During the stormy summer of 2005, hurricanes Katrina and Rita raised concerns about the potential effects of global warming on tropical cyclones. At the same time, the Amazon rainforest was experiencing one of its most intense droughts of the last century.
Atmospheric scientists around the world are mourning the loss of Joanne Simpson. The 87-year-old researcher, who upended stereotypes and made landmark contributions to meteorology, died on 4 March in Washington, DC.
If the last few years have seen a so-called quiet Sun, its silence has spoken volumes. Researchers have taken advantage of a raft of new sensors and a special observing campaign to learn much about what happens when the sun temporarily powers down.
Unidata celebrated its 25th anniversary on 15-16 October with a rare gathering of staff, founders, partners, and collaborators from around the country. Attendees celebrated the program's accomplishments and looked ahead to the future.
The giant comma-shaped storm systems that traverse the Midwest from fall through spring carry more than a few secrets. Radar, lidar, and profiler beams are now slicing through those storms, hunting for small-scale features that normally go unobserved.
Years before Congress began debating greenhouse-gas reduction, more than 500 U.S. cities had pledged to reduce their carbon footprints in line with the goals of the Kyoto Protocol. Now American cities are leading the way on adapting to climate change.
In eastern Tennessee a portrait of Earth's progression from ice age to present is taking shape. Each day, up to 100 years of climatic history unfolds. By early this year, the story will be complete, thanks to some five million processing hours on supercomputers at the Oak Ridge National Laboratory.
A growing body of research now confirms that the Montreal agreement averted at least one catastrophic form of climate change, even if others still loom. "The Montreal Protocol is a major success story," says William Randel.
This spring the second Verification of the Origins of Rotation in Tornadoes Experiment (VORTEX2, or V2) captured one tornado in unprecedented detail, as well as a number of potentially tornadic thunderstorms that never made the grade.
When you've been studying the ways of the atmosphere since the 1930s, you have many tales to tell. Joachim Kuettner has been sharing his life stories, including some lesser-known ones, in a new round of oral and video histories.
In a breakthrough that will help scientists unlock mysteries of the Sun and its impacts on Earth, an international team of scientists from NCAR and the Max Planck Institute for Solar System Research has created the first-ever comprehensive computer model of sunspots.
Eleven days can go by in no time, but their brevity was accentuated for 27 graduate students at a summer colloquium on 1–12 June. The goal was to give students a taste of fieldwork by having them organize and conduct mini–field experiments and draw meaningful results from the data.
Along with unusually persistent rains, there was a different kind of watery surprise this summer for people on the U.S. Atlantic coast. From the barrier islands of the Southeast to the rocky shores of Maine, tides ran as high as 2 feet above predicted values.