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Hi James, Thank you so much for your input! It was really helpful and clarifying. It's definitely a bit confusing at first, but once you understand how things are structured, it becomes much easier to work with. Based on the information you provided, I've updated my code as follows: Rrs = ncread(ncf...

This is the script I am using: % Read necessary NetCDF variables Rrs = ncread(filepath, 'geophysical_data/Rrs'); % [band, x, y] nbands = size(Rrs, 1); wavelengths = wavelengths(1:nbands); I think I found the problem because wavelength dimension is 286 whereas the spectral dimension of Rrs cube is 17...

Hi,

Thank you both for your input.

I've attached the results I'm getting from extracting Rrs data for that pixel.

If Rrs values for the wavelengths between 588–613 nm are not generated in this file, how is it possible that I'm still able to extract data for them?

Cassandra

Hi,

Could you please explain how you did it?

I'm using a MATLAB script to extract data from the PACE files after applying some flags, and I ended up with the results I showed you. In fact, I've generated several similar graphs showing the same drop across different pixels.

Best regards,
Cassandra

Hi Minwei,

Yes, of course.

Granule name: PACE_OCI.20240701T112757.L2.OC_AOP.V3_0.nc

Pixel ___location: 67.7667236328125 (lat_pixel); 10.0829572677612 (lon_pixel)

Best,
Cassandra

Hello everyone, I was analysing PACE Rrs data and observed a sharp drop in values between ~553 nm and 555 nm (e.g., from 0.0008 at 553 nm to 0.0004 at 555 nm). Is this expected behaviour or could it be an artifact? I am observing this same pattern in several of my analyses... I’ve attached an exampl...

Hi, Thank you for the clarification! :) In the meantime, I’ve been extracting the information on the flags active within my region of interest to better assess data quality. I was wondering if there is any documentation or guidance on the thresholds or specific flag conditions that define whether a ...

Hello, Thank you for your response! I used the Aqua MODIS Level-2 Regional Ocean Color (OC) data, version 2022.0, which I retrieved from NASA's Earthdata Search. Below are the direct links to the specific NetCDF files I used: 1. https://obdaac-tea.earthdatacloud.nasa.gov/ob-cumulus-prod-public/AQUA_...

Hello everyone :) I am currently using MODIS Aqua L2 data to study the spatial and temporal variability of RRS in a specific region of interest (ROI). While analyzing data from the 17th of May 2024, I noticed a significant difference in RRS_443 values between two scenes taken less than three hours a...

Hello everyone :) I’m currently working with MODIS Level-2 Ocean Color data in a region close to the Norwegian Sea. Within my defined region of interest (ROI), I’ve noticed a large number of L2 granules available on certain days on Earthdata Search. However, many of these granules only cover a small...