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Agenda for Tuesday, May 22
Agenda for Wednesday, May 23
Poster Agenda

** Data may be preliminary and should not be quoted or distributed without first contacting the author **

2018 NOAA ESRL GLOBAL MONITORING ANNUAL CONFERENCE

David Skaggs Research Center, Room GC-402
325 Broadway, Boulder, Colorado 80305
May 22 and May 23, 2018

Tuesday, May 22, 2018 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
07:45 - 08:30 Morning Snacks - coffee, tea, fruit, bagels and donuts served
Session 1 Welcome, Keynote Address & Highlights — Chaired by James H. Butler Slides
08:30 - 08:45 Welcome and Setting the Stage

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

08:45 - 09:00 Where GMD Fits in the Big Picture

Ko Barrett (NOAA Office of Oceanic and Atmospheric Research (OAR), Silver Spring, MD)

09:00 - 09:45 KEYNOTE ADDRESS - Science for Policy and Policy for Science in the Federal Government

John P. Holdren (Harvard University, John F. Kennedy School of Government, Cambridge, MA)

9:45 - 10:15 Morning Break & Group Photo on the Stage
Session 2 Tracking Greenhouse Gases and Understanding Carbon Cycle Feedbacks - Global Constraints on the Carbon Cycle — Chaired by Gabrielle Petron Slides
10:15 - 10:30 The Primacy of Observations in Climate Prediction

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

10:30 - 10:45 Constraints on Global Carbon and Heat Exchanges from Measurements of Atmospheric O2 and Related Tracers

Ralph Keeling (Scripps Institution of Oceanography, University of California at San Diego, La Jolla, CA)

10:45 - 11:00 Monitoring Trends and Spatial Distributions of Carbon Cycle Greenhouse Gases and Related Tracers

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

11:00 - 11:15 The OCO-2 Model Intercomparison Project Reveals Systematic Transport Model Effects on Inverse Model CO2 Fluxes

Andrew R. Jacobson (Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder, CO)

11:15 - 11:30 CarbonTracker Asia 2016: an Estimation of CO2 Fluxes Centering on Asia

Jae-Sang Rhee (National Institute of Meteorological Sciences, Seogwipo-si, Jeju-do, South Korea)

11:30 - 11:45 The Mysterious Global Methane Budget

Lori Bruhwiler (NOAA Earth System Research Laboratory, Global Monitoring Division (GMD), Boulder, CO)

11:45 - 13:00 Catered Lunch - Outreach Classroom GB-124 (pre-payment of $12.00 at registration)
Session 3 Monitoring and Understanding Changes in Surface Radiation, Clouds, and Aerosol Distributions — Chaired by Allison McComiskey Slides
13:00 - 13:15 The Scientific Utility of GMD Surface Radiation Measurements

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

13:15 - 13:30 Trends in U.S. Surface Radiation and Aerosol Optical Depth over the Past 20 Years

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

13:30 - 13:45 Climatology of Aerosol Optical Properties from Storm Peak Laboratory

Gannet Hallar (University of Utah, Salt Lake City, UT)

13:45 - 14:00 On Measurements and Spatial Distribution of Light Absorbing Aerosols in the Arctic

John Backman (Finnish Meteorological Institute, Helsiniki, Finland)

14:00 - 14:15 Winter 2017-2018 Results from the De-Icing Comparison Experiment (D-ICE) at NOAA’s Barrow Atmospheric Baseline Observatory, Utqiaġvik, Alaska

Sara M. Morris (Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder, CO)

14:15 - 14:30 The Role of Atmospheric Circulation in the Seasonal Melt of Snow and Sea Ice in the Pacific Arctic

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

14:30 - 15:00 Afternoon Break
Session 4 Guiding Recovery of Stratospheric Ozone - Ozone and Ozone Depleting Gases in the Stratosphere — Chaired by Dale Hurst Slides
15:00 - 15:15 Increasing CFC-11 Emissions and other Unusual Atmospheric Changes: How Delayed Will Ozone Recovery Be?

