Search found 472 matches

by OB SeaDAS - xuanyang02
Fri Mar 31, 2023 11:26 am America/New_York
Forum: Questions/Comments
Question: SeaDAS Spatial Subset Issue
Replies: 1

Re: SeaDAS Spatial Subset Issue

Are you asking a question concerning the bounding box issue with the subsetting or a question about the gradual change of chlor_a of the Hawkeye data as you asked in the other posts? -- https://forum.earthdata.nasa.gov/viewtopic.php?t=4080 As I mentioned in the other posts, it's helpful that you pro...
by OB SeaDAS - xuanyang02
Fri Mar 31, 2023 10:31 am America/New_York
Forum: Questions/Comments
Question: Question About Chlorophyll Concentration Disparity
Replies: 1

Re: Question About Chlorophyll Concentration Disparity

Are you comparing Hawkeye data with MODIS (Auqa or Terra?) data on the same day and same time frame? Or the Hawkeye data on 9/29/21 and 4/9/2022, which are in your PDF file? It's best that you provide the name of the files you are comparing and the subset coordinates. It also helps if you attach the...
by OB SeaDAS - xuanyang02
Wed Mar 29, 2023 5:11 pm America/New_York
Forum: Questions/Comments
Question: V2023.0 -- MODIS L1A processing failed
Replies: 2

Re: V2023.0 -- MODIS L1A processing failed

Yes, V2023.0 has issues with both modis_L1A and modis_GEO. Please use V2022.3
by OB SeaDAS - xuanyang02
Mon Mar 27, 2023 11:24 am America/New_York
Forum: Questions/Comments
Question: issue processing ancillary data for S2 MSI on Seadas l2gen
Replies: 2

Re: issue processing ancillary data for S2 MSI on Seadas l2gen

Thanks for reporting the problem, which happens to files with "maifest.safe". We'll try to fix the problem. The work around is 1. add the -r or --refreshDB option getanc -v -r /Volumes/Tlin/LIS/LISCO/S2_MSI_L1_H/S2A_MSIL1C_20210102T154641_N0209_R011_T18TXL_20210102T174143.SAFE/manifest.saf...
by OB SeaDAS - xuanyang02
Mon Mar 27, 2023 10:19 am America/New_York
Forum: Questions/Comments
Question: Aerosol correction is not working for Sentinel 2 MSI data
Replies: 3

Re: Aerosol correction is not working for Sentinel 2 MSI data

MSI_S2A L1 file for 2023 has a new format compared to 2021, we need to figure out a way to read the L1 file with the new format for l2gen to work right and we will update here once we do.
by OB SeaDAS - xuanyang02
Mon Mar 27, 2023 10:08 am America/New_York
Forum: Questions/Comments
Question: aerosol correction not executing for R2022 datasets
Replies: 2

Re: aerosol correction not executing for R2022 datasets

MSI_S2B L1 file for 2022 has a new format compared to 2018, we need to figure out a way to read the L1 file with the new format for l2gen to work right and we will update here once we do.
by OB SeaDAS - xuanyang02
Wed Mar 22, 2023 3:54 pm America/New_York
Forum: Questions/Comments
Question: cannot use Seadas GUI but work for command line
Replies: 2

Re: cannot use Seadas GUI but work for command line

Are you running SeaDAS on MacOS Ventura?

Currently, both SeaDAS and SNAP have issues with Ventura.

See viewtopic.php?t=3850
by OB SeaDAS - xuanyang02
Tue Mar 21, 2023 4:57 pm America/New_York
Forum: Questions/Comments
Question: l2gen on LANDSAT 8,why I cant get NIR band?
Replies: 3

Re: l2gen on LANDSAT 8,why I cant get NIR band?

I did l2gen on LC08_L1TP_114036_20190122_20200829_02_T1_MTL.txt, and got 7 bands including Rrs_865. Make sure Rrs_865 or Rrs_nnn shows up as l2prod in the Parfile textArea in l2gen GUI # PRIMARY INPUT OUTPUT FIELDS ifile=/Users/*/Scenes/OLI/run/LC08_L1TP_114036_20190122_20200829_02_T1/LC08_L1TP_1140...
by OB SeaDAS - xuanyang02
Mon Mar 20, 2023 4:00 pm America/New_York
Forum: Questions/Comments
Question: l2gen and gpt processing over mid-pacific
Replies: 4

Re: l2gen and gpt processing over mid-pacific

Yes, gpt seems to have an issue with the geographic area that crosses the date line. The work around is to do mosaic twice, resulting in two files, one for the west and one for the east. The 1st time for the region west of the date line -- <westBound>175</westBound> <eastBound>179.9</eastBound> The ...
by OB SeaDAS - xuanyang02
Mon Mar 20, 2023 2:36 pm America/New_York
Forum: Questions/Comments
Question: Collocate multiple images
Replies: 1

Re: Collocate multiple images

Collocate deals with two files. You might want to try Mosaic?

https://seadas.gsfc.nasa.gov/help-8.3.0/GptCookbook/gptCookbookMosaic.html