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Stephen Shaffer

Stephen Shaffer

Postdoctoral Scholar, School of Mathematical and Statistical Sciences, College of Liberal Arts and Sciences

stephen.shaffer@asu.edu

School of Mathematical and Statistical Sciences
Arizona State University
PO Box 871804
Tempe, AZ 85287-1804

Titles

  • Senior Sustainability Fellow, Julie Ann Wrigley Global Institute of Sustainability
  • Postdoctoral Scholar, School of Mathematical and Statistical Sciences, College of Liberal Arts and Sciences

Biography

Stephen Shaffer is currently a postdoctoral scholar in the School of Mathematical and Statistical Sciences and the Julie Ann Wrigley Global Institute of Sustainability since December 2014. He received a Ph.D. and M.S. in Mechanical Engineering at Arizona State University within the Center for Environmental Fluid Dynamics in 2014 and 2009, respectively, and a B.S. in Physics, Astronomy, and Mathematics, from the University of Arizona in 2005.

Education

  • PhD, Mechanical Engineering, Arizona State University, 2014
  • MS, Mechanical Engineering, Arizona State University, 2009
  • BS, Astronomy/Mathematics, University of Arizona, 2005
  • AS, Engineering Science, Manchester Community College, 2001
  • AS, General Studies, Manchester Community College, 2000

Expertise

Journal Articles

2016

Shaffer, S. R., M. Moustaoui, A. Mahalov and B. L. Ruddell. 2016. A method of aggregating heterogeneous subgrid land-cover input data for multiscale urban parameterization. Journal of Applied Meteorology and Climatology 55(9):1889=1905. DOI: 10.1175/JAMC-D-16-0027.1. (link )

Shaffer, S. R., M. Moustaoui, A. Mahalov and B. L. Ruddell. 2016. A method of aggregating heterogeneous subgrid land-cover input data for multiscale urban parameterization. Journal of Applied Meteorology and Climatology 55(9):1889-1905. DOI: 10.1175/JAMC-D-16-0027.1. (link )

2015

Shaffer, S. R., W. T. Chow, M. Georgescu, P. Hyde, G. D. Jenerette, A. Mahalov, M. Moustaoui and B. L. Ruddell. 2015. Multiscale modeling and evaluation of urban surface energy balance in the Phoenix metropolitan area. Journal of Applied Meteorology and Climatology 54:322-338. DOI: 10.1175/JAMC-D-14-0051.1. (link )

Shaffer, S. R., H. J. Fernando, N. C. Ovenden, M. Moustaoui and A. Mahalov. 2015. Simulating meteorological profiles to study noise propagation from freeways. Applied Acoustics 92(May):102-114. DOI: 10.1016/j.apacoust.2014.12.010. (link )

2009

Ovenden, N. C., S. R. Shaffer and H. J. Fernando. 2009. Impact of meteorological conditions on noise propagation from freeway corridors. Journal of the Acoustical Society of America 126(1):25-35. DOI: 10.1121/1.3129125. (link )

Posters

2016

Shaffer, S. R. 2016. Improving input data for urban canopy and land surface models: Sensitivity analysis of land cover data products. Poster presented at the 17th Annual WRF Users' Workshop, 27 June-1 July 2016, Boulder, CO. (link )

2015

Li, X., S. R. Shaffer, A. Mahalov, B. L. Turner II, M. Georgescu, I. Kamarianakis, E. Mack and M. Moustaoui. 2015. High-resolution fractional land-cover classification and infuence of multi-scale aggregation method for urban applications. Poster presented at the 16th Annual WRF Users Workshop, 17 June 2015, Boulder, CO. (link )

Shaffer, S. R. 2015. A method of aggregating heterogeneous subgrid land cover input data for multiscale urban parameterization within atmospheric models. Poster presented at the AGU Fall Meeting, 14-18 Decemvber 2015, San Francisco, CA. (link )

Shaffer, S. R., M. Moustaoui, A. Mahalov and B. L. Ruddell. 2015. A method of aggregating heterogeneous subgrid land cover input data for multi-scale parameterization. Poster presented at the 16th Annual WRF Users Workshop, 17 June 2015, Boulder, CO. (link )

2013

Shaffer, S. R., B. L. Ruddell, W. T. Chow, M. Moustaoui, A. Mahalov and M. Georgescu. 2013. Evaluation of WRF for fine scale surface energy balance modeling in Phoenix. Poster presented at the 2013 AGU Fall Meeting, 9-13 December 2013, San Francisco, CA. (link )

2012

Ruddell, B. L., D. Jenerette, M. Moustaoui, E. R. Vivoni, W. T. Chow, S. Shaffer, T. J. Volo, C. A. Martin, A. Mahalov and S. L. Harlan. 2012. Modeling the urban climate at the human scale in hot/dry regions. Poster presented at the 3-7 December 2012 Fall Meeting of the American Geophysical Union, San Francisco, CA.

Presentations

2016

Shaffer, S. R. 2016. Big data aspects of multi-scale urban atmosphere modelling. Presentation at the Economics, Statistics and Information Resources Committee of the Agricultural & Applied Economics Association Workshop, Big Data in Applied Economics: Knowledge and Applications, Annual Meeting of Agricultural & Applied Economics Association, 30 July 2016, Boston, MA. (link )

2015

Shaffer, S. R. 2015. A method of aggregating heterogeneous subgrid land cover input data for multi-scale parameterization. Presentation at the EaSM Principal Investigators Meeting, 31 August 2015, Rockville, MD.

Reports

2013

Shaffer, S. R., H. J. Fernando and N. C. Ovenden. 2013. Investigations of environmental effects on freeway acoustics. Center for Environmental Fluid Dynamics, Arizona State University. Final 605-2. (link )

2010

Fernando, H. J., N. C. Ovenden and S. R. Shaffer. 2010. Investigations of environmental effects on freeway acoustics. Center for Environmental Fluid Dynamics, Arizona State University. Final 605(1). (link )

Thesis (PhD)

2014

Shaffer, S. R. 2014. Investigations of environmental effects on freeway acoustics. Department of Mechanical Engineering, Arizona State University. (link )