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TexAQS II Field Study: Archived Presentations

Archived presentation files from workshops, seminars and conferences related to the TexAQS Field Study.

Principal Findings, Data Analysis Workshop—TexAQS II / GoMACCS 2006

TexAQS II participants held a workshop at the J.J. Pickle Research Campus, Austin, on May 29–June 1, 2007 to discuss the principal findings from data collected and analyzed during the TexAQS II field study, including questions related to Rapid Science Synthesis. Files linked from this page are in Portable Document Format (PDF). (Help with PDF.)

Title Author(s)
May 29 (8:30 a.m.–10:00 a.m.): Surface Networks, Ozone Regional Transport Network, VOC, NOx
Surface Networks, Ozone Regional Transport Network
Dave Allen
How "Representative" Was Summer 2006?: Regional O3 Trends in Texas Dave Sullivan
Overview of Analyses and Findings from the Rural Monitoring Network during TexAQS II Mariana Dionisio
Satellite Based Characterization of Influences of Agricultural and Wildfires on Continental U.S. O3 and CO Transport during TexAQS II Brad Pierce
May 29 (10:30 a.m.–12:15 p.m.): Meteorological Analysis and Profiles, Ozonesondes
Verification of Ozone Forecast Modeling during TexAQS II Bryan Lambeth
The Representativeness of Ozone Meteorology during TexAQS II John Nielsen-Gammon
Analysis of Houston & SE Texas Ozonesonde Data Gary Morris
An Insight into the Vertical Structure of the Atmosphere during TexAQS II: Effects of the Upper-Level Meteorology on Houston's Surface Ozone Levels during TexAQS II Ryan Perna
Peak Ozone Concentrations on High and Low Wind Days Within and Outside of the Surface Measurement Network Bob Banta
Surface Fluxes and Boundary Layer Structure over Galveston Bay, the Gulf of Mexico, and the Houston Area Wayne Angevine
May 29 (1:30 p.m.–4 p.m.): Moody Tower, Houston Triangle, SOF, and Baylor Aztec
Marine Boundary Layer Dynamics and Heights during TexAQS II: HRDL Measurements from the RV Brown Sara Tucker
Session Overview MT-SOF-Baylor Bernhard Rappenglueck
Moody Tower Measurements—Overview Bernhard Rappenglueck
Solar Occultation Flux (SOF) Measurements during TexAQS II Johan Mellqvist
Overview of Baylor University Airborne Measurements during TexAQS II Martin Buhr
May 30 (8:30 a.m.–10:10 a.m.): NOAA WP-3D, R/V Ronald H. Brown, NOAA Lidar Aircraft
Impact of Emissions from Commercial Shipping during TexAQS II Eric Williams
Observational Evaluation of Mobile Source Emissions Greg Frost
Measurements of Highly Reactive VOCs Onboard the NOAA WP-3D Joost de Gouw
Volatile Organic Compounds (VOCs) Measured Aboard the Ronald H. Brown during TexAQS II Jessica Gilman
May 30 (10:10 a.m.–10:30 a.m.): Ozone and Precursor Chemistry
Volatile Organic Compounds (VOCs) Measured from the NOAA WP-3D: (1) Determination of Isoprene Emissions and Comparison with Inventories, and (2) Distinction Between Urban and Industrial Sources of VOCs Carsten Warneke
Rapid and Efficient Production of Ozone over Houston, October 6, 2006: A Case Study Michael Trainer
Ozone Production Efficiency in Plumes Downwind from Houston Andy Neuman
Formaldehyde Measurements from R/V Brown during TexAQS II Scott Herndon
A Summary of Mixing Heights and Three-Dimensional Ozone Structure Observed during TexAQS II Mike Hardesty
May 30 (1:40 p.m.–3 p.m.): Ozone and Precursor Chemistry
Ozone Production and Flux Downwind of Houston and Dallas Christoph Senff
Pollution Transport and Texas Tom Ryerson
Observations of Nitryl Chloride, ClNO2, a Significant Chlorine Atom Source in the Houston-Galveston Region Jim Roberts
