2008年6月29日在盈科绿洲与花寨子荒漠加密观测区进行了红外广角双模式成像仪WiDAS（Wide-angle Infrared Dual-mode line/area Array Scanner）飞行的地面同步观测，作为补充同步飞行观测。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。\n
\n地面数据包括ASD光谱仪数据、LAI、光合速率、FPAR、反照率、辐射温度、比辐射率、覆盖度和CE318太阳分光光度计大气参数数据。 \n
\n测量内容：\n
\n（1）CE318太阳分光光度计大气参数。测量地点为花寨子荒漠样地2。CE318太阳分光光度计通过直接太阳辐射测量数据，可以反演出非水汽通道的光学厚度、瑞利散射、气溶胶光学厚度，水汽通道936nm测量数据可以获得大气气柱的水汽含量，水平能见度也可从CE318数据导出。本次测量采用了北京师范大学的CE318，其可提供1020nm、936nm、870nm、670nm和440nm共5个波段的光学厚度，可以利用936nm测量数据反演大气柱水汽含量。 本数据包括原始数据和处理后的大气数据。原始数据以CE318特有文件格式.k7存储，可用ASTPWin软件打开，并附带说明文件ReadMe.txt ；处理后文件包括利用原始数据反演获得光学厚度、瑞利散射、气溶胶光学厚度、水平能见度和近地表大气温度，以及参与计算的太阳方位角、天顶角、日地距离修正因子和大气柱质量数。 数据结果以Excel格式保存。\n
\n（2）红外比辐射率数据。本数据为利用北京师范大学的便携式红外波谱仪102F测量的盈科绿洲玉米地内的玉米和小麦的光谱比辐射率数据。 102F可提供地物在2.0~25.0um光谱比辐射率，其中8~14um数值较为稳定。102F获得地物比辐射率时需要依次测量：暖黑体、冷黑体、目标物和已知比辐射率镀金板。两个黑体测量数据用于对仪器进行动态定标，镀金板测量用于消除大气下行辐射对目标辐射的影响。四次测量的原始文件类型分别为.WBX，.CBX，.SAX和.CBX，均可利用记事本等常见软件打开。.RAX和.EMX分别为地物的光谱辐亮度和102F本身提供的算法得到的比辐射率。 考虑到目标实际物理难以获得，从而使102F本身算法得到的比辐射率（.EMX）易出现异常值。因此，本数据还提供了利用迭代光谱的TES（ISSTES）算法所得到的比辐射率数值。数据结果以Excel格式保存。\n
\n（3）LAI等结构参数数据 测量样地为盈科绿洲玉米地。测量方法为：利用皮尺、卷尺、直尺测量在盈科绿洲玉米地测量玉米和小麦每株各叶片的最大长度和最大宽度。利用室内扫描真实叶面积与最大长度和最小宽度的转换系数，获得叶面积指数。这天数据没有利用激光叶面积仪测量。 本数据以Excel保存在07月02日数据中。 \n
\n（4）光合有效辐射比率（FPAR：Fraction of Photosynthetically Active Radiation）数据，测量对象为盈科绿洲玉米地样地内的玉米与小麦。测量仪器为SUNSCAN冠层分析仪、数码相机。分上，下三段测量，并同时测量入射和反射PAR。 FPAR=（到达冠层PAR－地表透射PAR－冠层反射PAR+地表反射PAR）/到达冠层PAR APAR=FPAR×到达冠层PAR 本数据以Word格式的表格保存。\n
\n（5）固定自记点温计测量的辐射温度。 测量对象为盈科绿洲玉米样地、花寨子荒漠玉米地和花寨子荒漠样地2。盈科绿洲玉米地有北师大和遥感所仪器各一台，花寨子荒漠玉米地有一台北师大仪器，连续测量了玉米冠层的辐射温度。花寨子荒漠样地2有2台仪器，测量对象为植被（红砂）冠层和荒漠裸土。仪器的视场角约为10°，垂直向下观测，采样间隔为1s。架设高度见数据文档。仪器设定比辐射率为0.95。本数据包括原始数据与经过黑体定标、比辐射率纠正后的处理数据。均以Excel格式保存。\n
\n（6）手持辐射计测量的组分温度。 测量对象为盈科绿洲玉米地、盈科小麦地和花寨子荒漠玉米地。在盈科绿洲玉米地观测有2台仪器，分别是北京师范大学的手持式辐射仪和热像仪。\n
\n当观测玉米时，组分温度指： ①玉米垂直冠层温度：垂直观测光照玉米叶片辐射温度；②玉米裸土温度：玉米垄与垄之间光照裸土温度；③ 塑料薄膜温度：玉米垄中塑料薄膜。 \n
\n当观测小麦时，组分温度指：① 小麦垂直冠层温度：垂直观测小麦冠层温度；②小麦半高温度：小麦植株1/2处高度；③小麦底部温度：小麦植株1/3处高度；④小麦裸土温度：小麦根部所在裸土垂直观测温度（非光照） 数据包括原始数据与记录数据、经过黑体定标后的温度数据。原始数据为Word的doc格式。处理后数据以Excel格式保存。 \n
\n（7）反照率数据。 测量对象为盈科绿洲玉米地内的行播玉米。测量仪器包含短波表的上表电压值，下表电压值，后经过表的敏感系数转换成反照率数据。下表视场半径R与探头高度H的关系为：R =10H。本数据以Excel存储。 \n
\n（8）手持辐射计测量的辐射温度数据。 测量对象为盈科绿洲玉米地、花寨子荒漠玉米地、花寨子荒漠样地2的地表温度数据。玉米地的测量仪器为北师大的手持辐射计，采样方式为冠层垂直观测和条带观测。花寨子荒漠样地2采样方式为冠层东北-西南对角线观测。数据包括原始数据与记录数据、经过黑体定标后的温度数据。 本数据的原始数据为Word的doc格式。处理后数据以Excel格式保存。\n
\n（9）ASD光谱仪数据 利用ASD（Analytical Sepctral Devices）光谱仪测量盈科绿洲玉米地光谱数据。其中，盈科绿洲玉米地测量仪器为北京大学的光谱仪（350-2500nm），采样方式为冠层垂直观测和条带观测。导出原始数据，反射率需进一步计算。数据包括原始数据与记录数据、处理后的反射率数据。 本数据的原始数据为ASD标准格式，可利用其自带软件ViewSpec打开。处理后的反射率数据以Excel格式保存。
", "ds_source": "2008年6月29日在盈科绿洲与花寨子荒漠加密观测区进行了红外广角双模式成像仪WiDAS（Wide-angle Infrared Dual-mode line/area Array Scanner）飞行的地面同步观测，作为补充同步飞行观测。
", "ds_process_way": "（1）CE318太阳分光光度计大气参数。测量地点为花寨子荒漠样地2。CE318太阳分光光度计通过直接太阳辐射测量数据，可以反演出非水汽通道的光学厚度、瑞利散射、气溶胶光学厚度，水汽通道936nm测量数据可以获得大气气柱的水汽含量，水平能见度也可从CE318数据导出。本次测量采用了北京师范大学的CE318，其可提供1020nm、936nm、870nm、670nm和440nm共5个波段的光学厚度，可以利用936nm测量数据反演大气柱水汽含量。
