This toolbox forecasts the northern Gulf of Mexico hypoxic area based on nutrient load from the Mississippi-Atchafalaya River.
Updated 15 May 2020

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The toolbox uses nitrate May load (tons N) as input and calculates a time series forecast of the total hypoxic area as well as a spatially-resolved forecast of the location of hypoxia from June to October. For details on the methodology, please refer to Laurent & Fennel (2019): Time-evolving, spatially explicit forecasts of the northern Gulf of Mexico hypoxic zone, published in Environmental Science & Technology and available at

Cite As

Arnaud Laurent (2024). LaurentFennel2019_EST (, MATLAB Central File Exchange. Retrieved .

Laurent, Arnaud, and Katja Fennel. “Time-Evolving, Spatially Explicit Forecasts of the Northern Gulf of Mexico Hypoxic Zone.” Environmental Science & Technology, American Chemical Society (ACS), Nov. 2019, doi:10.1021/acs.est.9b05790.

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MATLAB Release Compatibility
Created with R2020a
Compatible with any release
Platform Compatibility
Windows macOS Linux
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Version Published Release Notes

Minor correction of H2D_contour_lat field


Add examples for plotting the forecast