The assign button ( ): allows you to specify a well data object with observations in the Data Explorer.The Create/Add Well Observations dialog contains two controls: The Create/Add Well Observations dialog will appear:

Below the toolbox, select Well Observation and select Assign > using data object. Once you have imported or created a Well observation data object with heads or concentrations, navigate to the Define Observations step in the numerical model workflow. The 'raw' observation well data can be viewed/edited in the Well Data section.Īll other boundary conditions can be fully defined at the Define Observations step however, you may find that using an imported Time Schedule object in the Data Explorer makes the process significantly more efficient. You can either import the well observation data or create a new well data object and then add/edit the observation data. To define well observations, you must first have a well data object in the Data Explorer with observation data. O Concentration : solute concentration of the specified species (note that an extra field must be present to define the species) O Head : the hydraulic head measured in the well or piezometer as top of casing elevation minus depth to water

Time : the time as an absolute date/time or more commonly as elapsed time relative to the model start date.

For pieozometers, this is typically the elevation of the open-ended bottom of the piezometer. For monitoring wells, this is typically the midpoint elevation of the screen.

Elevation : the elevation at which the observation occurred.

Location : x- and y-coordinates of the sampling point.

Well observations include groundwater data collected from wells and piezometers and consist of four components: Then use the Assign button to assign the appropriate object type (described below) defining the observation location.

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