{"id":"0d78b48a-1639-46eb-a8bf-4862535a4ace","title":"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（热扩散液流计）（2012年6月-9月）","title_en":"HiWATER: The multi-scale observation experiment on evapotranspiration over heterogeneous land surfaces  (MUSOEXE-12)-dataset of flux observation matrix (thermal dissipation sap flow velocity Probe) from Jun to Sep, 2012","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2012年6月14日至9月21日的通量观测矩阵中树干液流观测数据。研究区位于甘肃省张掖市盈科灌区内，根据防护林的不同高度及胸径，选取样树安装TDP(Thermal Dissipation sap flow velocity Probe, 热扩散液流计)，采用国产TDP插针式热扩散植物茎流计，型号为TDP30。样地依次为TDP-1点，TDP-2点和TDP-3点，分别位于LAS4-S，6号点和8号点附近。样树高度从高到低依次为TDP-2、TDP-1、TDP-3，胸径从大到小依次为TDP-2、TDP-3、TDP-1，以此代表整个区域进行树干液流的测量。探针安装高度为1.3米，安装方位为样树东南、西南和正北方向。\nTDP的原始观测数据为探针之间的温度差，采集频率为30秒，平均时间为10分钟。发布的数据为经过计算和处理之后的树干液流数据，包括每10分钟的液流速率（cm/h）、液流通量（cm3/h）和每天的蒸腾量（mm/d）。首先根据探针之间的温度差计算液流速率和液流通量，然后根据观测点的防护林带面积和树木间距，计算得到林带单位面积的蒸腾量Q。同时对计算之后的速率和通量值进行后处理：（1）剔除明显超出物理意义或超出仪器量程的数据；（2）缺失的数据用-6999标记；（3）因探针故障等原因引起的可疑数据用红色字体标识，并剔除确认有问题的数据。\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Qiao et al.(2015)。","doi":"10.3972/hiwater.106.2013.db","projection":"4326","language":"zh","share_type":"offline","east":100.3685,"west":100.3685,"south":38.8468,"north":38.8468,"scale":null,"crs":null,"filesize":5.28,"share_policy":"c","ts_created":"2016-07-14T23:20:11+08:00","doi_type":null,"ts_updated":"2021-04-19T16:41:51.255436+08:00","time_description":"","datas_group":0,"time_description_en":null,"data_format":"文本","project":[10,11,15],"specials":["ee3dfdf5-2e9f-4b61-a301-4fb49e30e3c2","cfd6c338-e92d-4b50-b2cf-00d09ef479e8","9b31c458-b259-48b2-a3b0-db71a6c313ad","4e7b97a6-ee1f-4b51-83e5-04a100993973"],"cite":"Liu SM, et al. MUlti-Scale Observation EXperiment on Evapotranspiration over heterogeneous land surfaces (MUSOEXE-12): Flux Observation Matrix. Journal of Geophysical Research, Manuscript in preparation.","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":[52],"subtopics":{"metadata":"0d78b48a-1639-46eb-a8bf-4862535a4ace","three_pole":null,"third_pole":null},"username":"胡晓利","review_time":null,"protected_duration":6,"protected_describe":null,"is_important":false,"hit_count":12119}