Lebourgeois V. auteur aut IRD Labbé S. auteur aut IRD Jacob Frédéric auteur aut IRD Bégué A. auteur aut IRD text conferencePaper eng text/pdf born digital access Corrections atmosphériques d'images thermiques de cultures tropicales acquises à basse altitude. / Accurate corrections of atmospheric effects on thermal infrared remote sensing data are an essential pre-requisite for the development of thermal infrared airborne-derived crop water stress indices. These corrections can be performed using ground surface temperature measurements, which are time consuming and expensive. Atmospheric effects can also be corrected using radiative transfer models that require knowledge of atmospheric status. The latter can be accurately characterized from radiosoundings, but these are usually unavailable. It can also be derived from meteorological model simulations, but spatial and temporal resolution are often too coarse. This study proposes performing atmospheric corrections by using temperature and relative humidity profiles acquired in flight from onboard sensors during data collection. Such measurements are used to document the atmospheric radiative transfer model MATISSE. First results from an experimentation over a tropical cropped area show that corrections are made with a 1.46 °K accuracy. specialized TELEDETECTION IMAGE SATELLITAIRE INFRAROUGE THERMIQUE MESURE THERMIQUE PLANTE TROPICALE SIMULATION THERMIQUE MODELE CORRECTION ATMOSPHERIQUE ZONE TROPICALE 126 IEEE International Geoscience and Remote Sensing Symposium, Boston (USA), 2008/07/06-11 672-675 Piscataway IEEE 2008 https://www.documentation.ird.fr/hor/fdi:010087325 10.1109/IGARSS.2008.4779437 978-1-4244-2808-3 [F B010087325] https://www.documentation.ird.fr/hor/fdi:010087325 https://www.documentation.ird.fr/intranet/publi/2023-02/010087325.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2010-03-31 2023-02-28 fdi:010087325 fre