Model:LTRANS: Difference between revisions

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{{Model identity
|Model type=Modular
|Categories=Coastal, Marine
|Spatial dimensions=3D
|Spatialscale=Landscape-Scale, Watershed-Scale, Reach-Scale
|One-line model description=The Larval TRANSport Lagrangian model (LTRANS) is an off-line particle-tracking model that runs with the stored predictions of a 3D hydrodynamic model, specifically the Regional Ocean Modeling System (ROMS).
|Extended model description=The Larval TRANSport Lagrangian model (LTRANS) is an off-line particle-tracking model that runs with the stored predictions of a 3D hydrodynamic model, specifically the Regional Ocean Modeling System (ROMS). Although LTRANS was built to simulate oyster larvae, it can easily be adapted to simulate passive particles and other planktonic organisms. LTRANS is written in Fortran 90 and is designed to track the trajectories of particles in three dimensions. It includes a 4th order Runge-Kutta scheme for particle advection and a random displacement model for vertical turbulent particle motion. Reflective boundary conditions, larval behavior, and settlement routines are also included. LTRANS was built by Elizabeth North and Zachary Schlag of University of Maryland Center for Environmental Science Horn Point Laboratory. Funding was provided by the National Science Foundation Biological Oceanography Program, Maryland Department of Natural Resources, NOAA Chesapeake Bay Office, and NOAA-funded UMCP Advanced Study Institute for the Environment. Components of LTRANS have been in development since 2002 and are described in the following publications: North et al. 2005, North et al. 2006a, North et al. 2006b, and North et al. 2008.
}}
{{Start model keyword table}}
{{Model keywords
|Model keywords=larval transport model
}}
{{End a table}}
{{Modeler information
{{Modeler information
|First name=Elizabeth
|First name=Elizabeth
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|Additional email address=zschlag@umces.edu
|Additional email address=zschlag@umces.edu
}}
}}
{{Model identity
|Model type=Modular
|Categories=Coastal, Marine
|Spatial dimensions=3D
|Spatialscale=Landscape-Scale, Watershed-Scale, Reach-Scale
|One-line model description=The Larval TRANSport Lagrangian model (LTRANS) is an off-line particle-tracking model that runs with the stored predictions of a 3D hydrodynamic model, specifically the Regional Ocean Modeling System (ROMS).
|Extended model description=The Larval TRANSport Lagrangian model (LTRANS) is an off-line particle-tracking model that runs with the stored predictions of a 3D hydrodynamic model, specifically the Regional Ocean Modeling System (ROMS). Although LTRANS was built to simulate oyster larvae, it can easily be adapted to simulate passive particles and other planktonic organisms. LTRANS is written in Fortran 90 and is designed to track the trajectories of particles in three dimensions. It includes a 4th order Runge-Kutta scheme for particle advection and a random displacement model for vertical turbulent particle motion. Reflective boundary conditions, larval behavior, and settlement routines are also included. LTRANS was built by Elizabeth North and Zachary Schlag of University of Maryland Center for Environmental Science Horn Point Laboratory. Funding was provided by the National Science Foundation Biological Oceanography Program, Maryland Department of Natural Resources, NOAA Chesapeake Bay Office, and NOAA-funded UMCP Advanced Study Institute for the Environment. Components of LTRANS have been in development since 2002 and are described in the following publications: North et al. 2005, North et al. 2006a, North et al. 2006b, and North et al. 2008.
}}
{{Start model keyword table}}
{{Model keywords
|Model keywords=larval transport model
}}
{{End a table}}
{{Model technical information
{{Model technical information
|Supported platforms=Unix, Windows
|Supported platforms=Unix, Windows
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|CCA component=No but possible
|CCA component=No but possible
|IRF interface=No but possible
|IRF interface=No but possible
|CMT component=Not yet
|CMT component=In progress
}}
}}
{{Start coupled table}}
{{Start coupled table}}

Revision as of 09:04, 24 June 2011



LTRANS


Metadata

Also known as
Model type Modular
Model part of larger framework
Note on status model
Date note status model
Keywords:

larval transport model,

Name Elizabeth North
Type of contact Model developer
Institute / Organization University of Maryland
Postal address 1
Postal address 2
Town / City Cambridge
Postal code MD 21613
State Maryland
Country USA"USA" is not in the list (Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Australia, Austria, ...) of allowed values for the "Country" property.
Email address enorth@umces.edu
Phone
Fax


Name Zachary Schlag
Type of contact Model developer
Institute / Organization University of Maryland
Postal address 1
Postal address 2
Town / City Cambridge
Postal code MD 21613
State Maryland
Country USA"USA" is not in the list (Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Australia, Austria, ...) of allowed values for the "Additional country" property.
Email address zschlag@umces.edu
Phone
Fax


