Colloquia Spring 2014Fall 2013 | Fall 2014
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.
A new approach for parameterizing cloud microphysics based on the prediction of ice-phase particle properties
May 28, 2014
The representation of cloud microphysics continues to be a source of uncertainty in atmospheric models. Traditionally, microphysics schemes partition ice-phase particles into pre-defined categories with prescribed bulk characteristics. T...
Observational Studies of the Coupling between Dynamics and Chemistry in the Upper Troposphere and Lower Stratosphere (UTLS) from Recent Field Campaigns
May 9, 2014
The upper troposphere and lower stratosphere (UTLS) is a region of complex dynamical, chemical and radiative characteristics, with strong gradients in trace species and enhanced climate sensitivity to changes in water vapor, ozone, aeros...
Air Pollution and You: The Fort Collins Commuter Study
May 2, 2014
The Volckens group conducts research on air pollution at the interface of engineering and public health. In this talk, I will present preliminary results from the (ongoing) Fort Collins Commuter Study, a 5-year project funded by the Nati...
Revisiting the Rectifier: How CALIPSO LIDAR Data Help Quantify the Global Carbon Budget
April 25, 2014
About half the CO2 emitted by burning fossil fuels is removed from the atmosphere by sink processes, dramatically reducing the rate of accumulation, but quantifying and predicting future sink behavior (especially on land) has proved diff...
Dynamics of secondary eyewall formation observed in Hurricane Rita
Anthony C. Didlake, Jr.
April 18, 2014
During the lifetime of some intense tropical cyclones (TCs), rainbands in the inner core of the storm coalesce to form a ring of convection around the pre-existing eyewall. The formation of this ring, known as the secondary eyewall, is f...
Stratospheric water vapour and climate: from radiative forcing to the global circulation
April 11, 2014
An Investigation of Tornado Maintenance and Demise Using VORTEX2 Observations
April 4, 2014
The second Verification of the Origins of Rotation in Tornadoes Experiment (VORTEX2), carried out in 2009 and 2010, was designed to obtain simultaneous observations of wind and thermodynamic fields within tornadic and nontornadic superce...
Tracking and Talking Drought in a Changing Climate
March 7, 2014
No abstract submitted.
A study of aerosol impacts on clouds and precipitation development in a large winter cyclone
February 28, 2014
Aerosols influence cloud and precipitation development in complex ways due to myriad feedbacks at a variety of scales from individual clouds through entire storm systems. This paper describes the implementation, testing, and results of a...
Ecoclimate Teleconnections: remote effects of the interactions between ecosystems and climate
February 21, 2014
In this talk I will show that large-scale afforestation in the northern mid latitudes warms the Northern Hemisphere and alters global circulation patterns in climate model experiments. An expansion of dark forests increases the absorptio...
Generalizing Tropical Cyclone Potential Intensity Estimates to Include Vertical Shear Effects
January 24, 2014
Empirical and theoretical methods have been used to estimate the upper bound on tropical cyclone maximum winds, which is often referred to as Potential Intensity (PI). Perhaps the most well known PI formulation is the one developed by Ke...