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Biogeochemical simulation naming protocol

All simulations from 2017 onwards have the following naming structure:

GBRg_Hhhh_Bbbb_Cccc_Dddd

where:

GBRg     – Model grid with g = approximate grid resolution in kilometres.

Hhhh     – Hydrodynamic model, hhh = model version.

Bbbb     – Biogeochemical model, bbb = model version.

Cccc       – Catchment model, ccc = load specification.

  • fur – Furnas relationships for wet and dry tropics rivers;
  • pre – SOURCE Catchments – Pre-Industrial catchment cover;
  • bas – SOURCE Catchments – Baseline (2012/13) catchment;
  • hyd – best available forcing (2011 – Jun 30, 2014 P2R SOURCE Catchments; Jul 1, 2014 – Oct 30, 2016 – Empirical SOURCE Catchments; Oct 30, 2016 onwards Furnas relationship].

Dddd     – Model deployment.

  • nrt – Near Real Time (-2 days, waiting for hydrodynamic forcing);
  • fct – Forecast (+2 days);
  • hnd – Hindcast (set dates);
  • crt – catchment real time (-6 months, waiting for SOURCE Catchments);
  • ran – Reanalysis (hindcast assimilating ocean colour).

Existing configurations:

H1p85 – Hydrodynamic run for SIEF report: contained salinity errors in 2015 – grid contains only 22 rivers.

H2p0 – No known forcing problems. 70 rivers included as boundaries, but only 22 have flows and loads. Fixed a rainfall forcing issue.

B1p0 – This is the original biogeochemical model. The simulations for the SIEF report in Jan 2016, and which have been referred to previously as v926, used this version.

B1p9 – More accurate optical calculations; Normanby – particulate and dissolved loads corrected; Sediment tracer “Dust” added; Oxygen mass conservation part of diagnostics.

B2p0 – Added deep seagrass species, seagrass mortality enhanced by bottom shear stress and nutrient uptake by seagrass leaves; spectral light forcing benthic microalgae; carbon chemistry calculations in sediment and using time-varying atmospheric pCO2; distinguish carbonate and non-carbonate fine sediments; in-line calculation of simulated satellite products; VIIRS satellite comparison; implement ecological processes on boundary cells; dynamic porosity in ecological process calculations; calculation of turbidity using optical model.

B2p1 – Added new coral bleaching processes.

Significant simulations:

GBR4_H1p85_B1p0_Cbas_Dhnd – The simulation run for the 2016 SIEF report that was the first publicly-available long run of the full coupled hydrodynamic – biogeochemical model (formally known as gbr926).

GBR4_H2p0_B2p0_Chyd_Dhnd – Second publicly-release (mid 2017) long run being used for GBRF resilience and NESP TWQ Hub projects.

GBR4_H2p0_B1p9_Chyd_Dran – First application of BGC data assimilation that is being used for GBR report card 7.