Temperature and Ozone Variations Near Tropopause Level over Hurricane Isbell October 1964

Samuel Penn Air Force Cambridge Research Laboratories, Bedford, Mass.

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Abstract

Temperature and ozone data obtained in hurricane Isbell on 14 October 1964 by an instrumented U-2 aircraft are used in conjunction with several radiosonde observations to reconstruct some features of the structure at tropopause level. The tropopause was inclined upwards toward the eye, with a slope of 1:200, except that the slope reached a plateau at a point over the wall clouds. In addition, it appeared that the horizontal variation of vertical motion was insignificant in the upper troposphere and lower stratosphere regions over the hurricane core. An unusual feature found in Isbell was a deep cloud-filled volume over the eye that extended from about 250 to 100 mb (the tropopause pressure).

Abstract

Temperature and ozone data obtained in hurricane Isbell on 14 October 1964 by an instrumented U-2 aircraft are used in conjunction with several radiosonde observations to reconstruct some features of the structure at tropopause level. The tropopause was inclined upwards toward the eye, with a slope of 1:200, except that the slope reached a plateau at a point over the wall clouds. In addition, it appeared that the horizontal variation of vertical motion was insignificant in the upper troposphere and lower stratosphere regions over the hurricane core. An unusual feature found in Isbell was a deep cloud-filled volume over the eye that extended from about 250 to 100 mb (the tropopause pressure).

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