2008年6月2日，在临泽草地加密观测区2km×2km的MODIS同步样方中的H01—H32开展了MODIS的地面同步观测试验，测量的主要地面变量为冠层温度和地表温度，同时测量了浅层土壤水分，各测量点间距离为125m。本数据可为机载－星载遥感数据的地表温度和蒸散发的反演与验证提供基本的数据集。\n
\n地表温度同步测量：沿MODIS样方中H01-H08、H09-H16、H17-H24及H25-H32四个东西向样带每隔125m进行了往返两遍观测，包括手持式红外温度计测量的冠顶温度、半高温度以及地表热辐射温度，以及针式温度计获得的0-5cm土壤温度。\n
\n土壤水分同步测量：沿MODIS样方中同步样带1（H01-H08）、同步样带2（H09-H16）、同步样带3（H17-H24）及同步样带4（H25-H32）四个东西向样带每隔125m进行了一遍观测。其中在H01-H08、H09-H16、H17-H24三个样带采用POGO便携式土壤传感器获得土壤温度、土壤水分、损耗正切、土壤电导率、土壤复介电实部及虚部，以及环刀取土经烘干获得重量含水量、体积含水量及土壤容重；在H25-H32采用WET土壤水分速测仪测量获得土壤含水量、电导率、土壤复介电常数实部及土壤温度；以及环刀取土经烘干获得重量含水量、体积含水量及土壤容重。\n
\n由于土壤水分测量耗时，2008年6月2日土壤水分没有测量完成。考虑到土壤水分变化不大，在2008年6月3日对剩余样带进行了补测。沿MODIS样方中同步样带H30-H40、H41-H48、H49-H56及H57-H64四个东西向样带每隔125m进行了一遍观测。其中在H41-H48、H49-H56、H57-H64三个样带采用POGO便携式土壤传感器获得土壤温度、土壤水分、损耗正切、土壤电导率、土壤复介电常数实部及虚部，以及环刀取土经烘干获得重量含水量、体积含水量及土壤容重；在H33-H40采用WET土壤水分速测仪测量获得土壤含水量、土壤电导率、土壤复介电常数实部及土壤温度；以及环刀取土经烘干获得重量含水量、体积含水量及土壤容重。\n
\n本数据集包括2个地表温度测量Excel表格；8个土壤水分测量Excel表格。\n
", "ds_source": "2008年6月2日，在临泽草地加密观测区2km×2km的MODIS同步样方中的H01—H32开展了MODIS的地面同步观测试验，", "ds_process_way": "
地表温度同步测量：沿MODIS样方中H01-H08、H09-H16、H17-H24及H25-H32四个东西向样带每隔125m进行了往返两遍观测，包括手持式红外温度计测量的冠顶温度、半高温度以及地表热辐射温度，以及针式温度计获得的0-5cm土壤温度。
\n\n土壤水分同步测量：沿MODIS样方中同步样带1（H01-H08）、同步样带2（H09-H16）、同步样带3（H17-H24）及同步样带4（H25-H32）四个东西向样带每隔125m进行了一遍观测。其中在H01-H08、H09-H16、H17-H24三个样带采用POGO便携式土壤传感器获得土壤温度、土壤水分、损耗正切、土壤电导率、土壤复介电实部及虚部，以及环刀取土经烘干获得重量含水量、体积含水量及土壤容重；在H25-H32采用WET土壤水分速测仪测量获得土壤含水量、电导率、土壤复介电常数实部及土壤温度；以及环刀取土经烘干获得重量含水量、体积含水量及土壤容重。
\n\n由于土壤水分测量耗时，2008年6月2日土壤水分没有测量完成。考虑到土壤水分变化不大，在2008年6月3日对剩余样带进行了补测。沿MODIS样方中同步样带H30-H40、H41-H48、H49-H56及H57-H64四个东西向样带每隔125m进行了一遍观测。其中在H41-H48、H49-H56、H57-H64三个样带采用POGO便携式土壤传感器获得土壤温度、土壤水分、损耗正切、土壤电导率、土壤复介电常数实部及虚部，以及环刀取土经烘干获得重量含水量、体积含水量及土壤容重；在H33-H40采用WET土壤水分速测仪测量获得土壤含水量、土壤电导率、土壤复介电常数实部及土壤温度；以及环刀取土经烘干获得重量含水量、体积含水量及土壤容重。
", "ds_quality": "数据质量良好
", "ds_acq_start_time": "2008-06-02 00:00:00", "ds_acq_end_time": "2008-06-03 00:00:00", "ds_acq_place": "黑河流域,中游干旱区水文试验区,临泽草地加密观测区", "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": 106263, "ds_files_count": 2, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "时", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "b6322606-ab66-44ec-81bb-adcae1d3f23b.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.db1904.2022", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2022-03-15 18:14:51", "last_updated": "2025-06-30 16:08:03", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.NIEER.2021.1822", "i18n": { "en": { "title": "Integrated remote sensing joint experiment of Heihe River: MODIS ground synchronous observation data set of Linze grassland intensive observation area (June 2, 2008)", "ds_format": "excel", "ds_source": "On June 2, 2008, 2km in the intensive observation area of Linze grassland × The ground synchronous observation test of MODIS was carried out on h01-h32 in 2km MODIS synchronous quadrat,", "ds_quality": "
Good data quality
", "ds_ref_way": "", "ds_abstract": "On June 2, 2008, 2km in the intensive observation area of Linze grassland × The ground synchronous observation test of MODIS was carried out on h01-h32 in 2km MODIS synchronous quadrat. The main ground variables measured were canopy temperature and surface temperature. At the same time, the shallow soil moisture was measured, and the distance between each measurement point was 125m. This data can provide a basic data set for the inversion and verification of surface temperature and evapotranspiration from airborne satellite remote sensing data.\n
\nSynchronous measurement of surface temperature: round trip observation was conducted twice every 125m along the four East-West transects h01-h08, h09-h16, h17-h24 and h25-h32 in the MODIS quadrat, including crown top temperature, half high temperature and surface thermal radiation temperature measured by hand-held infrared thermometer, and 0-5cm soil temperature obtained by needle thermometer.\n
\nSynchronous measurement of soil moisture: observation was carried out every 125m along the four East-West transects of MODIS quadrat: synchronous sample belt 1 (h01-h08), synchronous sample belt 2 (h09-h16), synchronous sample belt 3 (h17-h24) and synchronous sample belt 4 (h25-h32). Among them, pogo portable soil sensors are used in h01-h08, h09-h16 and h17-h24 to obtain soil temperature, soil moisture, loss tangent, soil conductivity, real and imaginary parts of soil complex dielectric, and ring knife soil is taken and dried to obtain weight moisture content, volume moisture content and soil bulk density; In h25-h32, wet soil moisture meter was used to measure the soil water content, conductivity, real part of soil complex dielectric constant and soil temperature; And the ring knife soil is dried to obtain the weight water content, volume water content and soil bulk density.\n
