Assumptions: 100% Present Atmospheric Level (PAL) is 5 mL/L at 25 deg. C To change Surface DO and PAL change cell b35 and press F9 to recalculate. Climates are based on thickness of the pycnocline with surface mixed layer always 100 meters. Thus Glacial climate = 100 to 1000 meters or 900 meters thick InterGlacial = 100 to 1500 meters or 1400 meters thick NonGlacial = 100 to 3000 meters or 2900 meters thick Sea Water temperatures are for "Tropical conditions" with a surface temperature of 25 deg C. Temperature in Deep Mixed Layer below the pycnocline is: Glacial (modern) = 5 deg C InterGlacial = 7.5 deg C (not 10 deg C as given in Table 1 (Wilde, 1987, p. 445)) NonGlacial = 10 deg C Temperature in the pycnocline is smoothly integrated with depth between the surface temperature and the deep water temperature.