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Award ID contains: 1736319

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  1. ; (, Global Biogeochemical Cycles)
    Abstract Export rates of organic matter (OM) were determined based on PO43−, NO3−and O2budgets during GEOTRACES cruise GP15 in the Pacific Ocean that crossed subpolar, subtropical and equatorial regimes. Lowest OM export rates at 3–5 mmol C/m2/yr were found in the subtropical regions and highest rates at 9–12 mmol C/m2/yr were found in the equatorial and subpolar regions. Satellite based OM export rates showed similar regional trends but with a significantly larger range. The budget and satellite‐based OM export rates were 3–15× higher than estimates of particle loss rates based on234Th and sediment trap collections, with the differences primarily due to non‐particle forms of OM export and different integration times of methods. The efficiency of export varied from 0.1 to 0.3, with the lowest efficiencies in the subtropics and highest efficiencies in the subpolar and equatorial regions. 
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  2. ; ; (, Geophysical Research Letters)
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