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題 名 | 雨量及風速對空氣品質影響之非線性模式的探討 |
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作 者 | 鄒惠斌; | 書刊名 | 中國統計學報 |
卷 期 | 28:1 1990.03[民79.03] |
頁 次 | 頁1-24 |
分類號 | 445.63 |
關鍵詞 | 空氣品質; 雨量; 非線性; 風速; 模式; |
語 文 | 中文(Chinese) |
中文摘要 | 空氣中懸浮微粒濃度為評估空氣品質好壞的一項重要指標,而風速及雨量為對懸浮微粒濃度變化有影響的主要氣象因子。本文以民國75年9月至76年11月間,行政院環境保護署永和測站之資料做依據,建立懸浮微粒濃度與風速及雨量間,具有時間序列誤呈項之非線性模式口由棋式得去冒風述之影響社雨量車得大口又桿雄所建立之棋式,對息:手做鞋濃度作預測口另外亦討論下雨前後,懸浮微粒濃度之即時變化,以了解下雨對懸浮微粒濃度之短期影響。經過分析後,顯示雨量大到一定程度時方對懸浮微粒濃度之減少有效著效應,且在雨停後大約12小時內減少之效果最為明顯。 |
英文摘要 | The concentration of suspension particles (SP) in the air is an important indicator for evaluating the quality of the air. In this article an analysis concerning the SP concentration is presented. The ultimate purpose is to assess the effects of meteorological factors, such as wind speed and precipitation, on the SP concentration. The analysis is based on the data collected, at the Yungho Taipei monitoring site of the Environmental Protection Administration of the Executive Yuan of the republic of China, covering the period September 1986 through November 1987. The data consists mainly of hourly measurements of those pollutant and meteorological variables. An empirical nonlinear model with correlated errors relating the SP concentration to wind speed and precipitation are built using the daily means of above variables. From the analysis, it was found that wind speed has greater effect on SP concentration than precipitation. The predicted values of SP concentration based on the fitted model agree quite well with the observed values. Moreover, we also discuss the immediate precipitation scavenging effect on the SP concentration right after a raining period. It shows that only when the precipitation is large enough, it will have significant decreasing effect on SP concentration, and the effect is most significant for about 12 hours after a raining period. |
本系統中英文摘要資訊取自各篇刊載內容。