{
    "created": "2024-09-25 13:06:40",
    "updated": "2026-05-09 17:36:11",
    "id": "6dad8e57-75ba-4926-872b-11f63e3f4f57",
    "version": 6,
    "ds_topic": null,
    "title_cn": "2008年中亚和新疆范围90米DEM数据集",
    "title_en": "",
    "ds_abstract": "<p>本数据集为中国新疆和中亚五国范围内90m高程裁切数据，是基于CGIAR-CSI 90m SRTM数据（第4版），经过中亚五国和新疆范围界线裁切处理得到的，空间分辨率90米，投影坐标为GCS-WGS84，数据以ENVI标准格式栅格数据格式存储。。</p>",
    "ds_source": "<p>数据来自国际农业研究咨询组织空间咨询团体(CGIAR-CSI)(http://srtm.csi.cgiar.org/)的SRTM 90m Digital Elevation Data。SRTM 90m Digital Elevation Data数据集（第4版）是基于美国宇航局发布并由美国地质调查局通过ftp访问分发的3级弧秒SRTM数据制作的（ftp//edcsgs9.cr.usgs.gov/pub/data/srtm/version1/）。CGIAR-CSI SRTM数据集对NASA数据进行了后处理，以通过插值技术“填补”无数据空白。其结果是无缝、完整地覆盖全球的海拔。\nSRTM 90m Digital Elevation Data数据集引用方式：Jarvis A., H.I. Reuter, A. Nelson, E. Guevara, 2008, Hole-filled seamless SRTM data V4, International Centre for Tropical Agriculture (CIAT), available from https://srtm.csi.cgiar.org. 参考文献引用：Reuter H.I, A. Nelson, A. Jarvis, 2007, An evaluation of void filling interpolation methods for SRTM data, International Journal of Geographic Information Science, 21:9, 983-1008.。</p>",
    "ds_process_way": "<p>以5°×5°图块大小，Geo TIFF文件格式下载中亚和新疆范围的DEM数据，数据投影坐标GCS-WGS84；数据在ENVI5.0中进行镶嵌mosaic和裁剪subset by roi处理,背景值设定为0，经过格式转换生成ENVI格式数据。</p>",
    "ds_quality": "<p>数据精度保持不变。</p>",
    "ds_acq_start_time": "2008-01-01 00:00:00",
    "ds_acq_end_time": "2008-12-31 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；中国新疆",
    "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": 477991115,
    "ds_files_count": 1,
    "ds_format": "ENVI",
    "ds_space_res": "90",
    "ds_time_res": "无",
    "ds_coordinate": "WGS84",
    "ds_projection": "WGS84",
    "ds_thumbnail": "6dad8e57-75ba-4926-872b-11f63e3f4f57.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": [
        "170.40"
    ],
    "quality_level": 1,
    "publish_time": "2024-09-30 16:43:12",
    "first_publish_time": "2024-09-30 16:43:12",
    "last_updated": "2025-03-28 16:04:10",
    "protected": false,
    "protected_to": null,
    "lang": "zh",
    "cstr": "33110.11.ariddc.00134",
    "license": null,
    "extra": null,
    "files_shape": [
        {
            "name": "2008年中亚和新疆范围90米DEM数据集.rar",
            "size": 477991115,
            "is_dir": false
        }
    ],
    "features": null,
    "data_level": 0,
    "ds_topic_tags": [
        "数字高程模型",
        "DEM"
    ],
    "ds_subject_tags": [
        "地图学"
    ],
    "ds_class_tags": [],
    "ds_locus_tags": [
        "哈萨克斯坦",
        "塔吉克斯坦",
        "吉尔吉斯斯坦",
        "乌兹别克斯坦",
        "土库曼斯坦",
        "中国新疆"
    ],
    "ds_time_tags": [
        2008
    ],
    "ds_contributors": [
        "陈曦",
        "李宏"
    ],
    "ds_meta_authors": [
        "李宏"
    ],
    "ds_managers": [
        "李锦"
    ],
    "category": "DEM数字高程"
}