ARC HYDRO GROUNDWATER Data Model for Managing Hydrogeologic Data

Gil Strassberg – Aquaveo

Norm Jones – Aquaveo/BYU David Maidment – UT Austin

Background

What is Arc Hydro?

Data models (geodatabase designs): Best GIS practices in a specific field. Terminology, common language. Standard.

Tools – surface water, groundwater. Community – user community advances best practices.

Arc Hydro Data Model

Arc Hydro Framework

Surface water components

Network

Groundwater components

Boreholes Drainage

Hydrography

Channel

Hydrostratigraphy

Geology

Simulation

Temporal

General model for representing water resources, including surface water components and groundwater components centered on a common framework

Arc Hydro GW Data Model

Framework

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Well1

Aquifer

MonitoringPoint

WaterLine Watershed

TimeSeries

Waterbody

AquiferHydroIDHydroCodeNameHGUIDFType

WellHydroIDHydroCodeLandElevWellDepthAquiferIDAqCodeHGUIDFType

HydroIDHydroCodeNameJunctionIDFType

MonitoringPoint

TimeSeriesFeatureIDVarIDTsTimeUTCOffsetTsValue

VariableDefinition

VarIDVarNameVarDescVarUnits

SeriesCatalogFeatureIDFeatClassVarIDTsTableStartTimeEndTimeValueCount

WatershedHydroIDHydroCodeNameDrainIDJunctionIDNextDownIDAreaSqKmFType

WaterBodyHydroIDHydroCodeNameJunctionIDNextDownIDAreaSqKmFType

WaterLineHydroIDHydroCodeNameFlowDirNextDownIDLengthKmFType

WaterPoint

HydroIDHydroCodeNameJunctionIDFType

1 HydroIDHydroCodeNameJunctionIDFType

MonitoringPoint

WatershedHydroIDHydroCodeNameDrainIDJunctionIDNextDownIDAreaSqKmFType

WaterBodyHydroIDHydroCodeNameJunctionIDNextDownIDAreaSqKmFType

WaterLineHydroIDHydroCodeNameFlowDirNextDownIDLengthKmFType

WaterPoint

HydroIDHydroCodeNameJunctionIDFType

Surface water

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TimeSeriesFeatureIDVarIDTsTimeUTCOffff sf etTsValue

VariableDefinition

VarIDVarNameVarDescVarUnits

SeriesCatalogFeatureIDFeatClassVarIDTsTableStartTimeEndTimeValueCount

Temporal

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AquiferHydroIDHydroCodeNameHGUIDFType

WellHydroIDHydroCodeLandElevWellDepthAquiferIDAqCodeHGUIDFType

Groundwater

An aquifer is defined by one or a set of polygon features. Aquifer features can be grouped by HGUID.

Aquifer features

Wells are defined as a 2D point in the Well feature class. In the Arc Hydro model we only predefine a set of basic attributes.

Well Features

Point datasetWell

HydroIDHydroCodeLandElevWellDepthAquiferIDAqCodeHGUIDFType

Wells in the Edwards Aquifer

Aquifers and Wells

Well HydroID = 53

TimeSeries - Tabular structure for storing time series values indexed by time, location, and variable. FeatureID of the time series = HydroID of the spatial feature (e.g., Well).

Time Series Views

Well HydroID = 2791

Create view of a variable over a space-time domain.

Time Series Views

January 1991

Raster Series

Raster datasets indexed by time

Each raster represents a continuous surface describing a variable for a given time over an area of interest

ed by time

ariable for a givennterest

1991

1992

1993

Arc Hydro GW Data Model

3D data is referenced along wells. From depth (top) – To depth (bottom).

Wells and 3D data

From

To

146

128

-60

41

-81

750

-140

-217

-372

-433

Georgetown Fm. (GTWN)

Cyclic + Marine member (CYMRN)

Upper confining unit

Leached + collapsed member (LCCLP)

Regional dense member (RGDNS)

Grainstone member (GRNSTN)

Kirschberg evaporite member (KSCH)

Dolomitic member (DOLO)

Lower confining unit, upper Glen Rose (UGLRS)

Combining the well geometry (x, y) and the vertical data stored in the BoreholeLog table we can describe a set of 3D geometries (x, y, z)

BoreholeLog table

From the tabular data we create 3D features that can be viewed in ArcScene.

3D features (BorePoints and BoreLines)

3D Borelines

Arc Hydro GW Data Model

GeoSections

2D Cross Sections (XS2D)

Outcrop

Salt water interface

Borehole data

Panel

Panel divider

Edit cross sections in ArcMap

2D Cross Section Editing

Transform to 3D GeoSection

GeoRasters

GeoVolumes

Simulation Feature Data Set

Simulation Feature Data Set

Boundary

HydroID HydroCode Description OriginX OriginY Angle

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Node 2 D

HydroID HydroCode IJ

Cell 2 D

HydroID HydroCode IJ

Cell 3 D

HydroID HydroCode IJK

Node 3 D

HydroID HydroCode IJK

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CellIndex I J K IJ IJK

Tools

Groundwater Analyst

Subsurface Analyst

MODFLOW Analyst

Arc Hydro (surface water): Arc Hydro GIS for Water Resources (Maidment, 2002). http://support.esri.com/datamodels

Arc Hydro Groundwater: Arc Hydro Groundwater GIS for Hydrogeology (Strassberg et al., 2011) http://www.aquaveo.com/archydro-groundwater http://www.archydrogw.com

ArcGIS Resource Center:

http://resources.arcgis.com/archydro

Resources