Composite layer

Use this Forum to find information on, or ask a question about, NASA Earth Science data.
Post Reply
fethiye
Posts: 2
Joined: Wed May 14, 2025 8:53 am America/New_York
Answers: 0

Composite layer

by fethiye » Wed May 14, 2025 9:28 am America/New_York

How can I use SeaDAS to combine 10 years of mapped Chlorophyll-a (Chl-a) data from MODIS Aqua (8-day temporal resolution, 4km spatial resolution) into a single composite layer suitable for spatio-temporal analysis?
Last edited by fethiye on Sun Jun 01, 2025 12:52 am America/New_York, edited 1 time in total.

Filters:

OB SeaDAS - aynur
Subject Matter Expert
Subject Matter Expert
Posts: 64
Joined: Tue Dec 20, 2011 12:28 pm America/New_York
Answers: 0
Been thanked: 1 time

Re: Composite layer

by OB SeaDAS - aynur » Mon May 19, 2025 2:59 pm America/New_York

Hi,

Please put all you 8-day Chl-a files into one text file:
ls *.L3m_CHL_chlor_a.nc > chl_list.txt

Then use l3bin tool to combine the files.
Then generate map with l3mapgen.
You can watch the following video if you need help with using these tools.
https://www.youtube.com/watch?v=5dIwCK7IDXE&t=132s
https://www.youtube.com/watch?v=5dIwCK7IDXE&t=233s

Thanks,
Aynur

fethiye
Posts: 2
Joined: Wed May 14, 2025 8:53 am America/New_York
Answers: 0

Re: Composite layer

by fethiye » Mon May 19, 2025 3:20 pm America/New_York

Thanks for reply

Post Reply