Sensitivity of Marine Heatwave Metrics to Ocean Model Resolution

Tracking the long-distance dispersal of marine organisms: sensitivity to ocean model resolution.

Ocean circulation models are widely used to simulate organism transport in the open sea, where challenges of directly tracking organisms across vast spatial and temporal scales are daunting. Many recent studies tout the use of 'high-resolution' models, which are forced with atmospheric data on the scale of several hours and integrated with a time step of several minutes or seconds. However, in ...

Key features of the IPSL ocean atmosphere model and its sensitivity to atmospheric resolution

This paper presents the major characteristics of the Institut Pierre Simon Laplace (IPSL) coupled ocean– atmosphere general circulation model. The model components and the coupling methodology are described, as well as the main characteristics of the climatology and interannual variability. The model results of the standard version used for IPCC climate projections, and for intercomparison proj...

Mass coral bleaching due to unprecedented marine heatwave in Papahānaumokuākea Marine National Monument (Northwestern Hawaiian Islands)

2014 marked the sixth and most widespread mass bleaching event reported in the Northwestern Hawaiian Islands, home to the Papahānaumokuākea Marine National Monument (PMNM), the world's second largest marine reserve. This event was associated with an unusual basin-scale warming in the North Pacific Ocean, with an unprecedented peak intensity of around 20°C-weeks of cumulative heat stress at Lisi...

Sensitivity of an Ocean Model to “Details” of Stochastic Forcing

We review the sensitivity of a double-gyre ocean model to various stochastic versions of parameterization representing unresolved, rapidly-varying atmospheric wind forcing. Although each version can be argued to be a valid representation of a single physical process and, therefore, may be expected to excite the model in ways similar to the other versions, the model response is surprisingly vari...

Assessing ocean-model sensitivity to wind forcing uncertainties