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Understanding GLOBE Student Data. GLOBE students study the environment of our planet.
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Transcript of Understanding GLOBE Student Data. GLOBE students study the environment of our planet.
Understanding GLOBE Understanding GLOBE Student DataStudent Data
GLOBE students studyGLOBE students studythe environment of our planetthe environment of our planet
Studying the global environment seems like an enormous task.
How can students participate in such an endeavor?
Students begin by studying their own local environment – looking at the air, the land, the soil, and the water.
Those components represent the Earth systems.
Hydrology
Atmosphere
Land Cover
Soil
Raw Data
GraphsMaps
Students can then visualize data in several different ways.
Data can be displayed as individual data in a map (for instance, this map displays the maximum air temperature
in Europe on March 3, 2000).
The data can be placed on an x,y scatter plot, showing the relationship between air temperature and latitude.
Data can also be displayed as contours (for instance, this mapdisplays the maximum air temperature in Eastern U.S. on March 28, 1999).
Scientists often ask, “Are the data reasonable?”
Look at the colors near Chicago and New York City. Where do these colors lie on the temperature scale? Are these temperatures reasonable in late March?
When we display the data in an x,y plot we can see that theremay be a couple of errors. 55 C at 40 Latitude and 30 C at 42
Latitude don’t seem like reasonable values for late March. What might have happened to cause these errors?
Student data can be compared to Environmental Models
Maximum Temperaturepredicted for this date
by the NOAA EnvironmentalModeling Center
Maximum Temperaturepredicted for this date
by the NOAA EnvironmentalModeling Center
Maximum Temperaturerecorded at GLOBE sites for the preceding 24 hours
Maximum Temperaturerecorded at GLOBE sites for the preceding 24 hours
North America Europe
Data can also be displayed in graphs. This is the mean air temperature for a school in Pennsylvania, USA.
Math extension: how is mean temperature calculated?
Data from multiple schools can be displayed in the same graph.This is the mean air temperature for the school in Pennsylvania, USA
combined with the mean air temperature for a school in Australia. Can you see how air temperature, and perhaps seasons, differ
between Northern and Southern hemispheres?
Data from up to six schools can be displayed in the same graph.This is the mean air temperature for the school in Pennsylvania, USA and
the school in Australia combined with the mean air temperature fora school in Benin. Now, air temperature and seasonal fluctuations can
be seen for Northern and Southern hemispheres as well as near Equatorial.
Data sets are created on demand.
This allows students to get a closer look at a particular year or years.
Data can be displayed in stacked graphs for easier observation.
Graphs of data can also be used as a toolto explain relationships in the natural world.
What environmental data might be represented here?
Whatever data are displayed,they seem to be inversely proportional….
What if you knew that the red line
represented Surface Water (SW) Temperature?
Henry's Law
The value of the Henry's law constant is found to be temperature dependent. The value generally
increases with increasing temperature. As a consequence, the solubility of gases generally
decreases with increasing temperature.
The decrease in solubility of gases with increasing temperature is an example of the operation of
Le Chatelier’s principle.
Henry’s Law states that as temperature increasesthe solubility of a gas decreases. Dissolved Oxygen fits both
Henry’s law and the pattern of the graph.
Student data can display what Henry’s Law states. Notice that as the red line (Water Temperature) increases
the green line (Dissolved Oxygen) decreases.
Data from other parts of the world show the same relationship.
What is the relationship
between precipitation and soil moisture?
Soil moisture values drop during dry periods
and rise again with the introduction of rainfall.
Soil characterization data show Structure; Color; Presence of Nitrogen, Phosphate and Potassium; Consistence; Presence of Roots, Rocks and Carbonates; as well as the distribution
of particle sizes (percent of sand, silt and clay)
Soil characterization Visualizations
Students can then look beyond GLOBE measurements
and begin asking questions about their local environment.
Temperature
Precipitation
Cases of Malaria
Students at this school in Beningraphed cases of malaria with temperature and precipitation.
Students can present their GLOBE research
at Student Research Conferences
Sibenik, Croatia June 29 - July 4, 2003
Fayetteville, Arkansas, USA June 25 - 28, 2000
Helsinki, Finland June 30 - July 4, 1998
GLOBE Student Learning Expedition: Croatia 2003GLOBE Student Learning Expedition: Croatia 2003
• Participants included nearly• 400 students and teachers from
24 countries.• Each country presented their
winning research results.• Two field campaigns included
(inland park and island).• Field campaign data was
presented by students and scientists.
• Cultural and leadership values extended.
Participating countries: Argentina, Bahrain, Cameroon, Canada, Croatia, Cyprus, Czech
Republic, Egypt, Estonia, Finland, Germany, Hungary,
Iceland, Japan, Lebanon, Norway, Poland, Qatar, Spain,
Switzerland, Tanzania, Thailand, UK and USA.
June 28 – July 5 in Šibenik, Croatia
Students can publish their research on the GLOBE Website
GLOBE has trained over 29,000 GLOBE Teachersrepresenting more than 16,000 GLOBE Schools worldwide.
Students have entered over 13 million Measurements to date.
GLOBE data collected by student scientists around the world
are helping us learn more about our global environment.
Use your mouse to go to our Home Page: www.globe.gov
EDUCATION AND SCIENCE: Student investigations and school collaborations, access to the online Teacher’s Guide.
GLOBE DATA: Access to student-collected data, mapping and graphing tools.
GLOBE PARTNERS: Access to country/regional coordinator and school information.
LIBRARY: Access to student, teacher and partner resources.
INFO & HELP: Learn about GLOBE and Frequently Asked Questions (FAQs).
The GLOBE Web site
Poland
ItalyGreece
Netherlands
Switzerland
New Zealand
Japan
Latvia
GLOBE EuropeGermany Hungary
NorwayThailand
India
Lithuania
United Kingdom
The GLOBE Web site… around the World
EstoniaCzech Republic FinlandDenmarkCroatia