Sensitivity of WRF model to urban parameterizations, with applications to Chicago metropolitan urban heat Island

Ashish Sharma; Harindra J.S. Fernando; Jessica Hellmann; Fei Chen

doi:10.1115/FEDSM2014-21292

Sensitivity of WRF model to urban parameterizations, with applications to Chicago metropolitan urban heat Island

Ashish Sharma, Harindra J.S. Fernando, Jessica Hellmann, Fei Chen

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

20 Scopus citations

Abstract

Chicago is one of the most populated cites of US. It is located next to a freshwater source, Lake Michigan, and surrounded by productive agricultural land and diverse natural habitats. This study explores the sensitivity of mesoscale urban heat island (UHI) simulations to urban parameterizations, focusing on the Chicago metropolitan area (CMA) and its environs. For this purpose, a series of climate downscaling experiments using the Weather Research and Forecasting (WRF) model at 1 km horizontal resolution. A typical summer hot day in Chicago was considered, which is imitative of a summer day in the late 21st century. This study utilizes National Land Cover Database (NLCD) 2006 classifications to test UHI sensitivity for CMA. Among different urban parameterization schemes, BEP+BEM best reproduces the urban surface temperatures in comparison to other urban schemes. Results show that UHI is more pronounced with BEP and BEP+BEM schemes due to explicit accounting of anthropogenic heat (AH). The study also investigates the effects of urbanization on regional climate by replacing Chicago metropolitan area by agricultural landscape, which yielded increased surface wind speeds due to reduced mechanical and thermal resistance.

Original language	English (US)
Title of host publication	Symposia
Subtitle of host publication	Transport Phenomena in Mixing; Turbulent Flows; Urban Fluid Mechanics; Fluid Dynamic Behavior of Complex Particles; Analysis of Elementary Processes in Dispersed Multiphase Flows; Multiphase Flow With Heat/Mass Transfer in Process Technology; Fluid Mechanics of Aircraft and Rocket Emissions and Their Environmental Impacts; High Performance CFD Computation; Performance of Multiphase Flow Systems; Wind Energy; Uncertainty Quantification in Flow Measurements and Simulations
Publisher	American Society of Mechanical Engineers (ASME)
ISBN (Electronic)	9780791846247
DOIs	https://doi.org/10.1115/FEDSM2014-21292
State	Published - 2014
Externally published	Yes
Event	ASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting, FEDSM 2014, Collocated with the ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels - Chicago, United States Duration: Aug 3 2014 → Aug 7 2014

Publication series

Name	American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM
Volume	1D
ISSN (Print)	0888-8116

Other

Other	ASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting, FEDSM 2014, Collocated with the ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels
Country/Territory	United States
City	Chicago
Period	8/3/14 → 8/7/14

Bibliographical note

Publisher Copyright:
Copyright © 2014 by ASME.

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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Sharma, A., Fernando, H. J. S., Hellmann, J., & Chen, F. (2014). Sensitivity of WRF model to urban parameterizations, with applications to Chicago metropolitan urban heat Island. In Symposia: Transport Phenomena in Mixing; Turbulent Flows; Urban Fluid Mechanics; Fluid Dynamic Behavior of Complex Particles; Analysis of Elementary Processes in Dispersed Multiphase Flows; Multiphase Flow With Heat/Mass Transfer in Process Technology; Fluid Mechanics of Aircraft and Rocket Emissions and Their Environmental Impacts; High Performance CFD Computation; Performance of Multiphase Flow Systems; Wind Energy; Uncertainty Quantification in Flow Measurements and Simulations (American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM; Vol. 1D). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/FEDSM2014-21292

Sensitivity of WRF model to urban parameterizations, with applications to Chicago metropolitan urban heat Island. / Sharma, Ashish; Fernando, Harindra J.S.; Hellmann, Jessica et al.
Symposia: Transport Phenomena in Mixing; Turbulent Flows; Urban Fluid Mechanics; Fluid Dynamic Behavior of Complex Particles; Analysis of Elementary Processes in Dispersed Multiphase Flows; Multiphase Flow With Heat/Mass Transfer in Process Technology; Fluid Mechanics of Aircraft and Rocket Emissions and Their Environmental Impacts; High Performance CFD Computation; Performance of Multiphase Flow Systems; Wind Energy; Uncertainty Quantification in Flow Measurements and Simulations. American Society of Mechanical Engineers (ASME), 2014. (American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM; Vol. 1D).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Sharma, A, Fernando, HJS, Hellmann, J & Chen, F 2014, Sensitivity of WRF model to urban parameterizations, with applications to Chicago metropolitan urban heat Island. in Symposia: Transport Phenomena in Mixing; Turbulent Flows; Urban Fluid Mechanics; Fluid Dynamic Behavior of Complex Particles; Analysis of Elementary Processes in Dispersed Multiphase Flows; Multiphase Flow With Heat/Mass Transfer in Process Technology; Fluid Mechanics of Aircraft and Rocket Emissions and Their Environmental Impacts; High Performance CFD Computation; Performance of Multiphase Flow Systems; Wind Energy; Uncertainty Quantification in Flow Measurements and Simulations. American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM, vol. 1D, American Society of Mechanical Engineers (ASME), ASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting, FEDSM 2014, Collocated with the ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels, Chicago, United States, 8/3/14. https://doi.org/10.1115/FEDSM2014-21292

Sharma A, Fernando HJS, Hellmann J, Chen F. Sensitivity of WRF model to urban parameterizations, with applications to Chicago metropolitan urban heat Island. In Symposia: Transport Phenomena in Mixing; Turbulent Flows; Urban Fluid Mechanics; Fluid Dynamic Behavior of Complex Particles; Analysis of Elementary Processes in Dispersed Multiphase Flows; Multiphase Flow With Heat/Mass Transfer in Process Technology; Fluid Mechanics of Aircraft and Rocket Emissions and Their Environmental Impacts; High Performance CFD Computation; Performance of Multiphase Flow Systems; Wind Energy; Uncertainty Quantification in Flow Measurements and Simulations. American Society of Mechanical Engineers (ASME). 2014. (American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM). doi: 10.1115/FEDSM2014-21292

Sharma, Ashish ; Fernando, Harindra J.S. ; Hellmann, Jessica et al. / Sensitivity of WRF model to urban parameterizations, with applications to Chicago metropolitan urban heat Island. Symposia: Transport Phenomena in Mixing; Turbulent Flows; Urban Fluid Mechanics; Fluid Dynamic Behavior of Complex Particles; Analysis of Elementary Processes in Dispersed Multiphase Flows; Multiphase Flow With Heat/Mass Transfer in Process Technology; Fluid Mechanics of Aircraft and Rocket Emissions and Their Environmental Impacts; High Performance CFD Computation; Performance of Multiphase Flow Systems; Wind Energy; Uncertainty Quantification in Flow Measurements and Simulations. American Society of Mechanical Engineers (ASME), 2014. (American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM).

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Sensitivity of WRF model to urban parameterizations, with applications to Chicago metropolitan urban heat Island

Abstract

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Bibliographical note

UN SDGs

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