该数据集包含了通量观测矩阵中1号点的大孔径闪烁仪观测数据。1号点有两台型号分别为BLS900和zzlas的大孔径闪烁仪，北端为BLS900_1的接收端和zzlas_1的发射端，南端为BLS900_1的发射端和zzlas_1的接收端，其观测时间分别为2012年6月7日至2012年9月19日和2012年6月16日至2012年9月19日。站点位于甘肃省张掖市盈科灌区农田内，下垫面包含玉米地、大棚和村庄，主要是玉米地。1号塔北端的经纬度是100.3524E, 38.8547N，南端的经纬度是100.3510E, 38.8841N，海拔1552.75m。大孔径闪烁仪的有效高度33.45m，光径长度是3256m，采样频率为1min。\n
\n大孔径闪烁仪发布的数据为经过处理与质量控制后的30min平均数据，其中感热通量主要是结合自动气象站数据，基于莫宁-奥布霍夫相似理论通过迭代计算得到，主要的质量控制步骤包括：（1）剔除Cn2达到饱和的数据；（2）剔除解调信号强度较弱的数据；（3）剔除降水时刻及其前后一小时的数据；（4）剔除稳定条件下的弱湍流的数据（u*小于0.1m/s）。\n
\n关于发布数据的两点说明：（1）1号点LAS数据以BLS900_1为主，7.22之前（含7.22）BLS900_1缺失数据标记为-6999，7.22之后由zzlas_1的观测值补充，两者都缺失则以-6999标记。（2）数据表头：Date/Time ：日期/时间（格式：yyyy-mm-dd hh:mm:ss），Cn2 ：空气折射指数结构参数（单位：m-2/3），H_LAS ：感热通量（单位：W/m2）。\n
\n多尺度观测试验或站点信息请参考Liu et al. (2016)，观测数据处理请参考Xu et al.(2013)。
", "ds_source": "1号点有两台型号分别为BLS900和zzlas的大孔径闪烁仪，北端为BLS900_1的接收端和zzlas_1的发射端，南端为BLS900_1的发射端和zzlas_1的接收端，其观测时间分别为2012年6月7日至2012年9月19日和2012年6月16日至2012年9月19日。站点位于甘肃省张掖市盈科灌区农田内，下垫面包含玉米地、大棚和村庄，主要是玉米地。1号塔北端的经纬度是100.3524E, 38.8547N，南端的经纬度是100.3510E, 38.8841N，海拔1552.75m。大孔径闪烁仪的有效高度33.45m，光径长度是3256m，采样频率为1min。
", "ds_process_way": "大孔径闪烁仪发布的数据为经过处理与质量控制后的30min平均数据，其中感热通量主要是结合自动气象站数据，基于莫宁-奥布霍夫相似理论通过迭代计算得到，主要的质量控制步骤包括：（1）剔除Cn2达到饱和的数据；（2）剔除解调信号强度较弱的数据；（3）剔除降水时刻及其前后一小时的数据；（4）剔除稳定条件下的弱湍流的数据（u*小于0.1m/s）。\n
\n关于发布数据的两点说明：（1）1号点LAS数据以BLS900_1为主，7.22之前（含7.22）BLS900_1缺失数据标记为-6999，7.22之后由zzlas_1的观测值补充，两者都缺失则以-6999标记。（2）数据表头：Date/Time ：日期/时间（格式：yyyy-mm-dd hh:mm:ss），Cn2 ：空气折射指数结构参数（单位：m-2/3），H_LAS ：感热通量（单位：W/m2）。
", "ds_quality": "数据质量良好
", "ds_acq_start_time": "2012-06-07 00:00:00", "ds_acq_end_time": "2012-09-19 00:00:00", "ds_acq_place": "黑河流域", "ds_acq_lon_east": 100.31666666666666, "ds_acq_lat_south": 38.85472222222222, "ds_acq_lon_west": 100.31666666666666, "ds_acq_lat_north": 38.85472222222222, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 210720, "ds_files_count": 2, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "日", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "aaa2e52b-0b50-41b3-811a-0431d8a84920.png", "ds_thumb_from": 0, "ds_ref_way": "刘绍民，黑河生态水文遥感试验：非均匀下垫面地表蒸散发的多尺度观测试验-通量观测矩阵数据集（1号点大孔径闪烁仪-2012），国家冰川冻土沙漠科学数据中心(www.ncdc.ac.cn)，2020，doi：10.12072/ncdc.NIEER.db0033.2020", "paper_ref_way": "", "ds_ref_instruction": "本数据由“黑河生态水文遥感试验（HiWATER）”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": "c94b3578-20da-4346-9de9-c702b6ca8983", "ds_serv_man": "李红星", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": null, "quality_level": 3, "publish_time": "2021-08-27 10:29:39", "last_updated": "2021-08-27 10:29:39", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.nieer.2020.1582", "i18n": { "en": { "title": "Heihe River eco hydrological remote sensing experiment: multi-scale observation experiment of surface evapotranspiration on non-uniform underlying surface - flux observation matrix data set (point 1 large aperture scintillator-2012)", "ds_format": "", "ds_source": "There are two large aperture scintillators with models of bls900 and zzlas at point 1, and bls900 at the north end_ 1 receiver and zzlas_ The transmitting end of 1 is bls900 at the south end_ 1 transmitter and zzlas_ 1. The observation time is from June 7, 2012 to September 19, 2012 and from June 16, 2012 to September 19, 2012 respectively. The station is located in the farmland of Yingke Irrigation District, Zhangye City, Gansu Province. The underlying bread contains corn fields, greenhouses and villages, mainly corn fields. The longitude and latitude at the north end of tower 1 are 100.3524e, 38.8547n, and the longitude and latitude at the south end are 100.3510e, 38.8841n, with an altitude of 1552.75m. The effective height of the large aperture scintillator is 33.45m, the optical path length is 3256m, and the sampling frequency is 1min", "ds_quality": "
Good data quality
