2012年7月19日，在黑河中游核心观测区域，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，记录多次回波（1,2,3和末次）。中游地区飞行绝对航高2700米（地面最低点1412米，地面最高点1655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DSM和DEM数据产品。
", "ds_source": "ALS70激光波长为1064nm，记录多次回波（1,2,3和末次）。中游地区飞行绝对航高2700米（地面最低点1412米，地面最高点1655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DSM和DEM数据产品。
", "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和DEM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": "2012-07-20 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": 40518217995, "ds_files_count": 40, "ds_format": "las", "ds_space_res": null, "ds_time_res": "时", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "6e3cf166-10ea-492b-af3d-0462e5eee39c.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 09:57:30", "last_updated": "2023-08-23 16:47:46", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.NIEER.2021.26", "i18n": { "en": { "title": "Heihe River eco hydrological remote sensing test: Airborne Lidar raw data set of the core test area in the middle reaches of Heihe River Basin (2012)", "ds_format": "", "ds_source": "The als70 laser wavelength was 1064nm, and multiple echoes (1, 2, 3 and the last) were recorded. The absolute flight height in the middle reaches is 2700m (1412m at the lowest point on the ground and 1655m at the highest point on the ground), and the average point cloud density is 4 points / m2. Through the steps of parameter calibration, automatic classification of point cloud and manual editing, DSM and DEM data products are finally formed.
", "ds_quality": "The data quality is good.
", "ds_ref_way": "", "ds_abstract": "On July 19, 2012, lidar aerial remote sensing flight test was carried out in the core observation area of the middle reaches of Heihe River by using Yun 12 aircraft and als70 produced by Leica company. The als70 laser wavelength was 1064nm, and multiple echoes (1, 2, 3 and the last) were recorded. The absolute flight height in the middle reaches is 2700m (1412m at the lowest point on the ground and 1655m at the highest point on the ground), and the average point cloud density is 4 points / 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": "Experimental area of artificial oasis in Heihe River Basin and middle reaches", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Through the steps of parameter calibration, automatic classification of point cloud and manual editing, DSM and DEM data products are finally formed
", "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, "recommendation_value": 0, "license_type": "https://creativecommons.org/licenses/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, "belong_to_nieer": false, "ds_topic_tags": [ "激光雷达", "航空遥感", "飞行试验" ], "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": "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" }