Nocturnal Processing of NOx, O3, and VOC Aloft over Houston Steve Brown
May 30 (3 p.m.–4:10 p.m.): Aerosol Composition and Properties
Boundary Layer Aerosol Chemistry during TexAQS II / GoMACCS 2006 Tim Bates
Sources of Primary and Secondary Particles in the Houston Area in 2006 Chuck Brock
Sources of High Aerosol Mass Loadings during the TexAQS II / GoMACCS Study Ann Middlebrook
May 31 (8:30 a.m.–10 a.m.): Satellite Observations and the NASA King Air
TES Observations during Texas Air Quality Study II Greg Osterman
Transport of CO and O3 into the TexAQS II Region as Observed by the Atmospheric InfraRed Sounder (AIRS) Wallace McMillan
MISR Observations of Houston Aerosol Pollution and Aerosol-Cloud Interaction Processes Mike Garay
Synthesis of NASA King Air, MODIS, and CALIPSO Aerosol Observations during TexAQS II Brad Pierce
May 31 (10:30 a.m.–12:10 p.m.): Regional Haze, Particulate Matter, Aerosol Composition and Properties
Source Apportionment for PM2.5 at Houston Clinton Dr. Dave Sullivan
Comparison of Speciated PM2.5 Measurements in 2006 Versus 2002–2005 Bryan Lambeth
Processing a Model-Ready Emissions Inventory for Primary PM Heather Simon
Cloud Condensation Nuclei Closure during the Texas Air Quality Study of 2006 Thanos Nenes
"Light Absorbing Carbon" Detailed Measurements from Houston Shipping Daniel Lack
May 31 (1:30 p.m.–4:10 p.m.): Modeling
Modeling and Measurements of Biogenic Isoprene in Southeast Texas Mark Estes
An Evaluation of NMM-CMAQ and WRF-Chem during High Ozone Episodes in TexAQS II James Wilczak
East Texas Air Quality Forecasting Systems (ETAQ-F) Evaluation of Summer 2006 Simulations for TexAQS II Daewon Byun
Comparison of Air Quality Forecast Model Predictions with WP-3 Data during TexAQS II Stu McKeen
Impacts of Background Ozone Production on Houston and Dallas, Texas Air Quality during the NOAA 2006 TexAQS Field Mission Bradley Pierce
Sensitivity of the 2006 TexAQS Air Quality Simulations to Model Inputs: ICs, BCs, Emissions, and Meteorology Daewon Byun
Examining the 2006 Hourly VOC Emission Inventory John Jolly
June 1 (8:15 a.m.–12:45 p.m.): Rapid Science Synthesis
Rapid Science Synthesis Update David Parrish
VOC Emissions in the Houston Area Joost de Gouw
Point Source NOx and SO2, Shipping, Ammonia, Mercury Emissions Tom Ryerson
On-Road Vehicle Emissions Greg Frost
What is the Best Conceptualization of O3 Production in the Houston Area? Michael Trainer
An Observational Investigation of Spatial and Temporal Variation Patterns in the Sensitivity of Ozone to VOC and NOx in the Houston-Galveston-Brazoria Ozone Nonattainment Area Basil Dimitriades
Characterization of Background Ozone and Aerosols Christoph Senff
Aerosol Formation and Transport Within Eastern Texas Chuck Brock
Interstate Transport of Ozone and Aerosols: The View from Satellites and Models Gregory Osterman
Interstate Transport of Ozone and Aerosols: the View from Satellites and Models Michael Garay
How Do the Structure and Dynamics of the Planetary Boundary Layer and Lower Troposphere Affect Ozone and Aerosol Concentrations in Houston, Dallas, and Eastern Texas? John Nielsen-Gammon
Evaluating the SAPRC and Carbon Bond Chemical Mechanisms for Use in Southeast Texas Dave Allen

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Author Title
Poster Presentations: Surface Networks, Ozone Regional Transport Network, VOC, NOx
Maedeh Faraji Comparison of the Carbon Bond and SAPRC Photochemical Mechanisms under Conditions Relevant to Southeast Texas

Michael Feldman

Applications of Satellite Remote Sensing Data for Estimating Biogenic Emissions in Southeastern Texas

