Earthdata Forum

Hello,

I am working with SWOT KaRIn Low Rate Sea Surface Height products, which are provided on an irregular grid aligned with the satellite's orbit. I need to convert this data into a regular grid format (e.g. Geotiff) for comparison with other rasterized datasets.

Could you please advise on the best methods or tools available to achieve this conversion while keeping the data's integrity and spatial accuracy? Any recommendations on would be highly appreciated.

Thank you for your assistance!

Best regards,
Noel

Hello,

I believe the PODAAC team can provide a thorough answer to your question. Please replace #OBDAAC with #PODAAC.

Thank you!

Hello Noel,
I do not have a ready example of code for you, but I would like to recommend the Python package pyresample (https://pyresample.readthedocs.io/en/latest/howtos/swath.html)

What is the grid resolution of the rasterized datasets you are looking to compare SWOT swaths with?

Best regards,
Celia

Hi Celia,

Thank you for the recommendation! I will explore 'pyresample' as it looks like a great starting point for working with the SWOT data.

As for the grid resolution, I am aiming to integrate SWOT data with Sentinel-1 and Sentinel-2 raster data (so the spatial resolution is ~10m). However, I believe coarser grids (around 100, 200 or 500m) could work.

I appreciate your assistance and will experiment with these resolutions to find the best fit.

Thanks again for your help!

Best regards,
Noel