Continuous sediment temperature observations at station BEFmate_S3pio (2020-10)

Temperature in the sediment surface layer (in approximately 0.05m depth) was measured with DEFI-T miniature temperature recorders (JFE Advantech Co., Ltd., Tokyo; DEFI-T). The manufacturer pre-calibrated temperature recorders and were installed on the experimental islands and in salt-marsh enclosed plots at different elevation levels. Recorded data were internally logged until the readout with the DEFI Series software (V1.02). The position was derived from a portable DGPS-system. Date and Time is given in UTC.Data handling was performed according to Zielinski et al. (2018): Post-processing of collected data was done using MATLAB (R2018a). Quality control was performed by (a) erasing data covering maintenance activities, (b) removing outliers, defined as data exhibiting changes of more than two standard deviations within one time step, and (c) visually checks.本研究采用DEFI-T微型温度记录仪（JFE Advantech株式会社，东京；DEFI-T）对沉积物表层（约0.05m深度）的温度进行测定。该温度记录仪已由制造商完成预先校准，并被部署于不同高程的实验岛及盐沼封闭样地中。采集的温度数据通过内置日志模块存储，直至使用DEFI系列软件（V1.02）完成数据读取。测点位置通过便携式差分全球定位系统（DGPS）获取，数据的日期与时间均采用协调世界时（UTC）标注。数据处理参照Zielinski等（2018）的研究方法完成：使用MATLAB（R2018a）对采集数据进行后处理；质量控制环节包括：（a）剔除与设备维护活动相关的数据集，（b）移除异常值——异常值定义为单时间步内变化幅度超过两倍标准差的数据，以及（c）人工目视检查。