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.
Photo of Paquita Zuidema in the Cordillera Huayhuash of Peru
Image Courtesy of Paquita Zuidema

Dr. Paquita Zuidema

Hola!

I am originally from the Netherlands and thereafter spent 3 years as a child in the Peruvian Andes, but I have lived most of my life in the United States. I received my bachelor's degree in physics from the University of Illinois, in what I consider to be my hometown of Urbana, Illinois. I pursued public policy for a while, and didn't think about becoming a meteorologist until I found myself in graduate school studying physics at the University of Washington, next door to a great atmospheric sciences department. I finished at University of Colorado in Boulder, CO. Ultimately atmospheric sciences provided the blend of hard science and environmental consciousness that was the right path for me. I currently live in Miami, Florida, which is a step back closer to South America. I'm thrilled that my work takes me back near Peru. I well remember Peru's dry coastal deserts and mountains from my childhood, revisited as an adult, and now I have the opportunity to understand more completely why the meteorology and climate are what they are.

During VOCALS I will be responsible for cloud liquid water measurements, both from the NCAR plane and the NOAA ship. Such measurements are valuable for many reasons, including influencing when the clouds rain (usually so lightly the drizzle rarely reaches the surface), and how bright - or white - the clouds are. It's an important measurement for separating the impact of particles such as dust and human-induced pollution on clouds, from cloudiness changes caused by weather systems.

Much more can be learned from one data set by combining them with data sets that other scientists are responsible for. Together the data also help us evaluate and develop confidence in the models we depend on for weather forecasts and climate change predictions. In this way the sum knowledge from a large experiment such as VOCALS becomes greater than what each scientist contributes independently. This is what makes VOCALS so scientifically rewarding. I hope I will be able to share some of what we learn with you.

Last modified September 19, 2008 by Becca Hatheway.

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