It is a question whether the abnormal elevation of sea level in the Oosaka bay, produced by the drift current near the Kii channel and by the decreasing air pressure when a cyclone passed over the western side of the bay, be constant along the coast or not.
The writer tried to determine the constants of the mean abnormal elevation of sea level in any place along the north-eastern coast fo the bay by the observational data of Sept. 11th 1937 at Hukae and Oosaka.
The results obtained are as follows:- Am=-1.93+1.32 (760-P)+0.4157_??_Wdt……for Hukae Am=-7.74+1.32 (760-P)+0.4577_??_Wdt……for Oosaka where Am means the mean abuormal elevation of sea level in cm in the bay.
Using the same data it is found that the most effective wind direction to cause high water is “SSW” and in this case the empirical formula for estimation of abnormal elevation is as follows:- A=-1.93+1.32 (760-P)+0.4157_??_Wdt+0.114υ²_??_(±3.4).
Instead of “SSW” components of wind, the pressure gradient components of the direction of 160° are employed as a suitable direction for this purpose and obtained the following formula. A=-1.93+1.32 (760-P)+0.4157_??_Wdt+4.362G cos (160°-ψ).