HR: 0800h
AN: B31B-0216    [Abstracts]
TI: Comparing FAPAR by canopy, FAPAR by leaves, FAPAR by chlorophyll in leaves, NDVI, and EVI of Harvard Forest using MODIS data
AU: * ZHANG, Q
EM: qzhang@eos.sr.unh.edu
AF: Complex Systems Research Center, Institute for studies of Earth, Oceans, and Space (EOS), UNH, 39 College Road, Morse Hall, UNH, Durham, NH 03824
AU: XIAO, X
EM: xiangming.xiao@unh.edu
AF: Complex Systems Research Center, Institute for studies of Earth, Oceans, and Space (EOS), UNH, 39 College Road, Morse Hall, UNH, Durham, NH 03824
AU: Braswell, B
EM: rob.braswell@unh.edu
AF: Complex Systems Research Center, Institute for studies of Earth, Oceans, and Space (EOS), UNH, 39 College Road, Morse Hall, UNH, Durham, NH 03824
AU: ABER, J
EM: john.aber@unh.edu
AF: Complex Systems Research Center, Institute for studies of Earth, Oceans, and Space (EOS), UNH, 39 College Road, Morse Hall, UNH, Durham, NH 03824
AU: MOORE, B
EM: b.moore@unh.edu
AF: Complex Systems Research Center, Institute for studies of Earth, Oceans, and Space (EOS), UNH, 39 College Road, Morse Hall, UNH, Durham, NH 03824
AB: Moderate Resolution Imaging Spectroradiometer (MODIS) provides an improved potential (more and finer spectral bands, and finer spatial resolution) for better characteristics of vegetation at global scale than AVHRR (advanced very high resolution radiometer). We calculated fraction of photosynthetically active radiation (PAR) absorbed (FAPAR) by canopy, by leaves, and by chlorophyll in leaves of Harvard Forest using the PROSPECT+SAIL (PROSAIL) model and MODIS daily data. The FAPAR by canopy, FAPAR by leaves, FAPAR by chlorophyll in leaves,normalized difference vegetation index (NDVI) and enhanced vegetation index (EVI) from the same MODIS daily data were compared. We concluded that, under atmospherically clear condition for Harvard Forest, EVI is closer to FAPAR by chlorophyll in leaves than other two FAPAR, and NDVI is closer to FAPAR by leaves than other two FAPAR, at the MODIS scale ( about 500m). We plan to investigate their relationships under both atmospherically polluted condition and atmospherically clear condition and for other forest sites in the future.
DE: 4805 Biogeochemical cycles (1615)
DE: 4806 Carbon cycling
DE: 1615 Biogeochemical processes (4805)
DE: 1640 Remote sensing
SC: Biogeosciences [B]
MN: 2004 AGU Fall Meeting