Seawater elevation observations: Hanko Pikku Kolalahti

The altitude of seawater in relation to the theoretical mean water and the N2000 elevation system from the Finnish coastal measuring station (mareographer). Since 1971, every hour and every minute after 2017.本数据集涵盖相对于理论平均海面的海水高程数据，以及采自芬兰沿海潮位测量站的N2000高程系统（N2000 Elevation System）数据，该站点的观测人员为潮位观测员（mareographer）；数据采集工作自1971年启动，2017年之后的采样频率为每小时及每分钟一次。