Marine Observation Data in the Adjacent Sea of Oita Prefecture

Observations were carried out once a month for 28 years from April 1965 to March 1993. Observation items include year, month, day, time, water temperature, salinity, transparency, data on waves and swells, wind direction and force, atmospheric temperature, cloud forms, weather, and atmospheric pressure.

Measurements of COD, NH4-N, NO2-N, NO3-N, PO4-P, DO were carried out only in Beppu Bay, and recorded on a personal computer. The input data capacity of latitude and longitude values are limited only to degrees. The exact values are as follows: Min.