SeaDASSeaWiFS Data Analysis System

http://seadas.gsfc.nasa.gov/e-mail:seadas@seadas.gsfc.nasa.gov

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SSeaDAS 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

Introduction to SeaDAS

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SSystem 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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SSoftware 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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SSeaDAS Main Menu

TutorialsProgramsCommand modeFAQ

SeaWiFS l1agen l1bgen msl12, 0 l3bin smigen browse bl1map bl2map bl3map l1atol0 coccobloomCZCS l1aczcs l2czcs exczcs ring glint coccobloomOCTS l1bocts msl12,1MOS msl12,2

seadispregisterl2chksubscenergczcsexczcschkczcsring

Overviewancqc

sddemosdwfontsdqfontsetlutxcd

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SDisplaying Data

Program: Seadisp

Tutorials SeaWiFSSeaWiFS L0MODIS OCTS/NASDAOCTS/SeaDASCZCS/SeaDASCZCS/DAACCZCS/SEAPAKMOSAVHRR SSTSeaDAS MappedHDFFlat FileGIF & TIFFTrue ColorBand List

LoopingProjectionSpin L3 BinnedScatter PlotBathymetryMultiple BandsBand ShiftArithmetic BandUser DefinedOutputL2 FlagsCopy GraphicsModify ColorsPaint ColorColor LUT

Change Color Table

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SMODIS Display Support

• Geolocation

• Level-1A

• Level-1B

• Level-2• OCL2, OCL2A, OCL2B, 28L2

• Level-3• Binned• Mapped

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SLoading Data

Interactive Mode

• Widget-based• Displays a number of windows simultaneously

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SDisplay Features

Coastline and Zoom

RescaleRoamZoomSpreadsheetRead & ProfileRlineGridCoastlineLandmaskVector OverlayContourHistogramShip TrackColor BarAnnotateGraphicsColor LUTOutputRefresh

RescaleColor BarGridCoastlineLandmaskGraphics

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SDisplaying MODIS Data

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SDisplaying MODIS Flags

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SDownload and Support

• SeaDAS is free to download:http://seadas.gsfc.nasa.gov/

• Current version is 4.4p5

• Questions and user support:seadas@seadas.gsfc.nasa.gov

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SThe 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."