Steve Montzka (NOAA Earth System Research Laboratory, Global Monitoring Division (GMD), Boulder, CO)

15:15 - 15:30 Diagnosing CFC-11’s Emissions in a Chemistry-Climate Model

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

15:30 - 15:45 Ozone and Chemical Composition in the Pacific Region Measured by IAGOS

Hannah Clark (IAGOS-AISBL, Brussels, Belgium)

15:45 - 16:00 Global Observations of Aerosol and Ozone from SAGE III ISS – A First Year Showcase

Kevin R. Leavor (Science Systems and Applications, Inc. (SSAI), Lanham, MD)

16:00 - 16:15 South Pole Ozonesondes in 2017 Continue to Show Less Severe Ozone Loss

Bryan Johnson (NOAA Earth System Research Laboratory, Global Monitoring Division (GMD), Boulder, CO)

16:15 - 16:30 Is Stratospheric Ozone Recovering as We Expect? Results of the SPARC LOTUS Analyses

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

16:30 - 16:45 The Trials and Triumphs of SHADOZ: The Who’s Who of Tropical Ozone Profiles

Jacquelyn C. Witte (Science Systems and Applications, Inc. (SSAI), Lanham, MD)

17:00 - 19:30 Poster Session (DSRC Cafeteria) with appetizers and refreshments

Wednesday, May 23, 2018 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 collected at registration table
07:45 - 08:30 Morning Snacks - coffee, tea, fruit, bagels and donuts served
Session 5 Tracking Greenhouse Gases and Understanding Carbon Cycle Feedbacks - Regional Carbon Cycle Feedbacks and Observations — Chaired by Colm Sweeney Slides
08:30 - 09:00 Response of North American Terrestrial CO2 Fluxes to Climate Variability

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

09:00 - 09:15 Arctic-CAP: Northern High Latitude CO2, CH4, and CO Airborne Vertical Profile Surveys during the Arctic-Boreal Vulnerability Experiment (ABoVE)

Charles Miller (NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA)

09:15 - 09:30 ICOS Research Infrastructure, Progress in the European Carbon Cycle and Greenhouse Gas Observing Network

Alex Vermeulen (Integrated Carbon Observation System (ICOS) European Research Infrastructure Consortium (ERIC), Carbon Portal, Lund, Sweden)

09:30 - 09:45 Single-blind Testing of a Regional, Continuous Monitoring System for Finding Methane Leaks from Oil and Gas Operations

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

9:45 - 10:15 Morning Break
Session 6 Tracking Greenhouse Gases and Understanding Carbon Cycle Feedbacks - Urban/Regional Emissions — Chaired by Arlyn Andrews Slides
10:15 - 10:30 Unexpected and Significant Biospheric CO2 Fluxes in the Los Angeles Basin Indicated by Atmospheric Radiocarbon

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

10:30 - 10:45 Development of an Open-path, Laser Dispersion Spectroscopy (LDS) Analyzer for Methane Emissions Mapping and Quantification

Graham Leggett (MIRICO Ltd., Chilton, United Kingdom)

10:45 - 11:00 Little Evidence for Significant Increases in Total U.S. CH4 Emissions over the Past Decade

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

11:00 - 11:15 A Multi-species Analysis of Carbon Enhancements during the ACT-America Campaign

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

11:15 - 11:30 How Much Can Atmospheric Data Tell Us About the North American Land Sink?

Sha Feng (Department of Meteorology and Atmospheric Science, The Pennsylvania State University, University Park, PA)

11:30 - 11:45 Detecting Trends in Fossil Fuel CO2 Emissions from Atmospheric Measurements of CO2 and 14CO2

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

11:45 - 13:00 Catered Lunch - Outreach Classroom GB-124 (pre-payment of $12.00 at registration)
Session 7 Monitoring and Understanding Changes in Surface Radiation, Clouds, and Aerosol Distributions — Chaired by Patrick Sheridan Slides
13:00 - 13:15 Use of Radiation and Cloud Observations in Model Diagnosis/Development to Reduce Cloud-Radiation Model Errors from 4-hour to 4-week Forecasts

Stan Benjamin (NOAA Earth System Research Laboratory, Global Systems Division (GSD), Boulder, CO)