Michael Feldman

Applications of Satellite Remote Sensing Data for Estimating Dry Deposition in Eastern Texas

Heather Simon

Processing a Model-Ready Emissions Inventory for Primary PM

Heather Simon

Heterogeneous Chemistry Research

Heather Simon

Review of Fine Particulate Matter Emissions Inventories and Comparisons of Emissions Estimates with Observations from Recent Field Studies

Junsang Nam

The Effect of Variability in Industrial Emissions on Ozone Formation in Houston, Texas

Mariana Dionisio

Regional Trends in Ozone Concentrations

Stuart Dattner

The Dust Storm Effects on Natural Haze

Poster Presentations: Met Analysis and Profiles, Ozonesondes

Ryan Perna

Analysis of Vertical Ozone Distribution above the University of Houston

Richard Orville

The Houston LDAR Network

John Nielsen-Gammon

Multi-Sensor Estimation of Mixing Heights over Houston during TexAQS-2000

Arthur Weissmann

The Sea-Breeze Low-Level Jet: Real or a Model's Imagination?

John Nielsen-Gammon

Recent Ensemble Simulations for Data Assimilation and Photochemistry Sensitivity to Meteorology

Monica Patel

Characterization of the Local Wind Circulations and Planetary Boundary Layer Development in the Houston-Galveston Area

Poster Presentations: Satellite Observations and the NASA King Air
Bradley Pierce

Aerosol Classification during TexAQS II using HSRL measurements

Jassim Al-Saadi

Evaluation of Near-Real-Time Biomass Burning Emissions Estimates derived from MODIS and GOES Active Fire Detections during 2006

Chieko Kittaka

Impacts of Regional Aerosol events on Houston Air Quality during TexAQS II

Fredrick W. Irion

Measurements of Temperature, Water Vapor, Ozone and Carbon Monoxide from AIRS

Bradley Pierce

Assimilation of OMI and TES O3/CO measurements during TexAQS II

Poster Presentations: Moody Tower, Houston Triangle, SOF, and Baylor Aztec
James Flynn

Measurements of Ozone, CO, NO, NO2, NOx and Photolysis Frequencies at the Moody Tower

Michael Leuchner

Measurements of VOC, PAN, and Formaldehyde at the Moody Tower Site

Monica Wright

Ambient Observations of Aerosol Optical Properties during TexAQS II using Cavity Ring-Down

Bill Brune

Atmospheric OH, HO2 and OH Reactivity Measurements at the Moody Tower

Jochen Stutz

Vertical Profiles of O3, NO2, SO2, HCHO, HONO, and NO3 in Houston

Crystal C. Reed

Size-Resolved Particle Concentration and Hygroscopicity Measurements at Multiple Surface Sites during TexAQS II

Sergio Alvarez

A Case Study using Aircraft Measurements and NOAA Hysplit Trajectory Analysis to Identify Unknown Emission Sources in Northeast Texas and Louisiana

Renyi Zhang

HNO3 and VOCs Measurements Using ID-CIMS and PTR-MS during TexAQS II 2006

Johan Mellqvist

Measurements of Industrial Emissions of NO2 and SO2 in Texas using Mobile DOAS

Johan Mellqvist

Measurements of Industrial Emissions of HRVOCs in Texas using the SOF Method

Johan Mellqvist

Measurements of Industrial Emissions of Alkanes in Houston and Southeastern Texas using the Solar Occultation Flux Method

Poster Presentations: NOAA WP-3D, R/V Ronald H. Brown, NOAA Lidar aircraft
Elliot Atlas

NMHC, Alkyl Nitrate, and Halocarbon Distributions from the NOAA WP-3D Aircraft during TexAQS II

Roya Bahreini

Measurements of Chemical Composition of Submicron Aerosols Onboard NOAA WP-3D during TexAQS II

Berko Sierau

Aerosol Optical Properties during TexAQS II - GoMACCS 2006

Brian Lerner

Small Marine Craft Emission Factors Observed from the R/V Ronald H. Brown during TexAQS II/GoMACCS 2006