\n\n（2）红外比辐射率数据。本数据为利用北京师范大学的便携式红外波谱仪102F测量的盈科绿洲玉米地内的玉米和小麦的光谱比辐射率数据。 102F可提供地物在2.0~25.0um光谱比辐射率，其中8~14um数值较为稳定。102F获得地物比辐射率时需要依次测量：暖黑体、冷黑体、目标物和已知比辐射率镀金板。两个黑体测量数据用于对仪器进行动态定标，镀金板测量用于消除大气下行辐射对目标辐射的影响。四次测量的原始文件类型分别为.WBX，.CBX，.SAX和.CBX，均可利用记事本等常见软件打开。.RAX和.EMX分别为地物的光谱辐亮度和102F本身提供的算法得到的比辐射率。 考虑到目标实际物理难以获得，从而使102F本身算法得到的比辐射率（*.EMX）易出现异常值。因此，本数据还提供了利用迭代光谱的TES（ISSTES）算法所得到的比辐射率数值。
\n\n（3）LAI等结构参数数据 测量样地为盈科绿洲玉米地。测量方法为：利用皮尺、卷尺、直尺测量在盈科绿洲玉米地测量玉米和小麦每株各叶片的最大长度和最大宽度。利用室内扫描真实叶面积与最大长度和最小宽度的转换系数，获得叶面积指数。这天数据没有利用激光叶面积仪测量。
\n\n（4）光合有效辐射比率（FPAR：Fraction of Photosynthetically Active Radiation）数据，测量对象为盈科绿洲玉米地样地内的玉米与小麦。测量仪器为SUNSCAN冠层分析仪、数码相机。分上，下三段测量，并同时测量入射和反射PAR。 FPAR=（到达冠层PAR－地表透射PAR－冠层反射PAR+地表反射PAR）/到达冠层PAR APAR=FPAR×到达冠层PAR。
\n\n（5）固定自记点温计测量的辐射温度。 测量对象为盈科绿洲玉米样地、花寨子荒漠玉米地和花寨子荒漠样地2。盈科绿洲玉米地有北师大和遥感所仪器各一台，花寨子荒漠玉米地有一台北师大仪器，连续测量了玉米冠层的辐射温度。花寨子荒漠样地2有2台仪器，测量对象为植被（红砂）冠层和荒漠裸土。仪器的视场角约为10°，垂直向下观测，采样间隔为1s。架设高度见数据文档。仪器设定比辐射率为0.95。
\n\n（6）手持辐射计测量的组分温度。 测量对象为盈科绿洲玉米地、盈科小麦地和花寨子荒漠玉米地。在盈科绿洲玉米地观测有2台仪器，分别是北京师范大学的手持式辐射仪和热像仪。
\n\n当观测玉米时，组分温度指： ①玉米垂直冠层温度：垂直观测光照玉米叶片辐射温度；②玉米裸土温度：玉米垄与垄之间光照裸土温度；③ 塑料薄膜温度：玉米垄中塑料薄膜。
\n\n当观测小麦时，组分温度指：① 小麦垂直冠层温度：垂直观测小麦冠层温度；②小麦半高温度：小麦植株1/2处高度；③小麦底部温度：小麦植株1/3处高度；④小麦裸土温度：小麦根部所在裸土垂直观测温度（非光照）。
\n\n（7）反照率数据。 测量对象为盈科绿洲玉米地内的行播玉米。测量仪器包含短波表的上表电压值，下表电压值，后经过表的敏感系数转换成反照率数据。下表视场半径R与探头高度H的关系为：R =10H。
\n\n（8）手持辐射计测量的辐射温度数据。 测量对象为盈科绿洲玉米地、花寨子荒漠玉米地、花寨子荒漠样地2的地表温度数据。玉米地的测量仪器为北师大的手持辐射计，采样方式为冠层垂直观测和条带观测。花寨子荒漠样地2采样方式为冠层东北-西南对角线观测。数据包括原始数据与记录数据、经过黑体定标后的温度数据。\n
\n（9）ASD光谱仪数据 利用ASD（Analytical Sepctral Devices）光谱仪测量盈科绿洲玉米地光谱数据。其中，盈科绿洲玉米地测量仪器为北京大学的光谱仪（350-2500nm），采样方式为冠层垂直观测和条带观测。导出原始数据，反射率需进一步计算。
", "ds_quality": "数据质量良好
", "ds_acq_start_time": "2008-06-29 00:00:00", "ds_acq_end_time": "2008-06-30 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": 243315086, "ds_files_count": 2, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "时", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "1647d3c1-53ba-4105-98a4-e30dc0a31fda.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.db1771.2022", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2022-06-17 16:48:43", "last_updated": "2023-08-22 15:40:23", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.NIEER.2021.1735", "i18n": { "en": { "title": "Heihe River Integrated Remote Sensing joint experiment: Airborne widas ground synchronous observation data set in Yingke oasis and huazhaizi desert intensive observation area (June 29, 2008)", "ds_format": "Excel", "ds_source": "On June 29, 2008, the ground synchronous observation of widas (wide angle infrared dual mode line / area array scanner) flight was carried out in Yingke oasis and huazhaizi desert intensive observation area as a supplementary synchronous flight observation.", "ds_quality": "
Good data quality
