Urban heat islands (UHI) represent increase of temperature inside cities in regard to their rural environment. Causes formation are diverse and multiple: reduced amount vegetation waterproofing surfaces, changed radiation thermal characteristics materials, urban geometry. Consequences also significant: increasing consumption energy for cooling, negative impact on human health, deterioration air...

This study compared the diurnal and seasonal cycles of atmospheric and surface urban heat islands (UHIs) based on hourly air temperatures (Ta) collected at 65 out of 262 stations in Beijing and land surface temperature (Ts) derived from Moderate Resolution Imaging Spectroradiometer in the years 2013–2014. We found that the nighttime atmospheric and surface UHIs referenced to rural cropland stat...

Mobile traverses were used to conduct air temperature observations to clarify the effect of land cover on ambient air temperatures. The study area was located in a suburb of the Tokyo metropolitan area, Japan. The mobile traverses were conducted at 2 h intervals between 10:00 h on one day and 08:00 h the next day, on selected days from October 2006 to March 2008, for a total of 30 d. We observe...

In recent years, SUHIs (surface urban heat islands) have been greatly emphasized in urban climate studies, since it is one of the climate phenomena most influenced by human action. In this study, temporal and spatial variations of SUHIs in the cities of Ceres and Rialma (Brazil) were investigated; satellite Landsat 8 TIRS/OLI images from 2013 to 2016 were used for this purpose. The results show...

Current characterization of the Urban Heat Island (UHI) remains insufficient to support the effective mitigation and adaptation of increasing temperatures in urban areas. Planning and design strategies are restricted to the investigation of temperature anomalies at a city scale. By focusing on Land Surface Temperature of Wuhan, China, this research examines the temperature variations locally wh...

Several indices, including the normalized difference vegetation index (NDVI), normalized difference build-up index (NDBI), and normalized difference water index (NDWI), were retrieved from the Landsat 5 Thematic Mapper (TM) images, and the land surface temperature (LST) was reversed by the thermal radiation transfer model. Next, with the help of the thermal field variance index from LST, charac...