Thermistor array for under ice

Building a thermistor array to leave under the ice for the winter to look at cold stratification of the lake over the winter. Using an adafruit datalogger and 10K thermistors from adadfruit, I have a short string of three thermistors which will be placed in the lake next week hopefully.
String is complete for testing - here are the values being logged to the SD card for 3 thermistors at three depths (currently sitting in the workshop so values are in the 20s).

Jamesville Air temperature on Cosm

Jamesville Air temperature
Jamesville Air Temperature
September Air Temperature

arduino xbee temperature sensor - UPDATE

Been a long time since I looked at this project. Using Tom Igoe's Making Things Talk book, I got an Xbee with an attached potentiometer to send ADC data to an XBee attached to a PC.

Then the data was parsed in processing to plot a dual bar graph of sensor value (ADC) and signal strength.



The drioids.it XBee breakout board can be powered by up to 12V (on-board voltage regulator), and also has outputs for 3.3V.

To run a temp.sensor or other sensors will probably require a separate 5V circuit. The current circuit has the pot connected to AD0 (PIN 22) of the XBee, so could feasibily attach sensors to AD1,2,3 (all at 3.3 V).