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Measuring and Modeling
  • Measuring and Modeling: timeline
  • In their own words: Joachim Kuettner
  • In their own words: T.N. Krishnamurti
  • UCAR at 40
    Who We Are
    Introduction
    One Planet, One Atmosphere
    Between Sun and Earth
    Measuring and Modeling
    When Weather Matters Most
    Spreading the Word
    Knowledge for All
    Looking toward the Future
    UCAR at a Glance
    List of acronyms

    Tiruvalam Krishnamurti is a professor in the Department of Atmospheric Sciences of Florida State University. His research interests include high-resolution forecasting of hurricane tracks, landfall, and intensities; short- and long-range monsoon prediction; and interseasonal and interannual variability of the tropical atmosphere. Krishnamurti is a recipient of the Carl Gustav-Rossby Research Medal of the American Meteorological Society.

    (Photo courtesy Florida State University) The NCAR computing facility has been a backbone for my lab's computing since 1965, when we started using the CDC 6600 machine. Then, Akira Kasahara and Warren Washington were the pioneers of general circulation modeling—and they still are, some 35 years later!

    In the early 1970s my graduate student Masao Kanamitsu and I used to arrive at NCAR every month for a weekend with our boxes of data and Fortran codes on punch cards. The NCAR help desk was always available to steer us. Computing in those days was a long and arduous process. It was not uncommon to see some of the best in the field wandering the hallways late at night, discussing future directions for numerical weather prediction and climate modeling. After long nights of computing, we needed to grab 40 winks on the cots in the first aid room before we returned to work on Monday.

    NCAR led the world in large-scale atmospheric computing in the 1970s. In 1977 the CRAY-1 machine provided us with invaluable computing for our early efforts on tropical numerical weather prediction. (For this and all our studies, we have relied on the Data Support Section at NCAR, especially the indispensable Roy Jenne.) The close ties between the NCAR computing facility and the computer manufacturer were evident in the success of the CRAY-1. Seymour Cray worked with Stu Patterson, Jeanne Adams, and others at NCAR to develop the needed software to make the CRAY-1 a truly successful computing platform.

    Chester Newton was my teacher of mesoscale meteorology at the University of Chicago, and he visited Florida State University (FSU) on several occasions in the 1970s and 1980s. In the late 1980s and early 1990s, we developed the concept of physical initialization. The CRAY C-90 was one of the computers that enabled us to move to very high resolution (triangular 255 waves) for initializing precipitation and monsoon forecasts.

    The computing resources at NCAR have helped further the careers of a number of my students. David Baumhefner joined NCAR in 1966 and started his modeling career at the Mesa Lab. Dave has earned himself a great reputation for his careful modeling contributions. Phil Rasch, a joint NCAR-FSU Ph.D. student under the direction of Dave Williamson and myself, is currently a world-renowned scientist on transport chemistry issues.

    Over the years we university visitors have received invaluable help in the computing area from Stu Patterson, John Adams, Jeanne Adams, Gloria Williamson, Bill Buzbee and many others. The modeling groups at FSU and NCAR have always exchanged visits, which have led to many improvements to our models. NCAR's Community Climate Model and the NCAR/Penn State Mesoscale Model are the most widely used global and regional atmospheric models in our entire community. The most recent versions of both models came largely from the efforts of NCAR scientists. University science has benefited immensely from having these platforms, especially for climate and mesoscale weather. NCAR computer facilities have provided the needed support to make these models as truly national and international as possible.

    UCAR at 40
    Who We Are
    Introduction
    One Planet, One Atmosphere
    Between Sun and Earth
    Measuring and Modeling
    When Weather Matters Most
    Spreading the Word
    Knowledge for All
    Looking toward the Future
    UCAR at a Glance
    List of acronyms


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    Executive editor Lucy Warner, lwarner@ucar.edu
    Prepared for the Web by Jacque Marshall
    Last revised: Fri Jan 26 17:18:32 MST 2001