2008年3月19日11:20至12:30BJT进行机载LK波段机载微波辐射计航空飞行试验，微波辐射计的观测角度为垂直地表。地表参数包括地表辐射温度、地表物理温度、土壤剖面0-1cm、1-3cm、3-5cm的重量含水量（烘干称重法），表层土壤冻融状况（以冻融深度表示）。 主要目的是观测土壤含水量、冻融等土壤状态对微波辐射的影响。\n
\n1）土壤冻融深度的测量方法是通过用筷子插入地表感觉土壤硬度或者将土壤表层冻结层直接挖出测量冻结层厚度，来判断冻融深度。直尺直接测量，当土壤硬度较大并且有冰晶时，认为土壤冻结；反之，则认为土壤未冻。数据可以用Microsoft Office软件打开。\n
\n2）地表辐射温度和物理温度测量仪器采用手持式红外温度计，测量时采用了近距测量模式。地表物理温度采用手持式红外温度计附带的热电偶温度计（某些样点同时使用了针式铂电阻温度计）。数据可以用Microsoft Office软件打开。\n
\n3）土壤湿度测量方法是：取0-1cm、1-3cm、3-5cm土样，放入自封袋，然后用微波炉烘干，计算其土壤重量含水量。土壤的体积含水量可以通过容重数据计算。 数据可以用Microsoft Office软件打开。\n
\n4）在地面同步测量过程中，对每个测量点地地表状况和周围环境状况进行了拍照，可以作为数据分析和使用的参考。文件格式为.jpg。\n
\n本数据集：K波段微波辐射计数据、L波段微波辐射计数据、土壤冻融深度数据、土壤湿度数据、地表温度数据、地表状况数据。", "ds_source": "
土壤冻融深度的测量方法是通过用筷子插入地表感觉土壤硬度或者将土壤表层冻结层直接挖出测量冻结层厚度，来判断冻融深度。地表辐射温度和物理温度测量仪器采用手持式红外温度计，测量时采用了近距测量模式。土壤湿度测量方法是取土样（0-1cm、1-3cm、3-5cm）用微波炉烘干，计算其土壤重量含水量。", "ds_process_way": "
1）土壤冻融深度的测量方法是通过用筷子插入地表感觉土壤硬度或者将土壤表层冻结层直接挖出测量冻结层厚度，来判断冻融深度。直尺直接测量，当土壤硬度较大并且有冰晶时，认为土壤冻结；反之，则认为土壤未冻。数据可以用Microsoft Office软件打开。\n
\n2）地表辐射温度和物理温度测量仪器采用手持式红外温度计，测量时采用了近距测量模式。地表物理温度采用手持式红外温度计附带的热电偶温度计（某些样点同时使用了针式铂电阻温度计）。数据可以用Microsoft Office软件打开。\n
\n3）土壤湿度测量方法是：取0-1cm、1-3cm、3-5cm土样，放入自封袋，然后用微波炉烘干，计算其土壤重量含水量。土壤的体积含水量可以通过容重数据计算。 数据可以用Microsoft Office软件打开。\n
\n4）在地面同步测量过程中，对每个测量点地地表状况和周围环境状况进行了拍照，可以作为数据分析和使用的参考。文件格式为.jpg。", "ds_quality": "
数据质量良好", "ds_acq_start_time": "2008-03-19 00:00:00", "ds_acq_end_time": "2008-03-20 00:00:00", "ds_acq_place": "黑河流域", "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": 267993292, "ds_files_count": 2, "ds_format": "jpg", "ds_space_res": null, "ds_time_res": "时", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "4ac9dbe5-3d27-4131-8d96-412236d9369a.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.db1866.2022", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2022-03-15 15:32:42", "last_updated": "2025-06-30 16:06:24", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.NIEER.2021.1834", "i18n": { "en": { "title": "Heihe integrated remote sensing joint test: L & K band airborne microwave radiometer ground synchronous observation data set in biandukou encrypted observation area (March 19, 2008)", "ds_format": "jpg", "ds_source": "
The measurement method of soil freezing and thawing depth is to judge the freezing and thawing depth by inserting chopsticks into the surface to feel the soil hardness or directly digging out the frozen layer on the surface of the soil to measure the thickness of the frozen layer. The surface radiation temperature and physical temperature are measured by hand-held infrared thermometer, and the short-range measurement mode is adopted. The soil moisture measurement method is to take soil samples (0-1cm, 1-3cm, 3-5cm) and dry them in microwave oven to calculate the soil weight and water content.", "ds_quality": "
\nGood data quality
", "ds_ref_way": "", "ds_abstract": "From 11:20 to 12:30 on March 19, 2008, BJT conducted the aviation flight test of airborne LK band airborne microwave radiometer. The observation angle of the microwave radiometer is vertical to the surface. Surface parameters include surface radiation temperature, surface physical temperature, weight water content of 0-1cm, 1-3cm and 3-5cm of soil profile (drying and weighing method), and freezing and thawing status of surface soil (expressed by freezing and thawing depth). The main purpose is to observe the effects of soil water content, freezing and thawing on microwave radiation.\n
\n1) The measurement method of soil freezing and thawing depth is to judge the freezing and thawing depth by inserting chopsticks into the surface to feel the soil hardness or directly digging out the frozen layer on the surface of the soil to measure the thickness of the frozen layer. Measured directly with a ruler, when the soil hardness is large and there are ice crystals, it is considered that the soil is frozen; On the contrary, it is considered that the soil is not frozen. Data can be opened with Microsoft office software.\n
