SWOT L2 Discharge Estimates

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jthuber25
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SWOT L2 Discharge Estimates

by jthuber25 » Fri Feb 27, 2026 3:52 pm America/New_York

I am trying to find the SWOT Level 2 Discharge estimates, and it appears they are not yet available. I am aiming to ensure that I am not overlooking anything, since this is a new dataset with multiple access tools. Here's a summary of the avenues I've checked, if level 2 discharge is available, please point me to the correct repository or webpage.

1. Hydrocron API with River SP Version D data - this currently lists -999999999999 for all discharge related variables, this appears to be noted as a future improvement on the hydrocron github already
2. Downloading individual granules from NASA Earth Data Search - this yields shapefiles that also list all discharge variables at -999999999999

Are Level 2 discharge estimates available anywhere, or are they yet to be released? If so, are the level 4 Sword of Science discharge estimates the only available discharge estimates derived from the SWOT mission? Thank you for your assistance.

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john6444
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Re: SWOT L2 Discharge Estimates

by john6444 » Sun Mar 29, 2026 3:46 am America/New_York

Just also interested in SWOT Level 2 discharge estimation and meeting the same issue.

Cheers,
Jw

mgangl
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Re: SWOT L2 Discharge Estimates

by mgangl » Thu Apr 16, 2026 1:36 pm America/New_York

The SWOT project is not currently producing a L2 discharge estimate. Currently the L4 SOS Discharge product (https://www.earthdata.nasa.gov/data/catalog/pocloud-swot-l4-hr-dawg-sos-discharge-v3-3) is the only discharge product we are distributing. The SWOT L2 products will continue to have fill values.

john6444
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Re: SWOT L2 Discharge Estimates

by john6444 » Thu Apr 16, 2026 10:10 pm America/New_York

Got it and thanks for your reply!

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