1.Ice Core as a Time Cupsule for Environmental Information 2.Approach to the Mysteries of the Mechanism of Glacier - Interglacier Cycle
3.The Mechanism of Meteorological and Environmental Changes, 4.Dome Fuji Station, 5.Deep Ice Drilling System, 6.Schedule


The Mechanism of Meteorological and Environmental Changes

We aim for the elucidation of the mechanism of climate and evironmental changes for 800kyr.

•XŠ๚ƒTƒCƒNƒ‹ƒOƒ‰ƒt2

One of the informations extracted from ice core is dust concentration variation. Dust concentration in ice core increases with the decrease of air temperature, that can elicit that terrestrial dust soared in the air heavily because sea level decreased and land territory spread during glacier period. The mechanism is suggested that the dust pumped into the sea activate phytoplankton, and phytoplankton absorbed CO2, greenhouse gas, and the decrease of CO2 accelerated the global colding. We aim for the elucidation of such as mechanisms.

@

Climate information extracted from ice core analysis

Climate SignalsAnalysis Elements
Climete ElementsAir temperatureOxygen Isotope@D/H@Chlathlate-hydrate Content
accumulation ratioseasonal variation of E.C. etc.
average accumulationTime Markers
Water Vapor volumed-excess
Atmospere Circulationd-excess, Dust, Chemical species@Radio active isotope
Air Speciesair analysisiCO2 CH4‚ศ‚วj
Evironmetal ElementsVolcanic ActivityE.C., pH, Anion, Heavy metal, Dust, permittivity
Biological ActivityC isotope, MSA, Organic matter, pollen
DrynessDust, Al, Ca
Sea Ice Prevalencesea-salt, MSA
Solar ActivityRadio Isotope
Geomagnetic Fieldremanent magnetism
Cosmic MatterCosmic dust
Anthropogenic MatterAnthropogenic matter
Ice thicknessAir content, Clathrate-hydrate content
Ice sheet stressGrain size, c-axis
Ice AgeSeasonal variationOxygen isotope, D/H, E.C., pH, H2O2, sulphate
Absolute index layerT, volcanic ash
Relative index layerOxygen istope in bubble, CH4
Radio Isotope210Pb@14C

1.Ice Core as a Time Cupsule for Environmental Information 2.Approach to the Mysteries of the Mechanism of Glacier - Interglacier Cycle
3.The Mechanism of Meteorological and Environmental Changes, 4.Dome Fuji Station, 5.Deep Ice Drilling System, 6.Schedule


กTOP

Copyright (C) 2002 by NIPR. All rights reserved.