| Budget Amount *help |
¥21,710,000 (Direct Cost: ¥16,700,000、Indirect Cost: ¥5,010,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2019: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
Fiscal Year 2018: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2017: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
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| Outline of Final Research Achievements |
It is very important to have a clear understanding of how Antarctic continental ice is melting, and to more accurately predict sea level fluctuations. This study combined in-situ oceanic observation results around Shirase Glacier Tongue in Lutzow-Holm Bay, East Antarctica, with wind data, ice radar measurements, and computer modelling to understand ocean circulation underneath the Shirase Glacier Tongue. The melting is occurring as a result of deep and warm water flowing inwards towards the base of the Shirase Glacier Tongue. Warm water flows into Lutzow-Holm Bay along a deep underwater ocean trough and then flows upwards along the base of the tongue, warming and melting the base of Shirase Glacier Tongue. This melting occurs year-round, but is affected by easterly, alongshore winds that vary seasonally. When the winds diminish in the summer, the influx of the deep warm water increases, speeding up the melting rate.
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