A biogeochemical model intercomparison for the eastern Bering Sea shelf

A biogeochemical model intercomparison for the eastern Bering Sea shelf | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 26 March 2025 V1 Latest version Share on A biogeochemical model intercomparison for the eastern Bering Sea shelf Authors : Kelly A. Kearney 0000-0002-6152-5236 [email protected] , Wei Cheng , and Albert J. Hermann 0000-0002-0253-7464 Authors Info & Affiliations https://doi.org/10.22541/au.174301705.52428579/v1 Published Journal of Geophysical Research: Oceans Version of record Peer review timeline 208 views 170 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Uncertainty related to biogeochemical model structure, i.e. the equations, parameters, and variables used to simulate nutrient cycling and lower trophic level dynamics, can contribute significantly to overall uncertainty of regional model predictions of living marine resources metrics like primary production and trophic transfer efficiency. This may be particularly true in shallow coastal regions, where there is growing interest in using these types of regional models to inform ecosystem management. Here, we use a biogeochemical model intercomparison to quantify the uncertainty of key ecosystem metrics in the eastern Bering Sea shelf region and isolate poorly constrained biogeochemical processes that may lead to this uncertainty. We run three biogeochemical models with varying complexity coupled to the same regional ocean model and run a series of 30-year hindcast simulations spanning 1990-2020. We find that the models differ widely in their spatial and temporal patterns of simulated primary production, and that these differences propagate to most of the higher trophic level metrics examined. We highlight key structural elements that lead to these differences, including a) the representation of benthic processes and their role in retaining nitrogen on the shelf, b) the role of grazing control on spring bloom timing, and c) the role of micro- and mesozooplankton groups in supporting regenerated production through the summer months. Overall, we conclude that even well-validated biogeochemical models may have high uncertainty, particularly when pushed beyond the original contexts under which they were developed. Supplementary Material File (1027521_0_merged_1741885866.pdf) Download 4.51 MB File (kearney_bgcmip_v1.0.pdf) Download 4.51 MB File (kearney_bgcmip_v1.0_supplement.pdf) Download 5.30 MB Information & Authors Information Version history V1 Version 1 26 March 2025 Peer review timeline Published Journal of Geophysical Research: Oceans Version of Record 13 Dec 2025 Published Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords bering sea biogeochemical model model intercomparison primary production Authors Affiliations Kelly A. Kearney 0000-0002-6152-5236 [email protected] NOAA Alaska Fisheries Science Center View all articles by this author Wei Cheng NOAA Pacific Marine Environmental Laboratory View all articles by this author Albert J. Hermann 0000-0002-0253-7464 Pacific Marine Environmental Laboratory (NOAA) View all articles by this author Funding Information Climate Program Office NA20OAR4310446 Metrics & Citations Metrics Article Usage 208 views 170 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Kelly A. Kearney, Wei Cheng, Albert J. Hermann. A biogeochemical model intercomparison for the eastern Bering Sea shelf. Authorea . 26 March 2025. DOI: https://doi.org/10.22541/au.174301705.52428579/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. 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