Title :
Air-canopy temperature difference for fluorescence emission models
Author :
Niclòs, R. ; Caselles, V. ; Valor, E. ; Coll, C.
Author_Institution :
Thermodynamics Dept., Valencia Univ., Spain
Abstract :
Precise canopy temperature (CT) determination of a boreal forest region was needed within SIFLEX-2002 to improve the understanding of fluorescence processes. Taking into account sky radiance effects and emissivity correction, CT was measured with an accuracy of ±0.4 K using the CE 312 radiometer. An inverse correlation between Photochemical Reflectance Index (PRI) and CT, solar illumination and sensible heat flux has been detected in the comparative analysis of these physical quantities.
Keywords :
atmospheric temperature; emissivity; fluorescence; radiometry; vegetation mapping; SIFLEX-2002; air canopy temperature; boreal forest region; comparative analysis; emissivity correction; photochemical reflectance index; radiometer; sensible heat flux; sky radiance effects; solar illumination; Fluorescence; Infrared heating; Photochemistry; Protection; Radiometry; Reflectivity; Soil measurements; Temperature measurement; Temperature sensors; Vegetation mapping;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International
Print_ISBN :
0-7803-7929-2
DOI :
10.1109/IGARSS.2003.1295595
