Impact of high-resolution sea surface temperature, emission spikes and wind on simulated surface ozone in Houston, Texas during a high ozone episode

Pan, Shuai; Choi, Yunsoo; Jeon, Wonbae; Roy, Anirban; Westenbarger, David A.; Kim, Hyun Cheol

doi:10.1016/j.atmosenv.2016.12.030

i

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Impact of high-resolution sea surface temperature, emission spikes and wind on simulated surface ozone in Houston, Texas during a high ozone episode

2017
By Pan, Shuai ; Choi, Yunsoo ; Jeon, Wonbae ; ...

Details

Journal Title:

Atmospheric Environment
Personal Author:

Pan, Shuai ; Choi, Yunsoo ; Jeon, Wonbae ; Roy, Anirban ; Westenbarger, David A. ; Kim, Hyun Cheol
Corporate Authors:

United States. National Oceanic and Atmospheric Administration. Office of Oceanic and Atmospheric Research ; Air Resources Laboratory (U.S.)
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; ARL (Air Resources Laboratory) ; CICS (Cooperative Institute for Climate and Satellites)
Description:

Model-measurement comparisons for surface ozone often show significant error, which could be attributed to problems in meteorology and emissions fields. A WRF-SMOKE-CMAQ air quality modeling system was used to investigate the contributions of these inputs. In this space, a base WRF run (BASE) and a WRF run initializing with NOAA GOES satellite sea surface temperature (SST) (SENS) were performed to clarify the impact of high-resolution SST on simulated surface ozone (O3) over the Greater Houston area during 25 September 2013, corresponding to the high O3 episode during the NASA DISCOVER-AQ Texas campaign. The SENS case showed reduced land-sea thermal contrast during early morning hours due to 1–2 °C lower SST over water bodies. The lowered SST reduced the model wind speed and slowed the dilution rate. These changes led to a simulated downwind O3 change of ∼5 ppb near the area over land with peak simulated afternoon O3. However, the SENS case still under-predicted surface O3 in urban and industrial areas. Episodic flare emissions, dry sunny postfrontal stagnated conditions, and land-bay/sea breeze transitions could be the potential causes of the high O3.
Content Notes:

Authors acknowledge the free use of the NOAA GOES SST, NDBC buoy temperature and MADIS ACARS wind profiles data, NCEP NARR data, TCEQ CAMS in-situ meteorological and chemical species data, and NASA DISCOVER-AQ aircraft O3, NOy and HCHO data.
Keywords:

Atmospheric Science Environmental Science CMAQ Emission Ozone Nonattainment SST Wind Direction
Source:

Atmospheric Environment, 152, 362-376
DOI:

https://doi.org/10.1016/j.atmosenv.2016.12.030
ISSN:

1352-2310
Format:

PDF
Publisher:

Elsevier BV
Document Type:

Journal Article
Place as Subject:

Houston (Tex.)
Rights Information:

Accepted Manuscript
Rights Statement:

The contents of the paper are the authors' sole responsibility. They do not represent the views of the TCEQ and NOAA or their staff.
Compliance:

Library
Main Document Checksum:

urn:sha256:c6361131fa5b61c7d18c7abbc4262bf3ba20af34042969b73054f4585898ed01
Download URL:

https://repository.library.noaa.gov/view/noaa/52420/noaa_52420_DS1.pdf
File Type:

[PDF - 1.62 MB ]

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