Temporal variability of the Buenos Aires, Argentina, urban heat island

This paper describes the statistical characteristics and temporal variability of the urban heat island (UHI) intensity in Buenos Aires using 32-year surface meteorological data with 1-h time intervals. Seasonal analyses show that the UHI intensity is strongest during summer months and an "inver...

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Autores principales: Camilloni, I., Barrucand, M.
Formato: JOUR
Materias:
air temperature
annual variation
atmospheric circulation
diurnal variation
heat island
seasonal variation
statistical analysis
temporal variation
Argentina
Buenos Aires [Argentina]
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_0177798X_v107_n1-2_p47_Camilloni
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_0177798X_v107_n1-2_p47_Camilloni
record_format dspace
spelling todo:paper_0177798X_v107_n1-2_p47_Camilloni2023-10-03T15:08:09Z Temporal variability of the Buenos Aires, Argentina, urban heat island Camilloni, I. Barrucand, M. air temperature annual variation atmospheric circulation diurnal variation heat island seasonal variation statistical analysis temporal variation Argentina Buenos Aires [Argentina] This paper describes the statistical characteristics and temporal variability of the urban heat island (UHI) intensity in Buenos Aires using 32-year surface meteorological data with 1-h time intervals. Seasonal analyses show that the UHI intensity is strongest during summer months and an "inverse" effect is found frequently during the afternoon hours of the same season. During winter, the UHI effect is in the minimal. The interannual trend and the seasonal variation of the UHI for the main synoptic hours for a longer record of 48 years are studied and associated to changes in meteorological factors as low-level circulation and cloud amount. Despite the population growth, it was found a negative trend in the nocturnal UHI intensity that could be explained by a decline of near clear-sky conditions, a negative trend in the calm frequencies and an increase in wind speed. Urban to rural temperature differences and rural temperatures are negatively correlated for diurnal and nocturnal hours both for annual and seasonal scales. This result is due to the lower interannual variability of urban temperatures in comparison to rural ones. © 2011 Springer-Verlag. Fil:Camilloni, I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Barrucand, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0177798X_v107_n1-2_p47_Camilloni
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic air temperature
annual variation
atmospheric circulation
diurnal variation
heat island
seasonal variation
statistical analysis
temporal variation
Argentina
Buenos Aires [Argentina]
spellingShingle air temperature
annual variation
atmospheric circulation
diurnal variation
heat island
seasonal variation
statistical analysis
temporal variation
Argentina
Buenos Aires [Argentina]
Camilloni, I.
Barrucand, M.
Temporal variability of the Buenos Aires, Argentina, urban heat island
topic_facet air temperature
annual variation
atmospheric circulation
diurnal variation
heat island
seasonal variation
statistical analysis
temporal variation
Argentina
Buenos Aires [Argentina]
description This paper describes the statistical characteristics and temporal variability of the urban heat island (UHI) intensity in Buenos Aires using 32-year surface meteorological data with 1-h time intervals. Seasonal analyses show that the UHI intensity is strongest during summer months and an "inverse" effect is found frequently during the afternoon hours of the same season. During winter, the UHI effect is in the minimal. The interannual trend and the seasonal variation of the UHI for the main synoptic hours for a longer record of 48 years are studied and associated to changes in meteorological factors as low-level circulation and cloud amount. Despite the population growth, it was found a negative trend in the nocturnal UHI intensity that could be explained by a decline of near clear-sky conditions, a negative trend in the calm frequencies and an increase in wind speed. Urban to rural temperature differences and rural temperatures are negatively correlated for diurnal and nocturnal hours both for annual and seasonal scales. This result is due to the lower interannual variability of urban temperatures in comparison to rural ones. © 2011 Springer-Verlag.
format JOUR
author Camilloni, I.
Barrucand, M.
author_facet Camilloni, I.
Barrucand, M.
author_sort Camilloni, I.
title Temporal variability of the Buenos Aires, Argentina, urban heat island
title_short Temporal variability of the Buenos Aires, Argentina, urban heat island
title_full Temporal variability of the Buenos Aires, Argentina, urban heat island
title_fullStr Temporal variability of the Buenos Aires, Argentina, urban heat island
title_full_unstemmed Temporal variability of the Buenos Aires, Argentina, urban heat island
title_sort temporal variability of the buenos aires, argentina, urban heat island
url http://hdl.handle.net/20.500.12110/paper_0177798X_v107_n1-2_p47_Camilloni
work_keys_str_mv AT camillonii temporalvariabilityofthebuenosairesargentinaurbanheatisland
AT barrucandm temporalvariabilityofthebuenosairesargentinaurbanheatisland
_version_ 1807316552090910720

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