OCE/ HORIZ NITRATE ADVECT RATE(MMOL/M3/D) 907 OCE/ HORIZ NITRATE ADVECT RATE(MMOL/M3/D) OCE/ HORIZ NITRATE ADVECT RATE(MMOL/M3/D) OCE/ HORIZ NITRATE ADVECT RATE(MMOL/M3/D)