", "ds_ref_way": "", "ds_abstract": "On June 29, 2008, the ground synchronous observation of wide angle infrared dual mode line / area array scanner (widas) was carried out in Yingke oasis and huazhaizi desert intensive observation area as a supplementary synchronous observation. Widas is composed of four CCD cameras, a mid infrared thermal imager (AGEMA 550) and a thermal infrared thermal imager (S60). It can simultaneously obtain data of five angles in the visible / near infrared (CCD) band, seven angles in the mid infrared (MIR) band and seven angles in the thermal infrared (TIR) band.\n
\nGround data include ASD spectrometer data, Lai, photosynthetic rate, FPAR, albedo, radiation temperature, specific emissivity, coverage and CE318 solar spectrophotometer atmospheric parameters data.
\nMeasurement content:\n
\n(1) CE318 solar spectrophotometer atmospheric parameters. Measurement location for the Huazhaizi desert sample site 2. CE318 solar spectrophotometer through direct solar radiation measurement data, can be inverse performance of non-water vapor channel optical thickness, Rayleigh scattering, aerosol optical thickness, water vapor channel 936nm measurement data can be obtained from the atmospheric air column of the water vapor content, the horizontal visibility can also be derived from the CE318 data. The CE318 from Beijing Normal University was used in this measurement, which can provide the optical thickness in five bands, 1020nm, 936nm, 870nm, 670nm and 440nm, and can be used to invert the water vapor content of the atmospheric column using the 936nm measurement data. This data includes raw data and processed atmospheric data. The raw data are stored in the CE318 specific file format .k7, which can be opened by ASTPWin software and accompanied by the description file ReadMe.txt; the processed file includes the optical thickness, Rayleigh scattering, aerosol optical thickness, horizontal visibility and near-surface atmospheric temperature obtained by using the inversion of the raw data, as well as the solar azimuth angle, zenith angle, sun-earth distance correction factor and the mass number of the atmospheric column. atmospheric column mass number. The data results are saved in Excel format.\n
\n(2) Infrared specific radiance data. This data is the spectral specific radiance data of maize and wheat in the corn field of Yingke Oasis measured by the portable infrared spectrometer 102F of Beijing Normal University. The 102F provides spectral specific emissivity for features in the range of 2.0 to 25.0 um, with more stable values in the range of 8 to 14 um. To obtain the specific emissivity of a feature with the 102F, it is necessary to measure the following in sequence: a warm blackbody, a cold blackbody, a target, and a gold-plated plate with a known specific emissivity. The two blackbody measurements are used to dynamically calibrate the instrument, and the gold-plated plate measurement is used to eliminate the effect of downward atmospheric radiation on the target radiation. The raw file types for the four measurements are .WBX, .CBX, .SAX and .CBX, all of which can be opened using common software such as Notepad. The .RAX and .EMX are the spectral irradiance of the feature and the specific emissivity obtained by the algorithm provided by 102F itself, respectively. Considering that the actual physics of the target is difficult to obtain, thus making the specific emissivity (.EMX) obtained by 102F's own algorithm prone to outliers. Therefore, the specific emissivity values obtained by the TES (ISSTES) algorithm using iterative spectroscopy are also provided in this data. The data results are saved in Excel format.\n
\n(3) Data on structural parameters such as LAI The measurement sample plot was the Yingke Oasis cornfield. Measurements were made by using a tape measure, tape measure, and straightedge to measure the maximum length and maximum width of each leaf blade of each plant of maize and wheat in the Yingke Oasis maize field. Leaf area indices were obtained using conversion factors of true leaf area to maximum length and minimum width using indoor scanning. This day's data was not measured using a laser leaf area meter. This data was saved in Excel for the July 02 data. \n
\n(4) Photosynthetically Active Radiation Ratio (FPAR: Fraction of Photosynthetically Active Radiation) data were measured for maize and wheat in the Yingke Oasis corn field sample plot. The measuring instruments were SUNSCAN canopy analyzer and digital camera. Measurements were made in the upper and lower sections, and both incident and reflected PAR were measured. FPAR=(PAR to the canopy - PAR transmitted to the surface - PAR reflected from the canopy + PAR reflected from the surface)/PAR to the canopy APAR=FPAR×PAR to the canopy This data is saved in a table in Word format.\n
(5) Radiant temperatures measured by fixed self-recording point thermometers. Measurements were made at the Yingke Oasis corn plot, the Huazhazi Desert corn plot, and the Huazhazi Desert plot 2. The Yingke Oasis corn plot had one instrument each from the North Normal University (NNU) and the Institute of Remote Sensing (IRS), and the Huazhazi Desert corn plot had one instrument from NNU, which measured radiation temperatures of the maize canopy in a continuous manner. The Huazhazi Desert Sample Plot 2 had two instruments, and the measurements were made on the vegetation (red sand) canopy and desert bare soil. The instruments had a field of view of about 10° and were observed vertically downward with a sampling interval of 1 s. The height of the setup is shown in the data file. The specific emissivity of the instrument was set to 0.95, and this data consists of raw data and processed data corrected for blackbody calibration and specific emissivity. They are saved in Excel format.\n
