The Diurnal Pressure Oscillation on a Heated Mountain Island

Pyle, Robert L.

doi:10.1175/1520-0469(1959)016<0467:tdpooa>2.0.co;2

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“…At this stage in the study we can only assume that these effects are due to horizontal pressure gradients across the summit region and that these gradients are caused perhaps by local differences in winds, air temperature, and summit-cone surface and subsurface conditions. Pyle (1959) has indicated the variability of local diurnal pressures arising from island mountain effects in Hawaii.…”

Section: Discussion and Speculationsmentioning

confidence: 99%

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Shorter contributions to geophysics, 1979

Woodcock¹,

Friedman²,

Johnson³

et al. 1980

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Al Introduction ___________________________________________________ 1 Acknowledgments ______________________________________ 2 Observations ______________________________________________________ 3 Latent heat loss to the air _________________________________ 5 Source of heat ________________________________________ 5 Sensible heat of inflowing air as source of latent heat in outflowing air _ 5 Conduction of heat into the mountain ______________________ 5 Snow and rainwater as a sensible heat source ______________________ 6 Discussion and speculations ________________________________ 6 Conclusions ____________________________________________________ 8 References cited _________________ _____________________ 8 ILLUSTRATIONS Page FIGURE 1. Photograph showing north-northeast view over Mauna Kea summit area ________________ A2 2. Graph showing time-related differences in average direction and volume of airflow in the drill holes, summit cone of Mauna Kea, Hawaii ____________________________________ __________ ___ 3 3. Graph showing temperature versus depth over time in a summit-cone drill hole over a period of about 6 months, Mauna Kea, Hawaii __________________________________________________ 4 TABLES Page TABLE 1. Comparative temperature, water vapor, and speeds of motion of air flowing out of the drill hole on the summit cone and in the free air above, Mauna Kea, Hawaii ___________________________________ _ A3 2. Deuterium in water vapor from 2-liter samples of nearly saturated air flowing from the summit-cone drill hole, Mauna Kea, Hawaii ___________________________________ __ 4 3. Deuterium in snow, graupel, permafrost, and lake waters of the Mauna Kea summit area, Hawaii ______ 7 ill

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Section: Discussion and Speculationsmentioning

confidence: 99%

“…The role of synoptic atmospheric pressure changes in forcing air in and out of the mountain has not been considered. These pressure changes are thought to average only a small fraction of the semidiurnal or diurnal pressure changes in Hawaii mountain locations (Pyle, 1959).…”

Section: Discussion and Speculationsmentioning

confidence: 99%