{
    "created": "2024-09-25 12:19:35",
    "updated": "2026-05-09 12:45:15",
    "id": "bccc12fa-0ba5-47d1-a71f-8bf51366fd75",
    "version": 4,
    "ds_topic": null,
    "title_cn": "2018年咸海流域土地利用数据",
    "title_en": "",
    "ds_abstract": "<p>本数据是2018年咸海流域土地利用矢量数据，是基于2018年6月20日至2018年7月30日的200米、500米和1000米分辨率的Landsat8卫星数据为数据源，经过自动解译分类之后得到的矢量数据，投影坐标为GCS_WGS1984，共233760个矢量图斑，没有经过人工解译、地面验证和高精度验证等处理过程。土地利用类型分为草地，荒漠，建设用地，耕地，水体，永久性积雪，林地和盐碱地8大类。</p>",
    "ds_source": "<p>以Landsat8卫星数据为数据源：\nlandsat8-200-180620-180731.tif；\nlandsat8-500-180620-180730.tif；\nlandsat8-1000-180620-180730.tif\n</p>",
    "ds_process_way": "<p>自动解译分类。</p>",
    "ds_quality": "<p>没有经过人工解译、地面验证和高精度验证等处理过程。</p>",
    "ds_acq_start_time": "2018-01-01 00:00:00",
    "ds_acq_end_time": "2018-12-31 00:00:00",
    "ds_acq_place": "咸海流域",
    "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": "离线申请",
    "ds_total_size": 24658955,
    "ds_files_count": 1,
    "ds_format": "shp",
    "ds_space_res": "无",
    "ds_time_res": "无",
    "ds_coordinate": "WGS84",
    "ds_projection": "WGS84",
    "ds_thumbnail": "bccc12fa-0ba5-47d1-a71f-8bf51366fd75.png",
    "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": "2025-04-01 13:11:32",
    "first_publish_time": null,
    "last_updated": "2025-05-28 17:42:28",
    "protected": false,
    "protected_to": null,
    "lang": "zh",
    "cstr": "33110.11.ariddc.00129",
    "license": null,
    "extra": null,
    "files_shape": [
        {
            "name": "2018年咸海流域土地利用矢量数据.rar",
            "size": 24658955,
            "is_dir": false
        }
    ],
    "features": null,
    "data_level": 0,
    "ds_topic_tags": [
        "土地利用",
        "土地覆被"
    ],
    "ds_subject_tags": [
        "地图学"
    ],
    "ds_class_tags": [],
    "ds_locus_tags": [
        "咸海"
    ],
    "ds_time_tags": [
        2018
    ],
    "ds_contributors": [
        "钱静",
        "刘铁"
    ],
    "ds_meta_authors": [
        "李锦"
    ],
    "ds_managers": [
        "刘铁"
    ],
    "category": "土地利用/土地覆被"
}