Abstract
A model for the urban canyon is formulated for meteorologicalconditions of weak winds at night time. Thermal radiation, conductivity and convection are simulated by means of the Monte Carlo method. These are the main physical processesof energy transfer that give rise to the characteristic temperaturedistribution in these systems. The model has been satisfactory tested under ideal conditions for which analytical solutions exist.The predictions of the model under morerealistic conditions accurately reproduce the observationalresults. A strong temperature gradient across streets, with the canyon corners up to 4 °C warmer than the canyon centre, is found for the deepest canyons. This theoretical predictionhas been successfully verified with measurementstaken in a number of streets of the city of Granada in Spain.
Similar content being viewed by others
References
Arnfield, A. J.: 1990, ‘Canyon Geometry, the Urban Fabric and Nocturnal Cooling: A Simulation Approach’, Physical Geog. 11, 220-239.
Arnfield, A. J. and Mills, G. M.: 1994, ‘An Analysis of the Circulation Characteristics and Energy Budget of a Dry, Asymmetric, East-West Canyon. II Energy Budget’, Int. J. Climatol. 14, 239-261.
Asaeda, T. and Ca, V. T.: 1996, ‘Heat Storage of Pavement and its Effect on the Lower Atmosphere’, Atmos. Environ. 30, 413-427.
Binder, K.: 1992, The Monte Carlo Method in Condensed Matter Physics, Springer Verlag, Berlin, 392 pp.
Bornstein, R.: 1982, ‘Urban Climate Models, Nature Limitations and Applications’, Proc. Technical Conf. Mexico, WMO 672, 237-276.
Cermak, J. E.: 1995, ‘Thermal Effects on Flow and Dispersion over Urban Areas: Capabilities for Prediction by Physical Modeling’, Atmos. Environ. 30, 393-401.
Clarke, R. H. and Brook, R. (eds.): 1979, The Koorin Expedition: Atmospheric Boundary Layer Data over Tropical Savannah Land, Australian Govt. Publishing Service, Dept. Sci., Bureau Meteorol., 359 pp.
Eliasson, Y.: 1996, ‘Urban Nocturnal Temperatures, Street Geometry and Land Use’, Atmos. Environ. 30, 379-392.
Fernández, F. and Gómez, A. (eds.): 1998, Clima y Ambiente Urbano en Ciudades Españolas e Iberoamericas. Parteluz, Madrid, 606 pp.
Figueroa, P. I. and Mazzeo, N. A.: 1998, ‘Urban-Rural Temperature Differences in Buenos Aires’, Int. J. Climatol. 18, 1709-1723.
Gallo, K. P., Menab, A. L., Karl, T. R., Brown, J., Hood, J. J., and Tarpley, J. D.: 1993, ‘The Use of NOAA AVHRR Data for Assessment of the Urban Heat Island Effect’, J. Appl. Meteorol. 32, 899-908.
Idso, S. B.: 1981, ‘A Set of Equations for Full Spectrum and 8–14 μm and 10.5–12.5 μ Thermal Radiation from Cloudless Skies’, Water Resour. Res. 17, 295-304.
Johnson, G. T., Oke, T. R., Steyn, D. G., Watson, I. D., and Voogt, J. A.: 1991, ‘Simulation of Surface Urban Heat Island under “Ideal” Conditions at Night. Part 1, Theory and Tests against Field Data’, Boundary-Layer Meteorol. 56, 275-294.
Jones, P. D., Groisman, P. Y., Coughlan, M., Plummer, N., Wong, W. C., and Karl, T. R.: 1990, ‘Assessment of Urbanization Effects in Time Series of Surface Air Temperature over Land’, Nature 347, 169-177.
Kalos, M. H. and Whitlock, P. A.: 1986, Monte Carlo Methods, Vol. I: Basics. Wiley, New York, 186 pp.
Kobayashi, T. and Takamura, T.: 1994, ‘Upward Long Wave Radiation From a Non-Black Urban Canopy’, Boundary-Layer Meteorol. 69, 201-213.
Landsberg, H. E.: 1981, The Urban Climate, Academic Press, New York, 275 pp.
Lee, H. Y.: 1988, ‘An Application of NOAA AVHRR Thermal Data to the Study of the Urban Heat Island’, Atmos. Environ. 27B, 1699-1720.
Lester, W. A. (ed.): 1997, Recents Advances in Quantum Monte Carlo Methods, World Scientific, Singapore, 235 pp.
López, A., Fernández, F., Arroyo, F., Martin-Vide, J., and Cuadrat, J.: 1993, El Clima de las Ciudades Españolas. Ed. Madrid, Madrid, 265 pp.
