Table 3. Available methods for...

Table 3.

Available methods for floodplain modelling

Method reference	Distinguishing features	Some available software	Potential application
0D	No physical laws included in	ArcGIS, Delta mapper etc.	Broad-scale assessment of flood extents and flood
	simulations		depths
1D	Solution of the one-dimensional	Infoworks RS (ISIS),	Design scale modelling which can be of the order of
	St Venant equations	Mike 11, HEC-RAS	10 s to 100 s of km depending on catchment size
1D⁺	1D plus a flood storage cell	Infoworks RS (ISIS),	Design scale modelling which can be of the order of
	approach to the simulation of	Mike 11, HEC-RAS	10 s to 100 s of km depending on catchment size,
	floodplain flow		also has the potential for broad scale application if
			used with sparse cross-sectional data
2D⁻	2D minus the law of	LISFLOOD-FP	Broad scale modelling or urban inundation
	conservation of momentum		depending on cell dimensions
	for the floodplain flow
2D	Solution of the two-dimensional	TUFLOW, Mike 21,	Design-scale modelling of the order of 10 s km. May
	shallow wave equations	TELEMAC, DIVAST	have the potential for use in broad-scale
			modelling if applied with very course grids
2D⁺	2D plus a solution for vertical	TELEMAC 3D	Predominantly coastal modelling applications where
	velocities using continuity only		three-dimensional velocity profiles are
			important. Has also been applied to reach-scale
			river modelling problems in research projects
3D	Solution of the three-dimensional	CFX, FLUENT, PHEONIX	Local predictions of three-dimensional velocity
	Reynolds averaged		fields in main channels and floodplains
	Navier–Stokes equations

Method reference	Distinguishing features	Some available software	Potential application
0D	No physical laws included in	ArcGIS, Delta mapper etc.	Broad-scale assessment of flood extents and flood
	simulations		depths
1D	Solution of the one-dimensional	Infoworks RS (ISIS),	Design scale modelling which can be of the order of
	St Venant equations	Mike 11, HEC-RAS	10 s to 100 s of km depending on catchment size
1D⁺	1D plus a flood storage cell	Infoworks RS (ISIS),	Design scale modelling which can be of the order of
	approach to the simulation of	Mike 11, HEC-RAS	10 s to 100 s of km depending on catchment size,
	floodplain flow		also has the potential for broad scale application if
			used with sparse cross-sectional data
2D⁻	2D minus the law of	LISFLOOD-FP	Broad scale modelling or urban inundation
	conservation of momentum		depending on cell dimensions
	for the floodplain flow
2D	Solution of the two-dimensional	TUFLOW, Mike 21,	Design-scale modelling of the order of 10 s km. May
	shallow wave equations	TELEMAC, DIVAST	have the potential for use in broad-scale
			modelling if applied with very course grids
2D⁺	2D plus a solution for vertical	TELEMAC 3D	Predominantly coastal modelling applications where
	velocities using continuity only		three-dimensional velocity profiles are
			important. Has also been applied to reach-scale
			river modelling problems in research projects
3D	Solution of the three-dimensional	CFX, FLUENT, PHEONIX	Local predictions of three-dimensional velocity
	Reynolds averaged		fields in main channels and floodplains
	Navier–Stokes equations

[ViewLarge]