2008年5月28日至2008年7月11日，在临泽站加密观测区开展植物叶片反射率和透射率观测。\n观测仪器：北师大ASD光谱仪，350～2 500 nm；北师大积分球。参考板信息：6月15日前使用40%参考板，之后改换成20%参考板。\n
\n样品采集地点：临泽站内样方、五里墩农田样方、荒漠。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。\n
\n样本类型：玉米、荒漠绿色/干枯灌丛。\n
\n测量原理：已知参考板的定标系数，光源和叶片相对位置的变化可以得到透射率或者反射率；反射率测量：使光源正对着样品口，叶片上表面面向积分球内壁，下表面对着黑体盖；透射率测量：使光源处于样品口同一侧，叶片上表面对着光源，下表面面向积分球内壁。通过测量目标物和参考板的反射DN值，根据二者的DN值之比等于二者的反射率或投射率之比就可以计算出目标物的反射率或透射率；室内利用积分球可得到植物叶片的反射率和透射率。\n
\n存储方式：本数据集包括原始数据和处理后数据，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
\n样品采集与观测时间：五里墩农田样方（2008-06-24，2008-06-29，2008-07-11）、临泽站内样方（2008-05-28，2008-05-30，2008-06-19，2008-06-30，2008-07-09）。
", "ds_source": "2008年5月28日至2008年7月11日，在临泽站加密观测区开展植物叶片反射率和透射率观测。
", "ds_process_way": "观测仪器：北师大ASD光谱仪，350～2 500 nm；北师大积分球。参考板信息：6月15日前使用40%参考板，之后改换成20%参考板。\n
\n样品采集地点：临泽站内样方、五里墩农田样方、荒漠。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。\n
\n样本类型：玉米、荒漠绿色/干枯灌丛。\n
\n测量原理：已知参考板的定标系数，光源和叶片相对位置的变化可以得到透射率或者反射率；反射率测量：使光源正对着样品口，叶片上表面面向积分球内壁，下表面对着黑体盖；透射率测量：使光源处于样品口同一侧，叶片上表面对着光源，下表面面向积分球内壁。通过测量目标物和参考板的反射DN值，根据二者的DN值之比等于二者的反射率或投射率之比就可以计算出目标物的反射率或透射率；室内利用积分球可得到植物叶片的反射率和透射率。\n
\n样品采集与观测时间：五里墩农田样方（2008-06-24，2008-06-29，2008-07-11）、临泽站内样方（2008-05-28，2008-05-30，2008-06-19，2008-06-30，2008-07-09）。
", "ds_quality": "数据质量良好
", "ds_acq_start_time": "2008-06-08 00:00:00", "ds_acq_end_time": "2008-07-22 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": 67753874, "ds_files_count": 2, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "日", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "e44cffeb-9c7f-40b4-84b2-711c28c7e828.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.db1867.2022", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2022-03-15 15:32:36", "last_updated": "2025-06-30 16:06:28", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.NIEER.2021.1720", "i18n": { "en": { "title": "Heihe comprehensive remote sensing joint experiment: observation data set of spectral integral sphere of plant leaf components in the encrypted observation area of Linze station (may July 2008)", "ds_format": "excel", "ds_source": "From May 28, 2008 to July 11, 2008, the reflectance and transmittance of plant leaves were observed in the intensive observation area of Linze station
", "ds_quality": "Good data quality
", "ds_ref_way": "", "ds_abstract": "From May 28, 2008 to July 11, 2008, the reflectance and transmittance of plant leaves were observed in the intensive observation area of Linze station.\nObservation instrument: ASD spectrometer of Beijing Normal University, 350 ~ 2500 nm; Beijing Normal University integral ball. Reference plate information: use 40% reference plate before June 15, and then change to 20% reference plate.\n
\nSample collection location: Linze station quadrat, wulidun farmland quadrat and desert. See 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.\n
\nSample type: corn, desert green / dry shrub.\n
\nMeasurement principle: the transmittance or reflectance can be obtained by knowing the calibration coefficient of the reference plate and the change of the relative position of the light source and the blade; Reflectivity measurement: make the light source face the sample port, the upper surface of the blade face the inner wall of the integrating sphere, and the lower surface face the blackbody cover; Transmittance measurement: make the light source on the same side of the sample port, the upper surface of the blade faces the light source, and the lower surface faces the inner wall of the integrating sphere. By measuring the reflection DN value of the target and the reference plate, the reflectivity or transmittance of the target can be calculated according to the ratio of the DN value to the reflectivity or projectivity of the target; The reflectance and transmittance of plant leaves can be obtained by integrating sphere indoors.\n
\nStorage mode: this data set includes original data and processed 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
\nSample collection and observation time: wulidun farmland quadrat (2008-06-242008-06-29, 2008-07-11), Linze station quadrat (2008-05-28, 2008-05-302008-06-192008-06-302008-07-09)
", "ds_time_res": "日", "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": "Observation instrument: ASD spectrometer of Beijing Normal University, 350 ~ 2500 nm; Beijing Normal University integral ball. Reference plate information: use 40% reference plate before June 15, and then change to 20% reference plate.\n
\nSample collection location: Linze station quadrat, wulidun farmland quadrat and desert. See 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.\n
\nSample type: corn, desert green / dry shrub.\n
\nMeasurement principle: the transmittance or reflectance can be obtained by knowing the calibration coefficient of the reference plate and the change of the relative position of the light source and the blade; Reflectivity measurement: make the light source face the sample port, the upper surface of the blade face the inner wall of the integrating sphere, and the lower surface face the blackbody cover; Transmittance measurement: make the light source on the same side of the sample port, the upper surface of the blade faces the light source, and the lower surface faces the inner wall of the integrating sphere. By measuring the reflection DN value of the target and the reference plate, the reflectivity or transmittance of the target can be calculated according to the ratio of the DN value to the reflectivity or projectivity of the target; The reflectance and transmittance of plant leaves can be obtained by integrating sphere indoors.\n
\nSample collection and observation time: wulidun farmland quadrat (2008-06-242008-06-29, 2008-07-11), Linze station quadrat (2008-05-28, 2008-05-302008-06-192008-06-302008-07-09)
", "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": "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": [ "ASD光谱仪", "透射率", "积分球", "反射率", "组分光谱", "植被", "机载", "地面遥感" ], "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": "汪洋", "email": "wangyang@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "" } ], "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" }