Lu, J., Arya, P., Snyder, W. H., and Lawson, R. E.: 1997, ‘A Laboratory Study of the Urban Heat Island in a Calm and Stably Stratified Environment. Part II: Velocity Field’, J. Appl. Meteorol. 36, 1392-1402.
Mills, G. M.: 1993, ‘Simulation of the Energy Budget of a Urban Canyon. I Model Structure and Sensitivity Test’, Atmos. Environ. 27B, 157-170.
Mills, G. M. and Arnfield, A. J.: 1993, ‘Simulation of the Energy Budget of a Urban Canyon. II Comparison of Model Results with Measurements’, Atmos. Environ. 27B, 171-181.
Montávez, J. P., Rodríguez, A. J., and Jiménez, J. I.: 1999, ‘A Study of the Urban Heat Island of Granada’, Int. J. Climatol., in press.
Montávez, J. P., Sarsa, A., Sánchez, E., and Jiménez, J. I.: 1998, Applied Sciences and the Environment, Vol. 4 of Environmental Engineering, Chapter: Some Applications of Monte Carlo Methods in Urban Climate, WIT Press, pp. 113-121.
Moreno, M. C.: 1994, ‘Intensity and Form of the Urban Heat Island in Barcelona’, Int. J. Climatol. 14, 705-710.
Nakamura, Y. and Oke, T. R.: 1988, ‘Wind, Temperature and Stability Conditions in an East-West Oriented Urban Canyon’, Atmos. Environ. 22, 2691-2700.
Noto, K.: 1996, ‘Dependence of the Heat Island Phenomena on Stable Stratification and Heat Quantity in a Calm Environment’, Atmos. Environ. 30, 475-485.
Novak, M. D. and Black, T. A.: 1985, ‘Theorical Determination of the Surface Energy Balance and Thermal Regimes of Bare Soils’, Boundary-Layer Meteorol. 33, 313-333.
Nunez, M. and Oke, T. R.: 1977, ‘Energy Balance of an Urban Canyon’, J. Appl. Meteorol. 16, 11-19.
Oke, T. R.: 1981, ‘Canyon Geometry and the Nocturnal Urban Heat Island: Comparison of Scale Model and Field Observations’, J. Climatol. 1, 237-254.
Oke, T. R.: 1987, Boundary Layer Climates, Routledge, London and New York, 435 pp.
Oke, T. R. and Maxwell, G. B.: 1975, ‘Urban Heat Island Dynamics in Montreal and Vancouver’, Atmos. Environ. 9, 191-200.
Oke, T., Johnson, G., Steyn, D., and Watson, I.: 1991, ‘Simulation of Surface Urban Heat Island under “Ideal” Conditions. Part 2: Diagnosis of Causation’, Boundary-Layer Meteorol. 56, 339-358.
Oke, T. R., Zeuner, G., and Jauregui, E.: 1992, ‘The Surface Energy Balance in Mexico City’, Atmos. Environ. 26B, 433-444.
Roth, H., Oke, T. R., and Emery, W. J.: 1984, ‘Satellite-derived Urban Heat Islands from Three Coastal Cities and the Utilization of Such Data in Urban Climatology’, Int. J. Remote Sens. 10, 1-13.
Saitoh, T. S., Shimada, T., and Hoshi, H.: 1996, ‘Modeling and Simulation of the Tokyo Urban Heat Island’, Atmos. Environ. 30, 3431-3442.
Sakakibara, Y.: 1996, ‘A Numerical Study of the Effect of Urban Geometry upon the Surface Energy Budget’, Atmos. Environ. 30, 487-496.
Swaid, H.: 1995, ‘Urban Related Aspects of the Force-Restore Method’, Atmos. Environ. 29, 3401-3409.
Tacsler, R.: 1980, ‘Studies of the Development and Thermal Structure of the Urban Boundary Layer in Uppsala: Parts I and II’, Reports 60 and 61, Meteorol. Inst. Uppsala Univ.
Terjung, W. H. and O'Rourke, P. A.: 1979, ‘Simulating the Causal Elements of Urban Heat Islands’, Boundary-Layer Meteorol. 19, 93-118.
Voogt, J. A. and Oke, T. R.: 1991, ‘Validation of an Urban Radiation Model for Nocturnal Long-Wave Fluxes’, Boundary-Layer Meteorol. 54, 347-361.
Yague, C., Zurita, E., and Martinez, A.: 1996, ‘Statistical Analysis of the Urban Heat Island’, Atmos. Environ. 30, 429-435.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Montávez, J.P., Jiménez, J.I. & Sarsa, A. A Monte Carlo Model Of The Nocturnal Surface Temperatures In Urban Canyons. Boundary-Layer Meteorology 96, 433–452 (2000). https://doi.org/10.1023/A:1002600523841
Issue Date:
DOI: https://doi.org/10.1023/A:1002600523841