Identification

Title

Impacts of biogenic emissions on photochemical ozone production in Houston, Texas

Abstract

A regional chemical transport model (CTM) has been employed to assess the influence of biogenic emissions on ozone (O₃) formation in Houston, Texas during an eight-day episode of 24–31 August 2000 in association with the Texas Air Quality Study (TexAQS) 2000. The effects of isoprene and monoterpene emissions on O₃ photochemistry in this region were investigated. Isoprene emissions played an important role in O₃ formation when the O₃ plume occurred in the afternoon over the urban Houston area. When the isoprene emissions were decreased or increased by 50%, the O₃ concentration was decreased or increased by 5–25 ppb over the urban Houston area, respectively, but the change in the O₃ concentration was less than 5–10 ppb over the industrial Ship Channel. Additional sensitivity studies showed that the surface O₃ change resulted primarily from local isoprene emissions, although transport of isoprene from the north of the urban Houston area was found to be nonnegligible in the isoprene budget on several days. The contribution of monoterpene emissions to O₃ formation was insignificant due to low emission rate and relatively slow reaction rate.

Resource type

document

Resource locator

Unique resource identifier

code

https://n2t.org/ark:/85065/d7h1328p

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

Keyword set

keyword value

Text

originating controlled vocabulary

title

Resource Type

reference date

date type

publication

effective date

2016-01-01T00:00:00Z

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

End position

Dataset reference date

date type

publication

effective date

2007-03-23T00:00:00Z

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Limitations on public access

None

Responsible organisations

Responsible party

contact position

OpenSky Support

organisation name

UCAR/NCAR - Library

full postal address

PO Box 3000

Boulder

80307-3000

email address

opensky@ucar.edu

web address

http://opensky.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact