The Meridionally Averaged Model of Eastern Boundary Upwelling Systems (MAMEBUSv1.0)

Abstract. Eastern boundary upwelling systems (EBUSs) are physically and biologically active regions of the ocean with substantial impacts on biogeochemistry, ecology, global fish catch. Previous studies have used models varying complexity to study EBUS dynamics, ranging from minimal two-dimensional (2-D) comprehensive regional models. An advantage 2-D is that they more computationally efficient easier interpret than models, but their key drawback lack explicit representations important three-dimensional processes control biology in systems. These include eddy quenching nutrients meridional transport heat. The authors present Meridionally Averaged Model Boundary Upwelling Systems (MAMEBUS) aims at combining benefits 3-D approaches modeling EBUSs by parameterizing a framework. MAMEBUS couples primitive equations for physical state nutrient–phytoplankton–zooplankton–detritus model ecosystem, solved terrain-following coordinates. This article defines describe tracer, momentum, biological evolution, along parameterizations advection, isopycnal mixing, layer mixing. It describes details numerical schemes implementation code, provides reference solution validated against observations California Current. goal facilitate future efficiently explore wide space biogeochemical parameters zonal variations EBUSs.