Abstract:
For U.S., Argentine and Australian cities, yearly mean urban to rural temperature differences (ΔT(u-r)) and rural temperatures (T(r)) are negatively correlated in almost every case, suggesting that urban heat island intensity depends, among other parameters on the temperature itself. This negative correlation is related to the fact that interannual variability of temperature is generally lower in urban environments than in rural areas. This seems to hold true at low frequencies leading to opposite trends in the two variables. Hence, urban stations are prone to have lower trends in absolute value than rural ones. Therefore, regional data sets including records from urban locations, in addition to urban growth bias may have a second type of urban bias associated with temperature trends. A bulk estimate of this second urban bias trend for the contiguous United States during 1901-1984 indicates that it could be of the same order as the urban growth bias and of opposite sign. If these results could be extended to global data, it could be expected that the spurious influence of urban growth on global temperature trends during warming periods will be offset by the diminishing of the urban heat island intensity.
Referencias:
- Ackerman, B., Temporal March of the Chicago Heat Island (1985) J. Clim. Appl. Meteorol., 24, pp. 547-554
- Balling, R.C., Idso, S.B., Historical Temperature Trends in the United Sates and the Effect of Urban Population Growth (1989) J. Geophys. Res., 94, pp. 3359-3363
- Barros, V., Camilloni, I., Urban Biased Trends in Buenos Aires' Mean Temperature (1994) Clim. Res., 4, pp. 33-45
- Camilloni, I., Barros, V., Influencia de la Isla Urbana de Calor en la Estimación de las Tendencias Seculares de la Temperatura en Argentina Subtropical (1995) Geofísica International, 34, pp. 161-170
- Chandler, T.J., London's Urban Climate (1962) Geogr. J., 127, pp. 279-302
- Chandler, T.J., (1965) The Climate of London, p. 292. , Hutchinson & Co., London
- Colacino, M., Rovelli, A., The Yearly Averaged Air Temperature in Rome from 1782 to 1975 (1983) Tellus, 35 A, pp. 389-397
- Coughlan, M., Tapp, R., Kininmonth, W., Trends in Australian Temperature Records (1989) Observed Climate Variations and Change: Contributions in Support of Section 7 of the 1990 IPCC Scientific Assessment, pp. 1-28. , Intergovernmental Panel on Climate Change
- Godowitch, J.M., Ching, J.K.S., Clarke, J.F., Evolution of the Nocturnal Inversion Layer at an Urban and Nonurban Location (1985) J. Clim. Appl. Meteorol., 24, pp. 791-804
- Hansen, J., Lebedeff, S., Global Trends of Measured Surface Air Temperature (1987) J. Geophys. Res., 92, pp. 13345-13372
- Holzworth, G., Climatological Aspects of the Composition and Pollution of the Atmosphere (1974) WMO Tech. Note No. 139, p. 43
- Jones, P.D., Southern Hemisphere Temperatures (1985) Climate Monitor, 14, pp. 132-140
- Jones, P.D., Hemispheric Surface Air Temperature Variations: Recent Trends and an Update to 1987 (1988) J. Clim., 1, pp. 654-660
- Jones, P.D., Raper, S.C., Wigley, T.M., Southern Hemisphere Surface Air Temperature Variations: 1851-1984 (1986) J. Clim. Appl. Meteorol., 25, pp. 1215-1230
- Jones, P.D., Wigley, T.M., Wright, P.B., Global Temperature Variations 1861-1984 (1986) Nature, 322, pp. 430-434
- Jones, P.D., Kelly, P.M., Goodess, C.M., Karl, T.R., The Effect of Urban Warming on the Northern Hemisphere Temperature Average (1989) J. Clim., 2, pp. 285-290
- Jones, P.D., Raper, S.C., Bradley, R.S., Diaz, H.F., Kelly, P.M., Wigley, T.M., Northern Hemisphere Surface Air Temperature Variations: 1851-1984 (1986) J. Clim. Appl. Meteorol., 25, pp. 161-179
