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This study on the sectional and vertical distribution of dissolved oxygen (DO) and the O_2 fluxes acrossthe sea-air interface in East China Sea (ESC) waters shows that the waters were in steady state and thatthe difference of DO was great in upper and bottom waters in Apr. 1994; but that seawater mixingwas strong and the difference of DO was small in upper and bettom waters in Oct. 1994. The above con-dusions were specially obvious in continental shelf waters under 100m. The DO maximum in subsurfacelayer waters appeared only at several stations and in general the DO in the waters decreased with depth.The horizontal distributions of O_2 fluxes across the sea-air interface appeared in stripes in Leg 9404 whenmost regions covend were supersaturated with O_2. seawater to air flux wn large, and that on section No.1was 1.594 L/m~2·d. The horizontal distribution of O_2 fluxes across the sea-air interface appeared lumpy inLeg 9410, when most regions covered were unsaturated with O_2. O_2 was dissolved from air
This study on the sectional and vertical distribution of dissolved oxygen (DO) and the O_2 fluxes acrossthe sea-air interface in East China Sea (ESC) waters shows that the waters were in steady state and that the difference of DO was great in upper and bottom waters in Apr. 1994; but that seawater mixing was strong and the difference of DO was small in upper and bettom waters in Oct. 1994. The above con-dusions were specially obvious in continental shelf waters under 100m. The DO maximum in subsurfacelayer waters only at several stations and in general the DO in the waters decreased with depth. horizontal distributions of O_2 fluxes across the sea-air interface appeared in stripes in Leg 9404 whenmost regions covend were supersaturated with O_2. seawater to air flux wn large, and that on section No.1was 1.594 L / m ~ 2 · d. The horizontal distribution of O_2 fluxes across the sea-air interface was lumpy inLeg 9410, when most regions covered were unsaturated with O_2. O_2 was dissolved from air