On the relationship between the sky view factor and the land surface temperature derived by Landsat-8 images in Bari, Italy

Autor:	M. Scarano, José A. Sobrino
Rok vydání:	2015
Předmět:	Daytime Meteorology Land surface temperature media_common.quotation_subject Urban morphology Land cover View factor Sky Climatology Radiative transfer General Earth and Planetary Sciences Environmental science Street canyon media_common
Zdroj:	International Journal of Remote Sensing. 36:4820-4835
ISSN:	1366-5901 0143-1161
DOI:	10.1080/01431161.2015.1070325
Popis:	This study investigates the impact of landscape composition and urban morphology on land surface temperature LST in the city of Bari, Italy. For this purpose, correlation between sky view factor SVF and LST was done assigning weights to the output results and moreover expressing the latter according to the four main surface classes of the Corine land cover CLC classification method. To do this, several daytime Landsat 8 and night-time Landsat 7 ETM+ images acquired during different months of the year were used to retrieve LST by using the radiative transfer equation. The results show a positive relationship between LST and SVF, and this trend is emphasized particularly in the more dense urban areas i.e. for values of SVF close to 0.6, temperature decreases by about 4 K in winter and by more than 7 K in summer. Moreover, the results show that in Bari the relationship between LST and SVF is influenced by seasonal effects resulting in two different behaviours depending on night-and daytime.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::de77a1021a12156d8d12ec5cde1cf871 https://doi.org/10.1080/01431161.2015.1070325 Zobrazit plný text záznamu