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Carl Hane Distinguished Speaker Series

February 1 & 2, 2007

Dr. Carl E. Hane, . Meteorologist within the National Oceanic and Atmospheric
Administration (NOAA) at the National Severe Storms Laboratory, Norman, OK.

Meet Dr. Hane in a informal setting Thursday, February 1 at 2:00pm -08-1305.

Thursday, February 1, 2007 4:00pm - 08-1250 Van Peursem Auditorium, College of Science

Forecasting the Weather – from Thunderstorms to Climate:
Observations and Computer Models
ABSTRACT: Great advances have been made in the last 50 years or so in forecasting the weather. These advances are a result of technological improvement in instrumentation, faster computers, and results of research that have allowed greater understanding of how the atmosphere works. One cannot avoid the idea of scale (both temporal and spatial) in any discussion of forecasting. Obviously, thunderstorms and the severe weather that often accompanies them occur on smaller spatial and temporal scales than, for example, the weather systems that move over the continents and oceans.
The talk will begin with a discussion of what most people envision when they here the term “weather forecasting” – the weather systems that include areas of high and low pressure, fronts, and large areas of precipitation. This will be followed by a description of the more recent development of techniques to forecast thunderstorms. Finally, the question of forecasting on climatic time scales will be addressed briefly. In discussing each of these topics, the necessary atmospheric variables, instrumentation for collecting data of various kinds, and computer models used in forecasting will be described.
Friday, February 2, 2007 -1:00pm - 76-1275  Technical Talk (IS&T lunch meeting)
Development of Thunderstorms along the Dryline:
New Ideas Based upon Analysis of Observations

ABSTRACT: The dryline is a boundary separating moist and dry air that in the United States is most often located over the western portion of the Great Plains. It can form during all seasons, but does so most frequently in the springtime. In most cases it is essentially the intersection of the top of the moist boundary layer over the central and eastern United States with the terrain that slopes upward to the west. During the 1990’s an intensive field program was carried out over Oklahoma, Kansas, and Texas for the purpose of better understanding why thunderstorms form at certain locations along the dryline. This field program involved observations from instrumented aircraft, Doppler radars, mobile field laboratories, a small-scale surface network, and larger scale operational observing systems. Analysis of data from two dryline cases will be described and interpreted with regard to initiation of thunderstorms at certain locations. In each case it will be shown that the properties of the underlying surface (as observed remotely by satellite) played a major role in thunderstorm initiation.
Biography
Grew up in Kansas and earned BS in Meteorology and BA in Math from the University of Kansas. Attended graduate school at Florida State University and earned MS and PhD in Meteorology (1972). Post-doctoral fellow at the National Center for Atmospheric Research (Boulder, CO), 1972-73. Atmospheric Science Department, Battelle Northwest Laboratories (Richland, WA), 1973-1976. Meteorologist within the National Oceanic and Atmospheric Administration (NOAA) at the National Severe Storms Laboratory (Norman, OK), 1976-present. He is an Adjunct Professor within the School of Meteorology at the University of Oklahoma and a Fellow of the Cooperative Institute for Mesoscale Meteorological Studies.
His research began with the development of a two-dimensional numerical thunderstorm model. This was followed by development of a method to derive pressure and temperature variables from the wind field within thunderstorms. In the 1990’s he lead analyses of data from a field program to better understand why thunderstorms form along the dryline at certain locations and times. His final area of research has been an effort to better understand the evolution of mesoscale convective systems.
He and his wife (of 40 years) Nancy plan to retire later this year. They are proud parents of daughter Elizabeth and son Andrew.