Air temperature (daily mean), Tarfala Research Station 1965-2011

Daily mean air temperature from Tarfala Research Station 1965-2011 based on automatic weather recordings. From 1965 to 1989 air temperatures were measured with platinum resistance thermometers (Pt100) placed in a Stevenson type radiation screen and recorded every minute by chart recorders. In 1988 a new automatic weather station was installed. Both systems were operated in parallel until 1998 to allow direct comparison. Since 1 July, 1989, the data from the new automatic station have been used in the Tarfala temperature series. In July 1995, the Swedish Meteorological and Hydrological Institute (SMHI) installed an automatic weather station approximately 20 m east of the Tarfala weather station as part of their national network. Data from SMHI and those from additional sensors at the Tarfala station were used to fill occasional gaps in the data series. When simultaneous measurements were not available gaps were filled using downscaled ERA40 data of the grid cell containing Tarfala.

塔尔法拉研究站（Tarfala Research Station）1965年至2011年基于自动气象观测记录的逐日平均气温数据集。1965至1989年，科研人员采用置于史蒂文森辐射屏（Stevenson type radiation screen）内的铂电阻温度计（Pt100）开展气温观测，通过图表记录仪每分钟记录一次观测数据。1988年，新的自动气象站完成部署，两套观测系统并行运行至1998年，以实现直接比对。自1989年7月1日起，塔尔法拉气温序列采用新自动气象站的观测数据。1995年7月，瑞典气象与水文研究所（Swedish Meteorological and Hydrological Institute, SMHI）在塔尔法拉气象站东侧约20米处布设自动气象站，作为其国家级气象观测网的组成部分。研究团队利用瑞典气象与水文研究所的观测数据，以及塔尔法拉站增设传感器的观测数据，填补了数据序列中偶发的缺失值。当无同步观测数据可用时，则采用包含塔尔法拉区域的网格点降尺度ERA40数据完成缺失值填补。