- Jones, P.D., Groisman, P.Ya., Coughlan, M., Plummer, N., Wang, W.C., Karl, T.R., Assessment of Urbanization Effects in Time Series of Surface Air Temperature over Land (1990) Nature, 347, pp. 169-172
- Jones, P.D., Raper, S.C.B., Cherry, B.S.G., Goodess, C.M., Wigley, T.M.L., Santer, B., Kelly, P.M., Diaz, H.F., (1991) An Updated Global Grid Point Surface Air Temperature Anomaly Data Set: 1851-1990, p. 251. , Environmental Sciences Division, Publication No. 3520
- Karl, T.R., Jones, P.D., Urban Bias in Area-Averaged Surface Air Temperature Trends (1989) Bull. Amer. Meteorol. Soc., 70, pp. 265-270
- Karl, T.R., Baldwin, R.G., Burgin, M.G., Time Series of Regional Averages of Maximum, Minimum and Average Temperature and Diurnal Temperature Range Across the United States: 1901-1984 (1988) Hist. Climatol. Ser., 4-5. , Ashville, National Climatic Data Center
- Karl, T.R., Diaz, H.F., Kukla, G., Urbanization: Its Detection and Effect in the United States Climate Record (1988) J. Clim., 1, pp. 1099-1123
- Kukla, G., Gavin, J., Karl, T.R., Urban Warming (1986) J. Clim. Appl. Meteorol., 25, pp. 1265-1270
- Lee, D.O., Rural Atmospheric Stability and the Intensity of London's Heat Island (1975) Weather, 30, pp. 102-109
- Lowry, W.P., Empirical Estimation of Urban Effects on Climate: A Problem Analysis (1977) J. Appl. Meteorol., 16, pp. 124-135
- Mazzeo, N.A., Gassmann, M.I., Mixing Heights and Wind Direction Analysis for Urban and Suburban Areas of Buenos Aires City (1990) Energy Buildings, 15-16, pp. 333-337
- Mitchell, J.M., The Temperature of Cities (1961) Weatherwise, 14, pp. 224-229
- Moreno Garcia, M.C., Intensity and Form of the Urban Heat Island in Barcelona (1994) Int. J. Clim., 14, pp. 705-710
- Oke, T.R., City Size and the Urban Heat Island (1973) Atmos. Environ., 7, pp. 769-779
- Oke, T.R., Review of Urban Climatology (1979) WMO Tech. Note No. 169, p. 100
- Oke, T.R., The Energetic Basis of the Urban Heat Island (1982) Quart. J. Roy. Meteorol. Soc., 108, pp. 1-24
- Quinlan, F.T., Karl, T.R., Williams Jr., C.N., United States Historical Climatology Network (HCN) Serial Temperature and Precipitation Data, NDP-019 (1987) Carbon Dioxide Inf. Anal. Cent., p. 33. , Oak Ridge Natl. Lab., Oak Ridge, Tenn
- Scian, B.V., Quinteros, S.R., Capa de Mezcla en la Ciudad de Buenos Aires (1975) Meteorológica, 6-7, pp. 145-156
- Vinnikov, K.Ya., Groisman, P.Ya., Lugina, K.M., The Empirical Data on Modern Global Climate Changes (Temperature and Precipitation) (1990) J. Clim., 3, pp. 662-677
- Wigley, T.M., Jones, P.D., Do Large-Area Average Temperature Series Have an Urban Warming Bias? (1988) Clim. Change, 12, pp. 313-319. , Response to the manuscript by F. B. Wood
- Wood, F.B., Comment: On the Need for Validation of the Jones et al. Temperature Trends with Respect to Urban Warming (1988) Clim. Change, 12, pp. 297-312
Citas:
---------- APA ----------
Camilloni, I. & Barros, V.
(1997)
. On the urban heat island effect dependence on temperature trends. Climatic Change, 37(4), 665-681.
http://dx.doi.org/10.1023/A:1005341523032---------- CHICAGO ----------
Camilloni, I., Barros, V.
"On the urban heat island effect dependence on temperature trends"
. Climatic Change 37, no. 4
(1997) : 665-681.
http://dx.doi.org/10.1023/A:1005341523032---------- MLA ----------
Camilloni, I., Barros, V.
"On the urban heat island effect dependence on temperature trends"
. Climatic Change, vol. 37, no. 4, 1997, pp. 665-681.
http://dx.doi.org/10.1023/A:1005341523032---------- VANCOUVER ----------
Camilloni, I., Barros, V. On the urban heat island effect dependence on temperature trends. CLIM. CHANGE. 1997;37(4):665-681.
http://dx.doi.org/10.1023/A:1005341523032