Title :
Land surface temperature in the urban area of Lyon metropolis: A comparative study of remote sensing data and MesoNH model simulation
Author :
Diallo-Dudek, Julita ; Lacaze, Bernard ; Comby, Jacques
Author_Institution :
Dept. of Geogr. & Planning, Univ. of Lyon, Lyon, France
fDate :
March 30 2015-April 1 2015
Abstract :
This work is the first attempt to characterize the Surface Heat Island (SHI) of Lyon, using a dual approach: remote sensing and modeling. The remote sensing approach is based upon the processing of Landsat imagery : daytime Landsat 5 TM images (11th April 2011) and nighttime Landsat 7 ETM+ images (30th April 2011). For the modeling MesoNH, a non-hydrostatic mesoscale atmospheric model is used. For the most case LST retrieved from Landsat and LST obtained by modeling are compared. Means of surface temperature are close to 0.5°C to 2°C. The differences between two methods depend on the day or night conditions, and the accuracy of land cover database.
Keywords :
geophysical image processing; land cover; land surface temperature; remote sensing; AD 2011 04 11; AD 2011 04 30; Landsat 7 ETM images; Landsat imagery processing; Lyon metropolis; Lyon surface heat island; MesoNH model simulation; day condition; land cover database accuracy; land surface temperature; night condition; nonhydrostatic mesoscale atmospheric model; remote sensing data; temperature 0.5 degC to 2 degC; urban area; Atmospheric modeling; Earth; Land surface; Land surface temperature; Remote sensing; Satellites; Surface topography;
Conference_Titel :
Urban Remote Sensing Event (JURSE), 2015 Joint
Conference_Location :
Lausanne
DOI :
10.1109/JURSE.2015.7120528
