HR: 1340h
AN: B43B-0280    [Abstracts]
TI: Estimation of Surface Parameters From MISR Data
AU: Hu, J
EM: jiannan@bu.edu
AF: Department of Geography, Boston University, 675 Commonwealth Avenue, Boston, MA 02215 United States
AU: Su, Y
EM: yinsu@crsa.bu.edu
AF: Department of Geography, Boston University, 675 Commonwealth Avenue, Boston, MA 02215 United States
AU: Tan, B
EM: tanbin@bu.edu
AF: Department of Geography, Boston University, 675 Commonwealth Avenue, Boston, MA 02215 United States
AU: Huang, D
EM: dh@crsa.bu.edu
AF: Department of Geography, Boston University, 675 Commonwealth Avenue, Boston, MA 02215 United States
AU: Yang, W
EM: ywze@crsa.bu.edu
AF: Department of Geography, Boston University, 675 Commonwealth Avenue, Boston, MA 02215 United States
AU: Bull, M A
EM: Michael.A.Bull@jpl.nasa.gov
AF: Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive Mailstop 169-315, Pasadena, CA 01109 United States
AU: Martonchik, J V
EM: John.V.Martonchik@jpl.nasa.gov
AF: Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive Mailstop 169-315, Pasadena, CA 01109 United States
AU: Diner, D J
EM: David.J.Diner@jpl.nasa.gov
AF: Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive Mailstop 169-315, Pasadena, CA 01109 United States
AU: * Knyazikhin, Y
EM: jknjazi@bu.edu
AF: Department of Geography, Boston University, 675 Commonwealth Avenue, Boston, MA 02215 United States
AU: Myneni, R B
EM: rmyneni@crsa.bu.edu
AF: Department of Geography, Boston University, 675 Commonwealth Avenue, Boston, MA 02215 United States
AB: Launched in December, 1999 on NASA Terra platform, the Multi-angle Imaging SpectroRadiometer (MISR) instrument observes the Earth regularly at nine discrete view angles and four visible/near-infrared spectral bands. The MISR standard products provide global green leaf area index (LAI) of vegetation and fraction of photosynthetically active radiation absorbed by vegetation (FPAR), which are available from the Langley Atmospheric Sciences Data Center (ASDC). The MISR LAI product is validated and its accuracy is specified. An additional objective of the MISR LAI/FPAR algorithm is to classify global vegetation into biome types - information that is usually an input to remote sensing algorithms that use single-angle observations. The use of multi-angle data minimizes the impact of biome misidentification on LAI retrievals. Furthermore, the energy absorbed by the ground below vegetation can be estimated from two independent MISR products, FPAR and BHRPAR (bi-hemispherical reflectance at PAR wavelengths), and this information can be used to derive at least three measures of canopy structure - Beer's law extinction coefficient, mean leaf inclination and the vegetation ground cover. A summary of our research on algorithm development, product analysis and validation will be presented. The characterization and change analysis of LSP using multi-angle information will be also discussed in this poster.
UR: http://cliveg.bu.edu/download/download.html
DE: 0430 Computational methods and data processing
DE: 0434 Data sets
DE: 0439 Ecosystems, structure and dynamics (4815)
SC: Biogeosciences [B]
MN: Fall Meeting 2005