2008年3月14日在扁都口加密观测区开展了Envisat ASAR地面同步测量，测量内容主要包括地表温度、土壤剖面含水量（0-1cm、1-3cm、3-5cm、5-10cm、10-20cm，部分样方只测量了5cm）、表层土壤冻结深度。Envisat ASAR数据为AP模式，VV/VH极化组合方式，过境时间约为23:21BJT。\n
\n测量时间为2008年3月14日23:30-2008年3月15日1:00，测量样方包括扁都口C1样地、扁都口W2样地和扁都口B2样地；样方类型包括麦茬地、深翻地、油菜茬地。\n
\n1）土壤温度采用手持式红外温度计，采用近距离测量模式，分别测量了地表红外辐射温度和土壤表层的物理温度。同时记录了测量点的地表类型。数据文件可以用Microsoft Office软件打开。\n
\n2）土壤含水量：取0-1cm、1-3cm、3-5cm、5-10cm、10-20cm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。\n
\n3）土壤冻结深度的测量方法是通过用筷子插入土壤感觉其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
\n本数据集包括4个文件夹，分别为：ASAR数据、扁都口C1样地测量数据、扁都口W2样地测量数据、扁都口B2样地测量数据。", "ds_source": "
2008年3月14日在扁都口加密观测区开展了Envisat ASAR地面同步测量，测量内容主要包括地表温度、土壤剖面含水量（0-1cm、1-3cm、3-5cm、5-10cm、10-20cm，部分样方只测量了5cm）、表层土壤冻结深度。\n
\nEnvisat ASAR数据为AP模式，VV/VH极化组合方式，过境时间约为23:21BJT。\n
\n测量时间为2008年3月14日23:30-2008年3月15日1:00，测量样方包括扁都口C1样地、扁都口W2样地和扁都口B2样地；样方类型包括麦茬地、深翻地、油菜茬地。", "ds_process_way": "
1）土壤温度采用手持式红外温度计，采用近距离测量模式，分别测量了地表红外辐射温度和土壤表层的物理温度。同时记录了测量点的地表类型。数据文件可以用Microsoft Office软件打开。\n
\n2）土壤含水量：取0-1cm、1-3cm、3-5cm、5-10cm、10-20cm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。\n
\n3）土壤冻结深度的测量方法是通过用筷子插入土壤感觉其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。", "ds_quality": "
数据质量良好", "ds_acq_start_time": "2008-03-14 00:00:00", "ds_acq_end_time": "2008-03-15 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": 105393865, "ds_files_count": 2, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "时", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "b19aeee2-840e-4a74-88ad-dc5dcc93d0f3.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.db1885.2022", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2022-03-15 17:03:41", "last_updated": "2025-06-30 16:05:48", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.NIEER.2021.1835", "i18n": { "en": { "title": "Heihe integrated remote sensing joint test: ENVISAT ASAR ground synchronous observation data set in biandukou encrypted observation area (March 14, 2008)", "ds_format": "excel", "ds_source": "
On March 14, 2008, ENVISAT ASAR ground synchronous measurement was carried out in biandukou intensive observation area. The measurement contents mainly include surface temperature, soil profile water content (0-1cm, 1-3cm, 3-5cm, 5-10cm, 10-20cm, only 5cm in some quadrats) and surface soil freezing depth.\n
\nENVISAT ASAR data is AP mode, VV / VH polarization combination mode, and the transit time is about 23:21bjt.\n
\nThe survey time is from 23:30 on March 14, 2008 to 1:00 on March 15, 2008. The survey quadrats include biandukou C1 sample plot, biandukou W2 sample plot and biandukou B2 sample plot; Quadrat types include wheat stubble land, deep ploughing land and rape stubble land.", "ds_quality": "
Good data quality", "ds_ref_way": "", "ds_abstract": "
On March 14, 2008, ENVISAT ASAR ground synchronous measurement was carried out in biandukou intensive observation area. The measurement contents mainly include surface temperature, soil profile water content (0-1cm, 1-3cm, 3-5cm, 5-10cm, 10-20cm, only 5cm in some quadrats) and surface soil freezing depth. ENVISAT ASAR data is AP mode, VV / VH polarization combination mode, and the transit time is about 23:21bjt.\n
\nThe survey time is from 23:30 on March 14, 2008 to 1:00 on March 15, 2008. The survey quadrats include biandukou C1 sample plot, biandukou W2 sample plot and biandukou B2 sample plot; Quadrat types include wheat stubble land, deep ploughing land and rape stubble land.\n
\n1) The soil temperature was measured by hand-held infrared thermometer and short-range measurement mode. At the same time, the surface type of the survey point is recorded. Data files can be opened with Microsoft office software.\n
\n2) Soil moisture content: take 0-1cm, 1-3cm, 3-5cm, 5-10cm and 10-20cm soil samples, put them into self sealing bags, and then dry them in microwave oven to calculate the soil weight moisture content.\n
\n3) The measurement method of soil freezing depth is to judge the freezing and thawing depth by inserting chopsticks into the soil to feel its 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
\nThis data set includes four folders: ASAR data, Biandu port C1 sample measurement data, Biandu port W2 sample measurement data, and Biandu port B2 sample measurement data.
", "ds_time_res": "时", "ds_acq_place": "Heihe River Basin", "ds_space_res": "", "ds_projection": "", "ds_process_way": "1) The soil temperature was measured by hand-held infrared thermometer and short-range measurement mode. At the same time, the surface type of the survey point is recorded. Data files can be opened with Microsoft office software.\n
\n2) Soil moisture content: take 0-1cm, 1-3cm, 3-5cm, 5-10cm and 10-20cm soil samples, put them into self sealing bags, and then dry them in microwave oven to calculate the soil weight moisture content.\n
\n3) The measurement method of soil freezing depth is to judge the freezing and thawing depth by inserting chopsticks into the soil to feel its 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.", "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": [ "地面同步观测", "土壤冻结深度", "手持式红外温度计", "地表辐射温度", "土壤物理温度", "土壤水分", "ASAR" ], "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": "潘金梅", "email": "", "work_for": "北京师范大学", "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" }