Search found 601 matches

by gnwiii
Wed Apr 07, 2021 8:10 am America/New_York
Forum: All Questions/Comments
Question: Chla+SST 1km Modis-Aqua L2 to L3m (SeaDAS 7.5.1) and L4 (DINEOF)
Replies: 8

Re: Chla+SST 1km Modis-Aqua L2 to L3m (SeaDAS 7.5.1) and L4 (DINEOF)

Thank you very much Sean and Danny, your answers help me a lot.Danny, I work with Matlab to perform statistical analysis and as you say, I can't work with binned data since I need regular matrices.Taking the recommendations of Sean and because I need high resolution (the islands are very small) and...
by gnwiii
Wed Apr 07, 2021 7:52 am America/New_York
Forum: All Questions/Comments
Question: OCSSW Processor - MODIS
Replies: 16

Re: OCSSW Processor - MODIS

The error indicates that you did not source "$OCSSWROOT/OCSSW_bash.env": gwhite@cerberus ~/ocssw/bin % ./update_luts -v aqua expected str, bytes or os.PathLike object, not NoneType Traceback (most recent call last): File "/home/gwhite/ocssw/bin/./update_luts", line 63, in <module...
by gnwiii
Wed Apr 07, 2021 7:41 am America/New_York
Forum: All Questions/Comments
Question: MODIS SST product
Replies: 21

Re: MODIS SST product

Why bin to lower resolution? For water, binning over time is affected by water motion, which has a smoothing effect. Using a high resolution for monthly data costs more in storage, processing, and download times without adding information. With a simple binning algorithm, binning at high resolutions...
by gnwiii
Tue Apr 06, 2021 7:51 pm America/New_York
Forum: All Questions/Comments
Question: OCSSW Processor - MODIS
Replies: 16

Re: OCSSW Processor - MODIS

Error: return = 1 : trying to run command = /home/torres609/SeaDAS/ocssw/bin/ocssw_runner --ocsswroot /home/torres609/SeaDAS/ocssw update_luts modisa This is the last step in the installation, so you can complete the installation by running "update_luts modisa" in a terminal, or, for more...
by gnwiii
Tue Apr 06, 2021 10:43 am America/New_York
Forum: All Questions/Comments
Question: Aqua and SST NC dataset questions
Replies: 6

Re: Aqua and SST NC dataset questions

The range [0.01, 28] is appropriate for the North Atlantic open ocean, where in situ measurements have not exceeded 28 (up to early 2000's).
by gnwiii
Tue Apr 06, 2021 9:20 am America/New_York
Forum: All Questions/Comments
Question: How to get the reflectivity from water by modis on seadas
Replies: 6

Re: How to get the reflectivity from water by modis on seadas

It might be useful to attach the output from ncdump -h level-2file > file_to_attach.txt or paste the flag percentages group into a message. It should look like: group: flag_percentages { // group attributes: :ATMFAIL = 0.002910551f ; :LAND = 58.34771f ; :PRODWARN = 0.f ; :HIGLINT = 8.01977f ; :HILT ...
by gnwiii
Tue Apr 06, 2021 8:56 am America/New_York
Forum: All Questions/Comments
Question: Aqua and SST NC dataset questions
Replies: 6

Re: Aqua and SST NC dataset questions

1 - LAT AND LON VARIATION. For the cylindrical equidistant projection, the exact positions are spaced by 180/N, where N is the number of latitudes. The actual values are computed using floating point math, and stored in single-precision. For N=4320, 180/N = 1/24 which gives 0.04166... where ".....
by gnwiii
Fri Apr 02, 2021 3:06 pm America/New_York
Forum: All Questions/Comments
Question: SeaDAS 8 install_OCSSW problem with python requests
Replies: 33

Re: SeaDAS 8 install_OCSSW problem with python requests

I'm glad you got it working. There are, however, other people having problems with python for ESA SNAP snappy on macOS, and I expect SeaDAS 8 users will also get snappy with the final release, so it would be nice to understand how macOS manages the PATH. It seems to me that the default path is someh...
by gnwiii
Fri Apr 02, 2021 2:57 pm America/New_York
Forum: All Questions/Comments
Question: MODIS SST product
Replies: 21

Re: MODIS SST product

Regarding "SST can provide data with some cloud cover where there will be no visible range data". SST uses wavelengths outside the visible range. There are also microwave SST sensors that can provide data in cloudy conditions. For some use cases (e.g., using chlor_a and SST together to imp...