Search found 623 matches

by gnwiii
Mon Oct 25, 2021 8:21 am America/New_York
Forum: All Questions/Comments
Question: MODIS Aqua Chl-a Product
Replies: 7

Re: MODIS Aqua Chl-a Product

The MODIS instrument is constantly scanning. Aqua's orbit goes over the poles and takes about 99 minutes: https://en.wikipedia.org/wiki/Aqua_(satellite) , so over 24 hours you get 14.5 orbits. Generally you can download 5 minutes of data as a "granual", see: https://modis-images.gsfc.nasa....
by gnwiii
Fri Oct 22, 2021 12:51 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: 36

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

I don't see anything in your post that explains: # WARNING!!! Mission directory 'C:\home\negri\ocssw\share\olci' does not exist Normally, OLCI sensor-specific files are found in $OCDATAROOT/olci . The value of OCDATAROOT should be set in OCSSW_bash.env . Since the benchmark script works, MODIS Aqua ...
by gnwiii
Thu Oct 21, 2021 3:02 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: 36

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

Step 7: II. ./install_ocssw --instal_dir $HOME/ocssw –tag V2021.2 --seadas --olcis3a --olcis3b --msis2a --msis2b --oli --benchmark has a small but critical typo -- "--instal_dir" should be "--install_dir" (two "ells"). I'm not sure why there is "ll." at the st...
by gnwiii
Mon Oct 18, 2021 11:43 am America/New_York
Forum: All Questions/Comments
Question: Search and download data files
Replies: 5

Re: Search and download data files

Thanks for your help. Unfortunately I have to stick with cURL now as I am retired and my colleague needs time to develop new scripts in Python - and the present scripts (in bash) are really too long. The best way to go is to fix now what is really needed in the present script (working with cURL) to...
by gnwiii
Sun Oct 17, 2021 7:46 am America/New_York
Forum: All Questions/Comments
Question: Outdated Planetary Ephemeris in OCSSW Distribution
Replies: 1

Re: Outdated Planetary Ephemeris in OCSSW Distribution

-b v7.5 has been replaced by the current version, which is now identified by "tag". There are likely more changes than just the ephemeris data. Using a "tag" means everyone can have the same commits. The "branch" always includes recent commits, so what you have may dep...
by gnwiii
Fri Oct 15, 2021 3:31 pm America/New_York
Forum: All Questions/Comments
Question: Search and download data files
Replies: 5

Re: Search and download data files

There have been changes, see <https://oceancolor.gsfc.nasa.gov/data/download_methods/>. For me, the "obdaac_download" python script mentioned in this document has been more reliable than my existing scripts using curl or wget. For bulk downloads I prefer to use the search mechanism to get ...
by gnwiii
Fri Oct 15, 2021 8:43 am America/New_York
Forum: All Questions/Comments
Question: modis_GEO.py failures
Replies: 3

Re: modis_GEO.py failures

If you are using wget, there is an option to have the file extension reset to match the contents. For bulk downloads, you can use the file search to download a list of files with checksums. At one time I was getting corrupt downloads at a rate of 10%, so using checksums was very helpful.
by gnwiii
Mon Sep 20, 2021 9:03 pm America/New_York
Forum: All Questions/Comments
Question: Viirs Processing issue
Replies: 10

Re: Viirs Processing issue

I noticed "/home/1097". Few if any linux distros support usernames that start with a number. "man useradd" should give the rules for usernames on your distro, but even if they are allowed, you may encounter 3rd party software that breaks when it encounters a username that starts ...
by gnwiii
Fri Sep 17, 2021 5:35 pm America/New_York
Forum: All Questions/Comments
Question: Question related SST
Replies: 2

Re: Question related SST

There are many reasons for the general SST_day > SST_night expectation to fail, including diel patterns in wind velocity and direction, clouds, and biases in ancillary products. Years ago, while working on methods to determine dynamic boundaries for Longhurst's regions, I compared day and night SST ...
by gnwiii
Tue Sep 14, 2021 10:02 am 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: 36

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

It seems that the file "ocssw.db" does not exist, because when I use the command: find . -name "ocssw.db" I have no return. Please, could you tell me which folder the file "ocssw.db" is supposed to be in? Check the permissions for the directory tree you are using. Note...