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Donald S. Frankel, James Stark Draper, James E. Peak, and J. Carr McLeod

The Artificial Intelligence (AI) Needs Analysis Workshop provided a forum for representatives from government agencies and private industries to explore ways to use Al to solve various problems. Past accomplishments using Al were presented, and areas where Al might be used in future efforts were identified. Each agency suggested their particular problem areas where Al might be expected to solve difficult problems. Reports from three working groups suggested future research areas in which Al has the potential for success.

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W. A. Lahoz, A. O'Neill, E. S. Carr, R. S. Harwood, L. Froidevaux, W. G. Read, J. W. Waters, J. B. Kumer, J. L. Mergenthaler, A. E. Roche, G. E. Peckham, and R. Swinbank

Abstract

The three-dimensional evolution of stratospheric water vapor distributions observed by the Microwave Limb Sounder (MLS) during the period October 1991–July 1992 is documented. The transport features inferred from the MLS water vapor distributions are corroborated using other dynamical fields, namely, nitrous oxide from the Cryogenic Limb Array Etalon Spectrometer instrument, analyzed winds from the U.K. Meteorological Office (UKMO), UKMO-derived potential vorticity, and the diabatic heating field. By taking a vortex-centered view and an along-track view, the authors observe in great detail the vertical and horizontal structure of the northern winter stratosphere. It is demonstrated that the water vapor distributions show clear signatures of the effects of diabatic descent through isentropic surfaces and quasi-horizontal transport along isentropic surfaces, and that the large-scale winter flow is organized by the interaction between the westerly polar vortex and the Aleutian high.

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Richard J. Reed, Robert M. White, Edward S. Epstein, Richard A. Craig, Harry Hamilton, Robert E. Livezey, David Houghton, and Frederick Carr
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