HR: 1340h
AN: A23C-1464 [Abstracts]
TI: Observational Evaluation of Mobile Source Emissions
AU: * Frost, G J
EM: Gregory.J.Frost@noaa.gov
AF: NOAA Earth System Research Laboratory, Chemical Sciences Division, 325 Broadway,
R/CSD4, Boulder, CO 80305, United States
AU: * Frost, G J
EM: Gregory.J.Frost@noaa.gov
AF: University of Colorado, Cooperative Institute for Research in Environmental Sciences,
CB216, Boulder, CO 80309, United States
AU: McKeen, S
EM: Stuart.A.McKeen@noaa.gov
AF: NOAA Earth System Research Laboratory, Chemical Sciences Division, 325 Broadway,
R/CSD4, Boulder, CO 80305, United States
AU: McKeen, S
EM: Stuart.A.McKeen@noaa.gov
AF: University of Colorado, Cooperative Institute for Research in Environmental Sciences,
CB216, Boulder, CO 80309, United States
AU: Trainer, M
EM: Michael.K.Trainer@noaa.gov
AF: NOAA Earth System Research Laboratory, Chemical Sciences Division, 325 Broadway,
R/CSD4, Boulder, CO 80305, United States
AU: Aikin, K
EM: Kenneth.C.Aikin@noaa.gov
AF: NOAA Earth System Research Laboratory, Chemical Sciences Division, 325 Broadway,
R/CSD4, Boulder, CO 80305, United States
AU: Aikin, K
EM: Kenneth.C.Aikin@noaa.gov
AF: University of Colorado, Cooperative Institute for Research in Environmental Sciences,
CB216, Boulder, CO 80309, United States
AU: Peischl, J
EM: Jeff.Peischl@noaa.gov
AF: NOAA Earth System Research Laboratory, Chemical Sciences Division, 325 Broadway,
R/CSD4, Boulder, CO 80305, United States
AU: Peischl, J
EM: Jeff.Peischl@noaa.gov
AF: University of Colorado, Cooperative Institute for Research in Environmental Sciences,
CB216, Boulder, CO 80309, United States
AU: Ryerson, T
EM: Thomas.B.Ryerson@noaa.gov
AF: NOAA Earth System Research Laboratory, Chemical Sciences Division, 325 Broadway,
R/CSD4, Boulder, CO 80305, United States
AU: Holloway, J
EM: John.S.Holloway@noaa.gov
AF: NOAA Earth System Research Laboratory, Chemical Sciences Division, 325 Broadway,
R/CSD4, Boulder, CO 80305, United States
AU: Holloway, J
EM: John.S.Holloway@noaa.gov
AF: University of Colorado, Cooperative Institute for Research in Environmental Sciences,
CB216, Boulder, CO 80309, United States
AU: Petron, G
EM: Gabrielle.Petron@noaa.gov
AF: NOAA Earth System Research Laboratory, Global Monitoring Division, 325 Broadway,
R/GMD1, Boulder, CO 80305, United States
AU: Petron, G
EM: Gabrielle.Petron@noaa.gov
AF: University of Colorado, Cooperative Institute for Research in Environmental Sciences,
CB216, Boulder, CO 80309, United States
AU: Tans, P
EM: Pieter.Tans@noaa.gov
AF: NOAA Earth System Research Laboratory, Global Monitoring Division, 325 Broadway,
R/GMD1, Boulder, CO 80305, United States
AU: Harley, R
EM: harley@ce.berkeley.edu
AF: University of California, Department of Civil and Environmental Engineering, Berkeley, CA
94720-1710, United States
AB:
Ambient ratios of NOx, CO, and CO2 sampled by aircraft in Houston and Dallas during the 2000 and 2006 Texas
Air Quality Study (TexAQS) are compared with each other and with observations at a Houston highway tunnel.
From these measurements we estimate 2000 and 2006 emissions for Houston and Dallas mobile sources. The
observations demonstrate time-of-day variations in the relative contributions from gasoline and diesel
combustion which are consistent with known traffic patterns. We incorporate CO2 emissions derived from the
Federal Highway Administration's motor vehicle fuel use statistics into the EPA's National Emission Inventory
(NEI), resulting in an emission data set for NOx, CO, and CO2 with 4-km spatial and hourly temporal resolution.
Comparison of the emission ratios derived from the TexAQS observations with this inventory allows a direct
evaluation of the NEI mobile source NOx and CO emissions.
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
DE: 0365 Troposphere: composition and chemistry
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting