Synoptic and climatological controls of particulate matter pollution in a Southern Hemisphere coastal city - Appelhans - 2. International Journal of Climatology. A complex interaction of local meteorology and source characteristics regularly leads to nocturnal smog events during winter in Christchurch, New Zealand. The main focus of this article is on improving understanding of the relationship between atmospheric processes operating at a range of scales that leads to poor air quality in such urban environments. This research therefore aims to provide a quantitative analysis of atmospheric influences on particulate matter pollution in Christchurch across a wide range of spatial and temporal scales, from local to hemispheric and daily to interannual. The probability of exceeding the National Environmental Standard for PM1. The effect of the transition between synoptic types on local air quality is also examined, and the progression of anticyclones across the country is identified to be the dominant synoptic control mechanism. It is shown that variation in latitudinal location of the path of anticyclones over New Zealand influences the predicted exceedance probability. On interdecadal and hemispheric scales, it is found that the particular combination of local and synoptic atmospheric conditions that favours air quality degradation shows a reoccurring pattern of frequency maxima (and minima) with a periodicity of approximately 1. In relation to the identified interdecadal variability of synoptic circulation, a close relationship to Southern Hemisphere pressure anomalies at high latitudes is revealed. The results of this research show that, in addition to daily weather variation, air quality in Christchurch is influenced by longer- term climatic processes that operate on interannual hemispheric scales with the implication that, in general, air pollution potential can also be expected to vary on a periodic interdecadal time scale. Have been large changes in the southern hemisphere winter circulation and reductions in rainfall particularly in the southern. Open Access journal that publishes original research articles as well as review articles in all areas of meteorology. The morphology and meteorology of Southern Hemisphere spring total ozone mini-holes NTRS Full-Text: Click to View Page iii ISSN: 1833-2331 National Library of Australia Cataloguing-in-Publication Frederiksen, Jorgen Segerlund. Decadal changes in southern hemisphere winter cyclogenesis. ISBN 1 921061 12 X (pdf.). Lows (Meteorology) - Australia. Northern Hemisphere as these areas of the world are receiving more direct light from the sun. Next, have the student. The continents in the Southern Hemisphere are receiving more direct sunlight, therefore; the people in the Northern. Meteorology Study Guide Modified True/False Indicate whether the sentence or statement is true or false. Weather radar allows meteorologists to track precipitation but track clouds but not. International Conference on Southern Hemisphere Meteorology and Oceanography Men . Email: [email protected] Networks Men
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