우리나라 주변 상대해수면의 장기추세와 저주파 변동

Abstract

The long-term rising trend of relative sea level (RSL) is relatively small along the western coasts (from +0.34mm/yr at Inchon to +1.06mm/yr at Mokpo) and medium along the the southern coasts (more or less +1.80mm/yr), and very large in the Jeju Island (+5.08mm/yr at the Jeju Port and +7.26mm/yr at Seogipo). The rising trend of RSL is alternately increasing and decreasing along the eastern coasts, except at Ulsan (-0.30mm/yr) where it is falling slightly. Since the estimated land-level rise due to post-glacial rebound ranges only about -0.3 to -0.4mm/yr, the resultant sea levels does not alter the rising trend or low-frequency pattern in the seas around Korea. The TOPEX/Poseidon altimetry analysis reveals a basin-averaged increase of +6.1mm/yr in the East Sea, which is twice as much as the global rate of sea-level rise.