2012年7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）。中游地区飞行相对高度1500米（海拔高度2700米)，平均点云密度4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）。
", "ds_process_way": "中游地区飞行相对高度1500米（海拔高度2700米)，平均点云密度4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_quality": "数据质量良好
", "ds_acq_start_time": "2012-07-19 00:00:00", "ds_acq_end_time": "2012-07-19 00:00:00", "ds_acq_place": "黑河流域,中游人工绿洲试验区", "ds_acq_lon_east": 100.49, "ds_acq_lat_south": 38.769999999999996, "ds_acq_lon_west": 100.36999999999999, "ds_acq_lat_north": 39.0, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 5625439544, "ds_files_count": 261, "ds_format": "las", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "1ed7e4dd-8528-46fa-85d8-7ce5ade1544a.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": "2021-09-14 09:56:29", "last_updated": "2023-08-23 16:47:26", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.NIEER.2021.40", "i18n": { "en": { "title": "Heihe River eco hydrological remote sensing test: Airborne Lidar DEM point cloud data in the core test area in the middle reaches of Heihe River Basin (July 19, 2012)", "ds_format": "", "ds_source": "On July 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)", "ds_quality": "
Good data quality
", "ds_ref_way": "", "ds_abstract": "On July 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 relative flight altitude in the middle reaches is 1500 meters (altitude 2700 meters), and the average point cloud density is 4 points / 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": "", "ds_acq_place": "Heihe River Basin, middle reaches, artificial oasis, experimental area", "ds_space_res": "", "ds_projection": "", "ds_process_way": "The relative flight altitude in the middle reaches is 1500 meters (altitude 2700 meters), and the average point cloud density is 4 points / m2. 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": [ "遥感产品", "DEM", "参数检校" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "黑河流域", "中游人工绿洲试验区" ], "ds_time_tags": [ 2012 ], "ds_contributors": [ { "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": "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_managers": [ { "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" } ], "category": "遥感及产品" }