null, "extra": null, "files_shape": [ { "name": "MontPartofYiwuRiverCatchment.kmz", "size": 360121, "is_dir": false }, { "name": "TuolekuleLake.kmz", "size": 145895, "is_dir": false }, { "name": "YiwuOasis.kmz", "size": 1128775, "is_dir": false }, { "name": "YiwuOasisRiversCatchmentEVC.rar", "size": 3206323, "is_dir": false }, { "name": "YiwuRiverSystem.kmz", "size": 727626, "is_dir": false } ], "features": null, "data_level": 0, "i18n": { "en": { "title": "Yiwu Oasis, Water System, Watershed (Mountain Area) and Elevation Classification Data Set", "ds_abstract": "Yiwu Oasis is located in Yiwu County, Hami City, Xinjiang Uygur Autonomous Region. It consists of 13 scattered small oases, with geographical locations ranging from 43°02′53″N to 43°51′31″N, 94°05′46″E to 95°20′56″E. The total area of the oasis is 499.00 km² (Albers projection) and the total circumference is 481.13 km (Lambert projection). Among them, the largest oasis has an area of 283.11 km² and a circumference of 183.93 km. The rivers that nourish the Yiwu Oasis mainly include the Altun Kundo River, Yiwu River and Tuergan River, with their main streams of 76.44 km, 49.97 km and 35.47 km respectively. The geographical location of the mountainous part of the Yiwu River Basin is 42°58′35″N-43°39′58″N, 93°46′05″E-94°53′50″E. Its area is 3,203.69 km2, which is 6.4 times the total area of Yiwu Oasis. The mountainous parts of the Yiwu River Basin are divided into 9 categories based on elevation. The dataset is developed based on the 2020 Google Earth meter-level resolution image, combined with ASTER GDEM 30m data and measured data. The data set includes: (1) boundary data of Yiwu Oasis;(2) water system data that nourish the oasis;(3) boundary data of mountainous parts of Yiwu River Basin; and (4) elevation classification data of mountainous parts of Yiwu River Basin. The dataset is stored in.kmz,.shp, and.tif data formats and consists of 62 data files with a data volume of 7.88 MB (compressed into 5 files, 5.31 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": [ "数据大百科", "高程", "流域", "DEM", "水系" ], "ds_subject_tags": [ "地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "吐尔干河", "阿勒吞昆多河", "伊吾河", "新疆" ], "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" }