User's Manual

Density Circulation Model ME-6816

3. Record the value of the initial conductivity of the warm reservoir in the Data section.

4. Move the salinity sensor to the cool reservoir and repeat the process to measure and record the initial conductivity of the cool

reservoir.

5. Delete the two data runs after you have recorded the initial conductivity of each reservoir in the Data section.

6. Open the top valve and the bottom valve to allow circulation. Wait a few minutes.

7. Position the tip of the salinity sensor at the 20 cm mark of one of the reservoirs.

8. Click or touch “Start” to begin data recording.

• Watch the value of conductivity in the first cell of the Table display.

9. Click or touch “Keep” to record the value of conductivity at the 20 cm mark.

10. Move the salinity sensor so the tip is at the 19 cm mark of the reservoir. Wait a few seconds.

11. Click or touch “Keep” to record the value of conductivity at the 19 cm mark

12. Continue the process until the tip of the salinity sensor is at the 1 cm mark. After recording the value at the 1 cm mark, click or

touch “Stop” to end data recording.

Data

Data Analysis

1. Examine the data in the Graph display.

Resize the graph area if necessary to

see all of the data.

2. Identify the zone of rapid conductivity

change on the Graph display.

3. Use the data analysis tools to deter-

mine the final conductivities in both

reservoirs.

Questions

1. How does the colored “mixed” zone

compare to the zone of rapid conduc-

tivity change?

2. How is the conductivity at the very top and very bottom different after the mix?

3. How does the mixed model relate to actual water bodies in the oceans

Warm reservoir Cool reservoir

Initial Conductivity