Forum

Barry, this case study video tutorial illustrates the use of the Collocation Tool in comparing files and using statistics.
https://www.youtube.com/watch?v=5dIwCK7IDXE

More videos can be found here:
https://seadas.gsfc.nasa.gov/tutorials/video_tutorials/

Danny

Oftentimes with SeaDAS there are 2 or more ways of doing something.  Another approach would be to use the Collocation Tool.  This tool will create a new file which contains all the bands of your 2 source files.  If the source files contain differing projections then this tool will sti...

Since your input file is a mapped file then with SeaDAS the best option for geographically cropping a file at the command line would be to use the gpt Subset operator.  See the GPT Cookbook within the SeaDAS 7.5.x GUI (Menu > Help > Cookbooks > GPT Cookbook).  Go to the section on the &quo...

As a note since SeaDAS 7 has a platform dependent gpt executable filename, I'm using "gpt" as an alias for convenience:

For example I have on my mac in the file ~/.profile:
export SEADASROOT=/Users/seadas/SeaDAS_Installations/seadas-7.5.3
alias gpt=$SEADASROOT/bin/gpt.command

Danny

Are you using SeaDAS Version 7.5.3?

I downloaded the file (https://oceandata.sci.gsfc.nasa.gov/ob/getfile/AQUA_MODIS.20071229T071507.L2.SST.nc) and ran it on my mac with no problem.I used your graph file and the command line I used is:gpt reproject.xml -Ssource=AQUA_MODIS.20071229T071507.L2.SST.nc -f GeoTIFF -Ptarget=AQUA_MODIS.200712...

This is correct Amita.  If you save the file then the reprojection occurs for all bands.  As I mentioned, if you create a "virtual" file (not saved but just in the GUI) then the reprojection does not occur until you view the band.

thanks
Danny

In addition to possible memory allocation differences between the GUI and command line gpt run of Reprojection, the GUI run of Reprojection can be extremely fast if you choose to NOT save the target file.  In this GUI case, the target file is "virtual" and reprojection does not actual...

MSI and OLCI are not supported yet within the SeaDAS GUI, but can be done on the command line.  OCSSW works well on both Linux and Mac.  There is currently no tutorial on l2gen command line but some of the presentation slides give a broad overview of the l2gen features.To install the MSI/O...

Yes the colors do indicate the chlorophyll concentration.  To view the color bar (legend) of a particular image, right click on the image and select "Export Colorbar" or there is an shortcut icon in the menu bar.  The range (thresholds) can be adjusted in the Color Manager window...