13:15 - 13:30 Variability of Surface Radiation Observations and HRRR Forecasts at Sites across the Columbia River Basin as Part of the Wind Forecasting Improvement Project (WFIP-2)

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

13:30 - 13:45 Comparison of Aerosol Optical Properties from In Situ Surface Measurements and Model Simulations

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

13:45 - 14:00 Synthesis of Aerosol Physical, Chemical, and Radiative Properties from Various Sources: Consistency and Closure

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

14:00 - 14:15 Reducing Uncertainty in Aerosol Direct Radiative Effect Through Synergistic Use of Long-term Satellite and Ground-based Measurements

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

14:15 - 14:30 Measurements of Aerosol Absorption during Ultra-light Global Circumnavigation, Arctic and Mediterranean Campaigns

Grisa Mocnik (Jozef Stefan Institute, Ljubljana, Slovenia)

14:30 - 15:00 Afternoon Break
Session 8 Cross-cutting Topics - Water Vapor, Tropospheric Ozone, and Other Measurements — Chaired by Irina Petropavlovskikh Slides
15:00 - 15:15 An Overview of GMD’s Water Vapor Research

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

15:15 - 15:30 Local Measurements, Global Studies: The Utility of Balloon-borne Frost Point Hygrometer Measurements for Studying Global Stratospheric Water Vapor

Sean M. Davis (Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder, CO)

15:30 - 15:45 Tropospheric Column Ozone Variability from Space: Results from the First Multi-instrument Intercomparison

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

15:45 - 16:00 Tropospheric Ozone Assessment Report: Tropospheric Ozone Observations – How Well Do We Know Tropospheric Ozone Changes?

David W. Tarasick (Environment and Climate Change Canada, Toronto, Ontario, Canada)

16:00 - 16:15 An Overview of the Fires, Asian, and Stratospheric Transport-Las Vegas Ozone Study (FAST-LVOS)

Andrew O. Langford (NOAA Earth System Research Laboratory, Chemical Sciences Division (CSD), Boulder, CO)

16:15 - 16:30 Preliminary Results from GMD’s Halocarbons and other Trace Gases Measurements on ATom

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

16:30 - 16:45 Ambient Air Measurements of Formaldehyde by Near-infrared Cavity Ring-down Spectroscopy

David Kim-Hak (Picarro Inc., Santa Clara, CA)

16:45 Closing Remarks - Dr. James Butler, Director (NOAA/ESRL Global Monitoring Division)

Tuesday, May 22, 2018 Poster Session Agenda

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

2018 GMAC and GMD Review Joint Session Poster
P-0 Evaluating the Impact of Baseline Ozone in California using Ozone-Sonde Measurements at Trinidad Head, CA (THD): Overview

Toshihiro Kuwayama (California Air Resources Board, Sacramento, CA)

P-1 Global Atmosphere Watch Programme: the Role of the National Programmes in Supporting the Global Value Chain

Oksana Tarasova (World Meteorological Organisation, Geneva, Switzerland)

P-2 The Radon Measurement Programs at Cape Grim, Mauna Loa, and other Global Atmospheric Monitoring Sites

Alastair G. Williams (Australian Nuclear Science and Technology Organisation (ANSTO), Lucas Heights, Australia)

P-3 NOAA and U.S. Department of Energy/Office of Science Cooperative Efforts in Barrow (Utqiaġvik), Alaska

Mark Ivey (Sandia National Laboratories, Albuquerque, NM)

P-4 Ozone, Aerosols and Carbon Gases at the Mt. Bachelor Observatory

James Laing (University of Washington, Seattle, WA)

P-5 Black Carbon Mass Observations across Canada (2006-2015): Constraining on Regional Emissions in North America  

Lin Huang (Environment and Climate Change Canada, Toronto, Ontario, Canada)

P-6 Aerosol Hygroscopicity during the Haze Red Alert Period in Winter 2016 at a Rural Site of the North China

Junying Sun (Chinese Academy of Meteorological Sciences, Key Laboratory of Atmospheric Chemistry of CMA, Beijing, China)

