Search found 63 matches

by alaroy
Thu Aug 29, 2019 11:48 am America/New_York
Forum: Questions/Comments
Question: Getting the size of a file via API
Replies: 1

Getting the size of a file via API

Is there any way to determine the byte size of a file on your data server using the file_search, getfile or other cgi tools?We have cases where we want to ignore files below a certain size. It would also be nice to compare the remote and local file sizes to verify that the file wasn't truncated....
by alaroy
Fri Aug 09, 2019 7:27 am America/New_York
Forum: Questions/Comments
Question: getfile not working
Replies: 4

getfile not working

Brock,

It looks like the download issue you're seeing is affecting everything not just the ancillary data.

On a whim I checked our other subscriptions (which are all for L2 data). It looks like we stopped downloading any new data between 15:00 and 17:00 UTC yesterday (8/8).

-Andrew L.
by alaroy
Thu Aug 08, 2019 11:13 pm America/New_York
Forum: Questions/Comments
Question: getfile not working
Replies: 4

getfile not working

When I try to download data with the getfile api it fails with an error of the form$ wget --no-use-server-timestamps --read-timeout=10 -O /tmp/A2019219181000.L1A_LAC.bz2 https://oceandata.sci.gsfc.nasa.gov/cgi/getfile/A2019219181000.L1A_LAC.bz2--2019-08-09 02:58:51--  https://oceandata.sci.gsfc...
by alaroy
Wed Aug 07, 2019 6:45 pm America/New_York
Forum: Questions/Comments
Question: subscription not updating
Replies: 0

subscription not updating

Usually by this time of day we have received most or all of the data for our subscription #2130 (basically MODISA L1A files over the US east coast), however we don't have any even when querying the search cgi manually. Could you please look into it? Thank youWe have a validation campaign beginning e...
by alaroy
Wed Aug 07, 2019 1:32 pm America/New_York
Forum: Questions/Comments
Question: l2gen trouble reading SST ancillary file
Replies: 1

l2gen trouble reading SST ancillary file

I'm getting the following error on two different computers when running l2gen on a MODISA granule...Loading DEM info from /marine-services/ocssw/share/common/ETOPO1_ocssw.nc-E- /home/seadas/ocssw/src/l2gen/sstref.c : Unable to initialize SST file/marine-services/ocssw/var/anc/2019/212/N2019212_S...
by alaroy
Wed Jul 03, 2019 3:27 pm America/New_York
Forum: Questions/Comments
Question: Pixel day/night determination within SST L2
Replies: 1

Pixel day/night determination within SST L2

If I have an L2 SST granule with the day_night_flag set to "Mixed", is there a method to determine which pixels within the granule are day vs night vs dusk?

Is the answer any different for VIIRS NPP vs VIIRS N20 vs MODISA?

-Andrew L.
by alaroy
Thu May 02, 2019 10:20 pm America/New_York
Forum: Questions/Comments
Question: Cloud flagging adjustments
Replies: 3

Cloud flagging adjustments

Sean,Thank you, as always, for your helpful hints. I tried with the straylight flag and while it removed almost all of the cloud contamination (yaay!) it also dropped more pixels than we would like :(.You said the flag is based on reflectance at 869nm - is that rrs_869, rhos_869, the cloud_albedo pr...
by alaroy
Thu May 02, 2019 12:01 am America/New_York
Forum: Questions/Comments
Question: Cloud flagging adjustments
Replies: 3

Cloud flagging adjustments

Hi again SeaDAS'ers :)Is there a way (or ways) to adjust the cloud flag determination in l2gen to be "more aggressive" in flagging cloudy pixels? I'm finding that we're getting contaminated data (for the purpose of our algorithm) at / near the edge of cloudy areas.In case it ma...
by alaroy
Wed May 01, 2019 11:50 pm America/New_York
Forum: Questions/Comments
Question: modis_L1B.py not making HKM file for A2019120081000.L1A_LAC
Replies: 4

modis_L1B.py not making HKM file for A2019120081000.L1A_LAC

Sean,

Thank you for the explanation. It sounds like that granule has a bit of an "identity crisis"...

I ended up changing my scripts to ignore abnormally small L1A files.

-Andrew L.
by alaroy
Tue Apr 30, 2019 4:38 pm America/New_York
Forum: Questions/Comments
Question: modis_L1B.py not making HKM file for A2019120081000.L1A_LAC
Replies: 4

modis_L1B.py not making HKM file for A2019120081000.L1A_LAC

Thank you Sean, that would make sense...

For some reason that night time granule turned up in a subscription that was supposed to be day only (id #2130) you might want to double check the selection logic.