Search found 711 matches

by gnwiii
Sat Oct 29, 2022 11:09 am America/New_York
Forum: Questions/Comments
Question: Removing high chlor_a before binning
Replies: 4

Re: Removing high chlor_a before binning

Using a fixed upper limit doesn't handle all the implausible pixels (e.g., a cloud edge pixel value outside the plausible range for the time and location). You can apply filters on individual level-2 images to identify pixels with value well outside the range of values for neighboring pixels. You ma...
by gnwiii
Fri Oct 28, 2022 11:08 am America/New_York
Forum: Questions/Comments
Question: Where is the Variables of time in the LV3 Chlorophyll data from MODIS-aqua?
Replies: 3

Re: Where is the Variables of time in the LV3 Chlorophyll data from MODIS-aqua?

It is worth mentioning that the Climate Data Operators ( https://code.mpimet.mpg.de/projects/cdo ) allow you to add time to OBPG netcdf level-3 files and merge them into a single file in batch processing. CDO is available on Windows using Cygwin64, from anaconda.org for linux and macOS, and as packa...
by gnwiii
Tue Oct 25, 2022 7:55 pm America/New_York
Forum: Questions/Comments
Question: Error in building the science processing software used within OBPG
Replies: 7

Re: Error in building the science processing software used within OBPG

You don't mention your OS, so I can only offer general advice: use your system's package management tools to find the package that provides the rpc.h file. Over the years there have been changes to the package names. For linux, https://sourceware.org/pipermail/libc-announce/2020/000029.html mentions...
by gnwiii
Wed Sep 28, 2022 7:57 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

I have tried many of the suggestions within this thread, however, I am still getting: ModuleNotFoundError: No module named 'requests' when trying to install the hico processor from the GUI. I am running macOS Big Sur V11.7 You should provide enough detail so others can reproduce the problem. I assu...
by gnwiii
Wed Aug 17, 2022 2:08 pm America/New_York
Forum: Questions/Comments
Question: Reprojecting Modis data using python
Replies: 5

Re: Reprojecting Modis data using python

NetCDF4-CF has good metadata support and supports internal compression. BEAM DIMAP is useful as an intermediate format when subsequent processing will be done using SNAP or SeaDAS 8, but is not as well supported by 3rd party software and does not support internal compression. Modern CPU's do interna...
by gnwiii
Wed Aug 17, 2022 10:54 am America/New_York
Forum: Questions/Comments
Question: Reprojecting Modis data using python
Replies: 5

Re: Reprojecting Modis data using python

ESA SNAP snappy uses the jpy java-python bridge and can map MODIS level-2 files, but the mapped data will be a Java object so there is consierable overhead if you want the mapped data in Python. For native Python with MODIS data: https://python-geotiepoints.readthedocs.io/en/latest/#example-aqua-ter...
by gnwiii
Fri Jul 08, 2022 7:12 am America/New_York
Forum: Questions/Comments
Question: SeaDAS MODIS Cloud Mask
Replies: 3

Re: SeaDAS MODIS Cloud Mask

The problem I'm running into here is that the MODIS product MOD35_L2 isn't an easy binary mask, the actual cloud mask is a 48-bit band that is kind of tricky to work with, so it doesn't even show up in the "Bands" section of its product. Show single flags isn't an option for this product ...
by gnwiii
Thu Jun 02, 2022 12:44 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

[...] The simplest solution is to append that python path to your sys.path list. In your notebook, first try: import sys sys.path.append('my/path/to/module/folder') The popularity of Python means there are more and more clashes between very different libraires with the same name as well as multiple...
by gnwiii
Wed Jun 01, 2022 12:37 pm America/New_York
Forum: Questions/Comments
Question: ‘p’ is not recognized as an internal or external command, operable program or batch file when using wget on Windows10
Replies: 5

Re: ‘p’ is not recognized as an internal or external command, operable program or batch file when using wget on Windows1

Although they don't seem to mention it, the instructions at <https://oceancolor.gsfc.nasa.gov/data/download_methods/> are for linux or macOS and will need extensive changes for use on Windows. In my experience, there are many versions of wget.exe for Windows, but many are old or otherwise limited an...
by gnwiii
Sat Apr 30, 2022 11:19 am America/New_York
Forum: Questions/Comments
Question: l2gen Try doing atomsphreic correction
Replies: 4

Re: l2gen Try doing atomsphreic correction

Ubuntu20 under VMWare. It's very vary Strange. I just update my OCSSW with selecting the "Clean install", and then I did it. Thank you a lot for your reply! I saw an error similar to your report: -E- Invalid argument "avw_coef" avw_coef (string) (current=[-1.8010144475E+05,1.786...