2008年7月1日在盈科绿洲与花寨子荒漠加密观测区进行了星载高光谱传感器PROBA CHRIS同步测量。在盈科绿洲玉米地测量了行播玉米的BRDF光谱数据、多角度热红外辐射温度、冠层辐射温度、CE318太阳分光光度计大气参数数据；以及盈科绿洲玉米地的玉米与小麦、花寨子荒漠玉米地的玉米以及其他临时观测点的西红柿、向日葵、胡麻、脑豆等冠层光谱。\n
\n测量内容：\n
\n （1） 光合作用有效辐射比率（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
（2） 行播玉米BRDF数据。测量对象盈科绿洲玉米地行播玉米，测量仪器为中国科学院遥感应用研究所的ASD光谱仪（350-2500nm）和北京师范大学自制的光谱多角度观测架，该观测架可以最高在距离地面5m的高度，方位角0~360°，天顶角-60°~60°之间进行光谱测量。在行播玉米的BRDF测量时，选择了主平面与垂直主平面，垂直垄平面和顺垄平面进行观测。每次观测以10°为间隔。主平面上前向观测角为正，后向观测角为负。垂直观测为0°，向两侧角度值逐渐增大。与此同时，在观测架上还另外安置了一个固定自记点温计，测量多角度热辐射温度，具体可见于“黑河综合遥感联合试验：2008年7月1日CHRIS同步测量-多角度热辐射温度数据”元数据中。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。导出原始数据，反射率需进一步计算。处理后的反射率数据以Excel格式保存。
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（3）固定自记辐射点温计测量的辐射温度。测量对象为盈科绿洲玉米地行播玉米冠层。由于玉米长高，仪器探头距离冠层高度50cm。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。
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（4）CE318太阳分光光度计大气参数数据。本数据集为利用法国CIMEL公司生产的太阳分光光度计测量得到的大气参数。测量地点为度假村活动室屋顶。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。
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（5）搭载于同期BRDF光谱观测架上的中国科学院遥感应用研究所的固定自记点温计测量的多角度红外辐射温度。观测架可以最高在距离地面5m的高度，方位角0~360°，天顶角-60°~60°之间进行光谱测量。在行播玉米的BRDF测量时，选择了主平面与垂直主平面，垂直垄平面和顺垄平面进行观测。每次观测以10°为间隔。主平面上前向观测角为正，后向观测角为负。垂直观测为0°，向两侧角度值逐渐增大。固定自记点温计的采样时间间隔为0.05s。仪器比辐射率为1.0。数据以文本文件存储（.dat格式，而且有的文件可能会有内容上的重叠），每个文本文件中的前7行为说明性的头文件，包括，数据采集日期、记录的起始时间、记录时间间隔等.另外，包括Time、TObj、Tint、TBox、Tact等5列数据，对应的说明如下：Time：从开始记录起的时间，换算成实际时间的话需要该值加起始时间 TObj：目标温度 TInt：探头内部温度 TBox：腔体温度，Tint和TBox二个数据没有什么用。 TAct：根据给定的发射率换算出来的实际温度，由于仪器比辐射率为1.0，所以该值和TObj是一样的。
", "ds_source": "2008年7月1日在盈科绿洲与花寨子荒漠加密观测区进行了星载高光谱传感器PROBA CHRIS同步测量。在盈科绿洲玉米地测量了行播玉米的BRDF光谱数据、多角度热红外辐射温度、冠层辐射温度、CE318太阳分光光度计大气参数数据；以及盈科绿洲玉米地的玉米与小麦、花寨子荒漠玉米地的玉米以及其他临时观测点的西红柿、向日葵、胡麻、脑豆等冠层光谱。
", "ds_process_way": "（1） 光合作用有效辐射比率（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（2） 行播玉米BRDF数据。测量对象盈科绿洲玉米地行播玉米，测量仪器为中国科学院遥感应用研究所的ASD光谱仪（350-2500nm）和北京师范大学自制的光谱多角度观测架，该观测架可以最高在距离地面5m的高度，方位角0~360°，天顶角-60°~60°之间进行光谱测量。在行播玉米的BRDF测量时，选择了主平面与垂直主平面，垂直垄平面和顺垄平面进行观测。每次观测以10°为间隔。主平面上前向观测角为正，后向观测角为负。垂直观测为0°，向两侧角度值逐渐增大。与此同时，在观测架上还另外安置了一个固定自记点温计，测量多角度热辐射温度，具体可见于“黑河综合遥感联合试验：2008年7月1日CHRIS同步测量-多角度热辐射温度数据”元数据中。\n
\n（3）固定自记辐射点温计测量的辐射温度。测量对象为盈科绿洲玉米地行播玉米冠层。由于玉米长高，仪器探头距离冠层高度50cm。仪器设定比辐射率为0.95。\n
\n（4）CE318太阳分光光度计大气参数数据。本数据集为利用法国CIMEL公司生产的太阳分光光度计测量得到的大气参数。测量地点为度假村活动室屋顶。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（5）搭载于同期BRDF光谱观测架上的中国科学院遥感应用研究所的固定自记点温计测量的多角度红外辐射温度。观测架可以最高在距离地面5m的高度，方位角0~360°，天顶角-60°~60°之间进行光谱测量。在行播玉米的BRDF测量时，选择了主平面与垂直主平面，垂直垄平面和顺垄平面进行观测。每次观测以10°为间隔。主平面上前向观测角为正，后向观测角为负。垂直观测为0°，向两侧角度值逐渐增大。固定自记点温计的采样时间间隔为0.05s。仪器比辐射率为1.0。
\n", "ds_quality": "数据以文本文件存储（.dat格式，而且有的文件可能会有内容上的重叠），每个文本文件中的前7行为说明性的头文件，包括，数据采集日期、记录的起始时间、记录时间间隔等.另外，包括Time、TObj、Tint、TBox、Tact等5列数据，对应的说明如下：Time：从开始记录起的时间，换算成实际时间的话需要该值加起始时间 TObj：目标温度 TInt：探头内部温度 TBox：腔体温度，Tint和TBox二个数据没有什么用。 TAct：根据给定的发射率换算出来的实际温度，由于仪器比辐射率为1.0，所以该值和TObj是一样的。
