Model:Shoreline

Shoreline

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

Spatial dimensions	1.5D
Spatial extent
Model domain	Coastal
One-line model description	Coastal evolution model
Extended model description	Shoreline is a "line model" for modeling the evolution of a coastline as the result of wind/wave-driven longshore sediment transport. It is based on conservation of mass and a semi-empirical sediment transport formula known as the CERC formula. This model was specifically adapted for modeling the evolution of the coastline near Barrow, Alaska.

Keywords:	coast line evolution, longshore sediment transport,

Name	Scott Peckham
Type of contact	Model developer
Institute / Organization	CSDMS, INSTAAR, University of Colorado
Postal address 1	1560 30th street
Postal address 2
Town / City	Boulder
Postal code	80309
State	Colorado
Country	United States
Email address	Scott.Peckham@colorado.edu
Phone	303-492-6752
Fax

Supported platforms	Unix, Linux, Mac OS, Windows
Other platform
Programming language	Matlab
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, As teaching tool
Source code availability (Or provide future intension)
Source web address
Source csdms web address
Program license type	Apache public license
Program license type other
Memory requirements	Standard
Typical run time	Minutes to hours

Describe input parameters	Initial coastline curve (array of xy pairs), depth of closure, a time series of wind speeds and angles, sediment grainsize, coastal bluff heights, a variety of configuration flags
Input format	ASCII
Other input format
Describe output parameters	The new coastline at the end of the simulation is plotted. Results are not currently saved to files.
Output format
Other output format	Graphical
Pre-processing software needed?	No
Describe pre-processing software
Post-processing software needed?	No
Describe post-processing software
Visualization software needed?	Yes
If above answer is yes	IDL
Other visualization software

Describe processes represented by the model	Processes: Wave properties derived from wind speed, wind angle and equations that describe a "fully-developed" sea state. Longshore sediment transport as modeled by the CERC or Kamphuis formulas. Conservation of mass for sediment. Simple methods to model cross-shore sediment transport.
Describe key physical parameters and equations	CERC formula for sediment transport rate (see Komar) Kamphuis formula for sediment transport rate. Conservation of sediment mass.
Describe length scale and resolution constraints	Spatial resolution of coastline is typically 1 to 50 meters.
Describe time scale and resolution constraints	The model is typically driven by hourly wind data (speed and angle) and models coastal change over a period of 10 to 100 years.
Describe any numerical limitations and issues	The model cannot yet fully handle complex coastline geometries, such as those that cannot be represented (after rotation) by a single-valued function.

Describe available calibration data sets	This model is not calibrated, but uses physically-based (measurable) parameters and measured data for validation. See next box.
Upload calibration data sets if available:
Describe available test data sets	Model was only used for modeling coastline change in the vicinity of Barrow, Alaska. Hourly wind data from a met station at the Barrow Airport was used to drive the model. High-resolution coastline data digitized from aerial photos by Manley et al. (2006) was used for initial and final coastlines. The latter was used for validation purposes. High-resolution DEMs were also used.
Upload test data sets if available:
Describe ideal data for testing	High-resolution coastal change data, for example, digitized from aerial photography or measured with GPS.

Do you have current or future plans for collaborating with other researchers?	Have collaborated somewhat with Brad Murray and Andrew Ashton.

Is there a manual available?	No
Upload manual if available:
Model website if any
Model forum / discussion board

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