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Colloquia Fall 2015

Spring 2015 | Spring 2016

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] for more information.

Atmospheric Mercury from the Boundary Layer to the Free Troposphere: Airborne Observations of Emissions, Transport, and Chemistry

Lynne E. Gratz
December 11, 2015

Mercury (Hg) is a bioaccumulative neurotoxin that is emitted to the atmosphere from both natural and anthropogenic sources. Once in the atmosphere, chemistry and transport are fundamental in determining the introduction of Hg to terrestr...

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The Mid-Latitude Circulation Response to Global Warming and Implications for Regional Hydroclimate

Isla Simpson
December 4, 2015

A critical aspect of human-induced climate change is how it will affect regional hydroclimate around the world. To leading order, the increased ability of the atmosphere to hold moisture as it warms, intensifies moisture transports, mak...

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Orographic Convection and Precipitation in the Tropics: Wind Speed Control and Aerosol Interactions

Alison D. Nugent
December 3, 2015

The Dominica Experiment (DOMEX) took place in the eastern Caribbean in the spring of 2011 with 21 research flights of the University of Wyoming King Air (UWKA) aircraft. The goal was an improved understanding of the physics of convective...

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Stratospheric Water Vapor Processes and Trends from in situ Observations

Holger Vömel
November 20, 2015

Stratospheric water vapor plays an important role in global climate, stratospheric chemistry and polar ozone destruction. Observations of water vapor in the stratosphere and most importantly in the tropical tropopause region are importan...

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The Ubiquity of Seismology

Rick Aster
November 13, 2015

Increased recognition of the deep value of continuous recordings of Earth's seismic wavefield has led to the discovery of a bestiary of new seismogenic processes as well as to the development of powerful new analysis methods. I will su...

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The impact of the permafrost carbon feedback on global climate

Kevin Schaefer
November 6, 2015

Permafrost is permanently frozen ground covering 24% of the northern hemisphere land surface and contains 1100 Gt of carbon in the form of frozen organic matter. Temperatures in the high northern latitudes are increasing twice as fast a...

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Efficiently Elucidating Emissions Influences on Aspects of Air Quality and Climate

Shannon Capps
October 30, 2015

Anthropogenic influence on the composition of the atmosphere has caused harm to human health, shifts in climate, and perturbations to ecosystems. Assessing the relative influence of specific sources on various air quality and climate en...

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Impacts of a better-resolved stratosphere on El Nino teleconnections

Jadwiga (Yaga) H. Richter
October 23, 2015

The effects of the tropical Pacific El Nino-Southern Oscillation (ENSO) phenomenon are communicated to the rest of the globe via atmospheric teleconnections. Traditionally, ENSO teleconnections have been viewed as tropospheric phenomena,...

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Radiative and Instability Forcing of Cloud-top Generating Cells in Winter Cyclones

Jason M. Keeler
October 16, 2015

Recent field observations from the Profiling of Winter Storms (PLOWS) campaign suggest that cloud-top precipitation generating cells (GCs) are ubiquitous in the warm-frontal and comma-head regions of midlatitude winter cyclones. The pres...

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The Psychology of Climate Change Communication: Motivations for Pro-Environmental Attitudes and Behaviors

Dr. Brittany Bloodhart
October 2, 2015

How do people think about environmental problems like climate change, and why do some people feel concerned or take action? Despite large consensus among the scientific community, many individuals deny that climate change is happening o...

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Air quality impacts of oil and natural gas extraction

Abigail Koss
September 25, 2015

Natural gas, crude oil, and natural gas liquids are major fuel sources in the US, and extraction of these resources has been rising substantially since the mid 2000's. This activity is associated with a range of possible environmental is...

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Climate Threats: A More Inclusive Assessment Is Needed

Roger A. Pielke, Sr.
September 11, 2015

The natural causes of global, regional, and local climate variations and changes are important, but the human influences are also significant. However, the Intergovernmental Panel on Climate Change (IPCC) and other climate assessments ha...

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CIRA Intro Jamboree

Don Hillger, John Knaff, Dan Lindsey, Steve Miller, Matt Rogers, Jenny Hand, Karina Apodaca
September 4, 2015

5–10 min intros by individual CIRA members.

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