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Experts debate models and data sufficiency for nitrogen-discharge accounting

State Water Resources Control Board expert panel on agricultural nitrogen · December 19, 2025
AI-Generated Content: All content on this page was generated by AI to highlight key points from the meeting. For complete details and context, we recommend watching the full video. so we can fix them.

Summary

Researchers at the panel discussed tradeoffs between the simpler, transparent AmenosR metric and more complex SWAT/SWAP models, and many speakers said current reporting lacks acreage and location detail needed for precise regional accounting.

Researchers and modelers at the State Water Resources Control Board expert-panel session debated the merits of different approaches to quantify nitrogen discharges and described persistent data gaps that limit certainty.

Jake Alessandro (University of Santa Clara) and others argued that the AmenosR ("a menos r") metric used on the Central Coast is scientifically valid, straightforward for participants to apply and can yield…

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