本数据为在盈科绿洲与花寨子荒漠加密观测区测量的BRDF数据集。数据测量从2008年5月30号开始。\n
\n测量仪器与原理：利用ASD（Analytical Sepctral Devices）光谱仪测量了盈科绿洲与花寨子荒漠加密观测区典型地物的冠层BRDF。测量基本原理为：R =（DN1/DN0）×R0。式中R0和DN0分别为参考反射灰板的定标光谱反射率和测量所得DN值；DN1为测量目标所得DN值。 \n
\n测量方式：以主平面和垂直主平面观测为主，对于行播玉米（盈科绿洲玉米地）和小麦（盈科小麦地）还观测了垂直垄和平行垄。以10°为间隔测量-60°~60°之间的方向反射率。自制多角度观测架最大测量高度可达5m，当利用视场为25°的ASD光谱仪观测时，地面范围半径可达1.1米，2m高的玉米观测半径0.67m,基本能够反映地物的行播结构特征。\n
\n测量时间：2008-05-30，2008-06-09，2008-06-14，2008-06-20，2008-06-22，2008-06-26，2008-06-30，2008-07-01与各种机载（红外广角双模式成像仪WiDAS、成像光谱仪OMIS-II）和星载传感器同步。\n
\n数据处理：BRDF数据集包括原始数据与记录数据、处理后的BRDF数据。处理后的数据以Excel保存，文件中包括角度信息和反射率信息。
", "ds_source": "本数据为在盈科绿洲与花寨子荒漠加密观测区测量的BRDF数据集。数据测量从2008年5月30号开始。
", "ds_process_way": "测量仪器与原理：利用ASD（Analytical Sepctral Devices）光谱仪测量了盈科绿洲与花寨子荒漠加密观测区典型地物的冠层BRDF。测量基本原理为：R =（DN1/DN0）×R0。式中R0和DN0分别为参考反射灰板的定标光谱反射率和测量所得DN值；DN1为测量目标所得DN值。
\n测量方式：以主平面和垂直主平面观测为主，对于行播玉米（盈科绿洲玉米地）和小麦（盈科小麦地）还观测了垂直垄和平行垄。以10°为间隔测量-60°~60°之间的方向反射率。自制多角度观测架最大测量高度可达5m，当利用视场为25°的ASD光谱仪观测时，地面范围半径可达1.1米，2m高的玉米观测半径0.67m,基本能够反映地物的行播结构特征。
\n测量时间：2008-05-30，2008-06-09，2008-06-14，2008-06-20，2008-06-22，2008-06-26，2008-06-30，2008-07-01与各种机载（红外广角双模式成像仪WiDAS、成像光谱仪OMIS-II）和星载传感器同步。
", "ds_quality": "数据质量良好
", "ds_acq_start_time": "2008-05-30 00:00:00", "ds_acq_end_time": "2008-07-01 00:00:00", "ds_acq_place": "黑河流域,花寨子荒漠加密观测区,中游干旱区水文试验区,盈科绿洲加密观测区", "ds_acq_lon_east": 100.44305555555556, "ds_acq_lat_south": 38.04333333333333, "ds_acq_lon_west": 100.58972222222222, "ds_acq_lat_north": 38.973888888888894, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 140059603, "ds_files_count": 2, "ds_format": "excel,word", "ds_space_res": null, "ds_time_res": "日", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "947ad780-cb86-4a6c-b836-d7399d627f97.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "本数据由“黑河综合遥感联合试验”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": "14df1d8b-6362-4c0f-b88e-b46d4abe5db9", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "10.12072/ncdc.NIEER.db1779.2022", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2022-03-14 15:03:47", "last_updated": "2023-08-22 15:01:26", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.NIEER.2021.1745", "i18n": { "en": { "title": "Heihe comprehensive remote sensing joint experiment: BRDF observation data set of Yingke oasis and huazhaizi desert intensive observation area (2008)", "ds_format": "excel,word", "ds_source": "This data is the BRDF data set measured in Yingke oasis and huazhaizi desert intensive observation area. Data measurement began on May 30, 2008.", "ds_quality": "
Good data quality
", "ds_ref_way": "", "ds_abstract": "This data is the BRDF data set measured in Yingke oasis and huazhaizi desert intensive observation area. Data measurement began on May 30, 2008.\n
\nMeasuring instrument and principle: the canopy BRDF of typical features in Yingke oasis and huazhaizi desert intensive observation area was measured by ASD (analytical Sepctral devices) spectrometer. The basic principle of measurement is: r = (DN1 / dn0) × R0。 Where R0 and dn0 are the calibrated spectral reflectance of the reference reflective gray plate and the measured DN value respectively; DN1 is the DN value obtained from the measurement target.\n
