Transcript Options for access to multi-source fire data - GOFC/GOLD-Fire

Options for access to multisource fire data
John Owens
Department of Geography
University of Maryland
One GOFC Fire Goal
• Make fire data available in near-real time
on the web from multiple instruments
(MODIS, AVHRR, TRMM, DMSP, ATSR,
GOES) for science and natural resource
management
– This will improve temporal/spatial coverage
and allow comparisons between
sensors/algorithms
How to get there 1st Step
• For simplicity and ready integration into
existing work, make the fire detection file
format simple
– Plain text file
– Include at a minimum Lat, Lon, Date, Time of
fire detection
– Using a universal format for all data providers
makes it easier to incorporate the data
Available Data Sources
• AVHRR through the World Fire Web
• MODIS through the MODIS Rapid Response
System
• DMSP through the DMSP processing systems
• Future Developments:
– TRMM through NASA GSFC
– Aqua MODIS when launched
– Direct Broadcast MODIS Fire from receiving stations
AVHRR Fire Detections
• Available through the World Fire Web
nodes
• Text files of Lat, Lon of fire detections
available for download (.fpp files)
• Depending on whether obtained from JRC
(global collection) or a regional node (local
coverage), delivery time varies (1-2 days)
MODIS Rapid Response System
• On the web at http://rapidfire.sci.gsfc.nasa.gov
• RGB Color MODIS imagery (250m, 500m, 1km) with fire
detections overlaid, fire detections produced from same
MOD14 MODIS standard product algorithm
• Global land surface coverage, ~4 hour delivery time
• Also, MODIS fire detections available as a flat text file
format for FTP
– Fields (Lat/Lon/BTemp/Date/Time) ~4 hour delivery time
– (Ftp://modis-sde.geog.umd.edu)
MODIS Direct Broadcast
• Direct Broadcast will have a time advantage in
availability of data
• Close to release is a free, open source software package
for MODIS Fire (uses the same algorithm as the MODIS
Rapid Response System)
– Will produce same format fire detection text files as MODIS RR
System
– Contact Jacques Descloitres ([email protected]) for
more information on availability
• Will local DB stations make available data over the web?
Web Fire Maps
• On the web at http://firemaps.geog.umd.edu
• Fire detections from MODIS Rapid Response
System available for viewing in regional WebGIS
maps, combined with GIS datasets from GOFC
partners
• Goal is to integrate multiple fire data sources
and find regional hosting partners for the system
• SE Asia web map produced with data from
SEARIN CD set—can anyone contribute
regional or national GIS layers to help us make
the SE Asia products better?
Fire Feature Servers
• An improved method of delivery—using your
GIS software, just connect to the feature service
on the web providing the fire dataset, and use
the complete, up-to-date archive of data
currently available.
• A prototype MODIS fire feature server is
available
– http://firemaps.geog.umd.edu
– Use ArcGIS 8.1 to connect and query the spatial
database of global fire detections
The Way Forward
• Encourage all fire data providers to make their
data freely available in near-real time on the web
(we’re getting there)
• Use the multi-source data for synthesis products
and intercomparison
• Investigate more advanced products (burn scar
products under development)
• Once we have fire data available on the web,
work to improve delivery mechanisms (e.g. fire
feature server technology)