Thermal Infrared Images to Identify the Contribution of Surface Materials to the Canopy Layer Heat Island in Hot-Humid Urban Areas
| Autor: | Pranowo Pranowo, Soesilo Boedi Leksono, Floriberta Binarti |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Surface (mathematics)
Canopy Thermal infrared 010504 meteorology & atmospheric sciences Renewable Energy Sustainability and the Environment surface materials 0211 other engineering and technologies TJ807-830 02 engineering and technology Atmospheric sciences surface temperature 01 natural sciences Renewable energy sources air temperature Air temperature Environmental science 021108 energy Urban heat island canopy layer heat island (clhi) Layer (electronics) land surface temperature (lst) 0105 earth and related environmental sciences General Environmental Science |
| Zdroj: | Environmental and Climate Technologies, Vol 24, Iss 1, Pp 604-623 (2020) |
| ISSN: | 2255-8837 |
| Popis: | This study presents a combination technique of thermal infrared images captured by infrared camera and satellite thermal images retrieved from Landsat-8 OLI TIRS to identify the contribution of vertical and horizontal surface materials in two hot-humid street canyons with similar sky view factor and street orientation. The infrared camera captures surface temperature images of vertical and inclined surfaces of the street canyons. The images at horizontal scale are derived based on six land cover indices – i.e., Land Surface Temperature (LST), surface albedo, thermal emissivity, Normalized Different Vegetation Index (NDVI), Normalized Different Built Area Index (NDBI), Normalized Different Water Index (NDWI) – using an image processing technique conducted in ArcGIS. This study used two micro weather stations to measure microclimate conditions depicting the Canopy Layer Heat Island (CLHI) of the canyons at the same time. Despite the capability of the combined technique to identify the contribution of surface materials to the LST, different radiative and thermal properties of the surface materials insignificantly modified the CLHI. |
| Databáze: | OpenAIRE |
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