Centre de documentation
scientifique

Estimation of tropical forest canopy temperatures, thermal response numbers, and evapotranspiration using an aircraft-based thermal sensor / J.C. Luvall in Photogrammetric Engineering & Remote Sensing, PERS, vol 56 n° 10 (october 1990)  

Public [article]  inPhotogrammetric Engineering & Remote Sensing, PERS > vol 56 n° 10 (october 1990) . - pp 1393 - 1401 Titre : Estimation of tropical forest canopy temperatures, thermal response numbers, and evapotranspiration using an aircraft-based thermal sensor Type de document : Article/Communication Auteurs : J.C. Luvall, Auteur ; D. Lieberman, Auteur ; M. Lieberman, Auteur ; G.S. Hartshorn, Auteur ; R. Peralta, Auteur Année de publication : 1990 Article en page(s) : pp 1393 - 1401 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] canopée [Termes IGN] capteur aérien [Termes IGN] Costa Rica [Termes IGN] couvert végétal [Termes IGN] évapotranspiration [Termes IGN] forêt tropicale [Termes IGN] image thermique [Termes IGN] radiosondage [Termes IGN] rayonnement infrarouge thermique [Termes IGN] thermographie aérienne Résumé : (Auteur) Thermal infrared Multispectral Scanner (TIMS) data were collected at a resolution of 5 to 10 m from a tropical rain forest over an elevation gradient from 35 to 2700 m in the Braulio Carrillo National Park in Costa Rica. Flight lines were repeated with a 15 to 30 minute time difference for measurement of forest canopy thermal response over time. Concurrent radiosonde measurements of atmospheric profiles of air temperature and moisture provided inputs to LOWTRAN6 for atmospheric radiance corrections of the TIMS data. Techniques for using calibrated aircraft-based thermal scanner data to examine tropical forest canopy thermal properties are described. Forest canopy temperature changes over time assessed between repeated, duplicated flight lines were combined with estimates of surface radiative energy measurements from towers above the forest canopy to determine temperature spatial variability, calculate Thermal Response Numbers (TRN), and estimate evapotranspiration along the elevation gradient from selected one hectare forest inventory plots. Numéro de notice : A1990-185 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article DOI : sans En ligne : https://www.asprs.org/wp-content/uploads/pers/1990journal/oct/1990_oct_1393-1401 [...] Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=25600 [article]