Colloquia Fall 2012Spring 2012 | Spring 2013
Colloquia are held in ATS room 101; Discussion will begin at 3:30pm. Refreshments will be served at 3:00pm in the coffee lounge. Please contact Thomas Birner [thomas at atmos.colostate.edu] for more information.
Sea Ice and Consequences of an Ice-Diminished Arctic Ocean
December 13, 2012
The Arctic is currently undergoing rapid environmental changes. Over the past few decades, the Arctic has warmed at about twice the rate as the rest of the planet. As a result, significant changes are happening in the Arctic sea ice cove...
Climate Science Education, Outreach, and Diversity at CMMAP
November 29, 2012
CMMAP is one of 17 NSF Science and Technology Centers, developing and using multiscale models to better understand the climate system. A crucial part of every STC is to enhance education, engage external audiences about the research, and...
Entrainment in Stratocumulus
November 15, 2012
We know that stratocumulus clouds (Sc) contribute significantly to the Earth’s radiation budget and thus must be understood for predicting climate change. This talk looks at relatively recent Sc measurements (POST; Physics of Stratocum...
The influence of low-frequency variability on the life cycles of high-impact weather during the winters of 2009-2011: simulations, predictions and observations
November 8, 2012
It has been widely noted that the anomalously extreme weather events of the recent winter seasons coincided with large-amplitude sub-seasonal to seasonal anomalies, particularly in the arctic modes of variability, i.e., Northern Annular ...
Reforecasts: what are they good for? Using multi-decadal reforecasts from the NCEP Global Ensemble Forecast System
Thomas M. Hamill
November 1, 2012
Reforecasts, or hindcasts, are retrospective numerical forecasts, ideally from the same model and data assimilation system that is used operationally. We have recently created a reforecast data set for the NCEP medium-range global ensemb...
The COMET Program's Support of University Education
October 25, 2012
For over 20 years, COMET has engaged in a variety of educational activities in an effort to build a bridge between the academic and operational meteorology communities. With computer-based training, classroom courses, and support of oper...
The Science of Tornado and Lightning Chasing
October 18, 2012
For the past 20 years, Samaras has combined his technical expertise to his passion of chasing storms to collect first-ever data and images from tornadoes and lightning. He will share the techniques he uses, some of the data he has collec...
Colorado's Water History, Rights & Allocation System: A Climate-Driven System
October 11, 2012
In 1859, gold was discovered along Cherry Creek in Denver, and set in motion an epic transformation of Colorado and the West. The "Great American Desert" soon became an irrigated garden of abundance, in spite of climatic challenges. In 1...
The Detailed Structure of the LaGrange, Wyoming Tornado Observed during VORTEX2
October 4, 2012
One of the most ambitious field projects organized to study tornadoes and tornadic storms occurred during the spring and summer of 2009/2010 (VORTEX2 - Verification of the Origins of Tornadoes Experiment). A number of mobile platforms we...
Long-lived Rossby wave trains as precursors to strong winter cyclones over Europe
Prof. Volkmar Wirth
September 26, 2012
The statistical connection between strong surface cyclones over Europe and long-lived upper-tropospheric Rossby wave trains is examined for the Northern Hemisphere winter season using 45 years of reanalysis data. Dates are selected for ...
Climate change and recent climate extremes: The Russian Heat Wave of 2010
Kevin E. Trenberth
September 6, 2012
Following a discussion on the framing of how climate extremes relate to climate change, an examination will be given of a number of large impact climate extremes that occurred in 2010 and 2011. The main focus is on the Russian heat wave ...
Deep Ocean Circulation Changes as the Primary Driver for Global Climate Change
Dr. William Gray
August 30, 2012
An important process with regards to climate change is the prevalence of multi-decadal periods of fluctuations in both global and local temperature, precipitation, and other climate elements. The usual period of these variations is abou...
Faculty Intro Jamboree
Profs. Birner, Denning, Johnson, Kreidenweis, Kummerow, O'Dell, Robinson, Schumacher, Thompson
August 23, 2012
Profs. Birner, Denning, Johnson, Kreidenweis, Kummerow, O'Dell, Robinson, Schumacher and Thompson provide overviews of their research areas and groups in the department.
Organization and Structure of Orographic Convection Producing Flash Floods in Southern Switzerland
Luca Panziera (MeteoSwiss)
July 26, 2012