2008年5月30日在临泽站加密观测区开展了机载红外广角双模式成像仪WiDAS（Wide-angle Infrared Dual-mode line/area Array Scanner）航空飞行的地面同步观测。 WiDAS由4个CCD相机、1个中红外热像仪（AGEMA 550）和1个热红外热像仪（S60）组成， 能同时获取可见光/近红外（CCD）波段5个角度、中红外波段（MIR）7个角度和热红外波段（TIR ）7个角度的数据。观测内容包括地表辐射温度、土壤水分、地物光谱、BRDF、鱼眼相机测量LAI、手工测量LAI。\n
\n1．土壤水分观测；观测目标：0-5cm表层土壤。观测仪器： 环刀（体积50cm^3）， ML2X土壤水分速测仪。观测样方和观测次数：荒漠过渡带自东向西第七航线下LY07样方和第八航线下LY08样方（各9次观测）。预处理数据为土壤体积含水量。数据存储：Excel。\n
\n2．地表辐射温度观测；观测仪器：手持式红外温度计（寒旱所5#，寒旱所6#）；仪器均经过定标（请参考手持红外温度计定标数据.xls）。观测样方和观测次数： LY07和LY08（每个样方49个观测点，每个观测点3次重复）。预处理数据根据热红外定标数据（标准源为黑体），将各仪器的实测温度与相应黑体温度进行直线拟合，求得拟合方程，再利用上述拟合的方程，对观测的原始观测数据进行定标处理。数据存储：Excel。\n
\n3．BRDF；观测仪器：北师大ASD光谱仪，350-2 500 nm； 40%参考板；多角度观测架包括北京师范大学旧多角度观测架一台、北师大2008年新制多角度观测架一台、遥感所新制多角度观测架一台。观测地点：五里墩农田样方和荒漠过渡带。样本类型：玉米。存储方式： 本数据集包括原始数据和预处理后数据，原始数据由二进制文件和记录表构成，二进制文件可由ViewSpecPro软件读取；处理后的反射率和透射率是文本格式。\n
\n4．鱼眼相机测量LAI。观测仪器：佳能EOS40D相机和佳能EF15/28鱼眼镜头以及相机支架。观测地点：五里墩农田样方I区、荒漠过渡带和杨树林。观测对象：玉米；杨树；荒漠灌丛。拍摄方法：大部分照片为从上向下拍摄，较高的作物拍摄时采取从下向上拍摄，特殊情况下，比如光线太强时，采取向下倾斜45度拍摄。具体拍摄情况见当天鱼眼相机测量记录。存储方式：该数据包括拍摄的原始照片，以及用can_eye5.0软件处理以后的结果。原始照片格式为JPG，处理结果文件格式为Excel表格。\n
\n5．手工测量法测量LAI；观测样方：五里墩农田样方D和H子样方。测量方案：使用直尺和三角板。数据文档中所存放的是在实验样方中抽取的4到5株样本所有叶片的长和宽，另有样方调查文档存放每个样方的株数。用LAI-3100测量了部分样本，并与手工测量值进行比较，得到修正参数来修正手工测量值。利用直尺和三角板，抽样测量和记录叶片长和宽，样方作物总株数，样方大小，计算出作物的平均叶片面积，乘上样方内总株数，得出估算的作物总的叶片面积后，除以样方面积。存储方式：此数据为处理后数据，文件格式为Excel表格，得到的是观测样方每天的LAI测量平均值。\n
\n样方样带的分布和编号信息请参见元数据“黑河综合遥感联合试验：临泽站加密观测区样方样带布置”，样方位置见临泽站加密观测站样方样带坐标.xls。
", "ds_source": "2008年5月30日在临泽站加密观测区开展了机载红外广角双模式成像仪WiDAS（Wide-angle Infrared Dual-mode line/area Array Scanner）航空飞行的地面同步观测。 WiDAS由4个CCD相机、1个中红外热像仪（AGEMA 550）和1个热红外热像仪（S60）组成， 能同时获取可见光/近红外（CCD）波段5个角度、中红外波段（MIR）7个角度和热红外波段（TIR ）7个角度的数据。观测内容包括地表辐射温度、土壤水分、地物光谱、BRDF、鱼眼相机测量LAI、手工测量LAI。
", "ds_process_way": "1．土壤水分观测。荒漠过渡带自东向西第七航线下LY07样方和第八航线下LY08样方（各9次观测）。\n
\n2．地表辐射温度观测。 LY07和LY08（每个样方49个观测点，每个观测点3次重复）。\n
\n3．BRDF。多角度观测架包括北京师范大学旧多角度观测架一台、北师大2008年新制多角度观测架一台、遥感所新制多角度观测架一台。\n
\n4．鱼眼相机测量LAI。大部分照片为从上向下拍摄，较高的作物拍摄时采取从下向上拍摄，特殊情况下，比如光线太强时，采取向下倾斜45度拍摄。具体拍摄情况见当天鱼眼相机测量记录。\n
\n5．手工测量法测量LAI。使用直尺和三角板。数据文档中所存放的是在实验样方中抽取的4到5株样本所有叶片的长和宽，另有样方调查文档存放每个样方的株数。用LAI-3100测量了部分样本，并与手工测量值进行比较，得到修正参数来修正手工测量值。利用直尺和三角板，抽样测量和记录叶片长和宽，样方作物总株数，样方大小，计算出作物的平均叶片面积，乘上样方内总株数，得出估算的作物总的叶片面积后，除以样方面积。
", "ds_quality": "数据质量良好
\n\n3．BRDF；观测仪器：北师大ASD光谱仪，350-2 500 nm； 40%参考板；多角度观测架包括北京师范大学旧多角度观测架一台、北师大2008年新制多角度观测架一台、遥感所新制多角度观测架一台。观测地点：五里墩农田样方和荒漠过渡带。样本类型：玉米。存储方式： 本数据集包括原始数据和预处理后数据，原始数据由二进制文件和记录表构成，二进制文件可由ViewSpecPro软件读取；处理后的反射率和透射率是文本格式。\n
\n4．鱼眼相机测量LAI。观测仪器：佳能EOS40D相机和佳能EF15/28鱼眼镜头以及相机支架。观测地点：五里墩农田样方I区、荒漠过渡带和杨树林。观测对象：玉米；杨树；荒漠灌丛。拍摄方法：大部分照片为从上向下拍摄，较高的作物拍摄时采取从下向上拍摄，特殊情况下，比如光线太强时，采取向下倾斜45度拍摄。具体拍摄情况见当天鱼眼相机测量记录。存储方式：该数据包括拍摄的原始照片，以及用can_eye5.0软件处理以后的结果。原始照片格式为JPG，处理结果文件格式为Excel表格。\n
\n5．手工测量法测量LAI；观测样方：五里墩农田样方D和H子样方。测量方案：使用直尺和三角板。数据文档中所存放的是在实验样方中抽取的4到5株样本所有叶片的长和宽，另有样方调查文档存放每个样方的株数。用LAI-3100测量了部分样本，并与手工测量值进行比较，得到修正参数来修正手工测量值。利用直尺和三角板，抽样测量和记录叶片长和宽，样方作物总株数，样方大小，计算出作物的平均叶片面积，乘上样方内总株数，得出估算的作物总的叶片面积后，除以样方面积。存储方式：此数据为处理后数据，文件格式为Excel表格，得到的是观测样方每天的LAI测量平均值。\n
\n样方样带的分布和编号信息请参见元数据“黑河综合遥感联合试验：临泽站加密观测区样方样带布置”，样方位置见临泽站加密观测站样方样带坐标.xls。
