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.
The French research vessel "Marion Dufresne" – named after the French explorer who reached Tasmania before the English and the first European to make contact with Tasmania’s indigenous population. The ship was first launched in 1995.
Image courtesy of Missy Holzer and the PACHIDERME program

Deep Sea Sediment Cores Provide Clues to Climate Puzzle

Climate puzzle pieces are hidden in many obscure places around the globe including in the ocean sediments that have accumulated over recent and distant past. Removing these treasure latent cores from the ocean depths provides information about past climates including atmospheric and oceanic conditions. The focus of the upcoming 3 week research cruise of the Research Vessel Marion Dufresne (shown above), of the French Polar Institute (IPEV), off the coast of Chile embarking on February 6, 2007 will be to collect approximately 25 deep sea cores to help answer the puzzling questions about climate change. The goals of the PACHIDERME (PAcifique- CHILi-Dynamique des Eaux intermediaries) cruise under the guidance of Chief Scientist Dr. Catherine Kissel will be to determine the thermocline and intermediate water ventilation in the far Southeastern Pacific, to study the past latitudinal intensity variability of the west wind belt, and to study the climatologic chronology of the glaciation and climate change of the region among others.

Besides a number of noted research scientists from around the world onboard will be 4 teachers immersing themselves in the experience of life at sea and research with the guidance of one scientist. Their students will be taking part in this cruise by sending emails, participating in blogs, and journaling about the daily exploits of those onboard. You and your students can join the "Core-Education" Team as they journey up the coast and between the fjords of Chile by sending them emails about the science and the research. Send your emails to coredu@marion.ipev.fr and they will enjoy getting back to you.

Missy Holzer, Erika Gutierrez, Edith Poblete, Luis Pinto and Carlo Laj
Last modified February 12, 2007 by Roberta Johnson.

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