Presentation is loading. Please wait.

Presentation is loading. Please wait.

An altered atmospheric circulation regime during Last Glacial Maximum Camille Li, Aaron Donohoe David Battisti University of Washington.

Published byVanessa Underwood Modified over 7 years ago

Similar presentations

Presentation on theme: "An altered atmospheric circulation regime during Last Glacial Maximum Camille Li, Aaron Donohoe David Battisti University of Washington."— Presentation transcript:

1 An altered atmospheric circulation regime during Last Glacial Maximum Camille Li, Aaron Donohoe David Battisti University of Washington

2 poleward heat flux 850mb (Km/s) Coupled model winter jet and storminess

3 poleward heat flux 850mb (Km/s) Coupled model winter jet and storminess Compared to today’s climate, the ice age climate simulated by the coupled model exhibits a stronger, steadier Atlantic jet reduced storminess

4 poleward heat flux 850mb (Km/s) Coupled model winter jet and storminess

5 Coupled model winter jet and storminess poleward heat flux 850mb (Km/s) Laurentide elevation (km) ICE-5G ICE-4G

6 CAM Model Run with ICE 5G Vertically Integrated JFM Eddy Heat Transport Contours are the jet speed at 400 hPa K m/s LGM Modern LGM- Modern

7 Possible Causes of Reduced LGM Atlantic Storminess I.) Narrow LGM jet inhibits storm growth Jet Speed Cross Sections LGM jet is narrow NOT Strong enough effect II.) High LGM Static stability inhibits storm growth Strong LGM Baroclinicity still predicts stronger storm Growth III.) LGM Storms are not seeded efficiently Magnitude Geopotential Height Perturbation (meters) 0 04812 50 16 Days Since Storm Entered Atlantic Domain LGM Modern

Download ppt "An altered atmospheric circulation regime during Last Glacial Maximum Camille Li, Aaron Donohoe David Battisti University of Washington."

Similar presentations

IWTC-VI Topic 2.5November 2006 – Costa Rica Physical processes and downstream impacts of extratropical transition John R. Gyakum 1 Ron McTaggart-Cowan.

IWTC-VI Topic 2.5November 2006 – Costa Rica Physical processes and downstream impacts of extratropical transition John R. Gyakum 1 Ron McTaggart-Cowan.
Scaling relation B (Held, 2000; Schneider, 2006) Equalize the angular momentum conserving wind and the baroclinically critical wind Scaling relation A.

Scaling relation B (Held, 2000; Schneider, 2006) Equalize the angular momentum conserving wind and the baroclinically critical wind Scaling relation A.
Alan Robock Department of Environmental Sciences Rutgers University, New Brunswick, New Jersey USA

Alan Robock Department of Environmental Sciences Rutgers University, New Brunswick, New Jersey USA
What Makes the Wind Blow?

What Makes the Wind Blow?
Munehiko Yamaguchi Typhoon Research Department, Meteorological Research Institute of the Japan Meteorological Agency 9:00 – 12:00 2011.12.15 (Thr) Topic.

Munehiko Yamaguchi Typhoon Research Department, Meteorological Research Institute of the Japan Meteorological Agency 9:00 – 12: (Thr) Topic.
The atmospheric response to an Oyashio SST front shift in an atmospheric GCM Dima Smirnov, Matt Newman, Mike Alexander, Young-Oh Kwon & Claude Frankignoul.

The atmospheric response to an Oyashio SST front shift in an atmospheric GCM Dima Smirnov, Matt Newman, Mike Alexander, Young-Oh Kwon & Claude Frankignoul.
The Atmospheric Circulation Response to Climate Change-like Thermal Forcings in a Simple GCM Amy H. Butler 1, David W.J. Thompson 2, & Ross Heikes 2 1.

The Atmospheric Circulation Response to Climate Change-like Thermal Forcings in a Simple GCM Amy H. Butler 1, David W.J. Thompson 2, & Ross Heikes 2 1.
Evolution of the El Niño Southern Oscillation (ENSO) from the Last Ice Age to Today Andy Bush Dept. of Earth & Atmospheric Sciences University of Alberta.

Evolution of the El Niño Southern Oscillation (ENSO) from the Last Ice Age to Today Andy Bush Dept. of Earth & Atmospheric Sciences University of Alberta.
LGM Eddy Diagnostics and Energetics from CCSM. Winter Composite of VT at 850.

LGM Eddy Diagnostics and Energetics from CCSM. Winter Composite of VT at 850.
Causes of Reduced North Atlantic Storm Activity in A Global Climate Model Simulation of the Last Glacial Maximum Aaron Donohoe, David Battisti, Camille.

Causes of Reduced North Atlantic Storm Activity in A Global Climate Model Simulation of the Last Glacial Maximum Aaron Donohoe, David Battisti, Camille.
The Polar Amplification of Global Warming in the Absence of the Ice Albedo Feedback Aaron Donohoe and David Battisti University of Washington.

The Polar Amplification of Global Warming in the Absence of the Ice Albedo Feedback Aaron Donohoe and David Battisti University of Washington.
Why do we have storms in atmosphere?. Mid-atmosphere (500 hPa) DJF temperature map What are the features of the mean state on which storms grow?

Why do we have storms in atmosphere?. Mid-atmosphere (500 hPa) DJF temperature map What are the features of the mean state on which storms grow?
Delayed onset of the South American Monsoon during the Last Glacial Maximum Kerry H. Cook and Edward K. Vizy, Cornell University I. INTRODUCTION Climate.

Delayed onset of the South American Monsoon during the Last Glacial Maximum Kerry H. Cook and Edward K. Vizy, Cornell University I. INTRODUCTION Climate.
28 August 2006Steinhausen meeting Hamburg On the integration of weather and climate prediction Lennart Bengtsson.

28 August 2006Steinhausen meeting Hamburg On the integration of weather and climate prediction Lennart Bengtsson.
Motivation To understand how climate change may affect the North Atlantic and European regions, an understanding of the North Atlantic storm track is required.

Motivation To understand how climate change may affect the North Atlantic and European regions, an understanding of the North Atlantic storm track is required.
The role of tides in Mars’ atmosphere Alison F.C. Bridger a Robert M. Haberle b James Schaeffer b DPS, Pasadena, October 2000 a Dept. of Meteorology, San.

The role of tides in Mars’ atmosphere Alison F.C. Bridger a Robert M. Haberle b James Schaeffer b DPS, Pasadena, October 2000 a Dept. of Meteorology, San.
The General Circulation of the Atmosphere Tapio Schneider.

The General Circulation of the Atmosphere Tapio Schneider.
General Circulation of the Atmosphere René Garreaud www.dgf.uchile.cl/rene.

General Circulation of the Atmosphere René Garreaud
Some Preliminary Modeling Results on the Upper-Level Outflow of Hurricane Sandy (2012) JungHoon Shin and Da-Lin Zhang Department of Atmospheric & Oceanic.

Some Preliminary Modeling Results on the Upper-Level Outflow of Hurricane Sandy (2012) JungHoon Shin and Da-Lin Zhang Department of Atmospheric & Oceanic.
UPPER-LEVEL WINDS Atmospheric pressure, temperature and winds at surface.

UPPER-LEVEL WINDS Atmospheric pressure, temperature and winds at surface.

Similar presentations

Ads by Google