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22 Years of Sea Surface Temperatures
http://www.youtube.com/watch?v=vTig9gKegQk&feature=player_embedded

NOAA (National Oceanic and Atmospheric Administration) Visualizations

This NOAA visualization video on YouTube shows the seasonal variations in sea surface temperatures and ice cover for the 22 years prior to 2007 based on data collected by NOAA polar-orbiting satellites (POES). El Niño and La Niña are easily identified, as are the trends in decreasing polar sea ice.

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Climate Literacy
About Teaching Climate Literacy

The tilt of Earth’s axis relative to its orbit around the Sun results in predictable changes in the duration of daylight and the amount of sunlight received at any latitude throughout a year. These changes cause the annual cycle of seasons and associated temperature changes.
About Teaching Principle 1
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Climate change is a significant and persistent change in an area’s average climate conditions or their extremes. Seasonal variations and multi-year cycles (for example, the El Niño Southern Oscillation) that produce warm, cool, wet, or dry periods across different regions are a natural part of climate variability. They do not represent climate change.
About Teaching Principle 4
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Benchmarks for Science Literacy
Learn more about the Benchmarks

Because the earth turns daily on an axis that is tilted relative to the plane of the earth's yearly orbit around the sun, sunlight falls more intensely on different parts of the earth during the year. The difference in intensity of sunlight and the resulting warming of the earth's surface produces the seasonal variations in temperature.
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Notes From Our Reviewers The CLEAN collection is hand-picked and rigorously reviewed for scientific accuracy and classroom effectiveness. Read what our review team had to say about this resource below or learn more about how CLEAN reviews teaching materials
Teaching Tips | Science | Pedagogy | Technical Details

Teaching Tips

About the Science

  • The NOAA polar-orbiting satellites (POES) have been collecting sea surface temperature data for over 22 years. This animation is a compilation of that data from January 1985 - January 2007.
  • Of note are the changes in the Gulf Stream, El Niño and La Niña cycles (ENSO) in the Pacific, and the seasonal changes in sea ice cover.
  • Comments from expert scientist: The strength of this resource is that it provides a visual animation/ representation of change with time. Therefore, in a minute or so the reviewer gets a real feel for the magnitude of sst changes throughout the time period that we have been making observations. This is an incredibly beneficial tool for use in a classroom!

About the Pedagogy

  • Have students keep track of ENSO fluctuations, the seasonal changes of the sea ice, and polar sea surface temperatures. This is only one of many NOAA visualizations that may be useful in the classroom.
  • As with this and other NOAA Visualizations on YouTube http://www.youtube.com/user/NOAAVisualizations, educators may want to embed the video on a different website because the comments that follow it can be distracting or inappropriate.

Technical Details/Ease of Use

  • Excellent quality.
  • Video can be embedded on another website to avoid commentary on YouTube site.

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