Open AccessEarly detection of the distribution of heat stress hazards for sustainable land use planning In Padang City
Author(s) -
Dwi Marsiska Driptufany,
Fajrin
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/708/1/012059
Subject(s) - urban heat island , radiance , environmental science , heat stress , climate change , spatial distribution , heat index , atmospheric sciences , meteorology , physical geography , geography , remote sensing , geology , oceanography
The focus of this research is to analyze the spatial distribution of heat hazards caused by urban heat island (UHI) events over a 10-year observation period. Land surface temperature in 2007 is extracted from Landsat 7 ETM + to convert the value of Digital Number (DN) on the band 6 into radiance. Land surface temperatures in 2013 and 2017 were extracted from Landsat 8 OLI / TIRS imagery with the initial step of the Digital Number (DN) band 10 being converted to spectral radiance. As for the analysis of the heat stress hazard area is done by connecting the land surface temperature with the Universal Thermal Climate Index value. The Universal Thermal Climate Index from 2007 to 2017 shows that the city’s heat stress is increasing every year in observation, where in 2007 the heat stress was in the range of moderate heat stress (2,960.87 Ha). Whereas for 2013 the heat stress increased to strong heat stress reaching 34.35 ° C with an area of 77.50 Ha. In contrast to 2013, in 2017 strong heat stress increased significantly to 2,100.81 Ha where heat stress reached a peak of 35.92ºC which is spread in almost all districts with concentrations close to the city center in addition to dense residential areas as well seen in industrial areas (semen padang), this change is in line with the development of the city area.