11.2. Observations

Define observation locations using the “Observations” function to create hydrographs for user-specified locations. In MINEDW, observations are input as either “Monitoring Boreholes“ with screened intervals or “Piezometers“ with measurements at discrete x, y, and z locations. “Piezometers“ extract results from discrete x, y, and z locations, while “Monitoring Boreholes“ extract results averaged along a screened vertical interval.

To add a new monitoring borehole, select the “Monitoring Borehole” tab and then click “Add“ at the right of the dialog box. A new entry is added. Enter the name of the monitoring borehole and the corresponding “X“ and “Y“ as well as “Screen Top” and “Screen Bottom” information. The information required for monitoring wells is described below. The “Add,” “Insert,” and “Delete“ buttons on the right of the “Monitoring Borehole” tab add or delete monitoring boreholes.

../../_images/fig-edit_observations.png

Figure 11.1 The “Edit Observations“ dialog box

Name:

The name (or other identifier) of the monitoring borehole.

X:

The x coordinate of the monitoring borehole (m or ft).

Y:

The y coordinate of the monitoring borehole (m or ft).

Screen Top:

Elevation at the top of the screen (m or ft).

Screen Bottom:

Elevation at the bottom of the screen (m or ft).

To add a new piezometer, select the “Piezometer“ tab and then click “Add“ at the top of the dialog box. This adds a new “Piezometer“ group to the model, but no observations can be extracted unless individual piezometers are added to the group. Under each piezometer, different measurement points can be input (e.g., multi-level piezometers). To add individual measurement points, click “Add“ on the lower right of the “Edit Observations“ dialog box and a new blank entry is added. Enter the name of the piezometer and the corresponding x, y, and z location.

To navigate between different piezometers, a drop-down menu is available at the top. The “Add,” “Insert,” and “Delete“ buttons at the top of the “Piezometer“ tab add or delete piezometer groups.

The information required for a piezometer is described below.

../../_images/fig-observation_points.png

Figure 11.2 The “Edit Observations“ dialog box

Name:

The name (or other identifier) of the piezometer.

X:

The x coordinate of the piezometer (m or ft).

Y:

The y coordinate of the piezometer (m or ft).

Z:

The z coordinate of the piezometer (m or ft).

At the base of the “Edit Observation“ menu, the user can import or export observation files using the “Import” and “Export” buttons.