ROBOTICA : Research of Ocean-ice BOundary InTeraction and Change around Antarctica. Takeshi Tamura (National Institute of Polar Research)
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1 ROBOTICA : Research of Ocean-ice BOundary InTeraction and Change around Antarctica Takeshi Tamura (National Institute of Polar Research)
2
3 Global impacts of Antarctic continental shelf Warm. Salty water intrusion Basal melting glacial ice discharge sea level change Sea ice production, Bottom water formation MOC change
4 Land ice and sea ice of Antarctica Land ice discharge Sea ice production Low Low LH LH Cape Darnley Totten High Vinceness Bay Mertz High Rignot et al.(2013) Tamura et al.(2008)
5 Accelerating ice mass loss Cook IS Totten Loss Gain Vaughan et al.(2013) IPCC AR5
6 Ocean temperature Totten Pritchard et al. (2012) Heat from ocean is important in melting continental ice Salinity tells freshwater content, but not its origin Observation in East Antarctica is behind compared to Ross/Weddell
7 Oceanic change on the shelf Schmidko et al. (2014)
8 Bed topography of Antarctica Shirase West Antarctica East Antarctica Totten Cook IS Mertz
9 Fastice disintegration 2013/12/ /04/24
10 Bottom water formation Ohshima, Fukamachi, Williams, et al. (2013) Nature Geosci Kitade et al. (2014) GRL
11 Circulation and variabilities of Iceocean system at Lutzow-holm Bay Interannual variability in Ongul strait Warm water intrusion and ecosystem Under Hovde Glacier Decadal break up of land-fast sea ice an Shirase glacier Seasonal variability of Shirase Glacier discharge
12 Proposed Field program Land-fast ice (Lutzow-holm Bay) Polynya(Cape Darnley) Off ice shelf/glacier (off Wilks Land) Robotic/autonomous observations from Shirase/helicopters 110E Lutzow-holm bay Cape Darnley McRobertson Land Coast Vinceness Bay Totten Glacier Wilks Land Coast Enderby Land Coast
13 Items Process study on ice-ocean interaction and long-term changes of sea ice-ice shelf-ocean system in Lutzow-holm Bay Sea ice production and dense water formation off Cape Darnley Ocean-ice system and interaction off Wilks Land, incl. Totten Gl. A. Geophysical exploration of bathymetry B. Geodetic survey of motion and deformation of land and sea ices C. Glaciological survey of glacier/ice shelf dynamics D. Measurements of ice-ocean boundary characteristics E. Physical and chemical survey of sea ice F. Physical and chemical hydrographic survey of oceanic properties
14 Schematics Research of Ocean-ice BOundary InTeraction and Change around Antarctica (ROBOTICA)
15 Summary East-west comparisons based on mobility of Shirase 110E Interdisciplinary observations using autonomous techniques 測 Integration with Satellite observations and numerical modellings Interaction with bio-/eco-system observations Integrated with Cape Larger Darnley Vinceness Bay community Lutzow-holm Bay Shirase Gl. Totten Gl. Wilks Land POPS AUV ROV
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