Search found 11 matches

by alsahli
Sat Aug 05, 2023 8:26 am America/New_York
Forum: Questions/Comments
Question: Aerosol correction is not working for Sentinel 2 MSI data
Replies: 5

Re: Aerosol correction is not working for Sentinel 2 MSI data

Hi there,
Any update on this issue? I face the same problem.
I need to process the S2A L1C image to L2, but I end up with NaNs values as described by the other users above.

Best,
Mohammad
by alsahli
Wed Oct 17, 2018 4:02 pm America/New_York
Forum: Questions/Comments
Question: Math Expression
Replies: 5

Math Expression

Thanks Danny that's very helpful.
by alsahli
Fri Oct 05, 2018 12:04 pm America/New_York
Forum: Questions/Comments
Question: Math Expression
Replies: 5

Math Expression

Danny,
I used Mosaic tool. I got two bands. One is the Rrs_555, and the other is Rrs_555_count. Is the first band the sum of mosaic bands or the average?

Another question! Can I mosaic L2 images directly or I have to reproject them first?

Many thanks,
Mohammad
by alsahli
Fri Oct 05, 2018 11:41 am America/New_York
Forum: Questions/Comments
Question: Math Expression
Replies: 5

Math Expression

Thanks Danny,

I am going to try your suggestion.

Mohammad
by alsahli
Thu Oct 04, 2018 8:14 am America/New_York
Forum: Questions/Comments
Question: Math Expression
Replies: 5

Math Expression

Hi there,I have an issue using Math Band tool. I am trying to calculate the mean of Rrs_555 bands (MODIS Aqua). I could not find a function of mean to automatically calculate these bands. Also, I could not find informative documents in the help links regarding to my point. Anyway, I tried to calcula...
by alsahli
Thu Jul 26, 2018 1:08 pm America/New_York
Forum: Questions/Comments
Question: Running SeaDAS-7.5.1
Replies: 2

Running SeaDAS-7.5.1

Thanks Danny for your replay,You are right. GUI did not appear. I was using the command line.I guess that there was some thing wrong with java. Anyway, I decided to switch to Ubuntu operating system. It is more convenience operating system than fedora. Also, SeaDAS team provided step by step tutoria...
by alsahli
Tue Jul 24, 2018 7:29 pm America/New_York
Forum: Questions/Comments
Question: Running SeaDAS-7.5.1
Replies: 2

Running SeaDAS-7.5.1

Hi there,I am using fedora 28 64 bit, the latest version of fedora. The system has:    Bash version 4.4.19    Python 2.7.14    Git  version 2.17.0    cURL  7.59.0I downloaded seadas7.5.1 and run the command (sh seadas_7.5.1_linux64_installer.sh) in t...
by alsahli
Fri Oct 27, 2017 10:54 am America/New_York
Forum: Questions/Comments
Question: An issue in processing MODIS L1A to L1B
Replies: 4

An issue in processing MODIS L1A to L1B

Thanks for the replay,

Where can I use these commands?
Are these commands written in the terminal or in a certain place in SeaDAS.

Any hint would be highly appreciated!
Mohammad
by alsahli
Thu Oct 26, 2017 2:18 pm America/New_York
Forum: Questions/Comments
Question: An issue in processing MODIS L1A to L1B
Replies: 4

An issue in processing MODIS L1A to L1B

Hi there,

I am using fedora 26 (64bit) and SeaDAS7.4. I encountered an issue when trying to process MODIS L1A to LB1 is that modis_LB1.py could not recognize the geo file generated by modis_GEO.py. I got this message:
[img]Screenshotfrom2017-10-2621-03-41.png[/img]

Thanks in advance,
Mohammad
by alsahli
Tue Oct 24, 2017 7:53 am America/New_York
Forum: Questions/Comments
Question: install_ocssw.py failed with exit code 1.
Replies: 3

install_ocssw.py failed with exit code 1.

Thanks Sean for the replay,I did what you suggested. Then, I tried to install the install_ocssw.py again. Although, the tools became active,I could not process Level-A1 MODIS. I closed the software and opened it again to re-install the install_ocssw.py. I  ended with the following error message...