virus installation issues lots seadas 7.5

mamontes · by **mamontes** » Fri Mar 01, 2019 1:17 pm America/New_York

Dear Sean
I wonder about this issue. see below. MODIS terra and aqua selected too

Python version acceptable
Installing aqua-luts (13 of 14)
Installing viirsnpp-luts (14 of 14)
Exception: [Errno 54] Connection reset by peer
Traceback (most recent call last):
File "/Applications/seadas-7.5.1/ocssw/scripts/update_luts.py", line 66, in <module>
luts.get_luts()
File "/Applications/seadas-7.5.1/ocssw/scripts/modules/LutUtils.py", line 132, in get_luts
regex='^((?!\d+).)*' + suffix, check_times=True)
File "/Applications/seadas-7.5.1/ocssw/scripts/modules/JsonUtils.py", line 280, in download_allfiles
set_mtime(filepath, link['mtime'])
File "/Applications/seadas-7.5.1/ocssw/scripts/modules/JsonUtils.py", line 72, in set_mtime
os.utime(filepath, times=(atime, mtime)) # python 3
FileNotFoundError: [Errno 2] No such file or directory
Error - Could not install luts for viirsn

by **OB.DAAC - SeanBailey** » Mon Mar 04, 2019 6:46 pm America/New_York

> Exception: [Errno 54] Connection reset by peer

network issue. either rerun the install, or just manually call update_luts.py to pull down the VIIRS LUTs

Sean

mamontes · by **mamontes** » Wed Mar 06, 2019 9:31 am America/New_York

thanks Sean!

mamontes · by **mamontes** » Wed Mar 06, 2019 10:50 am America/New_York

Hi Sean
I was able to produce a L1B virus however I have issues when I am trying to obtain the L2 using l2gen
it is saying that the file is not a valid input mission

below the filename
/Applications/seadas-7.5.1/images/viirs/V2018231182400.L1-BM_SNPP.nc

I don't see any spaces in the filename so what is missing?

thanks in advance
Martin

mamontes · by **mamontes** » Wed Mar 06, 2019 10:53 am America/New_York

and sorry about the virus typo instead of viirs, this deep learning automatic replacements are a real pain!

by **OB SeaDAS - dshea** » Wed Mar 06, 2019 10:58 am America/New_York

did you also make and pass in the geolocation file? This is needed for l2gen processing of VIIRS

What is the command line you used?

mamontes · by **mamontes** » Wed Mar 06, 2019 11:02 am America/New_York

Sean
I opened the L1B viirs and it is showing the image in the central pixels ok. Pixels to the left and right are just ugly with banding. detector issues? bowtie effects?
thanks for the insight
Martin

by **OB SeaDAS - dshea** » Wed Mar 06, 2019 11:05 am America/New_York

That is normal (though ugly). This the the bowtie deletion feature, where VIIRS saves bandwith by not sending down the overlapping pixels on the edges of the scan.

don

mamontes · by **mamontes** » Wed Mar 06, 2019 11:18 am America/New_York

Sean
I am not using command lines. Just l2gen gui. The geo was obtained along with L1A files so no need to generate one. So I have the geo but I can't find anywhere in l2gen where to input this info. Do I need to use a different processor? Is the l2gen not grabbing the L1B correctly thus it doesn't
show the geo input box ?

Martin

by **OB SeaDAS - knowles** » Wed Mar 06, 2019 12:18 pm America/New_York

What is the full error message when it returns "file is not a valid input mission"? There should be Mission=something at the end of the message.

You could also try to use the level1A file as the input file to l2gen. I'm assuming you already have installed the VIIRS processors since you are using a level1B file which you must have processed from a level1A file.

Of note is that SeaDAS version 7.5.3 now supports VIIRS-J1. You might try upgrading and it may fix your current problem as well.

Danny