\n", "ds_acq_start_time": "2008-07-01 00:00:00", "ds_acq_end_time": "2008-07-02 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": 184233135, "ds_files_count": 2, "ds_format": "dat", "ds_space_res": null, "ds_time_res": "时", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "fa5ec3d1-5a77-46df-a817-31c8b99e91af.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.db1753.2022", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2022-03-14 09:36:33", "last_updated": "2023-08-22 15:12:29", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.NIEER.2021.1723", "i18n": { "en": { "title": "Heihe comprehensive remote sensing joint experiment: proba Chris ground synchronous observation data set in Yingke oasis and huazhaizi desert intensive observation area (July 1, 2008)", "ds_format": "dat", "ds_source": "On July 1, 2008, the spaceborne hyperspectral sensor proba Chris was synchronously measured in the dense observation area of Yingke oasis and huazhaizi desert. BRDF spectral data, multi angle thermal infrared radiation temperature, canopy radiation temperature and CE318 solar spectrophotometer atmospheric parameter data of row sown maize were measured in Yingke oasis maize field; And the canopy spectra of corn and wheat in Yingke oasis corn field, corn in huazhaizi desert corn field and tomato, sunflower, flax, brain bean and other temporary observation points
", "ds_quality": "The data is stored in text files (. Dat format, and some files may overlap in content). The first 7 lines in each text file are descriptive header files, including data collection date, recording start time, recording time interval, etc. in addition, they include 5 columns of data, such as time, toBJ, tint, Tbox, tact, etc, The corresponding description is as follows: time: the time from the beginning of recording. If converted to the actual time, this value needs to be added with the starting time toBJ: target temperature tint: probe internal temperature Tbox: cavity temperature. The two data of tint and Tbox are useless. Tact: the actual temperature converted according to the given emissivity. Since the specific emissivity of the instrument is 1.0, this value is the same as toBJ.\n
", "ds_ref_way": "", "ds_abstract": "On July 1, 2008, the synchronous measurement of spaceborne hyperspectral sensor proba Chris was carried out in Yingke oasis and huazhaizi desert intensive observation area. BRDF spectral data, multi angle thermal infrared radiation temperature, canopy radiation temperature, CE318 solar spectrophotometer atmospheric parameters of row sowing maize, maize and wheat in Yingke oasis maize field, maize in huazhaizi desert maize field and canopy spectra of tomato, sunflower, flax and naodou in other temporary observation points were measured.\n(1) The data of fraction of photosynthetically active radiation (FPAR) were collected from maize and wheat in Yingke oasis. The measuring instruments are SunScan canopy analyzer and digital camera. The incident and reflected par were measured at the same time. FPAR = (to canopy par - surface transmission par - canopy reflection par + surface reflection PAR) / to canopy par; apar = FPAR × to canopy par.
