HR: 10:20h
AN: B42A-01 INVITED     [Abstracts]
TI: Monitoring Global Vegetation Phenology From MODIS: Spatio-Temporal Correspondence Between Climate and Vegetation Activity at Regional to Global Scales
AU: * Friedl, M A
EM: friedl@bu.edu
AF: Department of Geography and Environment, Boston University, 675 Commonwealth Avenue, Boston, MA 02215 United States
AU: Zhang, X
EM: xiaoyang.zhang@noaa.gov
AF: NOAA/NESDIS Center for Satellite Applications and Research, 5200 Auth Road, Camp Springs, MD 20746 United States
AB: It is now recognized that vegetation both responds to and influences climate and atmospheric processes across a wide range of spatial and temporal scales. Because vegetation phenology reflects the combined effects of biosphere-atmosphere interactions at seasonal (and longer) time scales, it provides a useful mechanism for studying and monitoring the effects of climate variability on ecosystem processes. As a consequence, interest in vegetation phenology has grown dramatically over the last decade. While many studies have focused on in-situ observations of individual species, satellite remote sensing has recently emerged as a key tool for studying vegetation phenology at large spatial scales. In this paper, we describe ongoing research and recent results obtained using the Moderate Resolution Imaging Spectroradiometer (MODIS) to study global patterns in vegetation phenology at intra- and interannual time scales. Specifically, we briefly describe the data sets and algorithms that are being used to produce global metrics related to vegetation phenology from the MODIS instrument. This description is followed by a summary of key results obtained to date using MODIS data. Topics to be discussed include: (1) the ecological footprint of urban climates; (2) climate controls on vegetation phenology in Northern Hemisphere mid- and high-latitudes; and (3) monitoring the response of vegetation phenology to precipitation forcing in Africa. We conclude with a brief discussion of current issues and future plans for monitoring vegetation phenology using MODIS.
UR: http://geography.bu.edu/landcover/
DE: 0315 Biosphere/atmosphere interactions (0426, 1610)
DE: 0414 Biogeochemical cycles, processes, and modeling (0412, 0793, 1615, 4805, 4912)
DE: 0476 Plant ecology (1851)
DE: 0758 Remote sensing
DE: 1616 Climate variability (1635, 3305, 3309, 4215, 4513)
SC: Biogeosciences [B]
MN: Fall Meeting 2005