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.
These photos show the two ships used in the VOCALS field campaign.
Images courtesy of NOAA and IMARPE.

Research Ships Used in the VOCALS Campaign

Two ocean-going research vessels are involved in the VOCALS field campaign. Both ships make numerous measurements of the atmosphere, clouds, and conditions in the ocean within the VOCALS research area. The efforts of scientists on the ships are coordinated with observations from aircraft and satellites. This allows VOCALS scientists to view the atmosphere and clouds from above and below at the same time and to measure properties of the ocean directly and from afar.

The Research Vessel Ronald H. Brown is operated by the US National Oceanic and Atmospheric Administration (NOAA). The ship is named in honor of the former Secretary of the U.S. Department of Commerce, Ronald H. Brown, who was an ardent supporter of the NOAA fleet. Its home port is Charleston, South Carolina. The Ron Brown carries many scientific instruments, including radar, LIDAR, spectrometers, temperature sensors, and more. The ship can make a host of measurements of clouds, ocean conditions, atmospheric aerosols, wind, and rain, to name but a few.

The Research Vessel José Olaya Balandra is one of three research ships operated by the Instituto del Mar del Perú (IMARPE). José Olaya Balandra was a fisherman who was martyred during the Peruvian fight for independence from Spain in the early 1800s and is now a national hero. The ship's home port is Lima, Peru. During VOCALS, the main research goals of the José Olaya Balandra are to study interactions between the atmosphere and the oceans and to investigate eddies that carry upwelled water from coastal waters to locations further offshore.

There are also several buoys off the South American coast that continuously take readings of atmospheric and oceanic conditions, including during the VOCALS campaign.

Last modified September 25, 2008 by Randy Russell.

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