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Tuesday, May 23, 2017 Agenda

(Only presenter's name is given; please refer to abstract for complete author listing.)
(Click on presentation title to view abstract.)

07:00 Registration Opens in GC-402 - lunch orders and posters collected at registration table
07:30 - 08:15 Morning Snacks - coffee, tea, fruit, bagels and donuts served
Session 1 Welcome, Keynote Address & Highlights — Chaired by Russell C. Schnell
08:15 - 08:30 Welcome and Conference Overview

James H. Butler (NOAA Earth System Research Laboratory, Global Monitoring Division (GMD), Boulder, CO)

08:30 - 09:00 Keynote Address - Climate, Melting Ice and Rising Seas: Observing and Understanding to Reduce Risks

Richard B. Alley (The Pennsylvania State University, Department of Geosciences, and Earth and Environmental Systems Institute, University Park, PA)

09:00 - 09:15 Highlighted Speaker - Implications of the Continued Increase in Atmospheric Methane Burden

Edward J. Dlugokencky (NOAA Earth System Research Laboratory, Global Monitoring Division (GMD), Boulder, CO)

09:15 - 09:30 Highlighted Speaker - Black Carbon Measurements at Cape Grim, Tasmania

Fabienne Reisen (Commonwealth Scientific and Industrial Research Organisation (CSIRO), Oceans and Atmosphere, Aspendale, Australia)

09:30 - 09:45 Highlighted Speaker - Ozone, Aerosol and Carbon Gases at the Mt. Bachelor Observatory

Dan Jaffe (University of Washington, Seattle, WA)

9:45 - 10:15 Morning Break & Group Photo on the Stage
Session 2 Carbon Cycle & Greenhouse Gases - Global Observations — Chaired by Stefan Schwietzke
10:15 - 10:30 How We Know That Human Activities Are Driving Climate Change

Pieter P. Tans (NOAA Earth System Research Laboratory, Global Monitoring Division (GMD), Boulder, CO)

10:30 - 10:45 Sources of Systematic Differences in Global CO2 Inverse Model Results

Benjamin Gaubert (National Center for Atmospheric Research (NCAR), Atmospheric Chemistry Observations and Modeling Laboratory, Boulder, CO)

10:45 - 11:00 10 Years of Observation for Greenhouse Gases by Commercial Airlines in the CONTRAIL Project

Yousuke Sawa (Meteorological Research Institute, Tsukuba, Japan)

11:00 - 11:15 Nitrous Oxide Emissions Estimated with the Carbon Tracker-Lagrange North American Regional Inversion Framework

Cynthia Nevison (Institute of Arctic and Alpine Research (INSTAAR), University of Colorado, Boulder, CO)

11:15 - 11:30 Vertical Gradients in Atmospheric CO2 as a Constraint on Southern Ocean Fluxes

Kathryn McKain (Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder, CO)

11:30 - 11:45 Toward Improvement on Estimation of North American CO2 Fluxes from CarbonTracker-Lagrange: A High-Resolution Regional Inverse Modeling System for Assimilating Atmospheric CO2

Lei Hu (Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder, CO)

11:45 - 12:00 Multi-species Atmospheric Inversion of Sectoral Greenhouse Gas Emissions in the Indianapolis Urban Environment

Brian Nathan (The Pennsylvania State University, Department of Meteorology, University Park, PA)

12:00 - 13:00 Catered Lunch - Outreach Classroom GB-124 (pre-payment of $12.00 at registration)
Session 3 Global Radiation — Chaired by Allison McComiskey
13:00 - 13:15 Surface Energy Budget Process Relationships as a Means for Evaluating Model Performance in Central Greenland

Matthew Shupe (Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder, CO)

13:15 - 13:30 Drivers and Environmental Responses to the Changing Annual Snow Cycle of Northern Alaska

Christopher J. Cox (Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder, CO)

13:30 - 13:45 Arctic Heat Waves: Towards Quantifying the Role of Atmospheric Dynamics

Robert S. Stone (Science and Technology Corporation, Boulder, CO)

13:45 - 14:00 Changing Air Quality in the Southeast U.S. and Potential Implications for Regional Solar Radiation Budget

James Patrick Sherman (Appalachian State University, Department of Physics and Astronomy, Boone, NC)

14:00 - 14:15 Surface-measured Trends of Aerosol Optical Depth as an Indicator of Stratospheric Aerosol Trends

John Augustine (NOAA Earth System Research Laboratory, Global Monitoring Division (GMD), Boulder, CO)

14:15 - 14:30 The Hazy Space between Cloud and Aerosol

Chuck Long (Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder, CO)

14:30 - 14:45 Two Centuries of Volcanic Aerosols Derived from Lunar Eclipse Records, 1805-2015

Richard A. Keen (University of Colorado, Emeritus, Department of Atmospheric and Oceanic Sciences, Boulder, CO)

14:45 - 15:15 Afternoon Break
Session 4 Carbon Cycle & Greenhouse Gases - Isotopes — Chaired by Arlyn Andrews
15:15 - 15:30 Detecting Trends in Fossil Fuel Emissions with 14CO2 in the Presence of Transport Errors and Biased Inventories

Sourish Basu (Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder, CO)

15:30 - 15:45 Optical Detection of Radiocarbon (14C) Below Modern Levels by Cavity Ring-down Spectroscopy

Adam J. Fleisher (National Institute of Standards and Technology (NIST), Gaithersburg, MD)

15:45 - 16:00 Unexpected and Significant Biospheric CO2 Fluxes in the Los Angeles Basin Indicated by Atmospheric Radiocarbon (14CO2)

John B. Miller (NOAA Earth System Research Laboratory, Global Monitoring Division (GMD), Boulder, CO)

16:00 - 16:15 Constraining Biospheric Exchange Processes over North America by Joint Assimilation of Atmospheric CO2 and δ13C

Ivar R. van der Velde (Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder, CO)

16:15 - 16:30 Gaseous Reference Materials to Underpin Measurements of Amount Fraction and Isotopic Composition of Greenhouse Gases

Paul Brewer (National Physical Laboratory, Teddington, Middlesex, United Kingdom)

16:30 - 16:45 Calibration Strategies for FTIR and Other IRIS Instruments for Accurate δ13C and δ18O Measurements of CO2 in Air

Joële Viallon (Bureau International des Poids et Mesures (BIPM), Sèvres, France)

17:00 - 20:00 Poster Session (DSRC Cafeteria) with appetizers and refreshments