", "ds_ref_way": "", "ds_abstract": "The data set contains the observation data of large aperture scintillator at point 1 in the flux observation matrix. There are two large aperture scintillators with models of bls900 and zzlas at point 1, and bls900 at the north end_ 1 receiver and zzlas_ The transmitting end of 1 is bls900 at the south end_ 1 transmitter and zzlas_ 1. The observation time is from June 7, 2012 to September 19, 2012 and from June 16, 2012 to September 19, 2012 respectively. The station is located in the farmland of Yingke Irrigation District, Zhangye City, Gansu Province. The underlying bread contains corn fields, greenhouses and villages, mainly corn fields. The longitude and latitude at the north end of tower 1 are 100.3524e, 38.8547n, and the longitude and latitude at the south end are 100.3510e, 38.8841n, with an altitude of 1552.75m. The effective height of the large aperture scintillator is 33.45m, the optical path length is 3256m, and the sampling frequency is 1min.\n
\nThe data released by the large aperture scintillator is the 30min average data after processing and quality control. The sensible heat flux is mainly obtained by iterative calculation based on Monin Obukhov similarity theory in combination with the data of automatic weather station. The main quality control steps include: (1) eliminating the data of cn2 saturation（ 2) Eliminate the data with weak demodulated signal strength（ 3) Eliminate the data of precipitation time and one hour before and after it（ 4) Eliminate the data of weak turbulence under stable conditions (U * less than 0.1M / s).\n
\nTwo notes on data release: (1) Las data of point 1 is based on bls900_ 1 mainly, bls900 before (including) 7.22_ 1. The missing data is marked as - 6999, followed by zzlas after 7.22_ 1. If both are missing, it is marked with - 6999（ 2) Data header: date / time: date / time (Format: yyyy MM DD HH: mm: SS), cn2: structural parameter of air refractive index (unit: m-2 / 3), H_ Las: sensible heat flux (unit: w / m2).\n
\nFor multi-scale observation test or site information, please refer to Liu et al. (2016), and for observation data processing, please refer to Xu et al. (2013)
", "ds_time_res": "日", "ds_acq_place": "", "ds_space_res": "", "ds_projection": "", "ds_process_way": "The data released by the large aperture scintillator is the 30min average data after processing and quality control. The sensible heat flux is mainly obtained by iterative calculation based on Monin Obukhov similarity theory in combination with the data of automatic weather station. The main quality control steps include: (1) eliminating the data of cn2 saturation（ 2) Eliminate the data with weak demodulated signal strength（ 3) Eliminate the data of precipitation time and one hour before and after it（ 4) Eliminate the data of weak turbulence under stable conditions (U * less than 0.1M / s).\n
\nTwo notes on data release: (1) Las data of point 1 is based on bls900_ 1 mainly, bls900 before (including) 7.22_ 1. The missing data is marked as - 6999, followed by zzlas after 7.22_ 1. If both are missing, it is marked with - 6999（ 2) Data header: date / time: date / time (Format: yyyy MM DD HH: mm: SS), cn2: structural parameter of air refractive index (unit: m-2 / 3), H_ Las: sensible heat flux (unit: w / m2)
", "ds_ref_instruction": " " } }, "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": [ "大孔径闪烁仪", "感热通量", "大气辐射" ], "ds_subject_tags": [ "地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "黑河流域", "中游人工绿洲试验区", "通量观测矩阵" ], "ds_time_tags": [ 2012 ], "ds_contributors": [ { "true_name": "刘绍民", "email": "smliu@bnu.edu.cn", "work_for": "北京师范大学", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "刘绍民", "email": "smliu@bnu.edu.cn", "work_for": "北京师范大学", "country": "中国" } ], "ds_managers": [ { "true_name": "徐自为", "email": "xuzw@bnu.edu.cn", "work_for": "北京师范大学地理学与遥感科学学院", "country": "中国" } ], "category": "遥感及产品" }