Atmosphere Conditions

Methods:  Air Temperature

--Plug in the temperature probe into the CH1 of the LabQuest2 unit (sensor ports are on the left side of the unit).  The temperature probe will begin reading the ambient temperature. 

--Tap the green collection arrow at the bottom left corner of the screen.  Make sure the correct Plot number is selected.  Tap “Continue.”  Hold the probe out in front of you at arm’s length.  After the temperature reading stabilizes, tap the temperature box and the stop icon (lower left screen).

--To view your recorded data, tap on the table icon (x|y) at the top of the screen.  You should see the temperature reading added to the correct Plot # row of the table (to the right of your GPS reading).  Scrolling through your table after taking a reading is a great way to confirm that you are collecting data for the right plot.

--Remove the temperature probe from the port and place it back in its storage bag.

 

Methods:  Relative Humidity

Relative humidity is a measurement used to describe the amount of moisture in the air.  It is the amount of moisture actually present in the air, compared to the amount of moisture the air could actually hold, if the air was totally saturated.

--Insert the relative humidity sensor into CH2 of the LabQuest 2 unit (sensor ports are on the left side of the unit).  The unit will immediately begin measuring the relative humidity of the air in your plot.

--Tap on the green collection arrow (bottom left), make sure the correct plot number is selected, and tap “Continue.”

--When the relative humidity reading stabilizes (remains relatively constant), tap on the value.

--Tap on the stop button (lower left) and scroll to the right in the table to see the recorded relative humidity data for your plot.

--Remove the sensor and return it to its storage bag.

 

Methods: Wind Speed

--Insert the anemometer (wind speed sensor) into CH3 of the LabQuest 2 unit (sensor ports are on the left side of the unit).  The unit will immediately begin measuring the wind speed of the air at your plot.

--Tap on the sensor reading box to change the units to km/h.

--Tap on the green collection arrow (bottom left), make sure the correct plot number is selected, and tap “Continue.”

--When the wind speed reading stabilizes (remains relatively constant), tap on the value.  In the notes section, you can record wind gusts if appropriate (see instructions on taking site notes in the next section).

--Tap on the stop button (lower left) and scroll to the right in the table to see the recorded wind speed data for your plot.

--Remove the sensor and return it to its storage bag.

--Be sure to note wind direction in the notes section of the LabQuest2 Unit.  Wind direction describes the compass direction from which the wind is blowing.  See instructions for taking notes in the LabQuest2 unit under “Saving Your Data File and Completing Your Characterization" (Project Instructions>>>>Site Characterization).