settlement and church The old town 3he new town 4. Commerc atbout Ship tonnage 5. Mcdem sea terminal Time he rapid uplift of the land along the coast of Norrland, 80-90 em in 100 years, made it necessary to move ports down to deeper water. The increasing draught of modern ships has speeded up this process 海岸地面抬升(fcma)促使港口向河流下游深水处迁移,船只旽 位(吃水深度)的增加亦加速了该过程_港口城市形成海岸地面抬升(1cm/a)促使港口向河流下游深水处迁移, 船只吨 位(吃水深度)的增加亦加速了该过程—港口城市形成