P-7 Using SURFRAD Aerosol Optical Depth Measurements for Model Evaluation. A Study with FV3-GOCART and WRF-Chem and Their Assimilation Systems

Mariusz Pagowski (NOAA Earth System Research Laboratory, Global Systems Division (GSD), Boulder, CO)

P-8 Ratios of Greenhouse Gas Emissions Observed over the Yellow Sea and the East China Sea

Lingxi Zhou (China Meteorological Administration, Chinese Academy of Meteorological Sciences, Beijing, China)

P-9 TCCON Updates and Improvements to Precision Requirements

Coleen Roehl (California Institute of Technology, Pasadena, CA)

P-10 Engaging Agencies and the Public in Atmospheric Monitoring Observations Through Real-time Data Posting

Detlev Helmig (Institute of Arctic and Alpine Research (INSTAAR), University of Colorado, Boulder, CO)

P-11 The Importance of Ozonesonde Quality Assurance and JOSIE-SHADOZ (2017)

Jacquelyn C. Witte (Science Systems and Applications, Inc. (SSAI), Lanham, MD)

P-12 The Evolving Role of Space-based Measurements in a Global Carbon Monitoring System

Charles Miller (NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA)

Tracking Greenhouse Gases and Understanding Carbon Cycle Feedbacks Poster
P-13 AirCore: The Gold Standard for Comparing Remote Sensing Observations to the Ground Network and the Capturing Changes in Stratospheric Circulation Changes

Colm Sweeney (NOAA Earth System Research Laboratory, Global Monitoring Division (GMD), Boulder, CO)

P-14 Monitoring of Atmospheric Acetylene in the NOAA Global Greenhouse Gas Reference Network

Jacques Hueber (Institute of Arctic and Alpine Research (INSTAAR), University of Colorado, Boulder, CO)

P-15 Atmospheric Isoprene in the NOAA/INSTAAR Global Greenhouse Gas Reference Network

Jacques Hueber (Institute of Arctic and Alpine Research (INSTAAR), University of Colorado, Boulder, CO)

P-16 Spatial and Temporal Gradients in Atmospheric CO2 and CO in the Los Angeles Megacity

Kristal R. Verhulst (NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA)

P-17 Investigating Hydrocarbon Tracers for Anthropogenic CO2 at Indianapolis, IN

Isaac Vimont (National Research Council Post-Doc, Boulder, CO)

P-18 Estimating Uncertainties of GC/MS Analyses of Programmable Flask Package (PFP) Atmospheric Samples from the GGGRN North American Tower and Aircraft Programs

Benjamin R. Miller (Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder, CO)

P-19 Untangling Greenhouse Gas Fluxes and Transport using ACT-America Observations

Sha Feng (Department of Meteorology and Atmospheric Science, The Pennsylvania State University, University Park, PA)

P-20 Recent Developments in Using Isotopic Measurements for Constraining Methane Sources and Sinks

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

P-21 Recent GAW Activities of KMA

Yuwon Kim (Korea Meteorological Administration, Daebang-dong, Dongjak District, Seoul, Republic of Korea)

P-22 Systematic Differences in Global CO2 Inverse Model Results

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

P-23 Methane Leak Detection and Sizing using Large Eddy Simulations (LES)

Kuldeep Prasad (National Institute of Standards and Technology (NIST), Gaithersburg, MD)

P-24 Development of ECCC’s Regional Transport Model for Simulation of Atmospheric Greenhouse Gases at High Spatial and Temporal Resolution

Jinwoong Kim (Environment and Climate Change Canada, Toronto, Ontario, Canada)

P-25 Constraining Carbon 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)

P-26 A Reanalysis of Inter-laboratory Comparisons as the Stable Isotope Lab at INSTAAR Switches to the JRAS-06 Realization of the VPDB Scale

Sylvia Englund Michel (Institute of Arctic and Alpine Research (INSTAAR), University of Colorado, Boulder, CO)

P-27 An Update on the WMO CO X2014A Scale

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

P-28 Successes and Challenges of Spectroscopic Based Techniques in Enteric Methane Measurements

Wilson Gichuhi (Department of Chemistry, Tennessee Tech University, Cookeville, TN)

