Search found 606 matches

by gnwiii
Wed Jul 21, 2021 9:15 am America/New_York
Forum: All Questions/Comments
Question: how to remove bowtie for VIIRS imagery in SeaDAS
Replies: 6

Re: how to remove bowtie for VIIRS imagery in SeaDAS

You are very welcome. Hope you find a workflow that fits your use case. I should mention that the deletion artifacts (and Moire effects) are less of a problem at lower resolution. Also, ESA has their own binning tool in the Graph Processing Facility (GPF). It is mentioned in the SeaDAS 8 GUI Help GP...
by gnwiii
Tue Jul 20, 2021 8:00 pm America/New_York
Forum: All Questions/Comments
Question: Issue adding masks to L3 SeaDAS images
Replies: 2

Re: Issue adding masks to L3 SeaDAS images

You need to provide enough detail so others can reproduce the problem. In particular, please let us know your platform details (Windows, Linux, or macOS; OS version; amount of RAM; native install or virtual machine). All these OS's have tools that allow you to view details of running processes to de...
by gnwiii
Tue Jul 20, 2021 1:34 pm America/New_York
Forum: All Questions/Comments
Question: How to remove clouds over sea ice?
Replies: 2

Re: How to remove clouds over sea ice?

I doubt there is a way to do this without using multiple passes and/or microwave sensor products. Quoting <https://modis-snow-ice.gsfc.nasa.gov/uploads/pap_sea_ice_ist.pdf>: "Because the swath algorithm will often map clouds as sea ice, we use the MODIS cloud mask product to mask the clouds. If...
by gnwiii
Tue Jul 20, 2021 7:47 am America/New_York
Forum: All Questions/Comments
Question: how to remove bowtie for VIIRS imagery in SeaDAS
Replies: 6

Re: how to remove bowtie for VIIRS imagery in SeaDAS

Supporting subset would complicate the area-weighting and interpolation at edges of the region, so maybe it should not be a big surprise that you get "unfilled" deletions in mapped images. Given that mapping a single granual doesn't take long with modern hardware, it makes sense to produce...
by gnwiii
Sun Jul 18, 2021 5:41 pm America/New_York
Forum: All Questions/Comments
Question: Java Issue on Mac
Replies: 13

Re: Java Issue on Mac

I get this error when I try the l2gen function: execution exception: java.lang.NullPointerException null This is a generic message that usually indicates a problem running "l2gen". There may be more details in a log file, but the most direct way to discover the problem is to run l2gen wit...
by gnwiii
Sat Jul 17, 2021 7:36 pm America/New_York
Forum: All Questions/Comments
Question: how to remove bowtie for VIIRS imagery in SeaDAS
Replies: 6

Re: how to remove bowtie for VIIRS imagery in SeaDAS

Can you explain what is meant by "remove bowtie"? Do you want to replace the pixels deleted in the scanline overlap areas at the edges of the scans for "improved" appearance? Do you have access to OCSSW Processing Software. e.g., linux (including WSL) or macOS?
by gnwiii
Thu Jul 15, 2021 8:22 am America/New_York
Forum: All Questions/Comments
Question: SeaDAS 8.1.0 installation error
Replies: 1

Re: SeaDAS 8.1.0 installation error

I should note that it is not good practice to install SeaDAS as root -- it is a complex GUI application intended to be installed on a per user basis. If you want to use a script for multiple installs (e.g., student workshop) you could consider making a tar archive of a base installation and extracti...
by gnwiii
Wed Jul 14, 2021 10:15 am America/New_York
Forum: All Questions/Comments
Question: SeaDAS 8.1.0 -- MODIS GEO file
Replies: 14

Re: SeaDAS 8.1.0 -- MODIS GEO file

As Sean mentioned, macOS defaults to the system python. Can you try running the SeaDAS GUI from a terminal with "Anacoda python" (see "https://docs.anaconda.com/anaconda/inst ... y-install/")?
by gnwiii
Tue Jul 13, 2021 9:34 pm America/New_York
Forum: All Questions/Comments
Question: (Log file directory is not accessible to write) Install Seadas 8.1.0, WSL, Windows 10, OCSSW
Replies: 20

Re: (Log file directory is not accessible to write) Install Seadas 8.1.0, WSL, Windows 10, OCSSW

Your file has ocsswroot=negri/ocssw (I DON'T NOW IF IT IS CORRECTED ???) This should be the full path of the directory that contains the OCSSW software (maybe "/home/negri/ocssw"?). Are you able to run the "benchmark" script? There is no point chasing problems in configuration fi...
by gnwiii
Tue Jul 13, 2021 9:24 pm America/New_York
Forum: All Questions/Comments
Question: Java Issue on Mac
Replies: 13

Re: Java Issue on Mac

I tried to install the Hawkeye processor for l2gen and got the attached error. I was able to get to the window and choose Hawkeye, but the attached error is what I receive when I press "run". It is much more helpful to paste text into a message. Screen capture images are not searchable so...