{"id":"a01635d7-dd32-48ef-811f-696f94fccf1e","title":"黑河生态水文遥感试验：水文气象观测网数据集（中游大满超级站大孔径闪烁仪-2016）","title_en":"HiWATER: Dataset of hydrometeorological observation network (large aperture scintillometer of Daman Superstation, 2016)","serial":"HiWATER","user_limit":"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。","instructions":"","description":"该数据集包含了黑河水文气象观测网中游大满站的大孔径闪烁仪通量观测数据。中游大满站分别架设了BLS450和BLS900型号的大孔径闪烁仪，北塔为BLS900的接收端和BLS450的发射端，南塔为BLS900的发射端和BLS450接收端。观测时间为2016年1月1日至2016年12月31日。站点位于甘肃省张掖市大满灌区内，下垫面是玉米、果园和大棚，以玉米为主。北塔的经纬度是100.3785E，38.8607N，南塔的经纬度是100.3685E，38.8468N，海拔高度约1556m。大孔径闪烁仪的有效高度22.45m，光径长度是1854m，采样频率是1min。\n大孔径闪烁仪原始观测数据为1min，发布的数据为经过处理与质量控制后的数据，其中感热通量主要是结合自动气象站观测数据，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（Cn2>1.43E-13）；（2）剔除解调信号强度较弱的数据（Average X Intensity<1000）；（3）剔除降水时刻的数据；（4）剔除稳定条件下的弱湍流的数据（u*小于0.1m/s）。在迭代计算过程中，选取Thiermann and Grassl(1992)的稳定度普适函数，详细介绍请参考Liu et al(2011, 2013)。\n关于发布数据的几点说明：（1）中游LAS数据以BLS900为主，缺失时刻由BLS450观测补充，两者都缺失则以-6999标记。（2）数据表头：Date/Time ：日期/时间（格式：yyyy/m/d h:mm），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）。数据时间的含义，如0:30代表0:00-0:30的平均；数据以*.xls格式存储。\n水文气象网或站点信息请参考Li et al. (2013)，观测数据处理请参考Liu et al. (2011)。","doi":"10.11888/Meteoro.tpdc.270895","projection":"4326","language":"zh","share_type":"offline","east":100.379,"west":100.379,"south":38.861,"north":38.861,"scale":null,"crs":null,"filesize":0.64,"share_policy":"c","ts_created":"2017-12-17T17:08:44+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-04-19T16:00:58.698030+08:00","time_description":"","datas_group":0,"time_description_en":"","data_format":"文本","project":[10,11,15],"specials":["ee3dfdf5-2e9f-4b61-a301-4fb49e30e3c2","d935d7e7-731f-47b6-8ad1-b29e2c33c1de","e8e4266f-7e88-4fbc-98c9-90033c250336","61c2516e-5a4d-445d-8b95-ac03f656805c","dccd1a26-0615-4de0-bf72-dc8e4953d30c","4e7b97a6-ee1f-4b51-83e5-04a100993973"],"cite":null,"review_status":5,"review_invite":[],"review_editor":null,"data_sources":null,"temporal_resolution":null,"spatial_resolution":null,"license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[192],"subtopics":{"metadata":"a01635d7-dd32-48ef-811f-696f94fccf1e","three_pole":null,"third_pole":null},"username":"胡晓利","review_time":null,"protected_duration":6,"protected_describe":null,"is_important":false,"hit_count":6455}