Search found 260 matches

by OB SeaDAS - dshea
Wed Oct 25, 2017 8:56 am America/New_York
Forum: Home
Question: Creation of level 3 Kd_490 files
Replies: 6

Creation of level 3 Kd_490 files

a 250m file is going to be pretty big.  Processing it with l2gen on the command line should not be a problem, but loading the file into SeaDAS might fill up your memory.  How much RAM did you allocate to your virtual machine?

don
by OB SeaDAS - dshea
Fri Sep 29, 2017 9:23 am America/New_York
Forum: Home
Question: SeaDAS 7.4 manual
Replies: 5

SeaDAS 7.4 manual

We will need a bit more information to help answer this question.

What OS are you using?
What Java are you using?

I have seen problems like this on Linux when using openJDK.  If that is the case we suggest using the JDK from Oracle.\

Hope that helps.

don
by OB SeaDAS - dshea
Mon Sep 25, 2017 2:44 pm America/New_York
Forum: Home
Question: Installing the OCSSW Processors on Windows
Replies: 2

Installing the OCSSW Processors on Windows

The Processors can not be installed on Windows.  Only unix and Mac can run the processors.

don
by OB SeaDAS - dshea
Mon Sep 11, 2017 10:22 am America/New_York
Forum: Home
Question: Do L2 SNPP SST data have a flag to distinguish day/night SST?
Replies: 9

Do L2 SNPP SST data have a flag to distinguish day/night SST?

If you want to get per pixel day/night information, run l2gen and add "solz" to the product output list.  Then you will have a per pixel solz.  If solz > 90, you have a nighttime pixel.

don
by OB SeaDAS - dshea
Mon Sep 11, 2017 10:02 am America/New_York
Forum: Home
Question: OCI algorithm and OCx algorithm
Replies: 7

OCI algorithm and OCx algorithm

The chlor_a data field in our L2 files are a blend of the CI algorithm for low chlorophyll retrievals and the OCx  algorithm for higher retrievals.  The documentation you sited is correct.

don
by OB SeaDAS - dshea
Fri Sep 08, 2017 12:55 pm America/New_York
Forum: Home
Question: Do L2 SNPP SST data have a flag to distinguish day/night SST?
Replies: 9

Do L2 SNPP SST data have a flag to distinguish day/night SST?

Every L2 file has a global attribute "day_night_flag".  It is a string and has Day, Night, Mixed, or Unknown stored in it.  It that what you are looking for?

don
by OB SeaDAS - dshea
Mon Aug 28, 2017 10:55 am America/New_York
Forum: Home
Question: confusing getanc.py behaviour
Replies: 10

confusing getanc.py behaviour

Strange.  Once the script gets the start time, it should not care what kind of file you used as input.  I'll take a look at the script and see if I see anything that could cause this.

don
by OB SeaDAS - dshea
Mon Aug 28, 2017 10:23 am America/New_York
Forum: Home
Question: confusing getanc.py behaviour
Replies: 10

confusing getanc.py behaviour

Unfortunately, getanc.py works fine for me on that L1A MODIS file.  Try the verbose option to see if the script gets the date correct.

getanc.py -v A2017184170500.L1A_LAC

don
by OB SeaDAS - dshea
Wed Aug 23, 2017 3:43 pm America/New_York
Forum: Home
Question: l2gen error that references ...seadas-viirs-v2.0/seadas/build/src/l2gen/prodgen.c
Replies: 9

l2gen error that references ...seadas-viirs-v2.0/seadas/build/src/l2gen/prodgen.c

tilt is in every L2 file.  On the other hand ntilts, tilt_flags, and tilt_ranges have never been written to NetCDF L2 files and have not been populated in HDF L2 files for over 10 years.  They are added as a VGroup, but never filled in as far as I can tell.  I stopped looking backward...
by OB SeaDAS - dshea
Wed Aug 23, 2017 9:59 am America/New_York
Forum: Home
Question: MODIS-Aqua POC data June 2014 onwards
Replies: 1

MODIS-Aqua POC data June 2014 onwards

The SMI files after May 2014 are produced by l3mapgen instead of smigen.  The new files are smaller since the poc data is stored as a scaled 16 bit int instead of a 32 bit float.  As you noticed, the file size is almost 3 times smaller.  From the NetCDF metadata:  short poc(lat, ...