진해·마산만의 성층화 및 DO 농도변화
Stratification and DO Concentration Change in Chinhae-Masan Bay
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Abstract
Water temperature, salinity, and DO concentration were measured verticaly in the Chinhae-MasanBay over the course of 1 year. The characteristics of the stratification were analysed using the measured watertemperature and salinity data. The vertical DO concentration changes were also analysed through considerationof the degre of stratification and the level of sediment pollution. The results of the analyses show that thethermal stratification apears just before April and disapears after October. The salinity differences between thesurface and the bottom were 3.9. , 9.3. , 4.3. in April, August, and October, respectively. The DOconcentration change a27(veraged over water depth was 2.6(mg/L) in April; 8.3(mg/L) in June; 5.9(mg/L) inAugust; 7.2(mg/L) in September; and 4.4(mg/L) in October. The DO concentration changes were closely relatedto the levels of contamination and also to the effect of the mass-transfer inhibition between the surface andbottom layers due to the thermal and density stratification.