Water Temperature Protocol Draft 2005 Water Temperature Protocol

Water Temperature Protocol Draft 2005

Water Temperature Protocol Goals for the Training Session • Provide an inquiry context for the data collection and science content • Provide accurate science content • Review procedures for instrument calibration • Review procedures for data collection • Review data entry and analysis • Discuss classroom implementation ideas • Collect feedback from participants Draft 2005

Water Temperature Protocol Inquiry Context • How does water temperature compare to air temperature? • How does a rain event or snow melt affect water temperature? • How does the water temperature vary across seasons? • How does water temperature relate to other water quality measurements? Draft 2005

Water Temperature Protocol Local Inquiry Example Draft 2005

Water Temperature Protocol Why do GLOBE scientists research water temperature? • To track the mixing of waters in estuaries and along coasts • To help determine the evaporation rates • To help determine what can live in water • To determine the overturning of lakes Draft 2005

Water Temperature Protocol Science Content Processes Affecting Water Temperature: – Sunlight or Shade – Discharges of warmer or cooler water – Reflected heat from land cover Processes Affected by an Increase in Water Temperature: – Increase in rates of chemical reactions – Increase in respiration rates in organisms – Increase in growth rates – Decrease in solubility of gases Draft 2005

Water Temperature Protocol Instruments: Alcohol-Filled Thermometer Draft 2005

Water Temperature Protocol The Measurements • Thermometer Calibration • Water Temperature – Three separate measurements Draft 2005

Water Temperature Protocol Collecting Data: Field/Lab Guides & Data Sheets Field/Lab Guides: • Calibrating the Hydrology Thermometer Field Guide • Water Temperature Protocol Field Guide Optional: • Collecting a Water Sample in a Bucket Field Guide Data Sheets: • Hydrology Investigation Data Sheet Draft 2005

Water Temperature Protocol Collecting Data: Calibrating the Thermometer • Stir together distilled water and crushed ice • Let sit for 10 -15 minutes • Submerge thermometer in ice-water bath for three minutes, stir occassionally • Thermometer should read between -0. 5° C and +0. 5° C Draft 2005

Water Temperature Protocol Collecting Data: Protocol • Lower thermometer 10 cm into water for 3 -5 minutes • Read temperature at eye level, keeping bulb in water • Thermometer should be in water for 1 minute • Take two more measurements • Average three temperatures • Check for accuracy Draft 2005

Water Temperature Protocol Enter Data on the GLOBE Web Site Step 1: Confirm that the Hydrology Study Site definition is completed Step 2: Select “Hydrology Measurements” from the Hydrology data entry menu Step 3: Enter date/UT time/select site Step 4: Enter the “water state” and temperature measurements Step 5: Confirm data entries on verification page, especially the Average Water Temperature Draft 2005

Water Temperature Protocol Looking at the Data N Water & Air Temperature Banyangsung, Kanchanaburi, Thailand E S W Draft 2005

Water Temperature Protocol Classroom Implementation • • Inquiry Curriculum/Standards Alignment Assessment Classroom Management Draft 2005

Water Temperature Protocol Getting Started • The GLOBE Web site has information http: //www. globe. gov • GLOBE Help Desk is available to support you as you get started. • Get your students involved doing real science! Draft 2005