| Budget Amount *help |
¥106,860,000 (Direct Cost: ¥82,200,000、Indirect Cost: ¥24,660,000)
Fiscal Year 2009: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2008: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Fiscal Year 2007: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2006: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
Fiscal Year 2005: ¥80,340,000 (Direct Cost: ¥61,800,000、Indirect Cost: ¥18,540,000)
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| Research Abstract |
We have carried out high-quality observations of geochemical tracers such as helium isotopes as well as hydrographic data and direct current measurements to infer deep current routes in the Pacific. In the western North Pacific, there is a westward flow at 2500m deep going to the Philippine Sea while northward current along the Marina Arc is dominant at 3000m deep. At deeper than 4000m where helium isotope anomaly is not found, we have discovered a northward flow by direct current measurements. These observations are consistent with a result of high-resolution numerical simulation.
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