PISCES Practical Session for Beginners
Olivier Aumont; Renaud Person; Christian Ethé; Coralie Perruche; Vincent Echevin
- Publisher
- Zenodo
- Language
- en
Abstract
Find here all the material (documents, code, input files, namelists, scripts,...) for the 3rd practical session on the PISCES marine biogeochemistry model for Beginners (September 22-24, 2025, Paris, France). Are included: An introduction to marine ecosystem modelling A presentation of the PISCES model The practical session document includes a brief description of the PISCES model, the 1D configuration of NEMO-PISCES, the BENGUELA LR configuration of CROCO and the installation of the NEMO and CROCO configurations A tar file with all the necessary files for the practical sessions. Under the CDOM directory are provided the files and routines as they should be modified in session 5 "Adding a new biogeochemical tracer in PISCES" for both ocean modeling platforms NEMO and CROCO (in case you get stuck) A tar file of the Notebooks used during the training and containing NEMO version: 5.0.1 release CROCO version : 2.1.1 release
Full text
September 2025 PISCES Basic information on the model
PISCES PISCES is a standard biogeochemical and plankton ecosystem model of varying complexity Mostly PFT framework but with some trait-based formalism (size, lability, …) Upper trophic levels (above mesozooplankton) are not explicitly modeled PISCES should be coupled to an OGCM: PISCES is using explicit temporal integration in the ocean Sediment module used implicit integration (Rosenbrock schemes) PISCES is coded in Fortran 90 Works only in 1D-V and 3D (no 0D or 2D version)
PISCES-std vs. PISCES-QUOTA ln_p4z = .true. PISCES-std (24/25 tracers)
PISCES-std vs. PISCES-QUOTA ln_p5z = .true. PISCES-QUOTA (39/40 tracers)
PISCES-QUOTA From Pahlow and Oschlies (2009) Several adaptations of that model when embedded in PISCES: •Maximum quotas in P depends on the physiological status of the cells •Iron physiology has been added •Chlorophyll regulation has been modified
Chlorophyll distribution AMJ NDJ Satellite PISCES-v2 PISCES-QUOTA
C/N/P ratios P/C N/C N/P
PISCES-simple vs. PISCES-STD ln_p2z = .true. PISCES-Simple (9 tracers)
PISCES-Sediment Can be used online/offline/standalone
