Towards end-to-end : application to the North Sea and Baltic Sea

Coupled physical-biological models usually resolve only parts of the trophic food chain; hence, they run the risk of neglecting relevant ecosystem processes. Additionally, this imposes a closure term problem at the respective "ends" of the trophic levels considered. In this study, we aim t...

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Bibliographic Details
Published inGeoscientific model development Vol. 12; no. 5; pp. 1765 - 3529
Main Authors Daewel, Ute, Schrum, Corinna, Macdonald, Jed I
Format Journal Article
LanguageEnglish
Published Copernicus GmbH 06.05.2019
Subjects
Analysis
Biogeochemical cycles
Ecosystems
Marine ecosystems
Trophic cascades
North Sea
Baltic Sea
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Summary:Coupled physical-biological models usually resolve only parts of the trophic food chain; hence, they run the risk of neglecting relevant ecosystem processes. Additionally, this imposes a closure term problem at the respective "ends" of the trophic levels considered. In this study, we aim to understand how the implementation of higher trophic levels in a nutrient-phytoplankton-zooplankton-detritus (NPZD) model affects the simulated response of the ecosystem using a consistent NPZD-fish modelling approach (ECOSMO E2E) in the combined North Sea-Baltic Sea system. Utilising this approach, we addressed the above-mentioned closure term problem in lower trophic ecosystem modelling at a very low computational cost; thus, we provide an efficient method that requires very little data to obtain spatially and temporally dynamic zooplankton mortality.
ISSN:1991-959X
1991-9603