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Colloquia Fall 2013

Spring 2013 | Spring 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] for more information.

Intensification of Hurricane Sandy (2012) through Extratropical Warm Core Seclusion

Tom Galarneau
December 6, 2013

Hurricane Sandy's landfall along the New Jersey shoreline at 2330 UTC 29 October 2012 produced a catastrophic storm surge stretching from New Jersey to Rhode Island that contributed to damage in excess of $50 billion – the sixth costli...

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Imagining the future of Colorado's forests: beetles, wildfire, and people

Monique Rocca
November 22, 2013

Bark beetles and wildfires are natural components of Rocky Mountain forested landscapes. The increased incidence of drought in the coming decades will both make trees more susceptible to insect infestations and extend the length and seve...

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gZ+CpT+Lq and the MONSOON

T.N. Krishnamurti
November 20, 2013

Following Riehl and Malkus's pioneering work on the Heat budgets of the Equatorial trough, Riehl's studies on heat budget of the Bahama Circle and his work on Hurricane Daisy of 1958 this work examines a major role for the recent enhance...

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New Insights on the MJO from DYNAMO

Richard Johnson
November 18, 2013

The Madden-Julian Oscillation (MJO) has profound impacts on weather and climate worldwide, yet the basic dynamics of this oscillation are still not well understood. In addition, many forecast models have a difficult time predicting the M...

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Predictability and data assimilation of severe weather and tropical cyclones

Fuqing Zhang
November 8, 2013

Despite rapid advances in numerical weather prediction (NWP) models and ever increasing computational capability, our ability to accurately predict various severe weather phenomena in the short range and at the mesoscales remains limited...

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Characterizing the Emissions of Volatile Organic Compounds (VOCs) From Oil and Natural Gas Operations in Several U.S. Shale Basins

Jessica B. Gilman
November 1, 2013

Important Note: ALL Seminar attendees agree not to cite, quote, copy, or distribute material presented without the explicit written consent of the seminar presenter. Any opinions expressed in this seminar are those of the spea...

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Two perspectives on meteorological history: Academic family trees and Fujiwhara-enhanced U.S. TC landfall

Robert Hart
October 25, 2013

As part of the American Meteorological Society's 30th Conference on Hurricanes and Tropical Meteorology in Ponte Vedra Beach, Florida, in April 2012, an academic lineage ("family tree") of that community was presented to document the his...

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GNSS Remote Sensing From Orbit: UK-DMC To CYGNSS

Dr. Scott Gleason, Southwest Research Institute
October 18, 2013

This presentation will give an overview of space based GNSS reflectometry from the first signals
received on orbit to preparations for the CYGNSS constellation, scheduled for launch in 2016. The
history of the technology from satellite...

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Using data sets to constrain aerosol sources and radiative forcing: from micro to macro

Daniel Murphy
October 18, 2013

Aerosol radiative forcing is the difference between the radiative effect of aerosols now and during pre-industrial times. Calculating that difference requires understanding the sources of the particles. I will present how data sets as di...

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Why does SST in the equatorial Pacific cold tongue exhibit a seasonal cycle when the atmosphere heats the ocean year round?

Jim Moum
October 11, 2013

Sea surface temperature (SST) is a critical control on the atmosphere, and numerical models of atmosphere–ocean circulation emphasize its accurate prediction. Yet many models demonstrate large, systematic biases in simulated SST in the...

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An early look at the historic September 2013 heavy rainfall and flooding in Northern Colorado

members of the CSU/ATS and CIRA community
September 27, 2013

From 9-16 September 2013, extremely heavy rain fell over a large portion of northern Colorado, and especially in Boulder and Larimer Counties. This resulted in deadly and destructive flash flooding in many creeks and rivers in the foothi...

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An Overview of SoWMEX/TiMREX

Prof. Ben Jong-Dao Jou
September 17, 2013

Interaction of southwesterly wind surges over South China Sea and the steep terrain of Taiwan during the Meiyu (May and June) period of the East Asian summer monsoon often produce severe heavy rainfall and flash floods. The Southwest Mon...

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My Personal Journey of Aerosol-Cloud-Precipitation Interactions

Toshihisa Matsui
September 6, 2013

This seminar will provide a discussion in the aerosol-cloud-precipitation interactions through reviewing my past and current works using satellite observations and high-resolution modeling. Topics will cover from an aerosol-marine low c...

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A tale of two chemicals: N2O and HFCs and their potential inclusion in the Montreal Protocol

A.R. Ravishankara
August 8, 2013

A.R. Ravishankara
Chemical Sciences Division
Earth System Research Laboratory
NOAA, Boulder, CO

The role of nitrous oxide in the depletion of the ozone layer is well documented. Its efficiency changes in a changing climate and co...

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