(6) Component temperatures measured by handheld radiometer. Measurements were made in the PCG Oasis cornfield, PCG wheatfield, and Huazhazi desert cornfield. There were 2 instruments observed in the Yingke Oasis cornfield, a handheld radiometer and a thermal imaging camera from Beijing Normal University.\n\nWhen observing maize, component temperatures refer to: ① maize vertical canopy temperature: vertically observed radiant temperature of lighted maize leaves; ② maize bare soil temperature: temperature of lighted bare soil between maize ridges and ridges; ③ plastic film temperature: plastic film in maize ridges. \n
\nwhen observing wheat, the component temperatures refer to: ① Wheat vertical canopy temperature: vertical observation of wheat canopy temperature; ② Wheat half-height temperature: 1/2 height of wheat plants; ③ Wheat bottom temperature: 1/3 height of wheat plants; ④ Wheat bare soil temperature: bare soil where the roots of wheat are vertically observed temperature (non-illuminated) The data include the original data and recorded data, after the blackbody calibration temperature data. The data include raw data and recorded data, temperature data after blackbody calibration. The raw data are in Word doc format. The processed data is saved in Excel format. \n
\n(7) Albedo data. Measurements were made on row sown corn in the corn field of PCG Oasis. Measuring instrument contains a short-wave table of the upper table voltage value, the lower table voltage value, after the table's sensitivity coefficient is converted into albedo data. The relationship between the radius of the field of view R and the height of the probe H in the table below is: R = 10H. This data is stored in Excel. \n</p\n
(8) Radiation temperature data measured by a handheld radiometer. Measurements were made on the surface temperature data of Yingke Oasis cornfield, Huazhazhi desert cornfield, and Huazhazhi desert sample plot 2. The measuring instrument for the corn field was a hand-held radiometer from NNU, and the sampling method was canopy vertical observation and strip observation. The sampling method in Huazhazi Desert Sample Plot 2 was northeast-southwest diagonal observation of the canopy. The data include raw and recorded data, and temperature data after blackbody calibration. The raw data of this data are in Word's doc format. The processed data are saved in Excel format.\n
\n
(9) ASD spectrometer data The ASD (Analytical Sepctral Devices) spectrometer was used to measure the spectral data of Yingke Oasis cornfield. Among them, the measuring instrument of PCK Oasis cornfield was the spectrometer of Peking University (350-2500nm), and the sampling methods were canopy vertical observation and strip observation. Raw data were derived and reflectance needed to be further calculated. The data include raw data with recorded data and processed reflectance data. The raw data of this data are in ASD standard format, which can be opened with its own software ViewSpec. The processed reflectance data is saved in Excel format.
