Beyond the Comfort Zone Abrupt Climate Change and the Arctic Early Warming System
Jason E. Box, PhD
- Assoc. Prof., Dept. of Geography
The Ohio State University Earthkeeping Summit: 31 March, 2012, Columbus, OH
Friday, March 30, 2012
Beyond the Comfort Zone Abrupt Climate Change and the Arctic Early - - PowerPoint PPT Presentation
Beyond the Comfort Zone Abrupt Climate Change and the Arctic Early Warming System Jason E. Box, PhD Assoc. Prof., Dept. of Geography The Ohio State University Earthkeeping Summit: 31 March, 2012, Columbus, OH Friday, March 30, 2012
Beyond the Comfort Zone Abrupt Climate Change and the Arctic Early Warming System
Jason E. Box, PhD
The Ohio State University Earthkeeping Summit: 31 March, 2012, Columbus, OH
Friday, March 30, 2012
Friday, March 30, 2012
State of the Climate
Meteorological Society's annual State of the Climate reports.
annually since 2006 by The US National Oceanic and Atmospheric Administration.
the science of climate change by the UN's Intergovernmental Panel on Climate Change (IPCC).
2014"
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island area: 2.16 x 106 km2 ice sheet area: 1.69 x 106 km2 isolated ice caps: 59,746 km2 2300 km x 200-700 km 87% area above 1000 m 3 million km3 ice
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Humboldt GITS NGRIP Tunu-N NASA-E Summit NASA-U CP1&2 JAR1,2,3 Swiss Camp KAR NASA-SE Saddle South Dome DYE-2
Steffen, K. and J.E. Box, 2001: Surface climatology of the Greenland ice sheet: Greenland Climate Network 1995-1999,
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Ice Reflectivity
MODIS MOD10A1 Albedo GC-Net
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Surface Air Temperature
MAR GC-Net
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MAR GC-Net
Solar Energy
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1 frame per day, view from site A
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max displacement = 65 pixels / day
Displacement [pixels / day]
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August 2005 model verification, measuring snow accumulation at the point where models predict the most snowfall in Greenland.
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Photo: Jason Box, 4 July, 2009
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Greenland Glacier Cumulative Area Changes
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monthly annual
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degrees ¡C
Instrumental Surface Air Temperature Anomalies
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Hansen, J.E., and S. Lebedeff, 1987: Global trends of measured surface air temperature.
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testimony on climate change to congressional committees in the 1980s
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2011 zonal average anomalies
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Albedo Change
Box, J.E., X. Fettweis, J.C. Stroeve, M. Tedesco, D.K. Hall, and K. Steffen, Greenland ice sheet albedo feedback: thermodynamics and atmospheric drivers, The Cryosphere, tc-2012-5, 20 Jan. 2012
Friday, March 30, 2012
Velicogna, I. and J. Wahr (2006). Measurements of Time-Variable Gravity Show Mass Loss in Antarctica, Science, Vol. 311 no. 5768 pp. 1754-1756 DOI: 10.1126/science.1123785
Friday, March 30, 2012
Levitus, S., J. I. Antonov, T. P. Boyer, R. A. Locarnini, H. E. Garcia, and A. V. Mishonov (2009), Global
Lett., 36, L07608
The heat content of the world ocean increased significantly, representing a volume mean warming of 0.06 C, corresponding to a warming rate of 0.3 W / m^2 per unit area of Earth’s surface. The global volume mean temperature increase for the 0- to 300-meter layer was 0.31 C between the mid-1950s and mid-1990s.
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Intergovernmental Panel on Climate Change (IPCC) Climate Change, The Scientific Basis, 2007, Fourth Assessment Report
Greenhouse Gas Concentrations
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The Copenhagen Diagnosis, 2009: Updating the World on the Latest Climate Science.
Gruber, A.M. Haywood, D.J. Karoly, G. Kaser, C. Le QueÅLreÅL, T.M. Lenton, M.E. Mann, B.I. McNeil, A.J. Pitman, S. Rahmstorf, E. Rignot, H.J. Schellnhuber, S.H. Schneider, S.C. Sherwood, R.C.J. Somerville, K. Steffen, E.J. Steig, M. Visbeck, A.J. Weaver. The University of New South Wales Climate Change Research Centre (CCRC), Sydney, Australia, 60pp.
Surface Air Temperature
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Grinsted, A., J. C. Moore, and S. Jevrejeva (2010), Reconstructing sea level from paleo and projected temperatures 200 to 2100 AD, Clim. Dyn., doi:10.1007/s00382-008-0507-2.
Global Sea Level
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after R. B. Alley, P. U. Clark, P. Huybrechts, I. Joughin, Ice-Sheet and Sea-Level Changes, Science, 2005
395 ppmv 40% above pre-industrial +21 m
>35 million years ago 32 million years ago ~250 years ago 21,000 years ago
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The Balancing Act
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http://www.drawthelineattarsands.com/images/uploads/slideshows/CA09-213.jpg
Extreme Energy, going after every last drop in the Athabascan Oil Sands
myriad problems
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1,253 arrests at the No Keystone XL Pipeline White House Sit-In
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1,253 arrests at the No Keystone XL Pipeline White House Sit-In
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1,253 arrests at the No Keystone XL Pipeline White House Sit-In
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http://usnews.msnbc.msn.com/_news/2012/03/25/10853227-march-has-meant-6000-weather- records-broken
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Satellite picture March 21, 2012, showing the blocking high and heat dome in place over the Great Lakes and East, and a slow-moving storm over the South Central states. Credit: NOAA.
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Warm Air Sunny
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Francis, J. A., and S. J. Vavrus (2012), Evidence linking Arctic amplification to extreme weather in mid-latitudes, Geophys. Res. Lett., 39, L06801, doi:10.1029/2012GL05100.
slower eastward progression of Rossby waves (Jet Stream) in the upper-level flow: 1) weakened E-W winds, and 2) increased wave amplitude. evident in autumn and winter consistent with sea-ice loss, also apparent in summer, possibly related to earlier snow melt on high-latitude land. more persistent wave patterns, which may lead to an increased probability of extreme weather events that result from prolonged conditions, such as drought, flooding, cold spells, and heat waves.
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the state’s largest volunteer initiative
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B1 A1 A2
IPCC Fourth Assessment Report, The science of climate change, 2007
Climate Model Projections
Scenario B 2000: globally harmonious adoption of Kyoto Protocol Scenario A2 2000: fossil fuel intensive business as usual
Temperature Change by 2099
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warming less sunlight reflected from the surface warming less sunlight reflected from the surface
less persistent snow less persistent snow
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cooling more persistent snow more sunlight reflected from the surface cooling more persistent snow more sunlight reflected from the surface
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