\n(2) BRDF data of row maize. The object of measurement is row sowing corn in Yingke oasis. The instrument is ASD spectrometer (350-2500nm) of Institute of remote sensing application of Chinese Academy of Sciences and the multi angle observation frame of spectrum made by Beijing Normal University. The observation frame can measure the spectrum at the height of 5m from the ground, azimuth angle of 0-360 ° and zenith angle of - 60 ° to 60 °. The main plane and vertical main plane, vertical ridge plane and along ridge plane were selected for BRDF measurement. The interval of each observation is 10 degrees. On the main plane, the forward observation angle is positive and the backward observation angle is negative. The vertical observation is 0 ° and the angle increases gradually to both sides. At the same time, a fixed self recording point thermometer is installed on the observation frame to measure the multi angle thermal radiation temperature, which can be seen in the metadata of \"Heihe comprehensive remote sensing joint experiment: Chris synchronous measurement multi angle thermal radiation temperature data on July 1, 2008\".
\n(3) Radiation temperature measured by fixed self recording radiation point thermometer. The measured object is the canopy of row sowing maize in Yingke oasis. Because of the height of maize, the probe of the instrument is 50cm away from the canopy. The specific emissivity of the instrument is set at 0.95.
\n(4) The data of atmospheric parameters of CE318 solar spectrophotometer. This data set is the atmospheric parameters measured by solar spectrophotometer produced by cimel company in France. The measurement site is the roof of the activity room of the resort. CE318 solar spectrophotometer can reverse the optical thickness, Rayleigh scattering and aerosol optical thickness of non water vapor channel through the direct solar radiation measurement data. The water vapor content of atmospheric column can be obtained from the 936nm measurement data of water vapor channel, and the horizontal visibility can also be derived from CE318 data. CE318 of Beijing Normal University is used in this measurement, which can provide optical thickness of 1020nm, 936nm, 870nm, 670nm and 440nm, and can be used to retrieve water vapor content of atmospheric column.
\n(5) The multi angle infrared radiation temperature measured by the fixed self recording point thermometer of the Institute of remote sensing application, Chinese Academy of Sciences, which is mounted on the BRDF spectrum observation frame at the same period. The maximum height of the observation frame is 5m from the ground, the azimuth angle is 0 ~ 360 ° and the zenith angle is - 60 ~ 60 ° for spectrum measurement. The main plane and vertical main plane, vertical ridge plane and along ridge plane were selected for BRDF measurement. The interval of each observation is 10 degrees. On the main plane, the forward observation angle is positive and the backward observation angle is negative. The vertical observation is 0 ° and the angle increases gradually to both sides. The sampling time interval of fixed self recording point thermometer is 0.05s. The specific emissivity of the instrument is 1.0. \nThe data is stored in text file (. Dat format, and some files may overlap in content). The first seven lines in each text file are descriptive header files, including data collection date, record start time, record interval, etc To convert it into the actual time, you need this value plus the starting time toBJ: target temperature tint: probe internal temperature Tbox: cavity temperature. Tint and Tbox are useless. Tact: the actual temperature converted from the given emissivity. Since the instrument specific emissivity is 1.0, the value is the same as toBJ.
