Impact model: Atlantis (SE Australia)

ISIMIP2a

Basic information

Model Version: Atlantis 2

Model output license: CC BY 4.0

Simulation Round Specific Description: SE Australian region - Southern and Eastern Scalefish and Shark Fishery area. Undertaken with and without dynamic fishing changes; used most plausible biological parameterisations (with no evolution under the different RCP forcing)

Person Responsible For Model Simulations In This Simulation Round: Beth Fulton

Output Data

Experiments: reana, scen
Climate Drivers: GFDL-ESM2M (ocean), GFDL-reanalysis (ocean), IPSL-CM5A-LR (ocean)
Date: 2017-12-20

Resolution

Spatial Aggregation: polygons

Spatial Resolution: Polygon dependent (different sizes matched to geographic and ecological features)

Additional Spatial Aggregation & Resolution Information: Horizontal polygons with up to 7 vertical layers (to cover 3D space)

Temporal Resolution Of Input Data: Climate Variables: daily

Temporal Resolution Of Input Data: Co2: annual

Additional Temporal Resolution Information: Hydrodynamic flows, salinity and temperature were entered daily but had to be synthesised/interpolated in some cases from values on longer time steps. In most instances find scale forcing was updated via anomalies taken from global models.

Input data sets used

Observed Atmospheric Climate Data Sets Used: Historical observed climate data

Simulated Ocean Climate Data Sets Used: GFDL-ESM2M (ocean), GFDL-reanalysis (ocean), IPSL-CM5A-LR (ocean)

Emissions Data Sets Used: CO2 concentration

Other Human Influences Data Sets Used: Fishing intensity

Additional Information About Input Variables: Temperature and salinity anomalies were calculated from MIP products to scale dine scale drivers. The pCO2 time series was used to drive the pH/acidification aspects of the model

Additional Input Data Sets: Other inputs were as standard for the SE Australian Atlantis runs - including fish market prices, fisheries management zoning, nutrient inputs form atmosphere/sewage/river inputs

Spin-up

Was A Spin-Up Performed?: Yes

Spin-Up Design: Model was run for 25 years wth constant forcing before projections or historical forcing was introduced. This burn-in period was stripped form model output

Management & Adaptation Measures

Management: Current fisheries management measures were assumed to continue unchanged

Extreme Events & Disturbances

Key Challenges: Unless called for as part of the scenario no extreme events were included.

Information specific to marine ecosystems & fisheries

Defining Features: 32 fleets were modelled with different gear types.

Spatial Scale: Regional - SE Australia

Spatial Resolution: Variable polygons

Temporal Resolution: 12 hourly

Taxonomic Scope: Mix of species and functional groups

Vertical Resolution: Variable (more layers near the surface)

Spatial Dispersal Included: Via hydrodynamic exchanges and directed movement of some species

Is Fishbase Used For Mass-Length Conversion?: Where no other information was available