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  • Author or Editor: B. B. Fitzharris x
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M. M. Khatep, B. B. Fitzharris, and W. E. Bardsley

Abstract

The mean water vapor transfer of the Southwest Pacific, as determined from radiosonde records near the 170°E meridional transect, is computed for the 1960–73 period. Emphasis is placed on defining average patterns, then examining variations that arise during the wettest and driest years and seasons in New Zealand over that period. Over the midlatitudes, the mean transfer is predominantly from the west, and most developed in summer. Over the subtropics, the mean summer transfer is predominantly from the north or northeast, but in winter a northwest flow prevails. Patterns of water vapor transfer during wet and dry periods over New Zealand differ more in direction than in magnitude, with the subtropical easterlies extending farther poleward during wet periods, especially in summer.

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D. S. Wratt, R. N. Ridley, M. R. Sinclair, H. Larsen, S. M. Thompson, R. Henderson, G. L. Austin, S. G. Bradley, A. Auer, A. P. Sturman, I. Owens, B. Fitzharris, B. F. Ryan, and J.-F. Gayet

The Southern Alps Experiment is being mounted to study the influence of New Zealand's Southern Alps on local weather and climate. This paper describes these alpine influences and outlines proposed field and modeling experiments. Experiment goals include understanding and quantifying factors that govern the intensity and spatial distribution of heavy rainfall, the west to east distribution of precipitation across the mountains, and the intensity of lee wind storms and warming. Linked research will explore the use of deterministic rainfall models to predict river flows from mountain watersheds.

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