dc.contributor.author | Oleson, Keith W. | |
dc.contributor.author | Bonan, Gordon B. | |
dc.contributor.author | Feddema, Johannes J. | |
dc.contributor.author | Vertenstein, M. | |
dc.contributor.author | Grimmond, C. S. B. | |
dc.date.accessioned | 2012-05-10T17:44:19Z | |
dc.date.available | 2012-05-10T17:44:19Z | |
dc.date.issued | 2008 | |
dc.identifier.citation | Oleson, K. W., G. B. Bonan, J. Feddema, M. Vertenstein, C. S. B. Grimmond, 2008: An Urban Parameterization for a Global Climate Model. Part I: Formulation and Evaluation for Two Cities. J. Appl. Meteor. Climatol., 47, 1038–1060. http://dx.doi.org/10.1175/2007JAMC1597.1 | en_US |
dc.identifier.uri | http://hdl.handle.net/1808/9391 | |
dc.description | © 2008 American Meteorological Society | en_US |
dc.description.abstract | Urbanization, the expansion of built-up areas, is an important yet less-studied aspect of land use/land
cover change in climate science. To date, most global climate models used to evaluate effects of land
use/land cover change on climate do not include an urban parameterization. Here, the authors describe the
formulation and evaluation of a parameterization of urban areas that is incorporated into the Community
Land Model, the land surface component of the Community Climate System Model. The model is designed
to be simple enough to be compatible with structural and computational constraints of a land surface model
coupled to a global climate model yet complex enough to explore physically based processes known to be
important in determining urban climatology. The city representation is based upon the “urban canyon”
concept, which consists of roofs, sunlit and shaded walls, and canyon floor. The canyon floor is divided into
pervious (e.g., residential lawns, parks) and impervious (e.g., roads, parking lots, sidewalks) fractions.
Trapping of longwave radiation by canyon surfaces and solar radiation absorption and reflection is determined
by accounting for multiple reflections. Separate energy balances and surface temperatures are
determined for each canyon facet. A one-dimensional heat conduction equation is solved numerically for
a 10-layer column to determine conduction fluxes into and out of canyon surfaces. Model performance is
evaluated against measured fluxes and temperatures from two urban sites. Results indicate the model does
a reasonable job of simulating the energy balance of cities. | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | American Meteorological Society | en_US |
dc.title | An Urban Parameterization for a Global Climate Model. Part I: Formulation and Evaluation for Two Cities | en_US |
dc.type | Article | |
kusw.kuauthor | Feddema, Johannes J. | |
kusw.kudepartment | Geography | en_US |
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dc.identifier.doi | 10.1175/2007JAMC1597.1 | |
kusw.oaversion | Scholarly/refereed, publisher version | |
kusw.oapolicy | This item does not meet KU Open Access policy criteria. | |
dc.rights.accessrights | openAccess | |