2012年7月19日，在黑河中游的核心试验区获取了机载激光LIDAR数据，可以提供高空间分辨率（米级）和高精度（20cm)的地表高程信息。 通过对机载激光雷达数据处理分别生成了DEM，DSM和点云密度图，在此基础上将DSM与DEM直接相减，得到黑河流域中游核心试验区植被高度产品，产品总体精度为88%。
", "ds_source": "机载激光LIDAR数据，可以提供高空间分辨率（米级）和高精度（20cm)的地表高程信息。
", "ds_process_way": "通过对机载激光雷达数据处理分别生成了DEM，DSM和点云密度图，在此基础上将DSM与DEM直接相减，得到黑河流域中游核心试验区植被高度产品，产品总体精度为88%。
", "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": 100.5, "ds_acq_lat_south": 38.7, "ds_acq_lon_west": 100.26666666666667, "ds_acq_lat_north": 39.0, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 2054050091, "ds_files_count": 3, "ds_format": "las", "ds_space_res": null, "ds_time_res": "时", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "2239eaaa-3d10-4cbf-83ad-19871804e07c.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 09:55:40", "last_updated": "2023-08-23 16:47:30", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.NCDC.NIEER.DB2856.2023", "i18n": { "en": { "title": "Heihe River eco hydrological remote sensing test: vegetation height products in the core test area in the middle reaches of Heihe River Basin (July 19, 2012)", "ds_format": "", "ds_source": "Airborne laser lidar data can provide surface elevation information with high spatial resolution (meter level) and high precision (20cm).
", "ds_quality": "Good data quality.
", "ds_ref_way": "", "ds_abstract": "On July 19, 2012, airborne laser lidar data were obtained in the core test area in the middle reaches of Heihe River, which can provide surface elevation information with high spatial resolution (meter level) and high precision (20cm). DEM, DSM and point cloud density maps are generated through airborne lidar data processing. On this basis, DSM and DEM are directly subtracted to obtain the vegetation height product in the core test area in the middle reaches of Heihe River Basin, and the overall accuracy of the product is 88%.
", "ds_time_res": "时", "ds_acq_place": "Heihe River Basin, middle reaches, artificial oasis, experimental area", "ds_space_res": "", "ds_projection": "", "ds_process_way": "DEM, DSM and point cloud density maps are generated through airborne lidar data processing. On this basis, DSM and DEM are directly subtracted to obtain the vegetation height product in the core test area in the middle reaches of Heihe River Basin, and the overall accuracy of the product is 88%.
", "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", "生态遥感产品", "植被高度产品" ], "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" }