SeaDAS Training CourseNASA Ocean Biology Processing Group

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-The SeaWiFS Data Analysis System (SeaDAS) is

a comprehensive image analysis package for the

processing, display, analysis, and quality control

of ocean color data.

-SeaDAS is intended for use with all of the OBPG

supported sensors: MODIS/Aqua, MODIS/Terra,

SeaWiFS, OCTS, CZCS.

-SeaDAS can also be very useful as a general

scientific imagery/data analysis package.

What is SeaDAS?

SeaDAS - Processing and Display

Processing-All sensors L0 or L1A to SMI-subscening-browse products

Data Visualization-image package (reads many formats)-geolocated display (coastline, gridlines, etc.)-various image/data functions

Data Manipulation-projection-band operations-output data

SeaDAS Functionalities

-SeaDAS runs on “UNIX-like” systems (UNIX/linux/OS X)

-This means it does NOT run on Windows.

-Dedicated UNIX computer best, but there are options for

Windows users.

UNIX

linux

Mac OS X

SGI IRIX

Sun Solaris

MicrosoftWindowsUNIX

-UNIX is a fully featured modern Operating System

-History (AT&T Bell Labs, Berkeley, UNIX, linux, OS X)

-It is available in a variety of ‘flavors’

-It is comprised of simple tools (commands) that perform a

single function well

-These tools can be used together to perform complex tasks

-Powerful Command line

-GUI

What is UNIX?

Sample linux directory structure