{
    "created": "2025-06-11 13:33:57",
    "updated": "2026-05-09 18:30:28",
    "id": "a4937820-3c55-489f-ad09-3c5e578f775e",
    "version": 0,
    "ds_topic": null,
    "title_cn": "阿克苏河流域高程分类数据集",
    "title_en": "",
    "ds_abstract": "<p>阿克苏河流域高程分类数据集是基于ASTER GDEM 30m数据研发的。根据区域高程数值，将1000 m以下区域划为一类；1000 m以上区域以500 m为间隔划分，一共划分为14种类型。最后，统计各个类型的面积及占的比例。结果表明，高程为1000-4000 m的区域占整个流域面积的84.77%。数据集存储为.tif格式，由7个数据文件组成，数据量为1.18 GB（压缩为1个文件，3.06 MB）。</p>",
    "ds_source": "<p>基于ASTER GDEM 30m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": 3217593,
    "ds_files_count": 1,
    "ds_format": ".tif数据格式",
    "ds_space_res": "无",
    "ds_time_res": "无",
    "ds_coordinate": "WGS84",
    "ds_projection": "WGS84",
    "ds_thumbnail": "a4937820-3c55-489f-ad09-3c5e578f775e.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": [
        "170.40"
    ],
    "quality_level": 1,
    "publish_time": "2025-06-11 13:35:03",
    "first_publish_time": null,
    "last_updated": "2025-06-11 13:35:03",
    "protected": false,
    "protected_to": null,
    "lang": "zh",
    "cstr": null,
    "license": null,
    "extra": null,
    "files_shape": [
        {
            "name": "ELVC_AKSU.rar",
            "size": 3217593,
            "is_dir": false
        }
    ],
    "features": null,
    "data_level": 0,
    "ds_topic_tags": [
        "数据大百科",
        "绿洲",
        "高程",
        "DEM"
    ],
    "ds_subject_tags": [
        "地图学"
    ],
    "ds_class_tags": [],
    "ds_locus_tags": [
        "新疆",
        "阿克苏河流域"
    ],
    "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"
}