Search found 15 matches

by OB ScienceSW - jlindo1
Fri Jul 17, 2026 9:40 am America/New_York
Forum: Home
Question: About batch processing(subset)
Replies: 1

Re: About batch processing(subset)

Hi there,

Would you mind pasting the shapefile and the name of the data file you're using?

Best,
Jakob
by OB ScienceSW - jlindo1
Wed Jun 24, 2026 3:39 pm America/New_York
Forum: Home
Question: Problem with geolocating an extracted VIIRS JPSS1 file
Replies: 1

Re: Problem with geolocating an extracted VIIRS JPSS1 file

Hello,

Thank you for your patience with this.

Would you please provide the extract parameters you were using?

Best,
Jakob
by OB ScienceSW - jlindo1
Fri May 08, 2026 11:22 am America/New_York
Forum: Home
Question: VIIRS NOAA-21 CLDICE vs NOAA-20
Replies: 9

Re: VIIRS NOAA-21 CLDICE vs NOAA-20

Hi, Thank you for your patience with this. This bug essentially makes l2gen skip atmospheric correction on the granule in question. I would suppose, then, that it would affect other products, any that require atmospheric correction. It seems that this particular issue affects JPSS1 specifically, we ...
by OB ScienceSW - jlindo1
Thu Apr 16, 2026 9:33 am America/New_York
Forum: Home
Question: VIIRS NOAA-21 CLDICE vs NOAA-20
Replies: 9

Re: VIIRS NOAA-21 CLDICE vs NOAA-20

Hello,

I dug deeper into this issue and found a problem with one of the LUTs used in VIIRS calibration. We're working on a fix.

Best,
Jakob
by OB ScienceSW - jlindo1
Tue Mar 31, 2026 3:54 pm America/New_York
Forum: Home
Question: l2gen MODIS Aqua segmentation fault with N, S, E, W bounds
Replies: 2

Re: l2gen MODIS Aqua segmentation fault with N, S, E, W bounds

Hello, Thank you for bringing this to our attention. We've been looking into this issue and have found that it was a simple memory allocation error. I won't bore you with the details, so, put simply, using NSEW parameters caused a bug to rear its ugly head in MODIS' L1 reader. There is nothing requi...
by OB ScienceSW - jlindo1
Fri Mar 27, 2026 3:21 pm America/New_York
Forum: Home
Question: VIIRS NOAA-21 CLDICE vs NOAA-20
Replies: 9

Re: VIIRS NOAA-21 CLDICE vs NOAA-20

Thank you for your patience with this. I've been stepping through a debugger and found that the L1 mask is different between the examples you showed. When converting the L1 data to L2, there is a guard against atmospheric correction if the L1 record is masked already. In the JPSS1 data in the region...
by OB ScienceSW - jlindo1
Thu Mar 19, 2026 10:17 am America/New_York
Forum: Home
Question: VIIRS NOAA-21 CLDICE vs NOAA-20
Replies: 9

Re: VIIRS NOAA-21 CLDICE vs NOAA-20

Thank you for that. I am looking through the source code and will get back to you when I have something of substance.

Best,
Jakob
by OB ScienceSW - jlindo1
Fri Mar 06, 2026 11:09 am America/New_York
Forum: Home
Question: VIIRS NOAA-21 CLDICE vs NOAA-20
Replies: 9

Re: VIIRS NOAA-21 CLDICE vs NOAA-20

Hi Julien,

Would you mind posting the filenames used to generate those images?

Best,
Jakob
by OB ScienceSW - jlindo1
Wed May 21, 2025 12:56 pm America/New_York
Forum: Home
Question: What is the workflow for reprojecting PACE OCI data?
Replies: 2

Re: What is the workflow for reprojecting PACE OCI data?

Hi there! My first question is over your reasoning for processing L1B into L2 using SREFL. Earth Data already has L2 SREFL files , and you could download them through obdaac_download as well. After downloading an SREFL file, you could run mapgen on the command line with a --projection flag to indica...