HR: 1340h
AN: GC23A-0998    [Abstracts]
TI: The NASA NEESPI Tools Use in Studies of Environmental Changes in Northern Eurasia
AU: * Shen, S
EM: suhung.shen@gsfc.nasa.gov
AF: George Mason University/NASA GSFC, Code 610.2, Greenbelt, MD 20771, United States
AU: Leptoukh, G
EM: Gregory.Leptoukh@nasa.gov
AF: NASA GSFC, code 610.2, Greebbelt, MD 20771, United States
AU: Csiszar, I
EM: icsiszar@hermes.geog.umd.edu
AF: University of Maryland, Geography Department, College Park, MD 20742, United States
AU: Loboda, T
EM: tloboda@hermes.geog.umd.edu
AF: University of Maryland, Geography Department, College Park, MD 20742, United States
AU: Romanov, P
EM: Peter.Romanov@noaa.gov
AF: NOAA, NESDIS, Silver Spring, MD 20910, United States
AU: Gerasimov, I
EM: igerasim@pop600.gsfc.nasa.gov
AF: ADNET/NASA GSFC, Code 610.2, Greenbelt, MD 20771, United States
AB: The NASA NEESPI portal is a multi-sensor, online, easy access data archive and distribution system to provide advanced data management capabilities in support of the Northern Eurasia Earth Science Partnership Initiative (NEESPI) scientific objectives. Its tools include data analysis and visualization, and other techniques for better science data usage in assessment of the state and dynamics of terrestrial ecosystems in Northern Eurasia and their interactions with the Earth's Climate system. Several cases are investigated using the NEESPI online visualization and analysis system Giovanni that demonstrate ability to multi-sensor data exploration. The analysis of fire occurrence in western Kazakhstan during 2001-2002 has indicated a potential relationship between precipitation, NDVI, and fire occurrence. Inter-annual change in precipitation occurrence is shown to drive the vegetation response observed through NDVI. A greater amount of precipitation during May of 2002 prompted an increase in plant productivity and the corresponding NDVI signal. The enhanced plant productivity potentially leads to a greater accumulation of fuels during the senescence period between June and September. Fuel accumulation results in increased fire occurrence (observed through Fire Counts) and higher fire intensity (observed through the Fire Radiative Power). Other sample studies will be presented in this paper are ice frequency changes over Sea of Okhotsk and other northern seas, and potential drought risk assessment in Mongolia and Central Asia republics using remotely sensed soil moisture and rainfall rate.
DE: 1615 Biogeochemical cycles, processes, and modeling (0412, 0414, 0793, 4805, 4912)
DE: 1621 Cryospheric change (0776)
DE: 1631 Land/atmosphere interactions (1218, 1843, 3322)
DE: 1655 Water cycles (1836)
DE: 1834 Human impacts
SC: Global Environmental Change [GC]
MN: 2007 Fall Meeting