| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Research Abstract |
Based on the analyses of ocean climatology, repeat hydrography and the data from profiling floats equipped with oxygen sensors, variations of nutrient and dissolved oxygen along the advection path from the formation region of major water masses in the North Pacific are described. In particular, a vertical profile of time rate of dissolved-oxygen-concentration change in the area dominated by the subtropical mode water is revealed. Significant change in the subduction rate associated with the Pacific Decadal Oscillation is detected, with suggesting its influence on subsurface nutrient distribution.
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