Person

Steffen Lehmann

Journal article

Correlation analysis of surface temperature of rooftops and streetscapes and urban heat island effect: case study of central Sydney

Cities are frequently experiencing artificial heat stress, known as the Urban Heat Island (UHI) effect. The UHI effect is commonly present in cities due to increased urbanization, where anthropogenic heat and human modifications have altered the characteristics of surfaces and atmosphere. Urban structure, land cover...
Conference paper

Thermal resilience of activity patterns and urban greenery in public space: three case studies in Adelaide, South Australia

Australia has had seven extreme heatwaves since the beginning of the 20th century. During heatwaves, public spaces in cities are frequently warmer than is confortable for humans. The regional warming projection of 2-5°C in Australia (by 2070) will be added to an existing 4-8°C extra...
Journal article

Comparative analysis of surface urban heat island effect in central Sydney

The Urban Heat Island (UHI) effect can result in higher urban densities being significantly hotter (frequently more than 4 °C, even up to 10 °C) compared to their peri-urban surroundings. Such artificial heat stress increases the health risk of spending time outdoors and boosts the...
Journal article

Local measures to mitigate the urban heat island effect in hot and humid climate: comparative case study of Sana’a, Bushehr and Dubai Marina

Cities experience the effect of extra heat compared to their rural surroundings. This phenomenon is known as the Urban Heat Island (UHI) effect. Urban geometry, land cover, landscape and metabolism have been cited as the main contributors to the UHI effect. This paper compares the...
Journal article

Supporting urban planning of low-carbon precincts: integrated demand forecasting

This paper outlines an on-going interdisciplinary research project entitled “Integrated ETWW demand forecasting and scenario planning for low-carbon precincts” and reports on first findings and a literature review.