HR: 0800h
AN: B41A-0088    [Abstracts]
TI: Changes In Growing Season Determined From Alaska GLOBE Data And NDVI
AU: * Robin, J
EM: jrobin@ltpmail.gsfc.nasa.gov
AF: University of Maryland-CollegePark, 2181 LeFrak, College Park, MD 20742 United States
AU: Sparrow, E
EM: ffebs@aurora.uaf.edu
AF: University of Alaska-Fairbanks, 303 O'Neill Building, Fairbanks, AK 99775 United States
AU: Levine, E
EM: elissa@ltpmail.gsfc.nasa.gov
AF: NASA Goddard Space Flight Center, Code 923, Greenbelt, MD 20771 United States
AB: The GLOBE program is an international partnership network of K-12 students, teachers, and scientists working together to study and understand the global environment. Through its suite of data collection and extensive network, GLOBE provides a valuable resource for studying the impact of climate change on the environment. Students make observations and measurements on the soils, hydrology, land cover, climate and phenology at or near their schools and report their data through the Internet to the GLOBE data archive. Since 1999, GLOBE students have monitored plant phenology at their schools and have reported annual dates for bud burst, green-up, leaf growth, and green-down for selected trees, shrubs, and grasses. GLOBE students have made over 54,000 phenology measurements with nearly half that data collected by GLOBE students in Alaska. This study reviews the Alaska phenology measurements to discern long-term changes from interannual variations in plant growing season length. Satellite derived vegetation indices from MODIS and AVHRR are also used in this study.
DE: 0400 Biogeosciences
SC: Biogeosciences [B]
MN: 2004 AGU Fall Meeting