", "ds_acq_start_time": "2008-06-08 00:00:00", "ds_acq_end_time": "2008-06-08 00:00:00", "ds_acq_place": "黑河流域, 中游干旱区水文试验区, 临泽站加密观测区", "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": 195557812, "ds_files_count": 2, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "时", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "afa3787a-c200-429d-b6a1-14a43b38e91c.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.db1834.2022", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2022-03-15 15:11:11", "last_updated": "2025-06-30 16:07:28", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.NIEER.2021.1801", "i18n": { "en": { "title": "Heihe integrated remote sensing joint test: Airborne widas ground synchronous observation data set in the encrypted observation area of Linze station (May 30, 2008)", "ds_format": "excel", "ds_source": "On May 30, 2008, the ground synchronous observation of airborne infrared wide-angle dual-mode line / area array scanner (widas) was carried out in the encrypted observation area of Linze station. Widas is composed of 4 CCD cameras, 1 mid infrared thermal imager (AGEMA 550) and 1 thermal infrared thermal imager (S60). It can simultaneously obtain data of 5 angles of visible / near infrared (CCD) band, 7 angles of mid infrared band (MIR) and 7 angles of thermal infrared band (TIR). The observation contents include surface radiation temperature, soil moisture, surface feature spectrum, BRDF, fish eye camera measurement Lai and manual measurement Lai
", "ds_quality": "Good data quality
", "ds_ref_way": "", "ds_abstract": "On May 30, 2008, the ground synchronous observation of airborne infrared wide-angle dual-mode line / area array scanner (widas) was carried out in the encrypted observation area of Linze station. Widas is composed of 4 CCD cameras, 1 mid infrared thermal imager (AGEMA 550) and 1 thermal infrared thermal imager (S60). It can simultaneously obtain data of 5 angles of visible / near infrared (CCD) band, 7 angles of mid infrared band (MIR) and 7 angles of thermal infrared band (TIR). The observation contents include surface radiation temperature, soil moisture, surface feature spectrum, BRDF, fish eye camera measurement Lai and manual measurement Lai.\n
\n1. Soil moisture observation; Observation target: 0-5cm topsoil. Observation instrument: ring knife (volume 50cm ^ 3), ml2x soil moisture rapid tester. Observation quadrat and observation times: ly07 quadrat under the seventh route and ly08 quadrat under the Eighth Route in the desert transition zone from east to West (9 observations each). The pretreatment data is soil volume water content. Data storage: Excel.\n
\n2. Surface radiation temperature observation; Observation instrument: hand held infrared thermometer (cold and drought Institute 5#, cold and drought Institute 6#); All instruments have been calibrated (please refer to the calibration data of handheld infrared thermometer. XLS). Observation quadrat and observation times: ly07 and ly08 (49 observation points per quadrat, 3 repetitions per observation point). Preprocessing data according to the thermal infrared calibration data (the standard source is blackbody), the measured temperature of each instrument is linearly fitted with the corresponding blackbody temperature to obtain the fitting equation, and then the above fitted equation is used to calibrate the observed original observation data. Data storage: Excel.\n
