Model:GENESIS

GENESIS

Also known as
Model type	Modular
Model part of larger framework

Spatial dimensions
Spatial extent
Model domain	Coastal
One-line model description	GENEralized model for SImulating Shoreline change
Extended model description	GENESIS calculates shoreline change produced by statial and temporal differences in longshore sand transport produced by breaking waves. The shoreline evolution portion of the numerical modeling system is based on one-line shoreline change theory, which assumes that the beach profile shape remains unchanged, allowing shoreline change to be described uniquely in terms of the translation of a single point (for example, Mean High Water shoreline) on the profile.

Keywords:	shoreline evolution, coastal sediment transport,

First name	Mark
Last name	Gravens
Type of contact	Model developer
Institute / Organization	US Army Corps of Engineers
Postal address 1	3909 Halls Ferry Road
Postal address 2
Town / City	Vicksburg
Postal code	39180
State	Mississippi
Country	United States
Email address	Mark.B.Gravens@erdc.usace.army.mil
Phone	601-634-3809
Fax	601-634-4314

Supported platforms	Windows
Other platform
Programming language	Fortran77
Other program language
Code optimized	Single Processor
Multiple processors implemented
Nr of distributed processors
Nr of shared processors
Start year development	1985
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
Source code availability (Or provide future intension)
Source web address
Source csdms web address
Program license type	Other
Program license type other	Commercial
Memory requirements	Typical
Typical run time	Minutes to hours

Describe input parameters	Shoreline position, time series of offshore wave height, period, and direction. Coastal structures and their physical attributes. Optionally, nearshore wave information from an external wave model.
Input format	ASCII, Binary
Other input format
Describe output parameters	Shoreline position, breaking wave information, estimated longshore sand transport rates.
Output format	ASCII, Binary
Other output format
Pre-processing software needed?	No
Describe pre-processing software
Post-processing software needed?	Yes
Describe post-processing software
Visualization software needed?	Yes
If above answer is yes
Other visualization software	any software able to visualize gridded data (RiverTools / 3DEM)

Describe processes represented by the model	GENESIS was designed to describe long-term trends of the beach plan shape in the course of its approach to an equilibrium form. The shoreline change model best calculates shoreline movement in transition from one equilibrium state to another. This change is usually caused by a notable pertubation, for example, jetty construction at a harbor or inlet, or placement of beach nourishment material.
Describe key physical parameters and equations	Breaking wave conditions are estimated from input wave information using linear wave theory. Longshore sand transport rates are estimated using a modified version of the CERC equation and the equation governing shoreline change is formulated by conservation of sand volume.
Describe length scale and resolution constraints	The longshore extent of the modeled reach can range from less than 1 mile to 10's of miles.
Describe time scale and resolution constraints	GENESIS is a long-term shoreline evolution model and is best applied to estimate shoreline change over time periods of 1 year to 10's of years.
Describe any numerical limitations and issues	Does not consider influence of cross-shore sand transport, not intended for short-term storm-induced shoreline change. No wave reflection from structures. No direct provision for changing tide level.

Describe available calibration data sets	No specific calibration data sets available. GENESIS has enjoyed many practical applications within the engineering and scientific community, results routinely published in proceedings of coastal conferences.
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:
Model website if any	http://chl.erdc.usace.army.mil/chl.aspx?p=s&a=Software;34
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Authors

Mark Gravens

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