\n2) The surface radiation temperature and physical temperature are measured by hand-held infrared thermometer, and the short-range measurement mode is adopted. The surface physical temperature adopts the thermocouple thermometer attached to the hand-held infrared thermometer (needle platinum resistance thermometer is also used at some sample points). Data can be opened with Microsoft office software.\n
\n3) The soil moisture measurement method is: take 0-1cm, 1-3cm and 3-5cm soil samples, put them into self sealing bags, and then dry them in microwave oven to calculate the soil weight and water content. The volumetric water content of the soil can be calculated from the bulk density data. Data can be opened with Microsoft office software.\n
\n4) In the process of ground synchronous measurement, the ground surface condition and surrounding environment condition of each measurement point are photographed, which can be used as a reference for data analysis and use. The file format is. Jpg.\n
\nThis data set includes K-band microwave radiometer data, L-band microwave radiometer data, soil freezing and thawing depth data, soil moisture data, surface temperature data and surface condition data.
", "ds_time_res": "时", "ds_acq_place": "Heihe River Basin", "ds_space_res": "", "ds_projection": "", "ds_process_way": "1) The measurement method of soil freezing and thawing depth is to judge the freezing and thawing depth by inserting chopsticks into the surface to feel the soil hardness or directly digging out the frozen layer on the surface of the soil to measure the thickness of the frozen layer. Measured directly with a ruler, when the soil hardness is large and there are ice crystals, it is considered that the soil is frozen; On the contrary, it is considered that the soil is not frozen. Data can be opened with Microsoft office software.\n
\n2) The surface radiation temperature and physical temperature are measured by hand-held infrared thermometer, and the short-range measurement mode is adopted. The surface physical temperature adopts the thermocouple thermometer attached to the hand-held infrared thermometer (needle platinum resistance thermometer is also used at some sample points). Data can be opened with Microsoft office software.\n
\n3) The soil moisture measurement method is: take 0-1cm, 1-3cm and 3-5cm soil samples, put them into self sealing bags, and then dry them in microwave oven to calculate the soil weight and water content. The volumetric water content of the soil can be calculated from the bulk density data. Data can be opened with Microsoft office software.\n
\n4) In the process of ground synchronous measurement, the ground surface condition and surrounding environment condition of each measurement point are photographed, which can be used as a reference for data analysis and use. The file format is. Jpg.", "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": [ "土壤冻融", "手持式红外温度计", "土壤水分", "地表辐射温度", "L波段机载微波辐射计", "土壤物理温度", "地面同步观测", "K波段机载微波辐射计" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "上游寒区水文试验区", "扁都口加密观测区", "黑河流域" ], "ds_time_tags": [ 2008 ], "ds_contributors": [ { "true_name": "赵少杰", "email": "geo_zhao@126.com", "work_for": "北京师范大学", "country": "中国" }, { "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": "赵天杰", "email": "zhaotj@radi.ac.cn", "work_for": "中国科学院遥感与数字地球研究所", "country": "中国" }, { "true_name": "车涛", "email": "chetao@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "赵少杰", "email": "geo_zhao@126.com", "work_for": "北京师范大学", "country": "中国" } ], "ds_managers": [ { "true_name": "赵少杰", "email": "geo_zhao@126.com", "work_for": "北京师范大学", "country": "中国" } ], "category": "遥感及产品" }