P-29 Open-path Spectroscopy to an Airborne Retroreflector on a Quadcopter

Kevin Cossel (National Institute of Standards and Technology (NIST), Boulder, CO)

P-30 Performance Validation of New High-precision CH4 and CO2 Analyzers Based on Optical Feedback Cavity Enhanced Absorption Spectroscopy

Israel Begashaw (LI-COR Biosciences, Lincoln, NE)

P-31 Estimation of Enteric Methane Emissions in Ruminants Using CO2:CH4 Ratio Obtained with a Wavelength-scanned Cavity Ring-down Spectrometer

Lahiru P Gamage (School of Environmental Studies, Tennessee Technological University, Cookeville, TN)

P-32 13C and 18O Isotope Effects Resulting from High Pressure Regulation and CO2 Cylinder Depletion

Matt C. Matthew (Airgas Specialty Gases, Plumsteadville, PA)

P-33 CO2 Urban Synthesis and Analysis ("CO2-USA") Network

Logan Mitchell (University of Utah, Salt Lake City, UT)

P-34 Investigating Methane Trends and Variability Using the GFDL-AM4 Model and NOAA GMD Observations

Jian He (Program in Atmospheric and Oceanic Sciences, Princeton University, Princeton, NJ)

P-36 Characterizing and Comparing Anthropogenic CH4 Sources in the DJ Basin using Mobile Surveys

Chelsea Fougere (St. Francis Xavier University, Antigonish, Nova Scotia, Canada)

P-37 Effects of Drought Conditions on CO2 Flux in Semi-arid Chaparral Ecosystems.

Andrea Fenner (San Diego State University, Global Change Research Group, San Diego, CA)

P-38 Sources and Variability of Air Toxics Downwind of an Oil and Natural Gas-producing Well Pad in a Residential Community

Ingrid Mielke-Maday (Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder, CO)

P-39 Ground-truth Calibration for the VIIRS Nightfire Detector of Gas Flares

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

Monitoring and Understanding Changes in Surface Radiation, Clouds, and Aerosol Distributions Poster
P-40 Volcanic Aerosol Optical Depths during the Post-Pinatubo Era, 1996-2018

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

P-41 Use of Ground- and Space-based Visible Imagery with other Data for Model Evaluation and Assimilation

Steve Albers (Cooperative Institute for Research in the Atmosphere (CIRA), Colorado State University, Fort Collins, CO)

P-42 Constraining Aerosol Properties with Ground-based Lidar and other Remote Sensing Techniques

John E. Barnes (Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder, CO)

P-43 Cloud Measurements with an All-sky Camera System for Investigating Long-term Variability of Cloud Properties at South Pole

Masataka Shiobara (National Institute of Polar Research (NIPR), Tokyo, Japan)

P-44 Mutual Information Analysis of Aerosol-cloud interactions by Meteorological State over Oklahoma, U.S.

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

P-45 Black Carbon’s Contribution to Aerosol Absorption Optical Depth in South Korea

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

P-46 NOAA Global Radiation Group Participation in International Comparisons Offering Traceable Calibration to World Solar Radiation Standards

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

P-47 Variability of UV at Sites Equipped with NIWA Spectrometer Systems for 20 Years or More

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

P-48 Improvements in the Brewer Mark IV Spectrophotometer Ultraviolet AOD Retrievals

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

P-49 Shipboard Tilt Corrections for More Accurate Broadband Radiation Data

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

P-50 Validation of the Stratospheric Aerosol and Gas Experiment-III (SAGE-III) Aerosol Data Product

Travis N. Knepp (Science Systems and Applications, Inc. (SSAI), Lanham, MD)

P-51 Validation of the Stratospheric Aerosol and Gas Experiment III on the International Space Station (SAGE III/ISS) Science Data Ozone Product: Preliminary Results

Susan Kizer (Science Systems and Applications, Inc. (SSAI), Lanham, MD)

P-52 Overview and Selected Results from the NOAA Federated Aerosol Network

Patrick Sheridan (NOAA Earth System Research Laboratory, Global Monitoring Division (GMD), Boulder, CO)