\n3．BRDF； Observation instrument: ASD spectrometer of Beijing Normal University, 350-2500 nm; 40% reference plate; The multi angle observation frame includes an old multi angle observation frame of Beijing Normal University, a new multi angle observation frame made by Beijing Normal University in 2008 and a new multi angle observation frame made by Remote Sensing Institute. Observation site: wulidun farmland quadrat and desert transition zone. Sample type: corn. Storage mode: this data set includes original data and preprocessed data. The original data is composed of binary files and record tables, and the binary files can be read by viewspecpro software; The processed reflectivity and transmittance are in text format.\n
\n4. Fish eye camera measures Lai. Observation instruments: Canon eos40d camera, Canon ef15 / 28 fisheye lens and camera support. Observation site: wulidun farmland quadrat area I, desert transition zone and poplar forest. Observation object: corn; Poplar; Desert shrub. Shooting method: most photos are taken from top to bottom. For higher crops, they are taken from bottom to top. Under special circumstances, such as when the light is too strong, they are taken at a downward tilt of 45 degrees. See the fish eye camera measurement record of the day for specific shooting conditions. Storage method: the data includes the original photos taken and can_ The results after eye5.0 software processing. The original photo format is JPG, and the processing result file format is excel.\n
\n5. Measure Lai by manual measurement method; Observation quadrat: wulidun farmland quadrat D and H sub quadrat. Measurement scheme: use straight edge and triangular plate. The data document stores the length and width of all leaves of 4 to 5 samples taken from the experimental quadrat, and the quadrat survey document stores the number of plants in each quadrat. Some samples were measured with lai-3100, and compared with the manual measurement value, the correction parameters were obtained to correct the manual measurement value. Use a ruler and a triangular plate to sample, measure and record the leaf length and width, the total number of crops in the quadrat and the quadrat size, calculate the average leaf area of the crop, multiply the total number of plants in the quadrat, obtain the estimated total leaf area of the crop, and divide it by the quadrat area. Storage method: this data is processed data, and the file format is excel table. The average value of Lai measurement of observation quadrat every day is obtained.\n
\nSee the metadata \"Heihe integrated remote sensing joint test: layout of quadrat transects in the densified observation area of Linze station\" for the distribution and number of quadrat transects, and see the quadrat transect coordinates.xls of the densified observation station of Linze station for the quadrat location
