User's Manual

ME-6816 012-12254A Data

Data

Data Analysis

1. Examine the data in the Graph dis-

play. Resize the graph area if neces-

sary to see all of the data.

2. Identify the zone of rapid tempera-

ture change on the Graph.

3. Use the data analysis tools to deter-

mine the final temperatures in both

reservoirs.

Questions

1. How does the colored “mixed”

zone compare to the zone of rapid

temperature change?

2. How is the temperature 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?

Using the Model with a Salinity Sensor

Equipment Setup

1. Replace the temperature sensor with a PASCO Salinity Sensor.

2. Prepare the Density Circulation Model for salinity.

Experiment Setup

• Use the data acquisition software to set up a Table into which you can enter data and a Graph to view your data.

1. Use the PASCO data acquisition software to set up an experiment with a Table display of Conductivity and Depth (cm).

2. Set up the experiment for manual sampling so that conductivity is measured by the sensor and depth is entered manually. Enter

the depth data in the Table display starting at 20 cm and ending at 1 cm with 1 cm decrements.

3. Set up a Graph display that will show Conductivity versus Depth (cm)..

Data Recording

Note: Data recording is easier if one person handles the Density Circulation Model and another person handles the computer or

data logger.

1. Put the salinity sensor in the warm water reservoir at the 10 cm depth.

2. Click or touch “Start” to begin data recording. Click or touch the “Keep” button to record the initial conductivity of the warm

reservoir. Click or touch “Stop” to end data recording.

Warm reservoir Cool reservoir

Initial Temperature