Search found 708 matches

by gnwiii
Fri Dec 03, 2021 7:46 am America/New_York
Forum: Questions/Comments
Question: Errors in building ocssw processing executables
Replies: 5

Re: Errors in building ocssw processing executables

You appear to be using documentation from an old version. https://seadas.gsfc.nasa.gov/downloads/ has instructions for the current "--tag V2021.2" version. Somewhere in the documentation there is a note that sources for VIIRS support have not been released, so you need to download an archi...
by gnwiii
Mon Nov 29, 2021 8:26 am America/New_York
Forum: Questions/Comments
Question: Seadas batch processing: Extracting l2flags and szen
Replies: 6

Re: Seadas batch processing: Extracting l2flags and szen

For comparisons with in situ data I would use unmapped level-2 pixels in some region around the in situ location for a pass within a time window around the time of the in situ measurement. Unwanted/dubious pixels can be excluded using flags, and you can cosider the distribution of satellite values i...
by gnwiii
Fri Nov 26, 2021 3:02 pm America/New_York
Forum: Questions/Comments
Question: Seadas batch processing: Extracting l2flags and szen
Replies: 6

Re: Seadas batch processing: Extracting l2flags and szen

Today is the US Thanksgiving Holiday, but from Canada I can try to answer: Mapping software is generally restricted to variables that can take on a continuous range of values. Flags and classification data have discrete values. Mapping requires assigning values of the variable by some form of interp...
by gnwiii
Sat Nov 13, 2021 9:06 pm America/New_York
Forum: Questions/Comments
Question: Call l2bin with Python
Replies: 2

Re: Call l2bin with Python

Apologies if this question appears twice - it's not clear if the initial submission went through. I have also made posts that seem to have vanished. I think your basic question has been answered, but I assume you are using Python to script batch processing, so plan to run l2gen many times. One thin...
by gnwiii
Thu Nov 11, 2021 7:19 am America/New_York
Forum: Questions/Comments
Question: SeaDAS 8 install_OCSSW problem with python requests
Replies: 45

Re: SeaDAS 8 install_OCSSW problem with python requests

Can you try /Users/bcollist/opt/anaconda3/bin/python3 -m pip install requests You need Python requests package v2.18.0 or later With anaconda python you should use: https://anaconda.org/anaconda/requests (currently shows version 2.23 for macOS). Note that using anaconda python by setting only the P...
by gnwiii
Tue Nov 09, 2021 7:00 pm America/New_York
Forum: Questions/Comments
Question: SeaDAS 8 install_OCSSW problem with python requests
Replies: 45

Re: SeaDAS 8 install_OCSSW problem with python requests

Has any more progress been made on this issue? This isn't something that can be fixed in SeaDAS. Apple recommends that users avoid using the "system" python for applications because that usually requires changes to the installed packages. It is up to the user to ensure that the SeaDAS req...
by gnwiii
Mon Nov 08, 2021 5:50 pm America/New_York
Forum: Questions/Comments
Question: Recompiling SeaDAS processing C source code
Replies: 3

Re: Recompiling SeaDAS processing C source code

I doubt there is any reliable shortcut -- just follow NASA's instructions. If you stick with the same compiler versions NASA uses you should not encounter the problems that arise using different OS's. The build uses CMake, which does rather extensive checking to for the required libraries and header...
by gnwiii
Mon Nov 08, 2021 10:16 am America/New_York
Forum: Questions/Comments
Question: Recompiling SeaDAS processing C source code
Replies: 3

Re: Recompiling SeaDAS processing C source code

As I need to run SeaDAS processing SW with some modifications, for research purposes, I'd need to modify some C source programs and recompile l2gen executable. Is it possible to get somewhere the makefile or any other instruction to recompile l2gen (or all the SeaDAS processing executable)? See: ht...
by gnwiii
Fri Nov 05, 2021 2:51 pm America/New_York
Forum: Questions/Comments
Question: Extract L1A MODIS SeaDAS 8.1.0 OCSSW
Replies: 10

Re: Extract L1A MODIS SeaDAS 8.1.0 OCSSW

Using these in the extractor on the L1A file appeared to work, but when processed up to L2, it's the wrong region (and must be over all cloud). Even if it had worked that way, the approach sort of defeats my objective to reduce processing time and disk usage by subsetting prior to processing L1B/L2...
by gnwiii
Fri Nov 05, 2021 8:13 am America/New_York
Forum: Questions/Comments
Question: SeaDAS 8.1.0 installation error
Replies: 17

Re: SeaDAS 8.1.0 installation error

https://seadas.gsfc.nasa.gov/requirements/ says MacOS distributions include a suitable Java JRE, but that may be outdated. A recent JRE such as the one in the link you mention will be widely used, so any Big Sur problems should be found and fixed. SeaDAS uses the SNAP Java GUI, but ESA SNAP support...