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GOTM, a General Ocean Turbulence Model
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GOTM, a General Ocean Turbulence Model

Theory, implementation and test cases

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This report is the scientific documentation of GOTM (General Ocean Turbulence model), which is a public domain software package, numerically simulating the vertical dynamics of a water column. This package contains besides the FORTRAN 77 source code as well a number of test scenarios, reaching from an idealistic ocean mixing experiment over estuarine and shelf sea studies to ocean mixed-layer simulations. Basic prognostic variables are the momentum components, temperature, salinity and suspended matter. The core part of GOTM consists of a choice of different turbulence parameterizations, ranging from simple algebraic forms to complex two-equation models. Among the latter are the well-known k-ε and the Mellor- Yamada turbulence closures. All information which specifies a certain application, such as external forcing file names or physical or numerical parameters, are read in from a namelist. That allows for switching from one scenario to another without re-compilation. Due to its modular structure, GOTM is easily extendable. It is intended to build up a user group, the members of which provide additional physical or numerical features or set up new scenarios. The first two chapters of this report describe the physical equations and their numerical treatment, respectively. The implementation strategy is discussed in an extra chapter. One chapter is the user's guide, which explains step by step how to install, compile, run and modify GOTM. All test scenarios are scientifically documented in a further chapter. The report is completed with an extensive bibliography and an example of the namelist file.
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Ara anqas
ISSN 1018-5593
Numru tal-Katalogu EU-NA-18745-EN-C
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ISSN 1018-5593 ISBN DOI Numru tal-Katalogu EU-NA-18745-EN-C
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