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MODIS Direct Broadcast Rapid Response
Capabilities Getting Information to Operational
Decision Makers
An Earth Science Vision Technology Pathways and
Challenges for 2025 IGARSS 2002 Toronto,
Canada Dr. James C. Dodge NASA
Headquarters Washington, DC 20546
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Real-Time Observations from MODIS

• Fires
• Coastal conditions
• Flooding
• Tropical cyclones
• Thunderstorms
• Ice conditions
• Snow cover
• Ocean gradients
• Dust
• Air pollution
• Vegetation

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SEUS-X DB station - MODIS - 4.0 m dish - X/Y
mount
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UW-Madison EOS Direct Broadcast Groundstation
TeraScan SX-EOS 4.4 m antenna First pass
acquired 2000/08/18
Overpass prediction 2000/10/13
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Global Distribution of EOS Direct Broadcast Sites

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World View
Cyprus from Moscow
Mauna Loa
Dust clouds Korea
Italy-Greece from Matera
Cyclonic Circulation Beijing
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EOS Direct Broadcast Web Site
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2001/04/03 1625 South Florida and Cuba, True
Color
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MODIS Bands 1/4/3, 2000/11/01 1630 UTC,
UW-Madison Direct Broadcast
Fires in Shenandoah National Park, VA
Band 21
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Active Fire Mapping Program
Forest Service Remote Sensing Applications Center
Rapid Response
NASA Goddard Space Flight Center
University of Maryland
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MODIS Rapid Response Project Design
L1B Data
October 2001
Backup Feed L1B Data
Cumulative Fire Maps http//www.nifc.gov.firemaps.
html
Active Fire Locations
Burn Severity Maps Handcrafted Imagery
MODIS L0 Data
Active Fire Locations Selected Imagery
Active Fire and Corrected Reflectance http//rapid
fire.sci.gsfc.nasa.gov
Web Fire Maps http//rapidresponse.umd.edu
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MODIS Rapid Response System ViewsRecent Russia
Flooding (6/11/02)
http//rapidfire.sci.gsfc.nasa.gov/
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Multispectral Measurements of Atlantic Storm
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MODIS 2000/08/29 1130 UTC Band 2 Reflectance and
Cloudmask
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U. Wisconsin MODIS Snow-Cover Algorithm
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New Products from MODIS Bands
MODIS Mapped On a DEM
Band 31 for Ocean Temp. Gradient Information
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Observing Lake Turbidity
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Real-Time Observations of Canadian Ice
Ice-Covered Hudson Bay
Labrador CurrentGoose Bay
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MODIS Band 2 250 meter resolution UW-Madison
Direct Broadcast 2000/10/13 1559 UTC
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Regional Data Assimilation

• -GOES LST, Clouds
• -NEXRAD
• -Lightning

-TRMMPR/TMI -MODIS -AIRS -AMSU-E
-QUICKSCAT -GIFTS
Aimed at 0-12h forecast issues
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SeaSpace Web Page Real-time Image Retrieval
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Direct Readout Roadmap to NPP
POES/DMSP/SeaStar
Terra
Aqua
NPP
AVHRR SeaWiFS OLS
MODIS
VIIRS CrIS ATMS
MODIS AIRS AMSU HSB
S/C Instrument Evolution
Standardization Increasing RF, Modulation
Bandwidth Requirements

• X-band
• 15Mbps
• QPSK
• NRZM
• Viterbi
• Compression

• L,S-band
• .665 - 2Mbps
• Bi-Phase L

• X-band
• 13.1Mbps
• Viterbi
• OQPSK

• X-band
• 15Mbps
• OQPSK
• NRZM

• S/C specific STPS
• Level-0
• Return Link Processor
• Analog Configurable
• Receiver
• MODIS Level-1
• DAAC MODIS Simulcast

• Reconfigurable RT-STPS
• Return Link Processor
• Digital re-Configurable
• Receiver
• MODIS AIRS Level-1
• DAAC NEpster
• with L0 L1 data

• Reconfigurable RT-STPS
• Digital re-Configurable
• Receiver (PC-based)
• ALL Instru. Level-1 Software
• DAAC NEpster
• with L0, L1 EDRs
• Simulcast of all Instruments

• Custom Frame Formatters
• Ingest software
• Analog Custom Receivers
• NOAA Level1B (AVHRR)
• Limited Data Distribution
• mechanisms

Evolution of Concurrent Ground System Supporting
Technologies and Algorithm Development