Seawater elevation observations: Pori Mäntyluoto Kallo

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.本数据集的观测值为相对于理论平均海面与N2000高程系统的海水水位高度，数据源自芬兰沿海测量站（海洋水文测量员）。其采样规则为：自1971年起每小时采集一次，2017年之后调整为每分钟采集一次。