River effects on the heat island of a small urban area

Moyer, Ashley; Hawkins, Timothy W.

doi:10.1016/j.uclim.2017.07.004

Cited by 58 publications

(34 citation statements)

References 25 publications

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“…We cannot be sure that all cooling from the garden site was attributed to elevated ET in the garden itself; other factors, such as nearby tree cover or proximity to the Mississippi River may have also contributed to cooling. One study found cooling effects extending up to 300m from a large river [19], but other studies have found more limited [20] or no [21] cooling effects of rivers. While our study has only two spatial data points, a spatially-intensive study in the Minneapolis-Saint Paul Metropolitan Area using 170 sensors shows that both the UST research garden and the MSP airport are well within the UHI zone [22], experiencing summer daytime mean temperatures approximately 1.0°C higher than surrounding rural areas.…”

Section: Evapotranspiration Measurementsmentioning

confidence: 99%

Urban Heat Island Mitigation Due to Enhanced Evapotranspiration in an Urban Garden in Saint Paul, Minnesota, Usa

Small

Jimenez

Salzl

et al. 2020

WIT Transactions on Ecology and the Environment

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As a result of extensive urban development coupled with warming temperatures, urban heat islands (UHI) have become an important factor affecting energy consumption and human health in cities. Prior research has shown that evapotranspiration (ET) from urban vegetation can have a significant cooling effect, but there are relatively few direct measurements from urban vegetable gardens. We compared hourly temperature measurements during two summers (2017 and 2018) in a 750 m 2 research garden at the University of St. Thomas (Saint Paul, Minnesota, USA) to hourly temperatures at the nearby Minneapolis-Saint Paul (MSP) International Airport, located 6 km to the south. We also quantified seasonal ET (June-October) in 132 garden plots and five reference turfgrass plots during the summers of 2017 and 2018. For both years, an increase in temperature of 1.00°C at the MSP airport resulted in an average increase of 0.55°C in the research garden. At temperatures greater than 22°C, the garden was cooler on average compared to MSP airport. ET in the garden plots was significantly higher than in the grass reference plots both years, with means of 46 cm for garden plots compared to 19 cm for grass plots in 2017, and 51 cm for garden plots compared to 33 cm for grass plots in 2018. These results are consistent with other research showing potentially large benefits of cooling through ET from urban gardens that are primarily aimed at crop production.

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Section: Evapotranspiration Measurementsmentioning

confidence: 99%

Urban Heat Island Mitigation Due to Enhanced Evapotranspiration in an Urban Garden in Saint Paul, Minnesota, Usa

Small

Jimenez

Salzl

et al. 2020

WIT Transactions on Ecology and the Environment

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show abstract

“…There is an extensive body of literature on the available strategies to reduce the UHI effect (Aflaki et al., 2017; Rosenfeld et al., 1998; Azevedo and Leal, 2017; EPA, 2008; Wang et al., 2016; Huang et al., 1990). In general, the methods currently available for this purpose can be categorized into four groups: the use of vegetation cover like trees, shrubs and lawns at different scales (Gago et al., 2013; Mackey et al., 2012), the stack night ventilation (Kolokotroni et al., 2006), the use of waterbodies (Gunawardena et al., 2017; Moyer and Hawkins, 2017; Daniel et al., 2018), and the use of materials with high albedo rating for pavement and other ground surfaces (Pacheco-Torgal, 2015; Santamouris, 2013; Li et al., 2013a,b; Taha et al., 1988).…”

Section: Introductionmentioning

confidence: 99%

Urban green space cooling effect in cities

Aram

García

Solgi

et al. 2019

Heliyon

415

168

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Urban green spaces are considered an appropriate way to reduce urban heat island effects and provide comfort to the nearby occupants. In addition to cooling the actual space, urban green spaces are also able to influence the surrounding area, and this phenomenon is called the urban green space cooling effect. The most important issues with regard to the cooling effects of urban green spaces are the intensity and density of the cooling, which can play a major role for urban designers and planners in dealing with urban heat island. This article reviews the latest studies that have examined the cooling effects of urban green spaces in recent years. Based on the method of evaluation of their samples, the studies are divided into three groups. The first category consists of research into a set of urban green spaces in one part of or in an entire city, mainly conducted through remote sensing and satellite maps. The second category investigates city parks or several urban parks with recognizable shapes and locations. In this section, information was mainly gathered by virtue of field observations. The third category relates to studies in which a part of urban space according to different scenarios of green space placement was modeled by simulation. The results of the present study illustrate that the highest cooling effect distance and cooling effect intensity are for large urban parks with an area of more than 10 ha; however, in addition to the area, the natural elements and qualities of the urban green spaces, as well as climate characteristics, highly inform the urban green space cooling effect.

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“…En cuanto a la lejanía de la costa, se confirmó la influencia que tiene el Mar Menor sobre la reducción de las TS de la comarca agraria. Este resultado ha sido contrastado en el estudio de la isla de calor urbana, comprobándose como los cuerpos de agua reducen las temperaturas en superficie (Acero et al, 2013;Moyer & Hawkins, 2017;Cai et al, 2018). Sin embargo, apenas hay trabajos que hayan considerado esta variable en el caso de ecosistemas agrarios (Cheval & Constantin, 2018).…”

Section: Factores Explicativos De La Tsunclassified

El regadío y su influencia en la regulación local de temperaturas en superficie en la citricultura mediterránea

Albaladejo-García¹,

Alcón

Martínez‐Paz³

2021

Rev. geogr. Norte Gd.

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El efecto frío del regadío, dada su influencia en la temperatura de la superficie terrestre (TS), es uno de los servicios ecosistémicos de regulación de los ecosistemas agrarios. En la agricultura de regadío de zonas cálidas este servicio juega un papel destacado al amortiguar los extremos de temperatura. El objetivo de este trabajo es cuantificar y determinar los factores que explican el comportamiento de la TS en áreas de regadío, utilizando como caso de estudio el agroecosistema del cultivo de cítricos en regadío del Campo de Cartagena (Murcia, España). En primer lugar, se demuestra la influencia del regadío en la TS de la zona. Posteriormente se explica el valor de la TS en los regadíos mediante un modelo que relaciona la misma con el índice de vegetación, el contenido de agua del cultivo y la lejanía a la costa. Estos resultados ponen de manifiesto la generación del servicio ecosistémico de regulación climática por los cítricos en regadío.

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River effects on the heat island of a small urban area

Cited by 58 publications

References 25 publications

Urban Heat Island Mitigation Due to Enhanced Evapotranspiration in an Urban Garden in Saint Paul, Minnesota, Usa

Urban Heat Island Mitigation Due to Enhanced Evapotranspiration in an Urban Garden in Saint Paul, Minnesota, Usa

Urban green space cooling effect in cities

El regadío y su influencia en la regulación local de temperaturas en superficie en la citricultura mediterránea

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