Supported platforms
Unix, Windows
Other platform
Programming language

Fortran90

Other program language
Code optimized Single Processor
Multiple processors implemented
Nr of distributed processors
Nr of shared processors
Start year development 2002
Does model development still take place? Yes
If above answer is no, provide end year model development
Code development status
When did you indicate the 'code development status'?
Model availability As code
Source code availability
(Or provide future intension) 		Through web repository
Source web address http://northweb.hpl.umces.edu/LTRANS.htm
Source csdms web address
Program license type Other
Program license type other MIT
Memory requirements --
Typical run time --


Describe input parameters Input files:
  1. the NetCDF files from the ROMS hydrodynamic model
  2. a comma delimited file that contains the particle locations,
  3. comma delimited files that contain habitat boundaries for the Settlement Module. The latter is only needed if the Settlement Module is turned on.
Input format Binary
Other input format NetCDF
Describe output parameters The output can ultimately be used to plot and view the particles and compare the

outcomes of different model runs. There are two types of comma-delimited output files: para and endfile. The para files are created periodically at set intervals throughout the running of the program and contain the particle locations at the current time. The endfile file is created only at the end of the program and contains information regarding each particles’ start location, end location, and ending status.

Output format ASCII
Other output format
Pre-processing software needed? Yes
Describe pre-processing software External Dependencies and Programs. LTRANS requires NetCDF libraries and uses the following programs to calculate random numbers (Mersenne Twister) and fit tension splines (TSPACK). Because LTRANS reads-in ROMS-generated NetCDF (.nc) files, it requires that the appropriate NetCDF libraries be installed on your computer (see files and links below). Also, please note that although the Mersenne Twister and TSPACK programs are included in the LTRANS in the Random_module.f90 and Tension_module.f90, respectively, they do not share the same license file as LTRANS. See also: http://northweb.hpl.umces.edu/LTRANS.htm
Post-processing software needed? No
Describe post-processing software
Visualization software needed? Yes
If above answer is yes Matlab
Other visualization software Surfer/Scripter; see also: http://northweb.hpl.umces.edu/LTRANS.htm


Describe processes represented by the model
Describe key physical parameters and equations
Describe length scale and resolution constraints
Describe time scale and resolution constraints
Describe any numerical limitations and issues


Describe available calibration data sets
Upload calibration data sets if available:
Describe available test data sets See: http://northweb.hpl.umces.edu/LTRANS.htm
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:LTRANS UsersGuide 5September08.pdf
Model website if any http://northweb.hpl.umces.edu/LTRANS.htm#Forum
Model forum / discussion board [[Model forum::See http://northweb.hpl.umces.edu/LTRANS.htm#Forum]]
Comments


This part will be filled out by CSDMS staff

OpenMI compliant No but possible
BMI compliant No but possible
WMT component In progress
PyMT component
Is this a data component
Can be coupled with:
Model info
Authors
Elizabeth North
Schlag
Source code
Model citations
Nr. of publications: 7
Total citations: 605
h-index: 4
m-quotient: 0.2
QR-code

Link to this page
Other models by author

Download statistics

<pbars ytitle=Downloads Title='Monthly Downloads ltrans' xlabels=true size=900x200 ymax=10 grid=true box=true cubic=true plots=open xformat=number connected=true angle=90 legend> ,Total downloads: 1 2008 - Jan,0 Feb,0 Mar,0 Apr,0 May,0 Jun,0 Jul,0 Aug,0 Sep,0 Oct,0 Nov,0 Dec,0 2009 - Jan,0 Feb,0 Mar,0 Apr,0 May,0 Jun,0 Jul,0 Aug,0 Sep,0 Oct,0 Nov,0 Dec,0 2010 - Jan,0 Feb,0 Mar,0 Apr,0 May,0 Jun,0 Jul,0 Aug,0 Sep,0 Oct,0 Nov,0 Dec,0 2011 - Jan,0 Feb,0 Mar,0 Apr,0 May,0 Jun,0 Jul,0 Aug,0 Sep,0 Oct,0 Nov,0 Dec,0 2012 - Jan,0 Feb,0 Mar,0 Apr,0 May,0 Jun,1 Jul,0 Aug,0 Sep,0 Oct,0 Nov,0 Dec,0 2013 - Jan,0 Feb,0 Mar,0 Apr,0 May,0 Jun,0 Jul,0 Aug,0 Sep,0 Oct,0 Nov,0 Dec,0 2014 - Jan,0 Feb,0 Mar,0 Apr,0 May,0 Jun,0 Jul,0 Aug,0 Sep,0 Oct,0 Nov,0 Dec,0 2015 - Jan,0 Feb,0 Mar,0 Apr,0 May,0 Jun,0 Jul,0 </pbars>

Introduction

History

Papers

Issues

Help

Input Files

Output Files

Download source code

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