2012年8月19日，在黑河中上游的核心观测区域，利用运12飞机，搭载Leica公司ALS70,开展了lidar航空遥感飞行试验。ALS70激光波长为1064纳米，多次回波（1,2,3和末次）。小沙漠地区飞行绝对航高2900米，平均点云密度 点/平方米。通过参数检校、点云自动分类和人工编辑等步骤，最终形成DSM数据产品。
", "ds_source": "2012年8月19日，在黑河中上游的核心观测区域，利用运12飞机，搭载Leica公司ALS70,开展了lidar航空遥感飞行试验。ALS70激光波长为1064纳米，多次回波（1,2,3和末次）。小沙漠地区飞行绝对航高2900米，平均点云密度 点/平方米。
", "ds_process_way": "通过参数检校、点云自动分类和人工编辑等步骤，最终形成DSM数据产品。
", "ds_quality": "数据质量良好
", "ds_acq_start_time": "2012-08-19 00:00:00", "ds_acq_end_time": "2012-08-20 00:00:00", "ds_acq_place": "黑河流域,中游人工绿洲试验区,神沙窝沙漠站", "ds_acq_lon_east": 100.48, "ds_acq_lat_south": 38.776666666666664, "ds_acq_lon_west": 100.46000000000001, "ds_acq_lat_north": 38.78, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 192642234, "ds_files_count": 2, "ds_format": "las", "ds_space_res": null, "ds_time_res": "时", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "73207b36-867e-4e66-a49f-b6a6d95c15d8.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "本数据由“黑河生态水文遥感试验（HiWATER）”产生，用户在使用数据时请在正文中明确声明数据的来源，并在参考文献部分引用本元数据提供的引用方式。", "ds_from_station": null, "organization_id": "c94b3578-20da-4346-9de9-c702b6ca8983", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2021-12-28 11:29:25", "last_updated": "2025-06-30 16:35:36", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.NIEER.2021.1755", "i18n": { "en": { "title": "Heihe River eco hydrological remote sensing experiment: Airborne Lidar DSM point cloud data of shenshawo desert in Heihe River Basin (August 19, 2012)", "ds_format": "las", "ds_source": "On August 19, 2012, lidar aerial remote sensing flight test was carried out in the core observation area in the middle and upper reaches of Heihe River by using Yun 12 aircraft and Leica company als70. The als70 laser has a wavelength of 1064 nm and multiple echoes (1, 2, 3 and last). The absolute flight height in small desert area is 2900m, and the average point cloud density is points/m2.
", "ds_quality": "Good data quality
", "ds_ref_way": "", "ds_abstract": "On August 19, 2012, lidar aerial remote sensing flight test was carried out in the core observation area in the middle and upper reaches of Heihe River by using Yun 12 aircraft and Leica company als70. The als70 laser has a wavelength of 1064 nm and multiple echoes (1, 2, 3 and last). The absolute flight height in small desert area is 2900m, and the average point cloud density is points / m2. DSM data products are finally formed through the steps of parameter calibration, automatic point cloud classification and manual editing
", "ds_time_res": "时", "ds_acq_place": "Heihe River Basin, artificial oasis experimental area in the middle reaches, shenshawo desert station", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Through steps such as parameter calibration, point cloud automatic classification, and manual editing, a DSM data product is ultimately formed
", "ds_ref_instruction": "This data is generated by \"Heihe eco hydrological remote sensing experiment (hiwater)\". When using the data, users should clearly state the source of the data in the text and quote the reference method provided by this metadata in the reference part." } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "DSM", "航空遥感产品", "激光雷达" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "神沙窝沙漠站", "黑河流域", "中游人工绿洲试验区" ], "ds_time_tags": [ 2012 ], "ds_contributors": [ { "true_name": "肖青", "email": "xiaoqing@irsa.ac.cn", "work_for": "中国科学院遥感与数字地球研究所", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "肖青", "email": "xiaoqing@irsa.ac.cn", "work_for": "中国科学院遥感与数字地球研究所", "country": "中国" } ], "ds_managers": [ { "true_name": "肖青", "email": "xiaoqing@irsa.ac.cn", "work_for": "中国科学院遥感与数字地球研究所", "country": "中国" } ], "category": "遥感及产品" }