Model:BOM

BOM

Also known as
Model type	Single
Model part of larger framework
Note on status model
Date note status model

Incorporated models or components:

Spatial dimensions	1D, 2D, 3D
Spatial extent	Continental, Regional-Scale, Landscape-Scale, Watershed-Scale, Reach-Scale, Patch-Scale, Grain-Scale
Model domain	Coastal, Marine
One-line model description	Bergen Ocean Model
Extended model description	A three-dimensional hydrodynamic multi-purpose model for coastal and shelf seas, which can be coupled to biological, re-suspension and contaminant models. Has been used in a variety of configurations from resolving grain-scale up to seasonal scale processes. Can be run with optional MPI parallelization or run-time visualization via PGPLOT. Programmed with the goal that the same executable can be used for all cases, by using allocatable arrays and cases defined via a single configuration file pointing to input data in files typically in the same directory.

Keywords:	hydrodynamics,

Name	Helge Avlesen
Type of contact	Model developer
Institute / Organization	NORCE Norwegian Research Centre
Postal address 1
Postal address 2
Town / City
Postal code
State
Country	Norway
Email address	heav@norceresearch.no
Phone
Fax

Supported platforms	Unix, Linux, Mac OS, Windows
Other platform
Programming language
Other program language	Fortran95
Code optimized	Single Processor, Multiple Processors
Multiple processors implemented	Distributed memory
Nr of distributed processors
Nr of shared processors
Start year development	1995
Does model development still take place?	Yes
If above answer is no, provide end year model development
Code development status	Only maintenance
When did you indicate the 'code development status'?	2020
Model availability	As code
Source code availability (Or provide future intension)	Through web repository
Source web address	https://org.uib.no/bom/
Source csdms web address
Program license type	Other
Program license type other
Memory requirements
Typical run time

Describe input parameters	Wind, rivers, submerged inlets, lateral open boundaries, surface heat flux, a limited number of numerical schemes can be chosen, ...
Input format	ASCII, Binary
Other input format
Describe output parameters	Currents, salinity, temperature, ... all model variables.
Output format	ASCII, Binary
Other output format
Pre-processing software needed?	Yes
Describe pre-processing software	idealized experiments can be run with simple text files as input, but for realistic cases input data needs to be created with e.g. python, matlab or fortran scripts.
Post-processing software needed?	Yes
Describe post-processing software	model supports a variety of output to ascii or binary files that relatively easy can be read into e.g. matlab or python plotting packages. Gnuplot as also been used.
Visualization software needed?	Yes
If above answer is yes	Matlab
Other visualization software	Python matplotlib, Gnuplot, etc.

Describe processes represented by the model	Free surface flow of water. Conservation of heat, salinity, mass, turbulent kinetic energy, dissipation.
Describe key physical parameters and equations	Current speed, temperature, salinity, sea surface elevation, wind speed, river fluxes. Based on Navier Stokes equations, Boussinesq approximation, terrain following coordinates (sigma)
Describe length scale and resolution constraints	Uniform horisontal resolution, i.e. works best for resolutions < 20km.
Describe time scale and resolution constraints	No assimilation means it works best for simulations shorter than ~6months unless boundary conditions are carefully tuned to avoid model drift.
Describe any numerical limitations and issues	Free surface formulation does not support rapid changes in water elevation like hydraulic jumps in rivers.

Describe available calibration data sets
Upload calibration data sets if available:
Describe available test data sets
Upload test data sets if available:
Describe ideal data for testing

Do you have current or future plans for collaborating with other researchers?

Is there a manual available?	Yes
Upload manual if available:	Media:USERS GUIDE for a modesplit sigma-coordinate numerical ocean model.pdf
Model website if any	org.uib.no/bom
Model forum / discussion board

Comments

This part will be filled out by CSDMS staff

Can be coupled with:

Model info

Authors

Jarle Berntsen

Avlesen

Source code

Model citations

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Other models by author

Featured publication(s)	Year	Model described	Type of Reference	Citations
Berntsen, Jarle; Furnes, Gunnar; 2005. Internal pressure errors in sigma-coordinate ocean models—sensitivity of the growth of the flow to the time stepping method and possible non-hydrostatic effects. Continental Shelf Research, 25, 829–848. 10.1016/j.csr.2004.09.025 (View/edit entry)	2005	BOM	Model overview	44
See more publications of BOM