Interpolation of TC02 data on a 1° × 1° grid throughout the water column below 500 m depth in the Atlantic Ocean |
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| Authors: | C Goyet R Healy SJ McCue DM Glover |
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| Institution: | Woods Hole Oceanographic Institution, 360 Woods Hole Road, MS 25 Woods Hole, MA 02543, U.S.A. |
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| Abstract: | We have combined the available total CO2, temperature, salinity and oxygen data from the TTO, SAVE and WOCE programs in the Atlantic Ocean to parameterize TCO2 below 500 m depth as a function of potential temperature, salinity and apparent oxygen utilization. We then use the Levitus data set of temperature, salinity and oxygen to compute the TCO2 profiles at the resolution of the Levitus data set on a 1° × 1° grid with a vertical resolution of 33 layers, more densely spaced in the upper 1500 m than below. Depending on the method used to interpolate the data (along isopycnals or vertically by station), the estimated random uncertainty of the computed TC02 values in the Atlantic Ocean throughout the water column below the wintertime mixed layer depth ranges from ± 7.1 μmol kg−1 to t 5.9 μmol kg−1. |
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