\nDue to the time-consuming soil moisture measurement, the soil moisture measurement was not completed on June 2, 2008. Considering the small change of soil moisture, supplementary measurement was carried out for the remaining sample belt on June 3, 2008. Observations were made every 125m along the four East-West transects of synchronous transects h30-h40, h41-h48, h49-h56 and h57-h64 in the MODIS quadrat. Among them, pogo portable soil sensors are used in h41-h48, h49-h56 and h57-h64 to obtain soil temperature, soil moisture, loss tangent, soil conductivity, real and imaginary parts of soil complex dielectric constant, and ring knife soil is taken and dried to obtain weight moisture content, volume moisture content and soil bulk density; At h33-h40, the wet soil moisture meter was used to measure the soil water content, soil conductivity, real part of soil complex dielectric constant and soil temperature; And the ring knife soil is dried to obtain the weight water content, volume water content and soil bulk density.\n
\nThis data set includes 2 excel tables for surface temperature measurement; 8 excel tables for soil moisture measurement.\n
", "ds_time_res": "时", "ds_acq_place": "Heihe River Basin, arid area in the middle reaches, hydrological experimental area, Linze grassland intensive observation area", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Synchronous measurement of surface temperature: round trip observation was conducted twice every 125m along the four East-West transects h01-h08, h09-h16, h17-h24 and h25-h32 in the MODIS quadrat, including crown top temperature, half high temperature and surface thermal radiation temperature measured by hand-held infrared thermometer, and 0-5cm soil temperature obtained by needle thermometer
\nSynchronous measurement of soil moisture: observation was carried out every 125m along the four East-West transects of MODIS quadrat: synchronous sample belt 1 (h01-h08), synchronous sample belt 2 (h09-h16), synchronous sample belt 3 (h17-h24) and synchronous sample belt 4 (h25-h32). Among them, pogo portable soil sensors are used in h01-h08, h09-h16 and h17-h24 to obtain soil temperature, soil moisture, loss tangent, soil conductivity, real and imaginary parts of soil complex dielectric, and ring knife soil is taken and dried to obtain weight moisture content, volume moisture content and soil bulk density; In h25-h32, wet soil moisture meter was used to measure the soil water content, conductivity, real part of soil complex dielectric constant and soil temperature; And the ring knife soil is dried to obtain the weight water content, volume water content and soil bulk density
\nDue to the time-consuming soil moisture measurement, the soil moisture measurement was not completed on June 2, 2008. Considering the small change of soil moisture, supplementary measurement was carried out for the remaining sample belt on June 3, 2008. Observations were made every 125m along the four East-West transects of synchronous transects h30-h40, h41-h48, h49-h56 and h57-h64 in the MODIS quadrat. Among them, pogo portable soil sensors are used in h41-h48, h49-h56 and h57-h64 to obtain soil temperature, soil moisture, loss tangent, soil conductivity, real and imaginary parts of soil complex dielectric constant, and ring knife soil is taken and dried to obtain weight moisture content, volume moisture content and soil bulk density; At h33-h40, the wet soil moisture meter was used to measure the soil water content, soil conductivity, real part of soil complex dielectric constant and soil temperature; And the ring knife soil is dried to obtain the weight water content, volume water content and soil bulk density
", "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": [ "环刀", "针式温度计", "近红外遥感", "航天遥感", "植被", "地表辐射特性", "机载地面遥感", "可见光遥感", "地面验证信息", "WET土壤水分速测仪", "手持式红外温度计", "地表辐射温度", "冠顶温度", "地面同步观测", "土壤水分", "土壤温度", "MODIS", "POGO便携式土壤水分传感器" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "中游干旱区水文试验区", "黑河流域", "临泽草地加密观测区" ], "ds_time_tags": [ 2008 ], "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" }, { "true_name": "年雁云", "email": "yynian@lzu.edu.cn", "work_for": "兰州大学", "country": "中国" }, { "true_name": "王旭峰", "email": "wangxufeng@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" }