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Energy balance in urban Mexico City: observation and parameterization during the MILAGRO/MCMA-2006 field campaign |
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| Authors: | Erik Velasco Shelley Pressley Rasa Grivicke Eugene Allwine Luisa T Molina Brian Lamb |
| Institution: | 1. Department of Geography, Faculty of Arts and Social Sciences, National University of Singapore, Singapore, Singapore 2. Molina Center for Energy and the Environment (MCE2), La Jolla, CA, USA 3. Laboratory for Atmospheric Research, Department of Civil and Environmental Engineering, Washington State University, Pullman, WA, USA |
| Abstract: | The parameterization of the energy balance from a residential and commercial neighborhood of Mexico City was investigated using direct measurements of radiative and heat fluxes carried out during the MILAGRO/MCMA-2006 field campaign as a reference. The measured fluxes were used to evaluate different models of the energy balance based on parameterizations that require standard meteorological observations: ambient temperature, relative humidity, atmospheric pressure and cloudiness. It was found that these models reproduce with reasonable accuracy the diurnal features of the radiative and heat fluxes. The largest differences between modeled and observed fluxes correspond to the incoming longwave radiation, mainly due to errors in the cloudiness data. This paper contributes to the understanding of the energy partitioning in (sub)tropical urban environments, particularly in the developing world, where energy balance models have not been evaluated. |
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