{
    "created": "2024-09-24 11:04:50",
    "updated": "2026-05-09 18:30:28",
    "id": "40f85e4f-5f76-4c85-bece-a6ea3e2b511f",
    "version": 7,
    "ds_topic": null,
    "title_cn": "2019年塔吉克斯坦草地生态样方无人机遥感正射影像数据集",
    "title_en": "",
    "ds_abstract": "<p>本数据集包含2019年塔吉克斯坦Luchob、Blakhi生态样方正射影像数据，投影坐标系统采用WGS_1984_UTM_Zone_42N，比例尺1:500，Luchob测区飞行面积5.5km2，航摄分辨率6cm，Blakhi测区飞行面积15.8 km2，航摄分辨率7cm，数据覆盖样地和旁边的村落。</p>",
    "ds_source": "<p>原始无人机数据采集工作由塔吉克斯坦科学院Mustafo·Safarov和助手Azaz于2019年5月31日至2019年6月1日共同完成。</p>",
    "ds_process_way": "<p>1、无人机数据采集过程：\n飞行采用电动固定翼无人机，搭载可见光航摄仪Sony RX-1R，镜头焦距35mm，像元尺寸：5.9μm；地面分辨率0.1m，相对飞行高度480m至720m，重叠度航向60%，旁向80%。\n2、正射影像数据处理过程：\n将原始无人机影像数据进行数据整理，将解算好的POS数据放入PIX4D软件中进行影像匹配和自由网空三加密计算，生成密集点云，然后基于密集点云数据生成数字表面模型（DSM），最后通过正射纠正和镶嵌处理生成测区的数字正射影像(DOM)，数据成果没有做分幅处理。\n</p>",
    "ds_quality": "<p>无人机采集过程遵守《低空数字航摄与数据处理规范GB/T 39612-2020》；\n数据处理过程遵守《CH/T 9008.3 - 基础地理信息数字成果 1∶500 1∶1 000 1∶2 000 数字正射影像图》和《GB/T 39608 - 基础地理信息数字成果元数据》。\n</p>",
    "ds_acq_start_time": "2019-05-31 00:00:00",
    "ds_acq_end_time": "2019-06-01 00:00:00",
    "ds_acq_place": "塔吉克斯坦Blakhi和Luchob样地",
    "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": 16043648430,
    "ds_files_count": 2,
    "ds_format": "栅格数据",
    "ds_space_res": "0.6",
    "ds_time_res": "月",
    "ds_coordinate": "WGS84",
    "ds_projection": "UTM",
    "ds_thumbnail": "40f85e4f-5f76-4c85-bece-a6ea3e2b511f.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": [
        "170.45"
    ],
    "quality_level": 1,
    "publish_time": "2025-03-21 18:54:03",
    "first_publish_time": null,
    "last_updated": "2025-03-22 18:56:52",
    "protected": false,
    "protected_to": null,
    "lang": "zh",
    "cstr": "33110.11.ariddc.00117",
    "license": null,
    "extra": null,
    "files_shape": [
        {
            "name": "TJK_Blakhi_20190531-data.rar",
            "size": 11569525771,
            "is_dir": false
        },
        {
            "name": "TJK_Luchob_20190601-data.rar",
            "size": 4474122659,
            "is_dir": false
        }
    ],
    "features": null,
    "data_level": 0,
    "ds_topic_tags": [
        "无人机",
        "正射影像",
        "低空航摄"
    ],
    "ds_subject_tags": [
        "地理学"
    ],
    "ds_class_tags": [],
    "ds_locus_tags": [
        "塔吉克斯坦"
    ],
    "ds_time_tags": [
        2019
    ],
    "ds_contributors": [
        "王伟胜",
        "李耀明"
    ],
    "ds_meta_authors": [
        "李锦"
    ],
    "ds_managers": [
        "李耀明"
    ],
    "category": "无人机遥感"
}