Analysis of the Urban Energy Balance in Bahía Blanca (Argentina)
| Autor: | María Eugenia Fernández, Natasha Picone, Jorge Osvaldo Gentili, Alicia María Campo |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Atmospheric Science
geography geography.geographical_feature_category 010504 meteorology & atmospheric sciences Geography Planning and Development Energy balance Estuary 010501 environmental sciences Environmental Science (miscellaneous) Sensible heat Atmospheric sciences Urban area Spatial distribution 01 natural sciences Urban Studies Atmosphere Latent heat Environmental science Bowen ratio 0105 earth and related environmental sciences |
| Zdroj: | Urban Climate. 37:100856 |
| ISSN: | 2212-0955 |
| Popis: | The objective of this study is to define the effect of Bahia Blanca (Argentina) urban form and function on heat fluxes integrated in its energy balance at a local scale. The most frequent Local Climate Zones (LCZs) were identified in Bahia Blanca. Most of the LCZs are built types, corresponding to LCZ 1 and 2 in the microcenter, LCZ 3 in the macrocenter, and LCZ 6 and 9 in the city peri-urban area. The spatial distribution of Urban Energy Balance (UEB) was analyzed by calculating indices: the sensible heat index (χ), the evaporation index (γ), the storage index (Λ) and Bowen ratio (β). In the city central sectors there is a preponderance of sensible heat fluxes warming the atmosphere closest to the surface. Bahia Blanca estuary has the highest latent heat flux magnitudes, followed by coastal areas and islands associated. Peri-urban land surfaces and suburbs have greater magnitudes of latent heat flux since they are composed of a high percentage of permeable surfaces. A marked variability is observed in the daytime and nighttime QF anthropogenic heat fluxes, with maximums during the day. During the night, QF values decrease in magnitude throughout the urban area. |
| Databáze: | OpenAIRE |
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