本数据可为发展和验证主动微波遥感反演土壤水分及冻融状态算法及正向模型提供地面数据集。2007年10月18日，在峨堡样方1和峨堡样方2开展了Envisat ASAR数据的地面同步观测试验。Envisat ASAR数据为AP模式，VV/VH极化组合方式，过境时间约为11:17BJT。峨堡样方1和峨堡2均为3Grid×3Grid，每个Grid为30m×30m正方形，共计25个采样点（包含中心点和角点）。与卫星过境同步在每个采样点，采用WET土壤水分速测仪测量土壤体积含水量、土壤电导率、土壤温度及土壤复介电常数实部；采用手持式红外温度计获得地表辐射温度；并用环刀取土经烘干获得重量含水量、土壤容重及体积含水量。同时还对植被一些参数进行了相关调查，主要包括植被高度、覆盖度、植被含水量。
\n本数据可为发展和验证主动微波遥感反演土壤水分及冻融状态算法及正向模型提供地面数据集。
", "ds_source": "2007年10月18日，在峨堡样方1和峨堡样方2开展了Envisat ASAR数据的地面同步观测试验。
", "ds_process_way": "Envisat ASAR数据为AP模式，VV/VH极化组合方式，过境时间约为11:17BJT。峨堡样方1和峨堡2均为3Grid×3Grid，每个Grid为30m×30m正方形，共计25个采样点（包含中心点和角点）。与卫星过境同步在每个采样点，采用WET土壤水分速测仪测量土壤体积含水量、土壤电导率、土壤温度及土壤复介电常数实部；采用手持式红外温度计获得地表辐射温度；并用环刀取土经烘干获得重量含水量、土壤容重及体积含水量。同时还对植被一些参数进行了相关调查，主要包括植被高度、覆盖度、植被含水量。
", "ds_quality": "数据质量良好
", "ds_acq_start_time": "2007-10-18 00:00:00", "ds_acq_end_time": "2007-10-19 00:00:00", "ds_acq_place": "黑河流域.峨堡加密观测区.上游寒区水文试验区", "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": 38908, "ds_files_count": 2, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "时", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "84530b27-a93e-4109-9968-6788709aed7a.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.db1801.2022", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2022-03-14 16:42:22", "last_updated": "2025-06-30 16:08:38", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.NIEER.2021.1779", "i18n": { "en": { "title": "Heihe River Integrated Remote Sensing joint test: ENVISAT ASAR ground synchronous observation data set in EBO encrypted observation area during the pre-test period (October 18, 2007)", "ds_format": "excel", "ds_source": "On October 18, 2007, the ground synchronous observation test of ENVISAT ASAR data was carried out in EBU sample 1 and EBU sample 2.", "ds_quality": "
Good data quality.", "ds_ref_way": "", "ds_abstract": "
This data can provide a ground data set for the development and verification of active microwave remote sensing inversion algorithm and forward model of soil moisture and freeze-thaw state. On October 18, 2007, the ground synchronous observation test of ENVISAT ASAR data was carried out in EBU sample 1 and EBU sample 2. ENVISAT ASAR data is AP mode, VV / VH polarization combination mode, and the transit time is about 11:17bjt. Both EBAO sample 1 and EBAO sample 2 are 3grid × 3grid, 30m for each grid × 30m square, a total of 25 sampling points (including center point and corner point). Simultaneously with the satellite transit, the wet soil moisture meter is used to measure the real part of soil volume water content, soil conductivity, soil temperature and soil complex dielectric constant at each sampling point; The hand-held infrared thermometer is used to obtain the surface radiation temperature; The soil is taken with a ring knife and dried to obtain the weight water content, soil bulk density and volume water content. At the same time, some parameters of vegetation were investigated, mainly including vegetation height, coverage and vegetation water content
\nThis data can provide a ground data set for the development and verification of active microwave remote sensing inversion algorithm and forward model of soil moisture and freeze-thaw state.
", "ds_time_res": "时", "ds_acq_place": "Heihe River Basin. EBO intensive observation area. Hydrological test area in the upstream cold area", "ds_space_res": "", "ds_projection": "", "ds_process_way": "ENVISAT ASAR data is AP mode, VV / VH polarization combination mode, and the transit time is about 11:17bjt. Both EBAO sample 1 and EBAO sample 2 are 3grid × 3grid, 30m for each grid × 30m square, a total of 25 sampling points (including center point and corner point). Simultaneously with the satellite transit, the wet soil moisture meter is used to measure the real part of soil volume water content, soil conductivity, soil temperature and soil complex dielectric constant at each sampling point; The hand-held infrared thermometer is used to obtain the surface radiation temperature; The soil is taken with a ring knife and dried to obtain the weight water content, soil bulk density and volume water content. At the same time, some parameters of vegetation were investigated, mainly including vegetation height, coverage and vegetation water content.", "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", "ds_topic_tags": [ "航天遥感", "土壤", "微波遥感", "地表辐射温度", "地表辐射特性", "土壤温度", "土壤湿度/水分含量", "地面验证信息", "机载地面遥感" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "峨堡加密观测区", "上游寒区水文试验区", "黑河流域" ], "ds_time_tags": [ 2007 ], "ds_contributors": [ { "true_name": "晋锐", "email": "jinrui@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": "晋锐", "email": "jinrui@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_managers": [ { "true_name": "晋锐", "email": "jinrui@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "category": "遥感及产品" }