Search found 69 matches

by zhigang
Tue Jan 15, 2019 9:29 am America/New_York
Forum: Questions/Comments
Question: How to compress the L2 output in SeaDAS
Replies: 2

How to compress the L2 output in SeaDAS

Dear all,I generated some L2 products of Landsat 8 OLI with SeaDAS 7.5.1, the working flow is ok, just one thing needs to be solved. One L2 output is ~800M for Landsat 8 OLI, it is so large. If I have lots of data to be processed in the near future, they will need large spaces of the disk. Therefore...
by zhigang
Wed May 30, 2018 10:34 pm America/New_York
Forum: Questions/Comments
Question: Error: No data product writer for the 'HDF5' format available in gpt.sh (v7.5)
Replies: 3

Error: No data product writer for the 'HDF5' format available in gpt.sh (v7.5)

Thanks, Don. So, for now, I have to write a NetCDF4 file.
by zhigang
Wed May 30, 2018 3:45 am America/New_York
Forum: Questions/Comments
Question: Error: No data product writer for the 'HDF5' format available in gpt.sh (v7.5)
Replies: 3

Error: No data product writer for the 'HDF5' format available in gpt.sh (v7.5)

Greetings,I would like to export the L2_LAC_OC file to HDF5 file via gpt.sh (v7.5) in command line, but it didn't work. The error is :[optics@localhost tmp]$ /home/optics/seadas-7.5/bin/gpt.sh /home/optics/tmp/A2017243214000_gpt.xml -t /mnt/da81fa5a-016e-4718-a7ed-b89f4cd59da5/saltonsea/A2017243...
by zhigang
Thu May 24, 2018 9:10 am America/New_York
Forum: Questions/Comments
Question: problem in processing of MODIS L1A file to MODIS GEO file
Replies: 5

problem in processing of MODIS L1A file to MODIS GEO file

Dear Gwyn,I also have this problem in modis_GEO.py. The details of error was:root@vultr:~# modis_GEO.py A2018144055000.L1A_LAC Traceback (most recent call last):  File "/root/ocssw/scripts/modis_GEO.py", line 187, in <module>    sys.exit(main())  File "/root/ocssw/...
by zhigang
Fri May 11, 2018 11:45 am America/New_York
Forum: Questions/Comments
Question: possible issue with v7.5 lut updater?
Replies: 12

possible issue with v7.5 lut updater?

Yes, I am looking for other similar softwares of vpn to replace the privoxy! After that, the https is the mainstream. :)

Zhigang
by zhigang
Fri May 11, 2018 1:36 am America/New_York
Forum: Questions/Comments
Question: possible issue with v7.5 lut updater?
Replies: 12

possible issue with v7.5 lut updater?

Dear Gwyn,I tried again today, it still failed. And I searched the prolem in google, it caused by the privoxy. In China, I cannot directly access the ocean color and its service, now I used the privoxy to access oceancolor website. The privoxy cannot support the intercepting encrypted connections (H...
by zhigang
Fri May 11, 2018 12:06 am America/New_York
Forum: Questions/Comments
Question: ERROR: geogen_modis failed to produce a geolocation file
Replies: 7

ERROR: geogen_modis failed to produce a geolocation file

Thanks a lot Danny.

Yes, the L1A_LAC.x.hdf is extracted from the full file in ocean color browser. That's exciting for the SeaDAS 7.5 release, I will updated the lastest version and then try again.

Best,
Zhigang
by zhigang
Thu May 10, 2018 7:54 am America/New_York
Forum: Questions/Comments
Question: ERROR: geogen_modis failed to produce a geolocation file
Replies: 7

ERROR: geogen_modis failed to produce a geolocation file

Dear Don,I am getting this error again. And according to your suggestions, I updated the ocssw via install_ocssw.py, but it still failed. Then, I remove the all files in the directory of ocssw, and re-installed the ocssw via: ./install_ocssw.py --install-dir=./ocssw --git-branch=v7.4 --aqua --terra ...
by zhigang
Thu May 10, 2018 3:19 am America/New_York
Forum: Questions/Comments
Question: possible issue with v7.5 lut updater?
Replies: 12

possible issue with v7.5 lut updater?

Dear Gwyn?Today, I updated luts of aqua in v7.5 branch, but a exception was thrown. The detail was:[optics@localhost seadas-7.4]$ update_luts.py aqua --verboseDownloading files into /home/optics/seadas-7.4/ocssw/var/modisBad response for https://oceandata.sci.gsfc.nasa.gov/Ancillary/LUTs/modis/?form...
by zhigang
Mon May 07, 2018 11:05 pm America/New_York
Forum: Questions/Comments
Question: l2bin and l3mapgen issues
Replies: 4

l2bin and l3mapgen issues

Dear Don,

For those pixels in turbid lakes, they are easily taken as cloud or sunglint, I think these caused the HILT. Now, I have solved the problem of l2bin with the help of Danny.

Regards,
Zhigang