| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
Annual banded corals have been used as high time-resolution proxy of past climate such as sea water temperature and salinity changes, so that coral skeletal records are potential archives of tropical cyclone activity. We improved a drilling and weighing method of subsampling for high precision and time-resolution intraseasonal reconstructions. At the Sekisei Lagoon of Ryukyu Archipelago in the Northwestern Pacific, daily and weekly instrumental records of sea surface temperature and salinity, and weekly coral isotope and Sr/Ca records from a core of living massive Porites colony were compared to cyclone and heavy rainfall events to test for detecting them.
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