edu.ucar.opensky::articles:17430 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-26T15:13:46.427185 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d78s4r79 Predicted impacts of climate and land-use change on surface ozone in the Houston, Texas, area 2008-10-30T00:00:00Z publication https://n2t.org/ark:/85065/d78s4r79 https://doi.org/10.1029/2008JD009820 Jiang, X. author Wiedinmyer, Christine author Chen, Fei author Yang, Z. author Lo, J. author UCAR/NCAR - Library publisher This paper studies the effects of climate change under future A1B scenario and land use change on surface ozone (O₃) in the greater Houston, Texas, area. We applied the Weather Research and Forecasting Model with Chemistry (WRF/Chem) to the Houston area for August of current (2001-2003) and future (2051-2053) years. The model was forced by downscaled 6-hourly Community Climate System Model (CCSM) version 3 outputs. High-resolution current year land use data from National Land Cover Database (NLCDF) and future year land use distribution based on projected population density for the Houston area were used in the WRF/Chem model coupled with an Urban Canopy Model (UCM). Our simulations show that there is generally a 2°C increase in near-surface temperature over much of the modeling domain due to future climate and land use changes. In the urban area, the effect of climate change alone accounts for an increase of 2.6 ppb in daily maximum 8-h O₃ concentrations, and a 62% increase of urban land use area exerts more influence than does climate change. The combined effect of the two factors on O₃ concentrations can be up to 6.2 ppb. The impacts of climate and land use change on O₃ concentrations differ across the various areas of the domain. The increase in extreme O₃ days can be up to 4-5 days in August, in which land use contributes to 2-3 days' increase. Additional sensitivity experiments show that the effect of future anthropogenic emissions change is on the same order of those induced by climate and land use change on extreme O₃ days. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication An edited version of this paper was published by AGU. Copyright 2008 American Geophysical Union. None eng geoscientificInformation