Finite difference meshFinite element mesh Finite difference meshFinite element mesh

Cell2D

Cell3D

Cell2D

Cell3D

Hydrogeology

Groundwater Modeling GeoSurfaces

AquiferOutcrop

Downdip

AquiferOutcrop

Downdip

Geologic formations Geologic structures (fault, fold, scarp )

Geologic contacts

Beaufort confining layer

Beaufort aquifer

GeoRasters: properties and top and bottom surfaces of geologic formations

Raster Series: rasters indexed with time values

Well: describes the well location (x, y) and attributes of

the well

BoreLine: describes the hydrostratigraphy along the well

GeoSection: vertical sections of the subsurface, used to represent fence diagrams and cross

sections

GeoVolume: represents solid elements within the subsurface

Aquifer: boundaries and zones of an aquifer in map view

GeoPoints, GeoLines, and GeoAreas: geologic features

Water area and line: represent surface water features

HGU ID

HGU Code

Formation

1 1 Sand

2 8 Red Clay

3 23 Bouldery till

Arc Hydro Groundwater Data ModelDraft June 2004

Hydrogeologic unit table: links spatial representations of the hydrogeologic unit

Cell2D: representation of 2D meshes

Cell3D: 3D representation of model cells

Boundary: Two dimensional boundary of the model

Nodes: nodes of the mesh

GeoTIN: used to describe surfaces

Potentiometric surface_July

Potentiometric surface_June

Potentiometric surface_May

Name

July 2003

June 2003

May 2003

Date/Time

3

2

1

Raster ID

Potentiometric surface_July

Potentiometric surface_June

Potentiometric surface_May

Name

July 2003

June 2003

May 2003

Date/Time

3

2

1

Raster ID

Potentiometric surface

Potentiometric surface_July

Potentiometric surface_June

Potentiometric surface_May

Name

July 2003

June 2003

May 2003

Date/Time

3

2

1

Raster ID

Potentiometric surface_July

Potentiometric surface_June

Potentiometric surface_May

Name

July 2003

June 2003

May 2003

Date/Time

3

2

1

Raster ID

(Polygon)

(Polyline)

(Polygon)

(PolylineZ)

(PointZ)

(PolygonZ)

(Multipatch)

(Polygon)

(PointZ)

(PolylineZ)

(Polygon)

(Polygon)

(Multipatch)

(PointZ)

(Raster Catalog)

(Raster Catalog)

(TIN)

CRWRCRWRCRWR

Transmissivity Hydraulic conductivity Formation Top Formation base