HR: 0800h
AN: B21A-0034    [Abstracts]
TI: MODIS Collection 5 Land Cover Type and Land Cover Dynamics: Algorithm Refinements and Early Assessment
AU: * Sulla-Menashe, D
EM: dsm@bu.edu
AF: Department of Geography and Environment, Boston University, 675 Commonwealth Avenue, Boston, MA 02215, United States
AU: Friedl, M A
EM: friedl@bu.edu
AF: Department of Geography and Environment, Boston University, 675 Commonwealth Avenue, Boston, MA 02215, United States
AB: The Moderate Resolution Imaging Spectroradiometer (MODIS) onboard NASA's Terra and Aqua spacecraft provides land surface data at global scales that are useful for a wide array of scientific applications related to land surface properties and processes. In the past year, land products from collection 5 MODIS reprocessing have become available. In this paper, we describe algorithm refinements and recent results from collection 5 reprocessing of the MODIS land cover type and land cover dynamics products (MOD12). Specifically, we describe the algorithms and data sets that are being used to characterize the geographic distribution and phenology of vegetation and land cover types at global scales. In collection 5, the MOD12 product is being produced at 500- meter spatial resolution using 8-day inputs from the MODIS Nadir-BRDF-Adjusted Reflectance (NBAR) product. The increased spatial and temporal resolution of the input data used to produce the MOD12 product represent significant steps forward and result in substantial improvements relative to the MOD12 collection 4 products. This paper will describe specific changes to algorithms and input data that are being used in collection 5, and will provide preliminary assessments regarding changes in product quality.
DE: 0416 Biogeophysics
DE: 0428 Carbon cycling (4806)
DE: 0439 Ecosystems, structure and dynamics (4815)
DE: 0480 Remote sensing
SC: Biogeosciences [B]
MN: 2007 Fall Meeting