Jerome Brioude

Mixing Between a Stratospheric Intrusion and a Biomass Burning Plume

Dan Welsh-Bon

Online VOC Measurements using PIT-MS on the Ronald Brown during TexAQS II

Eric Williams, Tim Bates

Overview of NOAA R/V Ronald H. Brown Measurements and Activities During TexAQS II

Wengang Zheng

Aircraft Measurements of PANs during TexAQS II

Hans Osthoff

Nocturnal Nitrogen Oxide Chemistry on board R/V Brown

Arsineh Hecobian

Secondary Organic Aerosol Formation in a CO-Producing Coal-Fired Power Plant, a non CO-Producing one and an Urban Plume

Janet Machol

Ozone and Aerosol Profiles from a Shipborne Lidar

Jim Roberts

PANs Observations from the NOAA R/V Ronald H Brown

Ludovic Bariteau

Shipborne Ozone Flux Measurements during TexAQS II

Lisa Darby

Comparison of the Urban Heat Island Signature of Two Texas Cities: Dallas and Houston

John .B. Nowak

Gas-to-Particle Conversion: Observations of Ammonium Nitrate Formation above Houston

Paola Massoli

The Optical Properties of Aerosols as Measured by Cavity Ring-Down Extinction Spectrometry during TexAQS II - GoMACCS 2006: Selection of Case Studies and their Implications for Air Quality and Climate

Jeff Peischl

An Examination of East Texas Power Plant Plumes

Dirk Richter

Preliminary Results of Formaldehyde Measurements during TexAQS II

Roberto Sommariva

Peroxy Radical Abundances and Ozone Production during TexAQS II - GoMACCS 2006

Ryan Spackman

In Situ Measurements of Black Carbon Aerosol during TexAQS II


Comparing Aerosol Properties with Actinic Flux Measurements during TexAQS II

Derek Coffman

Aerosol Size Distributions Measured Onboard Ronald H. Brown: Variability in Relation to Sources, Processing, and Meteorology

Sara Tucker

Ship-Based LIDAR Estimates of Marine Mixed Layer Heights during TexAQS II

Tara Fortin

Mercury Measurements Aboard the NOAA R/V Ronald H. Brown

Jessica Gilman

VOCs Measured with a GC-MS Aboard the Ronald H. Brown during TexAQS II and their OH reactivity

Trish Quinn

Cloud Nucleating Properties of Aerosols during TexAQS II - GoMACCS 2006

Troy Thornberry

Measurement of Aerosol Organic Compounds during TexAQS II using a Novel Collection/Thermal-Desorption PTR-ITMS Instrument

Rebecca Washenfelder

Emissions of SO2, NOx, and CO2 from the Houston Ship Channel Measured Onboard the NOAA WP-3D


