下游航空遥感试验期间，开展了飞行时黑白布同步光谱观测以及典型下垫面地物波谱观测，为航空飞行资料预处理提供基础数据集。\n
\n1、 观测仪器\n
\n中科院寒旱所PRS-3500野外便携式地物光谱仪（光谱范围：350-2500nm）以及参考板。\n
\n2、 下垫面及观测方式\n
\n下垫面包括：黑白布、哈密瓜、柽柳、胡杨、芦苇、杂草、花花柴、沙土、戈壁、苦豆子等；\n
\n测量地物前先垂直测量参考板反射率，再垂直测量地物反射率，每种地物测量5条光谱反射率。\n
\n3、 观测时间及内容\n
\n2014年7月24日：典型地物光谱观测\n
\n2014年7月27日：典型地物光谱观测\n
\n2014年7月29日：黑白布光谱同步观测\n
\n2014年7月31日：典型地物光谱观测\n
\n4、 数据存储\n
\n本数据集包括光谱仪导出的*.sed格式的光谱数据（可用PRS-3500配套软件打开，也可用记事本直接打开）、Excel格式观测记录表以及下垫面照片。
", "ds_source": "下游航空遥感试验期间，开展了飞行时黑白布同步光谱观测以及典型下垫面地物波谱观测，为航空飞行资料预处理提供基础数据集。
", "ds_process_way": "1、 观测仪器\n
\n中科院寒旱所PRS-3500野外便携式地物光谱仪（光谱范围：350-2500nm）以及参考板。\n
\n2、 下垫面及观测方式\n
\n下垫面包括：黑白布、哈密瓜、柽柳、胡杨、芦苇、杂草、花花柴、沙土、戈壁、苦豆子等；\n
\n测量地物前先垂直测量参考板反射率，再垂直测量地物反射率，每种地物测量5条光谱反射率。\n
\n3、 观测时间及内容\n
\n2014年7月24日：典型地物光谱观测\n
\n2014年7月27日：典型地物光谱观测\n
\n2014年7月29日：黑白布光谱同步观测\n
\n2014年7月31日：典型地物光谱观测\n
\n4、 数据存储\n
\n本数据集包括光谱仪导出的*.sed格式的光谱数据（可用PRS-3500配套软件打开，也可用记事本直接打开）、Excel格式观测记录表以及下垫面照片。
", "ds_quality": "数据质量良好
", "ds_acq_start_time": "2014-07-24 00:00:00", "ds_acq_end_time": "2014-07-31 00:00:00", "ds_acq_place": "黑河流域,下游天然绿洲试验区", "ds_acq_lon_east": 101.31666666666666, "ds_acq_lat_south": 41.85, "ds_acq_lon_west": 100.95, "ds_acq_lat_north": 42.516666666666666, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 223510474, "ds_files_count": 333, "ds_format": "txt", "ds_space_res": null, "ds_time_res": "时", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "37c0f29b-6be9-4bfd-970c-e1fb25b58916.png", "ds_thumb_from": 2, "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": [ "170.45" ], "quality_level": 3, "publish_time": "2021-09-14 09:57:09", "last_updated": "2023-08-23 16:47:47", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.NIEER.2021.24", "i18n": { "en": { "title": "Heihe River eco hydrological remote sensing experiment: spectral observation data set of ground features in the lower reaches of Heihe River (2014)", "ds_format": "", "ds_source": "During the downstream aerial remote sensing test, the black-and-white synchronous spectrum observation during flight and the spectrum observation of surface features on the typical underlying surface were carried out to provide a basic data set for the preprocessing of aerial flight data
", "ds_quality": "Good data quality
", "ds_ref_way": "", "ds_abstract": "During the downstream aerial remote sensing test, the black-and-white synchronous spectrum observation during flight and the spectrum observation of surface features on the typical underlying surface were carried out to provide a basic data set for the preprocessing of aerial flight data.\n
\n1. Observation instrument\n
\nPrs-3500 field portable ground object spectrometer (spectral range: 350-2500nm) and reference plate of Institute of cold and drought, Chinese Academy of Sciences.\n
\n2. Underlying surface and observation method\n
\nThe underlying surface includes black and white cloth, Hami melon, Tamarix, Populus euphratica, reeds, weeds, flowers and firewood, sandy soil, Gobi, bitter beans, etc;\n
\nBefore measuring ground objects, the reflectivity of the reference plate shall be measured vertically, and then the reflectivity of ground objects shall be measured vertically. Each ground object shall be measured with 5 spectral reflectances.\n
\n3. Observation time and content\n
\nJuly 24, 2014: spectral observation of typical features\n
\nJuly 27, 2014: spectral observation of typical features\n
\nJuly 29, 2014: synchronous observation of black-and-white light spectrum\n
\nJuly 31, 2014: spectral observation of typical features\n
\n4. Data storage\n
\nThis data set includes the spectral data in *. Sed format exported by the spectrometer (which can be opened with prs-3500 supporting software or directly with Notepad), observation record sheet in Excel format and underlying surface photos
", "ds_time_res": "时", "ds_acq_place": "Heihe River Basin, downstream natural oasis, experimental area", "ds_space_res": "", "ds_projection": "", "ds_process_way": "1. Observation instrument\n
\nPrs-3500 field portable ground object spectrometer (spectral range: 350-2500nm) and reference plate of Institute of cold and drought, Chinese Academy of Sciences.\n
\n2. Underlying surface and observation method\n
\nThe underlying surface includes black and white cloth, Hami melon, Tamarix, Populus euphratica, reeds, weeds, flowers and firewood, sandy soil, Gobi, bitter beans, etc;\n
\nBefore measuring ground objects, the reflectivity of the reference plate shall be measured vertically, and then the reflectivity of ground objects shall be measured vertically. Each ground object shall be measured with 5 spectral reflectances.\n
\n3. Observation time and content\n
\nJuly 24, 2014: spectral observation of typical features\n
\nJuly 27, 2014: spectral observation of typical features\n
\nJuly 29, 2014: synchronous observation of black-and-white light spectrum\n
\nJuly 31, 2014: spectral observation of typical features\n
\n4. Data storage\n
\nThis data set includes the spectral data in *. Sed format exported by the spectrometer (which can be opened with prs-3500 supporting software or directly with Notepad), observation record sheet in Excel format and underlying surface photos
", "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, "is_paper_in_submitting": false, "ds_topic_tags": [ "反射率", "地物光谱", "植被" ], "ds_subject_tags": [ "地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "黑河流域", "下游天然绿洲试验区" ], "ds_time_tags": [ 2014 ], "ds_contributors": [ { "true_name": "耿丽英", "email": "gengly02@163.com", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "耿丽英", "email": "gengly02@163.com", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "ds_managers": [ { "true_name": "耿丽英", "email": "gengly02@163.com", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "category": "遥感及产品" }