\n", "ds_time_res": "时", "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": "(1) CE318 solar spectrophotometer atmospheric parameters. Measurement location for the Huazhaizi desert sample site 2. CE318 solar spectrophotometer through direct solar radiation measurement data, can be inverse performance of non-water vapor channel optical thickness, Rayleigh scattering, aerosol optical thickness, water vapor channel 936nm measurement data can be obtained from the atmospheric air column of the water vapor content, the horizontal visibility can also be derived from the CE318 data. The CE318 from Beijing Normal University was used in this measurement, which can provide the optical thickness in five bands, 1020nm, 936nm, 870nm, 670nm and 440nm, and can be used to invert the water vapor content of the atmospheric column using the 936nm measurement data. This data includes raw data and processed atmospheric data. The raw data are stored in the CE318 specific file format .k7, which can be opened by ASTPWin software and accompanied by the description file ReadMe.txt; the processed file includes the optical thickness, Rayleigh scattering, aerosol optical thickness, horizontal visibility and near-surface atmospheric temperature obtained by using the inversion of the raw data, as well as the solar azimuth angle, zenith angle, sun-earth distance correction factor and the mass number of the atmospheric column. atmospheric column mass number. The data results are saved in Excel format.\n
\n(2) Infrared specific radiance data. This data is the spectral specific radiance data of maize and wheat in the corn field of Yingke Oasis measured by the portable infrared spectrometer 102F of Beijing Normal University. The 102F provides spectral specific emissivity for features in the range of 2.0 to 25.0 um, with more stable values in the range of 8 to 14 um. To obtain the specific emissivity of a feature with the 102F, it is necessary to measure the following in sequence: a warm blackbody, a cold blackbody, a target, and a gold-plated plate with a known specific emissivity. The two blackbody measurements are used to dynamically calibrate the instrument, and the gold-plated plate measurement is used to eliminate the effect of downward atmospheric radiation on the target radiation. The raw file types for the four measurements are .WBX, .CBX, .SAX and .CBX, all of which can be opened using common software such as Notepad. The .RAX and .EMX are the spectral irradiance of the feature and the specific emissivity obtained by the algorithm provided by 102F itself, respectively. Considering that the actual physics of the target is difficult to obtain, thus making the specific emissivity (.EMX) obtained by 102F's own algorithm prone to outliers. Therefore, the specific emissivity values obtained by the TES (ISSTES) algorithm using iterative spectroscopy are also provided in this data. The data results are saved in Excel format.\n
\n(3) Data on structural parameters such as LAI The measurement sample plot was the Yingke Oasis cornfield. Measurements were made by using a tape measure, tape measure, and straightedge to measure the maximum length and maximum width of each leaf blade of each plant of maize and wheat in the Yingke Oasis maize field. Leaf area indices were obtained using conversion factors of true leaf area to maximum length and minimum width using indoor scanning. This day's data was not measured using a laser leaf area meter. This data was saved in Excel for the July 02 data. \n
\n(4) Photosynthetically Active Radiation Ratio (FPAR: Fraction of Photosynthetically Active Radiation) data were measured for maize and wheat in the Yingke Oasis corn field sample plot. The measuring instruments were SUNSCAN canopy analyzer and digital camera. Measurements were made in the upper and lower sections, and both incident and reflected PAR were measured. FPAR=(PAR to the canopy - PAR transmitted to the surface - PAR reflected from the canopy + PAR reflected from the surface)/PAR to the canopy APAR=FPAR×PAR to the canopy This data is saved in a table in Word format.\n
