SeaDAS SeaWiFS Data Analysis System

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SeaDASSeaWiFS Data Analysis System

• http//seadas.gsfc.nasa.gov/
• e-mailseadas_at_seadas.gsfc.nasa.gov

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Introduction to SeaDAS

• SeaDAS provides user-friendly software for
• processing
• displaying
• analyzing data
• Data sets supported
• SeaWiFS
• OCTS
• MOS
• CZCS
• MODIS
• OSMI
• AVHRR SST data
• SeaWiFS-format OZONE and MET ancillary data

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System Configuration

• Platforms
• Silicon Graphics
• SUN UltraSPARC
• PC
• Operating Systems
• IRIX 6.5
• Solaris 2.6 - 2.8
• Red Hat Linux 7.0 - 7.3
• Suggested Hardware
• 192 MB memory
• 9 GB hard drive

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Software Configuration

• SeaDAS Software comes with
• Complete source code and executables
• HDF 4.1r5 libraries
• embedded IDL runtime license (optional)
• Specialized Requirements (for developers)
• IDL development license
• C and Fortran compilers

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SeaDAS Main Menu
Tutorials Programs Command mode FAQ
SeaWiFS l1agen l1bgen msl12, 0
l3bin smigen browse bl1map
bl2map bl3map l1atol0
coccobloom CZCS l1aczcs l2czcs
exczcs ring glint coccobloom OCTS
l1bocts msl12,1 MOS msl12,2
seadisp register l2chk subscene rgczcs exczcs chkc
zcs ring
Overview ancqc
sddemo sdwfont sdqfont setlut xcd
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Displaying Data
Program Seadisp
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MODIS Display Support

• Geolocation
• Level-1A
• Level-1B
• Level-2
• OCL2, OCL2A, OCL2B, 28L2
• Level-3
• Binned
• Mapped

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Loading Data
Interactive Mode

• Widget-based
• Displays a number of windows simultaneously

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Display Features
Rescale Roam Zoom Spreadsheet Read
Profile Rline Grid Coastline Landmask Vector
Overlay Contour Histogram Ship Track Color
Bar Annotate Graphics Color LUT Output Refresh
Rescale Color Bar Grid Coastline Landmask Graphics
Coastline and Zoom
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Displaying MODIS Data
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Displaying MODIS Flags
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Download and Support

• SeaDAS is free to download
• http//seadas.gsfc.nasa.gov/
• Current version is 4.4p5
• Questions and user support
• seadas_at_seadas.gsfc.nasa.gov

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The 2003 NASA Software of the Year The SeaWiFS
Data Analysis System by Gene Carl Feldman,
Charles McClain, GSFC, Karen Baith, consultant,
Mark Reubens, Xiao-Long Wang, Gary Fu, Bryan
Franz, SAIC "The SeaWiFS Data Analysis System
(SeaDAS) maximizes NASA's investment in Earth
remote sensing, delivering data to the user
community in a timely manner with the tools to
consistently and accurately manipulate the data.
SeaDAS provides data display, processing, and
analysis support. SeaDAS was designed to
identically reproduce all the standard products,
including levels 1, 2, and 3 (raw telemetry
counts to level 3 global mapped geophysical
products), generated by the SeaWiFS Project
Office (SPO), while providing users, through open
source development, the flexibility of customized
processing by adjusting processing parameters or
selecting alternative processing methods. SeaDAS
is in use at over 500 sites in over 50 nations."