Last year, the average sea level on the coast of Japan was about 8 cm higher than normal, the highest since we started collecting statistics.

The Japan Meteorological Agency points out that the Kuroshio Current, which is warmer than the surroundings, passed near the coast of Japan, in addition to the fact that sea levels are rising due to the effects of global warming, especially last year.

The Japan Meteorological Agency calculates the average sea level every year based on the tide level data observed at 16 points along the coast from Hokkaido to Kyushu.



The average sea level on the coast of Japan last year was 8.7 cm (87 mm) higher than the average for the last 30 years, which is the highest since 1906 (Meiji 39) when statistics were first collected.



According to the Japan Meteorological Agency, the sea level fluctuates in units of 10 or 20 years, but it has been on an upward trend since 1980, and the background is the progress of global warming.

Last year, the Kuroshio meandered and approached the Kanto and Tokai regions, and the warmer, larger volume of seawater raised the coastal sea level.



It is predicted that the average sea level along the coast of Japan will continue to rise due to the effects of global warming.

The Japan Meteorological Agency will continue to observe the storm surge damage as the sea level rises.