Angular chlorophyll indices estimates derived from ground-based diurnal course data and multiangular CHRIS-PROBA data: two case studies

0090736 - ÚVGZ 2011 BE eng C - Konferenční příspěvek (zahraniční konf.)
Verrelst, J. - Ač, Alexander - Malenovský, Zbyněk - Hanuš, Jan - Marek, Michal V. - Schaepman, M.E.
Angular chlorophyll indices estimates derived from ground-based diurnal course data and multiangular CHRIS-PROBA data: two case studies.
Proceedings 5EARSeL SIG IS Workshop "Imaging Spectroscopy: innovation in environmental research". Brugge: EARSeL, 2007 - (Cools, J.; Reusen, I.), s. 1-15
[EARSeL SIG IS Workshop: Imaging spectroscopy: innovation in environmental research /5./. Brugge (BE), 23.04.2007-25.04.2007]
Grant CEP: GA MŠMT 2B06068
Výzkumný záměr: CEZ:AV0Z60870520
Klíčová slova: imaging spectroscopy * diurnal * vegetation index
Kód oboru RIV: GK - Lesnictví

At leaf and plant level chlorophyll indices have shown strong correlations with chlorophyll con-tent and photosynthesis-related processes. However, at canopy level additional abiotic and biotic factors confound the fidelity of these indices. For instance, the Photochemical Reflectance Index (PRI) is known to be sensitive to viewing angles and canopy structure. In this paper we present case studies of two natural canopies at different scales where the influence of sun-target-sensor geometry and canopy structure is inter-compared for a range of chlorophyll indices.
Trvalý link: http://hdl.handle.net/11104/0151525