Ideas for community engagement
Sea ice : physical world
Thickness of land fast sea ice
Rosie flying over sea ice
Fast ice vs sea ice
Platelet ice
Mosaic Arctic Expedition Ruzica Dadic
Sea ice projections
Importance of snow in sea ice projections
Albedo reflecting energy into space and into biological systems
Quantitative measurements
Salt in sea ice and migration of salt into snow
Bubbles
Different disciplines in mosaic
Sea ice biology
Phytoplankton responsible for primary production and balancing global carbon cycle
Constrain past sea ice conditions
Predict response of phytoplankton to change
Paleoclimates
Link changes with southern ocean and mid latitude climate changes
Enhanced circumpolar deep water current
Stratified water column
Rapid ice sheet retreat
Decreasing atmospheric CO2 concentrations
Warming temperatures
Platelet ice
Leads to thicker sea ice
Highly productive biological ecosystem
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Changing global thermohaline circulation
Craig Stevens NIWA
Polynyas: key area of atmospheric/ocean exchange
Argo floats starting to pe programmed to deal with ice and shallow water. Two more to be deployed along Victorialand coast.
Argo floats
Sea surface temps
Sea level rise around NZ
Christina Hulbe
Ice sheets reserves of fresh water.
Flow in ice sheets, speeds up and thins as gets closer to coast. Grounding line is boundary between sea ice and ice sheet.
Integrated systems and connecting processes grounding line retreat, microbial qualities, ocean circulation
Surface processes
Ocean cavity work
Kamb ice stream, west Antarctic ice sheet
Ice fin. work
ROV Ice fins collecting oceanographic data
Bed forms and currents
Natalie Robinson repeat profiling of water column and cod profiles
Time series telemetry
Clear stratification despite tidal mixing
Tides
Warm lower salty layer coming in to base of ice shelf and promoting melting. - : :
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Strong estuarine structure tidally dominated
Ian Hawes
University of Waikato
Sea ice biology designing ways to sample platelet ice community
Melt water pulses show different scale of sea level rise. Pulses have been recorded from Antarctica paleoreconstruction
Nancy Bertler RICE project
Motivated by sea level change