Comparison of the radiation balance of a rooftop lawn with that of a conventional rooftop surface

Jones, Charles; Suckling, Ph. W.

doi:10.1007/bf02273991

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…In contrast, Suckling (1980) found Q E ≈ 0.65Q * for a suburban lawn, similar to moist rural surfaces, for an environment in which advection was less likely. Contrasts in the energy balances of rooftop lawns and a conventional tar-gravel roof were found by Jones and Suckling (1983) to suppress surface heating greatly. Kjelgren and Montague (1998) used a two-layer canopy model to evaluate the role of the ground surface type (asphalt or turfgrass) in controlling Q E for trees.…”

Section: Urban Facet Energy Balancementioning

confidence: 95%

Two decades of urban climate research: a review of turbulence, exchanges of energy and water, and the urban heat island

Arnfield

2003

Intl Journal of Climatology

2,834

1,518

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Progress in urban climatology over the two decades since the first publication of the International Journal of Climatology is reviewed. It is emphasized that urban climatology during this period has benefited from conceptual advances made in microclimatology and boundary-layer climatology in general. The role of scale, heterogeneity, dynamic source areas for turbulent fluxes and the complexity introduced by the roughness sublayer over the tall, rigid roughness elements of cities is described. The diversity of urban heat islands, depending on the medium sensed and the sensing technique, is explained. The review focuses on two areas within urban climatology. First, it assesses advances in the study of selected urban climatic processes relating to urban atmospheric turbulence (including surface roughness) and exchange processes for energy and water, at scales of consideration ranging from individual facets of the urban environment, through streets and city blocks to neighbourhoods. Second, it explores the literature on the urban temperature field. The state of knowledge about urban heat islands around 1980 is described and work since then is assessed in terms of similarities to and contrasts with that situation. Finally, the main advances are summarized and recommendations for urban climate work in the future are made.

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Section: Urban Facet Energy Balancementioning

confidence: 95%

Two decades of urban climate research: a review of turbulence, exchanges of energy and water, and the urban heat island

Arnfield

2003

Intl Journal of Climatology

2,834

1,518

View full text Add to dashboard Cite

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“…In the first, the city (41 ON, 2 "E) was divided into six types of terrain : trees, asphalt, light-coloured buildings, dark-coloured buildings, grass, and bare ground. Buildings covered by uralite or fibrecement are light coloured whereas dark colours correspond to roofs covered by gravel or red tile (Jones and Suckling, 1983).…”

Section: Ideal Albedomentioning

confidence: 99%

Urban albedo derived from direct measurements and landsat 4 TM satellite data

Soler

Ruiz

1994

Intl Journal of Climatology

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The main aim of this study is to examine the effect of urban structure on the albedo value. The urban area chosen for this study was Barcelona. On the basis of measurements made in July 1989, and without consideration of the urban structure, the albedo values of various urban structures was determined.Simultaneously, from analysis of Landsat 4 TM images, thus taking account of the urban effect, a method for the calculation of albedo was developed. These results are compared.KEY WORDS Remote sensing Albedo Urban effect

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“…20) concluded that 'basically the field remains poorly researched'. Since that time a number of urban evaporation studies have appeared in the literature (e.g., Morton, 1978;Oke, 1979b;Kalanda et al, 1980;Suckling, 1980;Jones and Suckling, 1983;Oke and McCaughey, 1983;Cleugh and Oke, 1986;Grimmond and Oke, 1986;Grimmond et al 1986). Major conclusions from these articles include (a) with the development of urbanized landscapes and associated changes in the surface energy balance, the potential evapotranspiration within a city should increase, (b) the wide variety of urban surfaces (Marotz and Coiner, 1973) can increase the role of advection in 0196-1748/87/060593-06%05.00 0 1987 by the Royal Meteorological Society accelerating actual and/or potential evapotranspiration rates, and (c) evapotranspiration from irrigated surfaces within urban areas was generally underestimated in earlier research.…”

Section: Introductionmentioning

confidence: 99%

The impact of rapid urbanization on pan evaporation in phoenix. Arizona

Balling

Brazel

1987

J. Climatol.

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Rapid urbanization in Phocnix, Arizona over the past few decades has been associated with large increases in local temperature and wind speed values, and decreases in local dew point and relative humidity levels. In this study, the impact of these urban-induced climatic changes on long-term pan evaporation rates is identified. The results indicate an increase from 1917 to 1985 in the local pan evaporation in all months of the year. Following a long period of generally increasing pan evaporation levels, a sharp jump in the pan measurements occurred in the late 1960s. This pronounced discontinuity in the long-term record appears to be associated with the construction of a nearby regional shopping centre in 1968. Given widespread similar land-use changcs throughout this rapidly growing descrt city, and given the well-documented changcs in local climatic conditions, potential evapotranspiration increases are probably occurring throughout much of the metropolitan area.

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Comparison of the radiation balance of a rooftop lawn with that of a conventional rooftop surface

Cited by 5 publications

References 12 publications

Two decades of urban climate research: a review of turbulence, exchanges of energy and water, and the urban heat island

Two decades of urban climate research: a review of turbulence, exchanges of energy and water, and the urban heat island

Urban albedo derived from direct measurements and landsat 4 TM satellite data

The impact of rapid urbanization on pan evaporation in phoenix. Arizona

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