{
    "created": "2025-06-11 16:05:43",
    "updated": "2026-05-09 12:45:47",
    "id": "741d7674-f553-4d14-9b15-e9070e0e835c",
    "version": 3,
    "ds_topic": null,
    "title_cn": "伊犁绿洲、水系与高程分类数据集",
    "title_en": "",
    "ds_abstract": "<p>伊犁河谷绿洲（Yili Oasis）位于我国新疆维吾尔自治区伊犁哈萨克自治州境内。基于Google Earth影像研发的数据表明，绿洲范围是43°17′18″N-44°24′24″N,80°23′12″E-84°13′38″E。基于Albers投影计算的绿洲总面积为9929.19 km²，基于Lambert投影计算的绿洲总周长为2666.09 km。滋养伊犁河谷绿洲的河流包括特克斯河、喀什河、巩乃斯河、库克苏河和伊犁河，它们的干流长度分别为411.26 km、303.00 km、234.83 km、 198.14 km和192.75 km。伊犁河集水区（Yili River Catchment）是维持伊犁河谷绿洲存在的诸河流的汇水区。它的具体位置是42°15′31″N-44°50′31″N，79°23′11″E-84°59′58″E。该集水区面积为62713.63 km²，集水区边界长度为1719.72 km。集水区高程分类数据集是基于ASTER GDEM 30 m数据研发的。高程500 m以下为一种类型，向上每间隔500 m划为一类，一共13种类型。该数据集内容包括：（1）中国境内的伊犁河谷绿洲边界数据；（2）滋养绿洲的水系数据；（3）集水区边界数据；（4）集水区高程分类数据。数据集存储为.kmz、.shp与.tif格式，由43个数据文件组成，数据量为70.1 MB（压缩为4个文件，46.5 MB）。</p>",
    "ds_source": "<p>基于ASTER GDEM 30 m数据。</p>",
    "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": "在线下载",
    "ds_total_size": 48777745,
    "ds_files_count": 4,
    "ds_format": ".kmz与.shp数据格式",
    "ds_space_res": "无",
    "ds_time_res": "无",
    "ds_coordinate": "WGS84",
    "ds_projection": "WGS84",
    "ds_thumbnail": "741d7674-f553-4d14-9b15-e9070e0e835c.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": "2025-06-11 16:27:20",
    "first_publish_time": null,
    "last_updated": "2025-06-11 17:06:10",
    "protected": false,
    "protected_to": null,
    "lang": "zh",
    "cstr": null,
    "license": null,
    "extra": null,
    "files_shape": [
        {
            "name": "YiliOasisRelated.rar",
            "size": 29444389,
            "is_dir": false
        },
        {
            "name": "YiliRiverCatchment.kmz",
            "size": 4322564,
            "is_dir": false
        },
        {
            "name": "YiliRiverOasis.kmz",
            "size": 9291641,
            "is_dir": false
        },
        {
            "name": "YiliRiverSystem.kmz",
            "size": 5719151,
            "is_dir": false
        }
    ],
    "features": null,
    "data_level": 0,
    "ds_topic_tags": [
        "数据大百科",
        "绿洲",
        "集水区",
        "高程",
        "DEM"
    ],
    "ds_subject_tags": [
        "地理学"
    ],
    "ds_class_tags": [],
    "ds_locus_tags": [
        "新疆",
        "伊犁河",
        "特克斯河",
        "巩乃斯河"
    ],
    "ds_time_tags": [],
    "ds_contributors": [
        "桂东伟",
        "李伯騛"
    ],
    "ds_meta_authors": [
        "桂东伟"
    ],
    "ds_managers": [
        "李锦"
    ],
    "category": "土地利用/土地覆被"
}