Current Events

  • Irish Chronicles Document Links Between Volcanoes and Weather
    A study of over 40,000 written entries in Irish Annals and ice core measurements shows a strong corr...Read more

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    Irish Chronicles Document Links Between Volcanoes and Weather

    A study of over 40,000 written entries in Irish Annals and ice core measurements shows a strong correlation between the occurrence of volcanic eruptions and extreme cold weather in Ireland over a 1200 year period. Data analyzed in this study cover the period from 431 to 1649, during which time up to 48 volcanic eruptions are identified in Greenland ice core records through deposition of volcanic sulfate in annual layers of ice. You can find the study (open access), published on 6 June 2013 in IOP Publishing's journal Environmental Research Letters, at http://iopscience.iop.org/1748-9326/8/2/024035/article. Find out more about how volcanoes can influence climate.
  • EF-5 Tornado in El Reno, Oklahoma Widest Ever Recorded in US
    The EF-5 tornado that hit El Reno, Oklahoma on May 31st was the widest ever recorded in the US, acco...Read more

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    EF-5 Tornado in El Reno, Oklahoma Widest Ever Recorded in US

    The EF-5 tornado that hit El Reno, Oklahoma on May 31st was the widest ever recorded in the US, according to the National Weather Service in Norman Oklahoma. The tornado, which remained on the ground for 40 minutes and reached 2.6 miles across (4.2 km), took the lives of 18 people including storm chasers Tim Samaras, Paul Samaras and Carl Young. For more information on the tornado, visit http://ow.ly/i/2hfDG.
  • Atmospheric CO2 Level Tops 400 ppm
    During the week of May 13th, the CO2 level at the Mauna Loa Observatory in Hawaii topped 400 ppm rep...Read more

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    Atmospheric CO2 Level Tops 400 ppm

    During the week of May 13th, the CO2 level at the Mauna Loa Observatory in Hawaii topped 400 ppm repeatedly. Daily levels of CO2 can vary due to weather, and there are seasonal trends as well. The level of atmospheric greenhouse gases continues to increase, now over 120 ppm since the Industrial Revolution began. For more on the Keeling Curve, see http://keelingcurve.ucsd.edu/. Find out more about greenhouse gases and warming.
This global montage is created and updated every 6 hours using satellite data, sea surface temperatures, and observed land temperatures.
Click on image for full size
Courtesy of the Space Science and Engineering Science Center, University of Wisconsin - Madison.

Atmospheric Science Literacy - Essential Principle 3

Atmospheric circulation transports matter and energy.

Fundamental Concept 3.1
Horizontal and vertical energy imbalances in the Earth System produced by unequal heating of Earth's surface create movement in the atmosphere and the ocean.

Fundamental Concept 3.2
Energy is exchanged within the atmosphere, as well as gained and lost across its interface with land and ocean through physical, geological, and biological processes organized in Earth System cycles (e.g. the water cycle). These exchanges help drive atmospheric circulations.

Fundamental Concept 3.3
Patterns of circulation in Earth's atmosphere can be observed at many different spatial scales from global to local. Temperature differences, the rotation of Earth on its axis, and the configuration of the continents and oceans establish the large-scale atmospheric circulation.

Fundamental Concept 3.4
Atmospheric transport of water affects the formation and development of clouds, precipitation, and weather systems, which are all important components of the global water cycle.

Fundamental Concept 3.5
Atmospheric circulations distribute matter and energy globally and establish weather and climate patterns.

Last modified July 29, 2009 by Becca Hatheway.

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The Winter 2009 issue of The Earth Scientist, focuses on Earth System science, including articles on student inquiry, differentiated instruction, geomorphic concepts, the rock cycle, and much more!

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