\nMeasurement method: the main plane and vertical main plane were mainly observed, and the vertical ridge and parallel ridge were also observed for row sowing corn (Yingke oasis corn field) and wheat (Yingke wheat field). Measure the directional reflectance between - 60 ° and 60 ° at 10 ° intervals. The maximum measurement height of the self-made multi angle observation frame can reach 5m. When the ASD spectrometer with a field of view of 25 ° is used for observation, the ground radius can reach 1.1m, and the observation radius of 2m high corn is 0.67M, which can basically reflect the sowing structure characteristics of ground objects.\n
\nMeasurement time: 2008-05-302008-06-092008-06-142008-06-202008-06-222008-06-262008-06-302008-07-01 synchronized with various airborne (infrared wide-angle dual-mode imager widas, imaging spectrometer omis-ii) and spaceborne sensors.\n
\nData processing: BRDF data set includes original data, recorded data and processed BRDF data. The processed data is saved in Excel, and the file includes angle information and reflectivity information.
", "ds_time_res": "日", "ds_acq_place": "Heihe River Basin, intensive observation area of huazhaizi desert, hydrological test area of arid area in the middle reaches, intensive observation area of Yingke oasis", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Measuring instrument and principle: the canopy BRDF of typical features in Yingke oasis and huazhaizi desert intensive observation area was measured by ASD (analytical Sepctral devices) spectrometer. The basic principle of measurement is: r = (DN1 / dn0) × R0。 Where R0 and dn0 are the calibrated spectral reflectance of the reference reflective gray plate and the measured DN value respectively; DN1 is the DN value obtained from the measurement target
\nMeasurement method: the main plane and vertical main plane were mainly observed, and the vertical ridge and parallel ridge were also observed for row sowing corn (Yingke oasis corn field) and wheat (Yingke wheat field). Measure the directional reflectance between - 60 ° and 60 ° at 10 ° intervals. The maximum measurement height of the self-made multi angle observation frame can reach 5m. When the ASD spectrometer with a field of view of 25 ° is used for observation, the ground radius can reach 1.1m, and the observation radius of 2m high corn is 0.67M, which can basically reflect the sowing structure characteristics of ground objects
\nMeasurement time: 2008-05-302008-06-092008-06-142008-06-202008-06-222008-06-262008-06-302008-07-01 synchronized with various airborne (infrared wide-angle dual-mode imager widas, imaging spectrometer omis-ii) and spaceborne sensors.", "ds_ref_instruction": "This data is generated by \"Heihe integrated remote sensing joint test\". 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": "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, "ds_topic_tags": [ "冠层光谱", "地物光谱仪（ASD）", "植被", "成像光谱仪OMIS-II", "红外广角双模式成像仪WiDAS", "地面遥感" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "中游干旱区水文试验区", "盈科绿洲加密观测区", "花寨子荒漠加密观测区", "黑河流域" ], "ds_time_tags": [ 2008 ], "ds_contributors": [ { "true_name": "任华忠", "email": "renhuazhong@pku.edu.cn", "work_for": "北京大学遥感与地理信息系统研究所", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "任华忠", "email": "renhuazhong@pku.edu.cn", "work_for": "北京大学遥感与地理信息系统研究所", "country": "中国" } ], "ds_managers": [ { "true_name": "任华忠", "email": "renhuazhong@pku.edu.cn", "work_for": "北京大学遥感与地理信息系统研究所", "country": "中国" } ], "category": "遥感及产品" }