民國七十五年一月－六月台灣地區重要天氣概述

On the Predominant Weather Events in Taiwan from January to June of 1986

劉復誠(Henry Fu-Cheng Liu)

《大氣科學》 14卷1期 (1986/09) Pp. 103-118

摘要

本文撰述之主要目的為闡釋台灣地區在1986年（75年）1～6月間，所發生之顯著天氣系統或現象。經過一般分析，在上半年間計有①31次鋒面過境或影響台灣地區天氣②7次中度寒潮侵台③3次華南雨區東移或高空短槽導致降雨及④6個颱風出現在西太平洋上。此外，經過統計結果顯示：在今（75）年1－6月間，各地月雨量除了中部偏少外，其餘各區均偏高。而就月平均氣溫而言，除了北部偏高（+0.2°C）外，其他地區均值低（-0.2～-0.7°C）。

並列摘要

The goal of this paper is to review the predominant weather events in Taiwan area from January to June of 1986. The data selected were based on the CWB's weather stations. According to general analyses, the conclusions can be listed as follows:(1) There were 31 fronts which passed through Taiwan or went closely. 7 moderate cold waves, 3 Hwanan Raining Zones (or upper air through) and 6 typhoons discovered in western North Pacific ocean.(2) Under the influence of continuous moderate cold waves during late February-March 3, there were 14 weather stat ions of Central Weather Bureau which measured the absolute minimum temperature of March, and also a lot of serious damages befallen fishing business in the central and south districts of Taiwan.(3) Mei-Yu rain period from May 20 to June 11 lasted for 23 days which were less than climatological average (34 days) by 11 days. Furthermore, the heavy rainfall did many damages to the agriculture railroad and highway.(4) As far as the monthly average rainfall anomalies are connected, there are less in the central Taiwan, but it is positive anomaly in northern, northeastern, southern and eastern Taiwan.(5) On the average temperature anomaly, it is all negative (-0.2~0.7°C) in the central, southern and eastern Taiwan only but the northern Taiwan is positive (+0.2°C).