TexAQS II Rapid Science Synthesis Workshop: October 12–13, 2006

Oct. 12, 2006, Morning
Title Author(s)
Overview of Ozone Exceedance in Houston and Dallas Mark Estes
Meteorologically Adjusted HRVOC Trends in Houston Dave Sullivan
NOx HGB and BPA Aug. and Sept. Diurnals Dave Sullivan
HRVOC Time Series, Dallas and Houston, 1995–2006 Dave Sullivan
HRVOC Distribution and Trends in Harris County Point Source EI John Jolly
Shipboard Measurements of HRVOCs and NOx Eric Williams
Measurements of Ethylene On-board the NOAA WP-3D Joost deGouw
Alkene-NOy Emission Ratio from Baylor Aztec and Comparison from 2001 Martin Buhr
Emissions from Ships and Offshore Platforms Eric_Williams
VOC Speciation During Morning Rush Hour Bernhard Rappenglueck
PTR-MS Measurements of Anthropogenic VOC On-board NOAA P-3 Joost deGouw
Temporal and Spatial Variation of NOx, CO, and Ozone from Moody Tower Bernhard Rappengluck
Mobile Emission CO-NOx Ratio Evolution in TX and Implications for EI David Parrish
Confirmation of EGU Emission Reduction Through Aircraft Measurements David Parrish
PTR-MS Measurements of Isoprene On-board NOAA P-3 Joost deGouw
Primary Emissions of Formaldehyde in Houston Joost deGouw
Observation of Formaldehyde at Moody Tower Bernhard Rappengluck
Gas Phase Mercury Measurements on the NOAA R.H. Brown David Parrish
Ammonia Measurements on the NOAA P-3 and R.H. Brown David Parrish
Oct. 12, 2006, Afternoon
Title Author(s)
Meteorological Conditions and Emissions Responsible for Creating High Ozone Design Values in West Houston Dave Allen
Analysis of High O3 Plumes Observed by NOAA Compared to 2000 David Parrish
Analysis of Houston 2000 CAMx SIP Model-Radial Sensitivity William Vizuete
SAPRC vs. CBIV—Photochemical Mechanism Comparison—Southeast Texas David Allen
CMAQ CB-4 and SAPRC Mechanism Comparison Simulation for Houston and Dallas Daweon Byun
Composition of Particles Produced from Houston Area Sources Chuck Brock
Advection of Plume from Houston Sources to NETX Aerosol Properties Chuck Brock
Regional Levels of O3 in Marine and Continental Boundary Layer from Lidar Christoph Senff
Importance of Nighttime Processing of Emissions in the Marine Boundary Layer Hans Osthoff
Ozone Transport Affecting DFW—Analysis With Rural O3 Sites Dave Sullivan
Visibility Dependence on Relative Humidity David Parrish
Aerosol Characterization from NOAA R.H. Brown David Parrish
Regional Influences on Houston and Dallas Air Quality Brad Pierce
Calculation of O3 Fluxes from Lidar Aircraft Measurements Christoph Senff
Ozone Transport Analysis for DFW 8-Hour Ozone Exceedance Days in 2002 Mark Estes
Ozone Sensitivities to VOC-NOx Emissions David Parrish
Oct. 13, 2006, Morning
Title Author(s)
Overview—Regional Background Ozone John Nielsen Gammon
Boundary Layer Heights in TexAQS and GOMACCS: Land and Ship Based Estimates Wayne Angevine
Horizontal Variability of Mixed-Layer Height from Airborne Airborne Lidar Measurements Christoph Senff
Ozone, Winds, Sea Breeze, and Background: Airborne Ozone DIAL Measurements Bob Banta
Sept 3–4, 2006 Ozone Buildup: A Broad-Brush Look at Meteorological and Transport Issues Lisa Darby
A Case Study of Vertical Ozone Distribution above UH: Aug. 31–Sept. 2, 2006 Ryan Perna
Eastern Texas Air Quality Forecasting Systems (ETAQ-F)—Evaluation of Summer 2006 Simulations Daewon Byun
Assessment of AQ Forecast Model Skill at Predicting O3 and PM2.5 Jim Wilczak
Data Assimilation within Regional Model Forecast: Results from Recent TexAQS 2000 Analyses John Nielsen-Gammon
Cataloging Meteorological Observational Database Lisa Darby

TexAQS II Update

Raj Nadkarni of the TCEQ gave a TexAQS II Field Study Update at the July 19, 2006 meeting of the Southeast Texas Photochemical Modeling Committee.

TexAQS II Intensive Field Study Meeting (April 18, 2006)

The Science Coordinating Committee held a meeting to discuss the planning and logistics for the intensive period of the TexAQS II Field Study on Tuesday April 18, 2006.


Title Author(s)
Intro and Welcome Candy Garrett
Review of Scientific Needs to Meet Current SIP Schedule Jim Smith
High Priority SIP-Relevant Science Questions Ellis Cowling
Status of the Study Emission Inventory David Allen
Network and Site Briefings Vince Torres, Dave Sullivan
Profiler Sites Allen White
Moody Tower Super Site Barry Lefer
Platform Briefings Tom Ryerson
CIRPAS Twin Otter / NASA King Air Michael Hardesty
Ronald H. Brown Eric Williams
Smart Balloons Rob Talbot
Changes in Atmospheric Concentrations of Ozone Mark Sather
Williams Tower Carl Berkowitz
Air-Quality Forecasting Stu McKeen
Air-Quality Forecasting Daewon Byun
Office Space Logistics Vince Torres, Ed Michels
Data Management Logistics Eric Williams
Doppler Observations of Boundary Layer Winds Larry Carey

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