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You seem to have all the right ingredients.   Have you tried running update_luts.py --verbose ... from the command line with the python2 environment?  You can also try: /Users/astridleitner/anaconda3/envs/python2/bin/python $OCSSWROOT/run/scripts/update_luts.py --verbose ....If that w...

If it is any comfort, you are not the only one having this problem.   It may be helpful to others if you provide more complete details of your misbehaving configuration.  So far I have seen systems (both macOS and linux) with a suitable python installed but the PATH variable set to us...

I suspect the relevant change in SeaDAS 7 is the use of a "TrueColour" graphics model.  SeaDAS 6 used 8-bit colour, so your previous GeoTiffs probably had a single band and a colour LUT.  There are tools you can use to check if this is the case (e.g., ImageMagick's "iden...

When the seadas GUI misbehaves you can start it in debug mode (in a terminal) using "<seadas_install_dir>/bin/seadas-d.sh".  There may be hints in "<seadas_install_dir>/bin/stderr.log".  Look for files of the form "$HOME/hs_err*" (see Java Hotspot errors)....

If you search for ubuntu and git you should see (2nd topic on my search): Update the ocssw processors failed with instructions for building git in Ubuntu 14.04.  This is a bit messy, so you might prefer to upgrade to Ubuntu 16.04 (LTS).

The factor of two comes from the double length of the path down and back up.  The simple exponential  formula gives a rough and ready approximation for the contribution from various depths, so Kd_490 can be used "for purposes of illustration".

Thanks.  geolocate_viirs is working here.  I've been spoiled by all the helpful software that points out when options are missing or incorrect -- need to remember that such luxuries aren't always present.

Roughly speaking, you get a weighted contribution from the underwater concentration.   The wavelengths used in chlor_a algorithms can penetrate many meters, but due to attenuation of the light on both downward and return paths, the contribution to Rrs is heavily weighted towards the surfac...

Try Oracle Java.  OpenJDK is known to have problems with graphics updating.

My personal approach to the issues you posed:1.  attaching a colorbara. GPT is generally used in batch processing to create lots of images, hopefully all with the same colour scale.  Rather than attaching a colour scale to each image, it often makes sense to keep it separate.  I often...