Articles | Volume 15, issue 17
https://doi.org/10.5194/gmd-15-6659-2022
https://doi.org/10.5194/gmd-15-6659-2022
Model experiment description paper
 | 
05 Sep 2022
Model experiment description paper |  | 05 Sep 2022

Inland lake temperature initialization via coupled cycling with atmospheric data assimilation

Stanley G. Benjamin, Tatiana G. Smirnova, Eric P. James, Eric J. Anderson, Ayumi Fujisaki-Manome, John G. W. Kelley, Greg E. Mann, Andrew D. Gronewold, Philip Chu, and Sean G. T. Kelley

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This preprint is open for discussion and under review for Geoscientific Model Development (GMD).
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Cited articles

Anderson, E. J., Fujisaki-Manome, A., Kessler, J., Lang, G. A., Chu, P. Y., Kelley, J. G. W., Chen, Y., and Wang, J.: Ice forecasting in the next-generation Great Lakes Operational Forecast System (GLOFS), J. Mar. Sci. Eng., 6, 123, https://doi.org/10.3390/jmse6040123, 2018. 
Balsamo, G.: Interactive lakes in the Integrated Forecast System, ECMWF Newslett., 137, 30–34, https://doi.org/10.21957/rffv1gir, 2013. 
Balsamo, G. and Mahfouf, J.-F.: Les schémas de surface continentale pour le suivi et la prévision du système Terre au CEPMMT, La Météorologie, 108, 77–81, 2020. 
Balsamo, G., Salgado, R., Dutra, E., Boussetta, S., Stockdale, T., and Potes, M.: On the contribution of lakes in predicting near-surface temperature in a global weather forecasting model, Tellus A, 64, 1, https://doi.org/10.3402/tellusa.v64i0.15829, 2012. 
Belovsky, G., Stephens, D., Perschon, C., Birdsey, P., Paul, D., Naftz, D., Baskin, R., Larson, C., Mellison, C., Luft, J., Mosley, R., Mahon, H., Van Leeuwen, J., and Allen, D. V.: The Great Salt Lake Ecosystem (Utah, USA): long term data and a structural equation approach, Ecosphere, 2, 1–40, https://doi.org/10.1890/ES10-00091.1, 2011. 
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Short summary
Application of 1-D lake models coupled within earth-system prediction models will improve accuracy but requires accurate initialization of lake temperatures. Here, we describe a lake initialization method by cycling within a weather prediction model to constrain lake temperature evolution. We compared these lake temperature values with other estimates and found much reduced errors (down to 1-2 K). The lake cycling initialization is now applied to two operational US NOAA weather models.
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