Cloud Protocols Cloud Protocols Cloud Protocols 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 Cloud Protocols Inquiry Context • Does cloud cover affect surface temperature and surface air temperature? • What is the relationship between clouds and precipitation? • Is there a relationship between contrails and cloud cover? Cloud Protocols Local Inquiry Example Cloud Protocols Why do GLOBE scientists research clouds? • To better calculate the rate of heat exchange in the atmosphere • For verification and improvement of automated remote sensing • To understand how cloud climatology may be changing • To help improve interpretation of satellite observations of Earth’s radiative balance • To provide ground-based data on contrails Cloud Protocols Science Content: The Cloud Triangle Clouds can be defined by: • Their shape & form • The cloud base altitude • If they are precipitating Cloud Protocols Science Content: Cloud Shape The 3 main cloud shapes are: Cumulus Stratus Cirrus (Puffy) (Layered) (Wispy) Altitude and shape are keys to identifying clouds. Cloud Protocols Science Content: High Clouds Cirrus Cirrostratus High-level clouds Cirrocumulus Cloud Protocols Science Content: Middle Clouds Altostratus Mid-level clouds Altocumulus Cloud Protocols Science Content: Low Clouds Low-level clouds Stratus Cumulus Stratocumulus Cloud Protocols Science Content: Low Clouds with precipitation Nimbostratus Low-level clouds Cumulonimbus Cloud Protocols Science Content: Contrail Types Short-lived Persistent Persistent Non-spreading Spreading Cloud Protocols Science Content: Estimating Percentages Cloud Cover No Clouds Clear Isolated Scattered Broken Overcast 0% 0 - 10% 10 - 25% 25 - 50% 50 - 90% >90% Contrail Cover No Contrails 0-10% 10-25% 25-50% >50% 0% Cloud Protocols The Measurements Cloud Type • Contrail Type • Percentage of Cloud Cover • Percentage of Contrail Cover Cloud Protocols Collecting Data: Field/Lab Guides & Data Sheets Field/Lab Guides: • Cloud Cover and Contrail Cover Protocol Field Guide • Cloud Type and Contrail Type Protocol Field Guide Data Sheets: Use one of the following: • Clouds 1-Measurement Data Sheet • Clouds 7-Measurement Data Sheet • Integrated 1-Day Data Sheet • Integrated 7-Day Data Sheet Cloud Protocols Collecting Data: Protocol • Look at the sky in every direction • Estimate and record the % of coverage by clouds & contrails • Identify and record the number of each type of contrail Cloud Protocols Collecting Data: Procedures Blowing Snow Listed are examples of Heavy Snow obscuring conditions Heavy Rain • If more than one- Fog fourth of the sky is Spray obscured, record Volcanic Ash and report the Smoke reason on the data Dust sheet. Sand Haze Cloud Protocols Enter Data on the GLOBE Web Site Step 1: Confirm that the atmospheric study site definition is completed Step 2: Select “Cloud Observations” from the atmosphere data entry menu Step 3: Enter date/UT time/select site Step 4: Enter cloud observation data Step 5: Confirm data entries on verification page Cloud Protocols Looking at the Data: Contrail Type Cloud Protocols Classroom Implementation • Inquiry • Curriculum/Standards Alignment • Assessment • Classroom Management Cloud Protocols 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!
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