Please join us for the ATOC Colloquium, every other Friday in the conference room SEEL 303. Come early for coffee starting at 10:45 AM across the hall in SEEL 306, and lunch will be served after!

About the ATOC Colloquium

The Department of Atmospheric and Oceanic Sciences Colloquium will be held every other Friday from 11:00 AM-noon. Come early for coffee starting at 10:45 AM, and stay after for discussions as lunch is provided on site.

Colloquia will alternate between the following two formats:

A. Full-length talk by a faculty member or invited speaker

B. Three conference-length talks by graduate students or post-docs

If you would like to nominate a speaker (including yourself), please email the Chair of the ATOC Colloquium Committee, Prof. Jan Lenaerts.

Upcoming Schedule

Fall 2019

Date Format Room Speaker(s) Title & Abstract


A SEEL 303 Jeffrey Weiss (CU Boulder)

Climate oscillations and non-equilibrium physics

09/20/2019 B SEEC S372A/A

Matt Cann


Matt Gentry


Elina Valkonen

The Role of Moisture Pathways on Snowfall Amount and Distribution in the Southwest Central Mountains of Idaho

Considering the Influence of Clouds on Ocean Carbon Uptake

A Novel Intensity Metric for Arctic Cyclones – A Comparison with the more Traditional Metrics

10/04/2019 A SEEL 303 Cathy Smith (NOAA)  
10/18/2019 B SEEL 303

Nick Luchetti

Tessa Gorte

Abigail Smith

11/01/2019 A SEEL 303 Brooke Anderson (CSU)  
11/15/2019 B SEEL 303 Kristen Aponte / Carolyn Brinkworth (UCAR)


12/06/2019 - SEEC C120 ESSS Poster Conference


Spring 2020

Date Format Room Speaker(s) Title & Abstract


A SEEC S228 James Brasseur (ASEN/CU)  
02/07/2020 B SEEC S228

Connor Nelson

Hannah Zanowski

TBD (spot open)


02/28/2020 A SEEC S228 Gerald Meehl (NCAR)  
03/06/2020 A SEEC S228

Rochelle Worsnop (NOAA)

03/20/2020 B SEEC S228

Eleanor Middlemass

TBD (spot open)

TBD (spot open)

04/10/2020 A SEEC S228 TBD


04/24/2020 B SEEC S228

Ho-Hsuan Wei 

TBD (spot open)

TBD (spot open)


Past colloquia

Spring 2019

Date Format Room Speaker(s) Title & Abstract


A SEEC S228 (Sievers) Elizabeth Barnes (CSU) Causal pathways driving sub-seasonal jet-stream variability
02/07/2019 B SEEC S228 (Sievers) Nicola Bodini, Devon Dunmire, Jessica Tomaszewski

Towards a better understanding of turbulence dissipation rate (Bodini)

In situ and remote observations of a subsurface lake collapse in East Antarctica (Dunmire)

Quantifying wake impacts on downwind wind farms using the WRF Wind Farm Parameterization (Tomaszewski)

02/22/2019 A SEEC 372 A/B George Kiladis (NOAA) Skill and Impact of Tropical Variability in Two Operational  Weather Prediction Models
03/08/2019 A SEEC S228 (Sievers) Tristan L'Ecuyer (UW-Madison) PREFIRE: Filling a Startling Gap in Polar Climate Observation
03/22/2019 A SEEC S228 (Sievers) Karen Kosiba (CSWR)  43°N to 34°S: 77 degrees of weather
04/12/2019 B SEEC S228 (Sievers) Ren Smith, Kang Yang, Ryan Harp

The Role of Radiation in Tropical Cyclogenesis (Smith)

Northern Hemisphere Upper Troposphere “Dust Belt” from Improved CALIPSO Lidar Observations (Wang)

Projecting Future Temperature-Driven Changes in Crime (Harp)

04/26/2019 A SEEC S228 (Sievers) Brian O'Neill (University of Denver) Does half a degree of global warming matter? Results from the BRACE1.5 study


Fall 2018

Date Format Speaker(s) Title
09/07/2018 A* Cora Randall & Brian Toon (CU Boulder)

Clouds on the Edge of Space: Insight from the NASA Aeronomy of Ice in the Mesosphere (AIM) Mission (Randall)

The environmental impacts of nuclear war are far more damaging than the explosions and could kill 90% of the Earth's population (Toon)

09/21/2018 B Ariel Morrison, Jason West, Steffen Mauceri

Observed and Simulated Cloud Response to Arctic Sea Ice Loss from CALIPSO and CESM1 (Morrison)

The Role of Oceanic Processes in the Initiation of Indian Summer Monsoon Intraseasonal Oscillations over the Indian Ocean (West)

Aerosol Retrieval from Hyperspectral Imagery over India (Mauceri)

10/05/2018 A Nikki Lovenduski (CU Boulder)

A Change in the Forecast: Ocean Biogeochemistry over the Next Decade

10/19/2018 B Vineel Yettella, Bobby Wallace, Lynn Montgomery

An ensemble covariance framework for quantifying forced climate variability and its time of emergence (Yetella)

Hidden Water: Investigating a firn aquifer in Southeast Greenland (Montgomery)

Deep Hail Accumulations: How can we identify storms that produce the largest threat?  (Wallace)

11/02/2018 A Dan McGrath (CSU) How much is really out there? Forays into measuring snow accumulation on glaciers and implications for glacier mass balance


(Room change: SEEL303)

B Riley Brady, Guo Lin, Maaike Izeboud

On the role of climate modes in modulating the air-sea CO2 fluxes in Eastern Boundary Upwelling Systems (Brady)

Interactions Between a Nocturnal MCS and the Stable Boundary Layer, as Observed by an Airborne Compact Raman Lidar During PECAN (Lin)

Response of Greenland Ice Sheet firn to cloud radiative forcing (Izeboud)

11/30/2018   ESSS Poster Conference TBD

* The inaugural colloquium was given by two faculty members.