2012年7月25日，在黑河中上游的胡芦沟观测区域，利用运12飞机，搭载Leica公司生产的ALS70,开展了lidar航空遥感飞行试验。ALS70激光波长为1064nm，多次回波（1,2,3和末次）。
\n葫芦沟地区分为两个不同高度飞行区域，绝对航高为4800和5500米，平均点云密度为1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和DEM数据产品。
", "ds_source": "2012年7月25日，在黑河中上游的胡芦沟观测区域，利用运12飞机，搭载Leica公司生产的ALS70,开展了lidar航空遥感飞行试验。ALS70激光波长为1064nm，多次回波（1,2,3和末次）。
\n葫芦沟地区分为两个不同高度飞行区域，绝对航高为4800和5500米，平均点云密度为1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DEM和DSM数据产品。
", "ds_quality": "数据质量良好
", "ds_acq_start_time": "2012-07-25 00:00:00", "ds_acq_end_time": "2012-07-26 00:00:00", "ds_acq_place": "黑河流域, 上游寒区水文试验区, 葫芦沟小流域", "ds_acq_lon_east": 99.9, "ds_acq_lat_south": 38.2, "ds_acq_lon_west": 99.83, "ds_acq_lat_north": 38.269444444444446, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 209977344, "ds_files_count": 2, "ds_format": "las", "ds_space_res": "/", "ds_time_res": "时", "ds_coordinate": "WGS84", "ds_projection": "/", "ds_thumbnail": "613f4733-af27-4b3f-ac5c-4fd6f41774e0.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": "2021-08-27 09:51:09", "last_updated": "2025-05-29 16:23:45", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.NIEER.2021.1933", "i18n": { "en": { "title": "Heihe River eco hydrological remote sensing experiment: hulugou small watershed airborne lidar original data set (2012)", "ds_format": "las", "ds_source": "On July 25, 2012, lidar aerial remote sensing flight test was carried out in hulugou observation area in the middle and upper reaches of Heihe River by using Yun 12 aircraft and als70 produced by Leica company. The als70 laser has a wavelength of 1064nm and multiple echoes (1, 2, 3 and last)
\nHulugou area is divided into two flying areas with different altitudes. The absolute altitude is 4800 and 5500 meters, and the average point cloud density is 1 point / m2
", "ds_quality": "Good data quality
", "ds_ref_way": "", "ds_abstract": "On July 25, 2012, lidar aerial remote sensing flight test was carried out in hulugou observation area in the middle and upper reaches of Heihe River by using Yun 12 aircraft and als70 produced by Leica company. The als70 laser has a wavelength of 1064nm and multiple echoes (1, 2, 3 and last)
\nHulugou area is divided into two flying areas with different altitudes. The absolute altitude is 4800 and 5500 meters, and the average point cloud density is 1 point / m2. Through the steps of parameter calibration, automatic classification of point cloud and manual editing, DSM and DEM data products are finally formed
", "ds_time_res": "时", "ds_acq_place": "Heihe River Basin, upstream cold region, hydrological test area, hulugou small watershed", "ds_space_res": "/", "ds_projection": "/", "ds_process_way": "DEM and DSM data products are finally formed through the steps of parameter calibration, automatic classification of point cloud and manual editing
", "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, "ds_topic_tags": [ "航空遥感", "激光雷达" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "黑河流域", "葫芦沟小流域", "上游寒区水文试验区" ], "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" }, { "true_name": "闻建光", "email": "wenjg@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" }