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Radiation, evapotranspiration, and roughness effects of urban trees on local microclimate: A modelling study
(2020)EGUsphereThe increase in urban air temperature caused by urban heat and climate change can have negative effects on the outdoor thermal comfort (OTC) as well as on the energy demand for air-conditioning. Nature-based solutions, such as the increase in urban biomass, are often proposed to mitigate excessive urban heat. Trees are expected to decrease temperatures due to shade provision on surfaces and evapotranspiration but their canopy blocks wind ...Other Conference Item -
Intensification of sub-daily rainfall extremes in a low-rise urban area
(2022)Urban ClimateShort-duration extreme rainfall events are the main trigger of flash and pluvial floods in cities. Depending on the local climate zone and urban fabric that affect meteorological variables such as air temperature, humidity, and aerosol concentration, the built environment can either intensify or reduce extreme rainfall intensity. This study examined how urbanization in a large metropolitan area characterized by open low-rise buildings, ...Journal Article -
An urban ecohydrological model to quantify the effect of vegetation on urban climate and hydrology (UT&C v1.0)
(2019)Geoscientific Model Development DiscussionsIncreasing urbanization is likely to intensify the urban heat island effect, decrease outdoor thermal comfort and enhance runoff generation in cities. Urban green spaces are often proposed as a mitigation strategy to counteract these adverse effects and many recent developments of urban climate models focus on the inclusion of green and blue infrastructure to inform urban planning. However, many models still lack the ability to account ...Working Paper -
An ecohydrological journey of 4500 years reveals a stable but threatened precipitation–groundwater recharge relation around Jerusalem
(2021)Science AdvancesGroundwater is a key water resource in semiarid and seasonally dry regions around the world, which is replenished by intermittent precipitation events and mediated by vegetation, soil, and regolith properties. Here, a climate reconstruction of 4500 years for the Jerusalem region was used to determine the relation between climate, vegetation, and groundwater recharge. Despite changes in air temperature and vegetation characteristics, ...Journal Article -
Urban Forests as Main Regulator of the Evaporative Cooling Effect in Cities
(2021)AGU AdvancesHigher temperatures in urban areas expose a large fraction of the human population to potentially dangerous heat stress. Green spaces are promoted worldwide as local and city-scale cooling strategies but the amount, type, and functioning of vegetation in cities lack quantification and their interaction with urban climate in different settings remains a matter of debate. Here we use state-of-the-art remote sensing data from 145 city clusters ...Journal Article -
An urban ecohydrological model to quantify the effect of vegetation on urban climate and hydrology (UT&C v1.0)
(2020)Geoscientific Model DevelopmentIncreasing urbanization is likely to intensify the urban heat island effect, decrease outdoor thermal comfort, and enhance runoff generation in cities. Urban green spaces are often proposed as a mitigation strategy to counteract these adverse effects, and many recent developments of urban climate models focus on the inclusion of green and blue infrastructure to inform urban planning. However, many models still lack the ability to account ...Journal Article -
Tree effects on urban microclimate: diurnal, seasonal, and climatic temperature differences explained by separating radiation, evapotranspiration, and roughness effects
(2021)Urban Forestry & Urban GreeningIncreasing urban tree cover is an often proposed mitigation strategy against urban heat as trees are expected to cool cities through evapotranspiration and shade provision. However, trees also modify wind flow and urban aerodynamic roughness, which can potentially limit heat dissipation. Existing studies show a varying cooling potential of urban trees in different climates and times of the day. These differences are so far not systematically ...Journal Article -
Ecohydrological changes after tropical forest conversion to oil palm
(2018)Environmental Research LettersGiven their ability to provide food, raw material and alleviate poverty, oil palm (OP) plantations are driving significant losses of biodiversity-rich tropical forests, fuelling a heated debate on ecosystem degradation and conservation. However, while OP-induced carbon emissions and biodiversity losses have received significant attention, OP water requirements have been marginalized and little is known on the ecohydrological changes (water ...Journal Article -
The signature of background climate and population on urban heat islands worldwide
(2019)Geophysical Research AbstractsOther Conference Item -
Vegetation cover and plant-trait effects on outdoor thermal comfort in a tropical city
(2021)Building and EnvironmentJournal Article