Assessing the relationship between sky view factor and land surface temperature to the spatial resolution
| Autor: | M. Scarano, Francesco Mancini |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Daytime
010504 meteorology & atmospheric sciences Land surface temperature 0211 other engineering and technologies Urban morphology Humidity 02 engineering and technology Sky view factor. LST Landsat spatial resolution 01 natural sciences General Earth and Planetary Sciences Environmental science Satellite imagery Urban heat island Image resolution 021101 geological & geomatics engineering 0105 earth and related environmental sciences Street canyon Remote sensing |
| Zdroj: | International Journal of Remote Sensing. 38:6910-6929 |
| ISSN: | 1366-5901 0143-1161 |
| DOI: | 10.1080/01431161.2017.1368099 |
| Popis: | This article compares the land surface temperature (LST) and sky view factor (SVF) as indicator of the impact of urban morphology on the urban heat island effect. For this purpose, the work investigates the dependence of this relationship to spatial resolutions varying from coarse to very fine and related scaling effect. For this purpose, several daytime Landsat 8, Advanced Spaceborne Thermal Emission and Reflection Radiometer and airborne TASI-600 images acquired in different months of the year were used to retrieve LST. Moreover, a three-dimensional building vector database was used to produce SVF maps at different spatial resolutions, according to the thermal ones. The results show a positive relationship between LST and SVF; these trends are almost superimposable for same-sensor images, but vary for images at different resolutions. This is likely due to the interference on the SVF and LST values of micro-scale factors, e.g. thermal properties of building materials, anthropogenic heat, humidity... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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