Daily values of weather observations: Ranua

The data includes computational and measured daily values from the Finnish Meteorological Institute's weather observation station. The calculated values are the daily average air temperature and the daily precipitation. Measured values include minimum and maximum air temperature, minimum ground temperature and snow depth. The extremes of air temperature are measured at 06 and 18 UTC and the minimum ground temperature at 06 UTC. These represent extreme values over the previous 12-hour period (18-06 and 06-18 UTC).本数据集包含芬兰气象研究所（Finnish Meteorological Institute）气象观测站获取的计算日值与实测日值。其中，计算值为日平均气温与日降水量；实测值涵盖极端最低气温、极端最高气温、最低地面温度以及积雪深度。气温极端值的观测时刻为协调世界时（UTC）06时与18时，地面最低温度的观测时刻为协调世界时06时。上述观测值对应此前12小时时段（即18时至次日06时、06时至次日18时协调世界时）内的极端数值。