P-53 Relating Chemical and Optical Aerosol Properties at Mauna Loa Observatory

Katy Sun (Science and Technology Corporation, Boulder, CO)

P-54 Reconciling Evapotranspiration Partitioning Models with Evidence of Anomalously Low Isotopic Fractionation during Evaporation in Semi-arid Landscapes

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

P-55 Spatial Variations of Soil Temperature and its Environmental Controls across Eurasian Continent

Kang Wang (Institute of Arctic and Alpine Research (INSTAAR), University of Colorado, Boulder, CO)

Guiding Recovery of Stratospheric Ozone and Other Topics Poster
P-56 A Lamina-based Approach for Interpreting Variability in Ozonesonde Vertical Profiles

Ken Minschwaner (New Mexico Institute of Mining and Technology, Socorro, NM)

P-57 Analysis of Ozone Trends from NOAA's Newly Homogenized Ozonesonde Data Record

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

P-58 Stratospheric Temperature Corrections and Improvement of Total Column Ozone Records in the NOAA Dobson Ozone Spectrophotometer Network

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

P-59 Uncertainty Improvement Optimized using the GMI Model for Umkehr Ozone Profile Retrieval

Koji Miyagawa (Guest Scientist at NOAA Earth System Research Laboratory, Global Monitoring Division (GMD), Boulder, CO)

P-60 An Evaluation of C1-C3 Hydrochlorofluorocarbon (HCFC) Metrics: Lifetimes, Ozone Depletion Potentials, Radiative Efficiencies, Global Warming and Global Temperature Potentials

James Burkholder (NOAA Earth System Research Laboratory, Chemical Sciences Division (CSD), Boulder, CO)

P-61 Chloroform Emissions Estimated with the CarbonTracker-Lagrange North American Regional Inversion Framework

Geoff Dutton (NOAA Earth System Research Laboratory, Global Monitoring Division (GMD), Boulder, CO)

P-62 Using Observations of SF6 to Examine Inter-annual Variations in Inter-hemispheric Exchange

Brad D. Hall (NOAA Earth System Research Laboratory, Global Monitoring Division (GMD), Boulder, CO)

P-63 Increased Propane Emissions from the United States over the Last Decade

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

P-64 Using Carbonyl Sulfide to Explore Coastal Fog and Coast Redwood Interdependence

Timothy W. Hilton (University of California at Merced, Merced, CA)

P-65 NOx Emissions from Switch Yard Locomotives Observed with the TRAX Air Quality Platform

Logan Mitchell (University of Utah, Salt Lake City, UT)

P-66 Advantages and Limitations of Measuring BTEX with a Commercial GC-PID System In Situ

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

P-67 One Year of AOD, Halogen Radicals, OVOCs, H2O and NO2 Measurements at Mauna Loa Observatory

Barbara Dix (University of Colorado, Department of Chemistry and Biochemistry, Boulder, CO)

P-68 Toward a High Degree of Freedom Full Atmosphere Retrieval of BrO Profiles from MAX-DOAS Instruments on Remote Tropical Marine Mountaintops

Theodore Koenig (University of Colorado, Department of Chemistry and Biochemistry, Boulder, CO)

P-69 Contrasting Behavior of Inert and Photochemically Reactive Gases during the August 21, 2017, Solar Eclipse at the Boulder Reservoir

Detlev Helmig (Institute of Arctic and Alpine Research (INSTAAR), University of Colorado, Boulder, CO)

P-70 Combining Observations and Multiple Models for an Improved Estimate of the Global Surface Ozone Distribution

Kai-Lan Chang (National Research Council Post-Doc, Boulder, CO)

P-71 Changing Conditions in the Arctic: An Analysis of Trends in Observed Surface Ozone Conditions

Audra McClure-Begley (Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder, CO)

Technology Poster
P-72 Online Inclusion of Chemical Modules Into NOAA’s Next Generation Global Prediction System (NGGPS)

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

P-73 SOS ExplorerTM: Interactive Visualizations for Museums and Classrooms

Eric Hackathorn (NOAA Earth System Research Laboratory, Global Systems Division (GSD), Boulder, CO)