| Budget Amount *help |
¥15,470,000 (Direct Cost: ¥11,900,000、Indirect Cost: ¥3,570,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2016: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2015: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
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| Outline of Final Research Achievements |
Stable isotopic monitoring for precipitation and river water was made over mountainous region mainly in the central Japan, with regional survey for soil water, lake water, cold and hot springs. Based on these data set and meteorological/horological data, each term of catchment water and isotope budgets were estimated by spatiotemporal averaging using various types of numerical models. As a result, estimated precipitation was in good agreement with Radar-AMEDAS data, although Climate Mesh data were underestimated. In common catchments, groundwater flow across the divide accounts for 2.2-5.5% of precipitation and tends to be greater in large catchments with lower mean elevation.
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