{
    "created": "2025-04-03 19:29:41",
    "updated": "2026-05-09 15:00:00",
    "id": "26c93692-28e4-4578-9173-f989ead19a70",
    "version": 3,
    "ds_topic": null,
    "title_cn": "中亚1:25万湖泊与河流分布数据（2010年）",
    "title_en": "",
    "ds_abstract": "<p>本数据反映的是2010年中亚五国范围内的湖泊和河流水系分布情况，数据共有15358个河流湖泊面状矢量，属性表中包含所用TM数据源信息、湖泊或河流的面积、长度、中心点坐标等；投影坐标为GCS_WGS_1984，比例尺1：25万。</p>",
    "ds_source": "<p>2006、2007、2009和2010年每年丰水期7月、8月、9月、10月的TM遥感数据。</p>",
    "ds_process_way": "<p>利用ENVI、eCognition软件，通过选取对水体反映强烈的绿波段和近红外波段进行叠加计算，水体提取公式：TM2+TM3-TM4-TM5，在生成的矢量层下叠加TM数据，通过人工干预修正，生产最后的数据产品。</p>",
    "ds_quality": "<p>数据采集按照矢量化标准执行，严格按照TM数据进行修正。</p>",
    "ds_acq_start_time": "2006-09-06 00:00:00",
    "ds_acq_end_time": "2010-10-31 00:00:00",
    "ds_acq_place": "哈萨克斯坦；吉尔吉斯坦；塔吉克斯坦；乌兹别克斯坦；土库曼斯坦",
    "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": 23560014,
    "ds_files_count": 1,
    "ds_format": ".shp",
    "ds_space_res": "1：25万",
    "ds_time_res": "无",
    "ds_coordinate": "WGS84",
    "ds_projection": "WGS84",
    "ds_thumbnail": "26c93692-28e4-4578-9173-f989ead19a70.png",
    "ds_thumb_from": 2,
    "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": "2025-04-07 12:34:29",
    "first_publish_time": null,
    "last_updated": "2025-05-28 19:01:19",
    "protected": false,
    "protected_to": null,
    "lang": "zh",
    "cstr": "33110.11.ariddc.00333",
    "license": null,
    "extra": null,
    "files_shape": [
        {
            "name": "Lake_CA_2010.rar",
            "size": 23560014,
            "is_dir": false
        }
    ],
    "features": null,
    "data_level": 0,
    "ds_topic_tags": [
        "湖泊",
        "河流"
    ],
    "ds_subject_tags": [
        "地理学"
    ],
    "ds_class_tags": [],
    "ds_locus_tags": [
        "哈萨克斯坦",
        "塔吉克斯坦",
        "乌兹别克斯坦",
        "吉尔吉斯斯坦",
        "土库曼斯坦"
    ],
    "ds_time_tags": [
        2010
    ],
    "ds_contributors": [
        "李均力"
    ],
    "ds_meta_authors": [
        "李锦"
    ],
    "ds_managers": [
        "李锦"
    ],
    "category": "水文"
}