Oak Ridge National Laboratory is managed by UTBattelle, LLC,

1
1Oak Ridge National Laboratory, Oak Ridge,
Tennessee 2Goddard Space Flight Center,
Greenbelt, Maryland 3University of Montana,
Missoula, Montana
Approach

• higher-resolution airborne or satellite sensors,
  and
• data from ground-based studies at validation
  core sites, flux towers, data from literature,
  etc.

Data Sources

• EOS Land Validation Core Sites
• 32 sites stratified by six biomes
• Based on existing stations, projects, and
  networks
• FLUXNET, AERONET, BigFoot, LTER, etc. ,
• Long-term monitoring
• Jointly nominated by Instrument and Validation PIs

• In Situ Data
• Data needs and schedules
  defined by working
  with
  MODLAND Validation scientists
• Investigators are responsible for
  processing,
  documenting, QA, and providing access to their
  data
• Provide Mercury system for search and retrieval,
  for both in situ and remote sensing data
• Land Validation data will be archive at ORNL DAAC
• Also provide Regional and Global data sets for
  modeling as part of ORNL DAAC mission

• Remote Sensing Data
• Landsat 5, ETM, IKONOS,
• ASTER, airborne sensors,
• subsetted over the core sites
• in situ Site Data
• Collected by various groups
• at core sites, available via Mercury
• Networks
• AERONET, FLUXNET, etc.
• Ancillary Site Data/GIS Layers
• - site variables
• - elevation
• - land cover
• - reference layers (e.g., political
• boundaries, airports, water
• bodies)

Historical data from literature

• Leaf Area Index (LAI)

Oak Ridge National Laboratory is managed by
UT-Battelle, LLC, for the U.S. Dept. of
Energy under contract DE-AC05-00OR22725.
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MODIS Land Validation (continued)
Compilation of Validation Data
Walker Branch Watershed Oak Ridge,
Tennessee United States
Path Forward

• http//modarch.gsfc.nasa.gov/MODIS/LAND/VAL/
• http//daac.ornl.gov/eos_land_val/valid.html
• http//daac.ornl.gov/FLUXNET/
• http//modarch.gsfc.nasa.gov/MODIS/LAND/modland.h
  tml
• http//eospso.gsfc.nasa.gov/validation/valpage.ht
  ml

For additional information on validation of
MODIS land products, see
E-mail Contacts Larry Voorhees
voorheesld_at_ornl.gov Robert Cook
cookrb_at_ornl.gov
December 2003