", "ds_time_res": "时", "ds_acq_place": "Heihe River Basin, hydrological experimental area of arid area in the middle reaches, intensive observation area of Linze station", "ds_space_res": "", "ds_projection": "", "ds_process_way": "1. Soil moisture observation. From east to west, ly07 quadrat under the seventh route and ly08 quadrat under the Eighth Route in the desert transition zone (9 observations each).\n
\n2. Observation of surface radiation temperature. Ly07 and ly08 (49 observation points per quadrat, 3 repetitions per observation point).\n
\n3．BRDF。 The multi angle observation frame includes an old multi angle observation frame of Beijing Normal University, a new multi angle observation frame made by Beijing Normal University in 2008 and a new multi angle observation frame made by Remote Sensing Institute.\n
\n4. Fish eye camera measures Lai. Most photos are taken from top to bottom. For higher crops, they are taken from bottom to top. Under special circumstances, such as when the light is too strong, they are taken at a downward tilt of 45 degrees. See the fish eye camera measurement record of the day for specific shooting conditions.\n
\n5. Measure Lai by manual measurement. Use a straight edge and a triangle. The data document stores the length and width of all leaves of 4 to 5 samples taken from the experimental quadrat, and the quadrat survey document stores the number of plants in each quadrat. Some samples were measured with lai-3100, and compared with the manual measurement value, the correction parameters were obtained to correct the manual measurement value. Use a ruler and a triangular plate to sample, measure and record the leaf length and width, the total number of crops in the quadrat and the quadrat size, calculate the average leaf area of the crop, multiply the total number of plants in the quadrat, obtain the estimated total leaf area of the crop, and divide it by the quadrat area.
", "ds_ref_instruction": "This data was generated by the \"Heihe Comprehensive Remote Sensing Joint Experiment\". When using the data, please clearly state the source of the data in the main text and cite the citation provided by this metadata in the reference section." } }, "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": [ "多角度观测架", "地表辐射温度", "ASD光谱仪", "多角度热红外与CCD相机", "鱼眼相机", "手持式红外温度计", "土壤水分", "BRDF", "地物光谱", "红外广角双模式成像仪WiDAS", "环刀", "地面同步观测", "LAI", "土壤", "叶面积指数", "植被", "地表辐射特性", "机载", "地面遥感", "光谱", "测量" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "临泽站加密观测区", "黑河流域", "中游干旱区水文试验区" ], "ds_time_tags": [ 2008 ], "ds_contributors": [ { "true_name": "孙青松", "email": "qso_sun@qq.com", "work_for": "北京师范大学", "country": "中国" }, { "true_name": "屈永华", "email": "qyh@bnu.edu.cn", "work_for": "北京师范大学", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "孙青松", "email": "qso_sun@qq.com", "work_for": "北京师范大学", "country": "中国" } ], "ds_managers": [ { "true_name": "孙青松", "email": "qso_sun@qq.com", "work_for": "北京师范大学", "country": "中国" } ], "category": "遥感及产品" }