Model:REF-DIF

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REF-DIF


Metadata

Also known as
Model type Single
Model part of larger framework
Incorporated models or components:
Spatial dimensions 1D
Spatial extent Continental, Regional-Scale
Model domain Coastal
One-line model description Phase-resolving parabolic refraction-diffraction model for ocean surface wave propagation.
Extended model description REF/DIF is a phase-resolving parabolic refraction-diffraction model for ocean surface wave propagation. It was originally developed by Jim Kirby and Tony Dalrymple starting in 1982, based on Kirby's dissertation work. This work led to the development of REF/DIF 1, a monochromatic wave model.
Keywords:

wave dynamics,


First name James
Last name Kirby
Type of contact Model developer
Institute / Organization University of Delaware, Department of Civil EngineeringCenter for Applied Coastal Research
Postal address 1
Postal address 2
Town / City Newark
Postal code 19716
State Delaware
Country United States
Email address kirby@udel.edu
Phone (302) 831-2438
Fax (302) 831-1228


Supported platforms Unix, Linux, Windows
Other platform There is a special version of REF/DIF (v2.5) for dos
Programming language Fortran77
Other program language
Code optimized Single Processor
Multiple processors implemented
Nr of distributed processors
Nr of shared processors
Start year development 1982
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://falk.ucsd.edu/modeling/
Source csdms web address
Program license type Other
Program license type other GNU General Public License, Version 2
Memory requirements --
Typical run time --


Describe input parameters The input includes file names for output, subgrid information, physical parameters and wave conditions. Water depth is obtained from the master program though a file name for water depth input is still kept in "indat.dat".
Input format Binary
Other input format
Describe output parameters Model output:
  • Complex amplitude,
  • Wave Heights and angles
  • Radiation stresses and forcing terms
  • Wave induced mass flux
  • Velocity moments for bottom stress calculation
Output format Binary
Other output format
Pre-processing software needed? Yes
Describe pre-processing software In cases where the standard required the use of a non-typical format (as in the use of the machine-independent binary HDF formats for large arrays), then the data transfer to and from LRSS is handled using a pre- and post-processing layer.
Post-processing software needed? Yes
Describe post-processing software In cases where the standard required the use of a non-typical format (as in the use of the machine-independent binary HDF formats for large arrays), then the data transfer to and from LRSS is handled using a pre- and post-processing layer.
Visualization software needed? No
If above answer is yes
Other visualization software


Describe processes represented by the model See manual version3
Describe key physical parameters and equations See manual version3
Describe length scale and resolution constraints Assumptions:

The REF/DIF 1 model, in parabolic form, has a number of assumptions inherent in it and it is necessary to discuss these directly. These assumptions are:

  1. Mild bottom slope.
  2. Weak nonlinearity.
  3. The wave direction is confined to a sector ±70 ◦ to the principal assumed wave direction, due to the use of the minimax wide angle parabolic approximation of Kirby (1986b).
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
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:REF-DIF users manual 1993.pdf, Media:Refdif1v30-2002.pdf
Model website if any http://chinacat.coastal.udel.edu/programs/refdif/refdif.html
Model forum / discussion board --
Comments Both codes are undergoing extensive revisions needed to incorporate them into the framework of the NearCoM Nearshore Community Model.


This part will be filled out by CSDMS staff

OpenMI compliant No but possible
BMI compliant No but possible
WMT component No but possible
PyMT component
Is this a data component
Can be coupled with:
Model info
James Kirby
Nr. of publications: 18
Total citations: 1327
h-index: 14
Qrcode REF-DIF.png
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Introduction

History

References




Nr. of publications: 18
Total citations: 1327
h-index: 14



Featured publication(s)YearModel describedType of ReferenceCitations
Dalrymple, Robert A.; Kirby, James T.; Hwang, Paul A.; 1984. Wave Diffraction Due to Areas of Energy Dissipation. Journal of Waterway, Port, Coastal, and Ocean Engineering, 110, 67–79. 10.1061/(ASCE)0733-950X(1984)110:1(67)
(View/edit entry)
1984REF-DIF
Model overview 301
Kirby, James T.; Dalrymple, Robert A.; 1983. A parabolic equation for the combined refraction–diffraction of Stokes waves by mildly varying topography. Journal of Fluid Mechanics, 136, 453. 10.1017/S0022112083002232
(View/edit entry)
1983REF-DIF
Model overview 157
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