Search found 8 matches

by glastirmep
Thu Jun 13, 2024 12:16 pm America/New_York
Forum: Home
Question: MODIS-aqua L2 PIC R2022.0 validation
Replies: 0

MODIS-aqua L2 PIC R2022.0 validation

Hello, I have a question about the validation of reprocessed MODIS-aqua L2 PIC, described in https://seabass.gsfc.nasa.gov/search/?search_type=Perform%20Validation%20Search&val_sata=1&val_products=9 and https://oceancolor.gsfc.nasa.gov/data/reprocessing/r2022/aqua/. When compared with in sit...
by glastirmep
Wed Jun 12, 2024 12:39 pm America/New_York
Forum: Home
Question: MODIS L2 - aggregation of several daily PIC into a mean composite
Replies: 1

MODIS L2 - aggregation of several daily PIC into a mean composite

Hello, I have downloaded MODIS L2 geophysical variables data for the Southern Ocean to compared with in situ data collected from a cruise in 2016. The MODIS L2 files match the dates of in situ sampling, 10 consecutive days. The data is very patchy so I would like to create a mean composite with the ...
by glastirmep
Fri May 31, 2024 10:54 am America/New_York
Forum: Home
Question: Issue with SeaDAS pixel extraction
Replies: 6

Re: Issue with SeaDAS pixel extraction

Thanks a lot for your help.
I did update the version of SeaDAS and run the tool with no further problem.
Best,
N
by glastirmep
Tue May 21, 2024 2:27 pm America/New_York
Forum: Home
Question: Issue with SeaDAS pixel extraction
Replies: 6

Re: Issue with SeaDAS pixel extraction

Hello, I am having the same problem running pixel extraction with SeaDAS 8.4.1 in a WINDOWS 10 laptop. I want to extract PIC values from MODIS-Aqua L2 images installed in a network drive. As @davidantoine, I am getting the message "The pixel extraction tool has run successfully and written the ...
by glastirmep
Mon Jul 24, 2023 4:21 pm America/New_York
Forum: Home
Question: Relationship between various temporal PIC products
Replies: 2

Re: Relationship between various temporal PIC products

Thanks a lot, that's very helpful.
The link works fine.
by glastirmep
Wed Jun 07, 2023 9:54 am America/New_York
Forum: Home
Question: Relationship between various temporal PIC products
Replies: 2

Relationship between various temporal PIC products

Hello, I downloaded daily PIC data for two areas south of Chile and south of New Zealand respectively and I noticed that the daily grids had a lot of 'gaps'. To get more data I downloaded 8-daily and monthly PIC data for the same areas. Whereas the 8-daily grids had also low coverage of the location...
by glastirmep
Thu May 25, 2023 12:02 pm America/New_York
Forum: Home
Question: PIC netCDF files - scale and offset values for pic variable
Replies: 2

Re: PIC netCDF files - scale and offset values for pic variable

Hello,
Yes, it does help. Thanks a lot for taking the time to reply to my post.
Nuria
by glastirmep
Thu May 18, 2023 6:16 am America/New_York
Forum: Home
Question: PIC netCDF files - scale and offset values for pic variable
Replies: 2

PIC netCDF files - scale and offset values for pic variable

Hello, I have extracted daily PIC data for a couple of areas in the South Pacific through the Ocean Colour website. According to the variable attributes, the PIC scale_factor is 2.0e-6f and the add_offset 0.065f (I am uploading a screenshot from Panoply that shows the variable attributes). I have ex...