2012年7月25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）。上游天姥池飞行区域，绝对航高为4800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DEM和DSM数据产品。
", "ds_source": "2012年7月25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1064nm，多次回波（1,2,3和末次）。上游葫芦沟飞行区域，绝对航高为4800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,天姥池小流域", "ds_acq_lon_east": 99.95, "ds_acq_lat_south": 38.36666666666667, "ds_acq_lon_west": 99.9, "ds_acq_lat_north": 38.44, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 562774218, "ds_files_count": 2, "ds_format": "las", "ds_space_res": null, "ds_time_res": "时", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "350c42ba-a22f-4b7a-a7ee-48501daa6acb.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": null, "quality_level": 3, "publish_time": "2021-08-27 16:44:10", "last_updated": "2023-08-23 16:47:37", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.NIEER.2021.1881", "i18n": { "en": { "title": "Heihe River eco hydrological remote sensing experiment: Airborne Lidar DEM point cloud data set of tianmuchi small watershed (2012)", "ds_format": "", "ds_source": "On July 25, 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 1064nm and multiple echoes (1, 2, 3 and last). In the upstream hulugou flight area, the absolute altitude is 4800m, 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 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). In the flight area of tianmuchi in the upstream, the absolute altitude is 4800m, and the average point cloud density is 1 point / m2. DEM and DSM data products are finally formed through the steps of parameter calibration, automatic classification of point cloud and manual editing
", "ds_time_res": "时", "ds_acq_place": "Heihe River Basin, upstream cold region, hydrological test area, tianmuchi 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": " \nThis 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": [ "激光雷达", "航空遥感产品", "DSM" ], "ds_subject_tags": [ "水文气象学" ], "ds_class_tags": [], "ds_locus_tags": [ "黑河流域", "天姥池小流域", "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" } ], "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" }