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Hank's rule states that the 5400 m contour for the 1000-500 hPa thickness is a rough predictor for the rain-snow boundary, i.e. about 50% of the time the 5400 m contour corresponds to snow at low elevations. Calculate the mean temperature of a 1000-500

Hank's rule states that the 5400 m contour for the 1000-500 hPa thickness is a rough predictor for the rain-snow boundary, i.e. about 50% of the time the 5400 m contour corresponds to snow at low elevations. Calculate the mean temperature of a 1000-500

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Hank's rule states that the 5400 m contour for the 1000-500 hPa thickness is a rough predictor for the rain-snow boundary, i.e. about 50% of the time the 5400 m contour corresponds to snow at low elevations. Calculate the mean temperature of a 1000-500 hPa layer that is 5400 m thick. Assuming that the temperature varies as T(z) = To-Tz and that the mean temperature occurs at the midpoint of the layer (2700 m), what lapse rate is required to produce a freezing temperature at the surface (z = 0)? How does this compare to typical lapse rates for the troposphere?
Transcribed Image Text:Hank's rule states that the 5400 m contour for the 1000-500 hPa thickness is a rough predictor for the rain-snow boundary, i.e. about 50% of the time the 5400 m contour corresponds to snow at low elevations. Calculate the mean temperature of a 1000-500 hPa layer that is 5400 m thick. Assuming that the temperature varies as T(z) = To-Tz and that the mean temperature occurs at the midpoint of the layer (2700 m), what lapse rate is required to produce a freezing temperature at the surface (z = 0)? How does this compare to typical lapse rates for the troposphere?
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