Digital Multi-Day Max/Min/Current Air and Soil Temperature Protocol

1. Digital Multi-Day Max/Min/Current Air and Soil Temperature Protocol

2. Goals for the Training Session • Provide an inquiry context for the data collection and science content • Provide accurate science content • Review procedures for data collection • Review data entry and analysis • Discuss classroom implementation ideas • Collect feedback from participants

3. Inquiry Context • Which season has the highest temperature? Lowest temperature? Why? • How does the soil temperature range compare with the air temperature range? • What are the latitudes and elevations of other GLOBE schools with atmosphere temperature data similar to yours?

4. Local Inquiry Example

5. Why do GLOBE scientists research Max/Min/Current Air and Soil Temperature? • To provide a denser network of observations than is available using only official weather stations for investigating localized variations • To augment data needed for regional forecasts and climate records in areas of the world where there are few official weather stations • To compare with model data, or to use as input to run a model

6. Science Content

7. Instruments: Digital Multi-day Max / Min Thermometer • Two sensors: • One measures air temperature • One measures soil temperature at a depth of 10cm • Stores six days of max/min temperatures • Must be reset to around the time of local solar noon one time when it is first set up • The exact time it is reset is known as the Time of Reset

8. The Measurements • Digital Thermometer Calibration • Current temperature for air and soil • Daily maximum and minimum temperatures for air and soil

9. Collecting Data: Field/Lab Guides & Data Sheets Field/Lab Guides: • Thermometer Calibration Lab Guide • DM-D M/M Thermometer Sensor Calibration Field Guide • DM-D M/M Thermometer Installation Field Guide • DM-D M/M Thermometer Reset Field Guide • DM-D M/M Temperature Protocol Field Guide • DM-D M/M Current Temperature Protocol Field Guide • DM-D M/M Current Soil Sensor Error Check Lab/Field Guide • Changing the Battery in the DM-D M/M Thermometer Field Guide Data Sheets: • DM-D M/M Thermometer Calibration and Reset Data Sheet • DM-D M/M Thermometer Data Sheet

10. Collecting Data: Calibration • Submerge calibration thermometer in an ice-water bath for 10-15 minutes, stir occasionally • Calibration thermometer should read between -0.5° C and +0.5° C • Hang calibration thermometer in instrument shelter • Read five sets of readings • Record and report data to GLOBE Web site

11. Air Soil On On Max Max Min Collecting Data: Protocol • For both air and soil temperatures: • Press ON button to read current temperature • Press the Max/Min button twice to read maximum/minimum temperature of first day (D.1) • Continue to press Max/Min Button once to read temperatures of other days (D.2-D.6) Min SOIL AIR

12. Enter Data on the GLOBE Web Site Step 1: Confirm that the atmospheric study site definition is completed Step 2: Select “Digital Thermometer Calibration and Reset” from the atmosphere data entry menu Step 3: Enter date/UT time/select site/ Step 4: Enter calibration data Step 5: Confirm data entries on verification page

13. Enter Data on the GLOBE Web Site Step 1: Confirm that the atmospheric study site definition is completed Step 2: Select “Digital Thermometer Measurements” from the atmosphere data entry menu Step 3: Enter date/UT time/select site/probes Step 4: Enter air and soil temperature data Step 5: Confirm data entries on verification page

14. Looking at the Data

15. Classroom Implementation • Inquiry • Curriculum/Standards Alignment • Assessment • Classroom Management

16. Getting Started • The GLOBE Web site has information http://www.globe.gov • GLOBE Help Desk or your Country Coordinator can support you as you get started. • Get your students involved doing real science!