", "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) The measured objects are corn and wheat in the corn plot of Yingke oasis. The measuring instruments are SunScan canopy analyzer and digital camera. The measurement is divided into upper and lower sections, and the incident and reflected par are measured at the same time. FPAR = (reaching canopy par - surface transmission par - canopy reflection par + surface reflection PAR) / reaching canopy par; APAR=FPAR × Reach the canopy par.\n
\n（ 2) BRDF data of row sowing maize. The measuring object is corn sown in Yingke oasis. The measuring instruments are ASD spectrometer (350-2500nm) of Institute of remote sensing application, Chinese Academy of Sciences and spectral multi angle observation frame made by Beijing Normal University. The observation frame can carry out spectral measurement at a height of up to 5M from the ground, azimuth angle of 0 ~ 360 ° and zenith angle of - 60 ° ~ 60 °. In the BRDF measurement of row sowing maize, the main plane and vertical main plane, vertical ridge plane and along ridge plane were selected for observation. Each observation is made at 10 ° intervals. The forward observation angle on the main plane is positive and the backward observation angle is negative. The vertical observation is 0 °, and the angle value gradually increases to both sides. At the same time, a fixed self recording point thermometer is also installed on the observation frame to measure the multi angle thermal radiation temperature, which can be seen in the metadata of \"Heihe comprehensive remote sensing joint test: Chris synchronous measurement - multi angle thermal radiation temperature data on July 1, 2008\".\n
\n（ 3) Radiation temperature measured by fixed self recording radiation point thermometer. The measured object is the row sowing corn canopy in Yingke oasis. Due to the height of corn, the instrument probe is 50cm away from the canopy height. The specific emissivity of the instrument is set to 0.95.\n
\n（ 4) CE318 solar spectrophotometer atmospheric parameter data. This data set is the atmospheric parameters measured by the solar spectrophotometer produced by cimel, France. The survey site is the roof of the resort activity room. CE318 solar spectrophotometer can inverse the optical thickness, Rayleigh scattering and aerosol optical thickness of non water vapor channel through direct solar radiation measurement data. The water vapor content of atmospheric column can be obtained from 936nm measurement data of water vapor channel, and the horizontal visibility can also be derived from CE318 data. CE318 of Beijing Normal University is used in this measurement, which can provide the optical thickness of five bands: 1020nm, 936nm, 870nm, 670nm and 440nm, and the water vapor content of the atmospheric column can be retrieved from the 936nm measurement data.\n
\n（ 5) The multi angle infrared radiation temperature measured by the fixed self recording point thermometer of the Institute of remote sensing application of the Chinese Academy of Sciences on the BRDF spectrum observation frame in the same period. The observation frame can measure the spectrum at a height of up to 5M from the ground, with an azimuth of 0 ~ 360 ° and a zenith angle of - 60 ° ~ 60 °. In the BRDF measurement of row sowing maize, the main plane and vertical main plane, vertical ridge plane and along ridge plane were selected for observation. Each observation is made at 10 ° intervals. The forward observation angle on the main plane is positive and the backward observation angle is negative. The vertical observation is 0 °, and the angle value gradually increases to both sides. The sampling time interval of the fixed self recording point thermometer is 0.05s. The specific emissivity of the instrument is 1.0.\n
", "ds_ref_instruction": "\r\nThis 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": "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": [ "航天遥感", "光合有效辐射", "大气辐射", "大气温度", "地面空气温度", "地物光谱仪（ASD）", "植被", "气溶胶", "散射", "机载地面遥感", "气溶胶光学深度", "可见光遥感", "光谱", "测量" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "黑河流域", "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" ], "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" }, { "true_name": "周梦维", "email": "mengweizhou@hotmail.com", "work_for": "中国科学院遥感应用研究所", "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" }