This map derives from the Global Urban Heat Island (UHI) Data Set, 2013. This estimates the average summer night minimum land surface temperature within urban areas in degrees Celsius, as well as the difference between those temperatures and the temperatures in surrounding rural areas, defined as a 10km buffer around the urban extent. The Global Urban Heat Island (UHI) Data Set, 2013, part of the Satellite-Derived Environmental Indicators collection, estimates the average land surface temperature within urban areas in degrees Celsius (summer daytime maximum and nighttime minimum), as well as the difference between those temperatures and the temperatures in surrounding rural areas, defined as a 10km buffer around the urban extent. Urban extents are taken from SEDAC's Global Rural-Urban Mapping Project, Version 1 (GRUMPv1), and land surface temperatures are taken from SEDAC's Global Summer Land Surface Temperature (LST) Grids, 2013, which are derived from the Aqua Level-3 Moderate Resolution Imaging Spectroradiometer (MODIS) Version 5 global daytime and nighttime LST 8-day composite data (MYD11A2).

Source: CIESIN,Columbia University. 2016

This map derives from the Global Urban Heat Island (UHI) Data Set, 2013. This estimates the average summer daytime maximum land surface temperature within urban areas in degrees Celsius, as well as the difference between those temperatures and the temperatures in surrounding rural areas, defined as a 10km buffer around the urban extent. Urban extents are taken from SEDAC's Global Rural-Urban Mapping Project, Version 1 (GRUMPv1), and land surface temperatures are taken from SEDAC's Global Summer Land Surface Temperature (LST) Grids, 2013, which are derived from the Aqua Level-3 Moderate Resolution Imaging Spectroradiometer (MODIS) Version 5 global daytime and nighttime LST 8-day composite data (MYD11A2).

Source: CIESIN,Columbia University. 2016