(5) Radiant temperatures measured by fixed self-recording point thermometers. Measurements were made at the Yingke Oasis corn plot, the Huazhazi Desert corn plot, and the Huazhazi Desert plot 2. The Yingke Oasis corn plot had one instrument each from the North Normal University (NNU) and the Institute of Remote Sensing (IRS), and the Huazhazi Desert corn plot had one instrument from NNU, which measured radiation temperatures of the maize canopy in a continuous manner. The Huazhazi Desert Sample Plot 2 had two instruments, and the measurements were made on the vegetation (red sand) canopy and desert bare soil. The instruments had a field of view of about 10° and were observed vertically downward with a sampling interval of 1 s. The height of the setup is shown in the data file. The specific emissivity of the instrument was set to 0.95, and this data consists of raw data and processed data corrected for blackbody calibration and specific emissivity. They are saved in Excel format.\n (6) Component temperatures measured by handheld radiometer. Measurements were made in the PCG Oasis cornfield, PCG wheatfield, and Huazhazi desert cornfield. There were 2 instruments observed in the Yingke Oasis cornfield, a handheld radiometer and a thermal imaging camera from Beijing Normal University.\n
\nWhen observing maize, component temperatures refer to: ① maize vertical canopy temperature: vertically observed radiant temperature of lighted maize leaves; ② maize bare soil temperature: temperature of lighted bare soil between maize ridges and ridges; ③ plastic film temperature: plastic film in maize ridges. \n
\nwhen observing wheat, the component temperatures refer to: ① Wheat vertical canopy temperature: vertical observation of wheat canopy temperature; ② Wheat half-height temperature: 1/2 height of wheat plants; ③ Wheat bottom temperature: 1/3 height of wheat plants; ④ Wheat bare soil temperature: bare soil where the roots of wheat are vertically observed temperature (non-illuminated) The data include the original data and recorded data, after the blackbody calibration temperature data. The data include raw data and recorded data, temperature data after blackbody calibration. The raw data are in Word doc format. The processed data is saved in Excel format. \n\n
(7) Albedo data. Measurements were made on row sown corn in the corn field of PCG Oasis. Measuring instrument contains a short-wave table of the upper table voltage value, the lower table voltage value, after the table's sensitivity coefficient is converted into albedo data. The relationship between the radius of the field of view R and the height of the probe H in the table below is: R = 10H. This data is stored in Excel. \n</p\n
(8) Radiation temperature data measured by a handheld radiometer. Measurements were made on the surface temperature data of Yingke Oasis cornfield, Huazhazhi desert cornfield, and Huazhazhi desert sample plot 2. The measuring instrument for the corn field was a hand-held radiometer from NNU, and the sampling method was canopy vertical observation and strip observation. The sampling method in Huazhazi Desert Sample Plot 2 was northeast-southwest diagonal observation of the canopy. The data include raw and recorded data, and temperature data after blackbody calibration. The raw data of this data are in Word's doc format. The processed data are saved in Excel format.\n
\n
(9) ASD spectrometer data The ASD (Analytical Sepctral Devices) spectrometer was used to measure the spectral data of Yingke Oasis cornfield. Among them, the measuring instrument of PCK Oasis cornfield was the spectrometer of Peking University (350-2500nm), and the sampling methods were canopy vertical observation and strip observation. Raw data were derived and reflectance needed to be further calculated. The data include raw data with recorded data and processed reflectance data. The raw data of this data are in ASD standard format, which can be opened with its own software ViewSpec. The processed reflectance data is saved in Excel format.
\n", "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": "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": [ "光合有效辐射", "冠层光谱", "植被", "气溶胶", "冠层温度", "气溶胶后向散射", "红外广角双模式成像仪WiDAS", "太阳分光光度计", "地面验证信息", "气溶胶光学深度", "机载地面遥感" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "黑河流域", "花寨子荒漠加密观测区", "盈科绿洲加密观测区", "中游干旱区水文试验区" ], "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" }