Data

For that study, we used the data coming from two different sources. The thermal data are extracted from the Landsat database (26/06/2018), with the Earth Explorer platform2 [8]. These images are acquired with the B11 Landsat band at 100 metres resolution, and then resampled to 30 metres. We also used data coming from the SITG (Système d’information du territoire de Genève )3. The green roofs of Geneva are presented in a vectorial form [8], regularly updated (2018) with a precision of 30 cm. Finally, the delimitation of the quarters of Geneva [8] can be found on the SITG website in a vectorial form also.