溪頭地區2016年逆溫現象之季節及日夜特性

Seasonal and Diurnal Variations of Temperature Inversion in the Xitou Area in 2016

賴彥任(Yen-Jen Lai)

《國立臺灣大學生物資源暨農學院實驗林研究報告》 32卷3期 (2018/09) Pp. 169-182

https://doi.org/10.6542/EFNTU.201809_32(3).0002

摘要

本研究利用溪頭高差約1000m，在不同海拔的6個簡易微氣象站，探討氣溫梯度之季節及日夜特性。根據2016年觀測結果顯示，夜間逆溫現象常發生於苗圃測站（海拔1174m）至櫻花平台測站（海拔1281m）之間，冬季發生頻次相對較高。鳳凰林道測站（海拔1703m）至天文台測站（海拔1778m）自0900（CST）起約1小時逆溫現象發生頻率約70%，多發生於4月至9月。溫度環境直減率介於2.86～4.73℃km^(-1)，屬於典型潮濕氣候型態。

關鍵字

逆溫現象 ； 環境直減率 ； 溪頭地區

並列摘要

The studied area in Xitou is within the Beixikeng watershed and the elevation difference is about 1000 m. Due to convenient access, it is very suitable for long-term observation of the vertical profile of the climate. In this study, six micrometeorological stations were set up at different altitudes, and the data was used to investigate seasonal and diurnal variation along the temperature gradient. According to observed data in 2016, the phenomenon of inversion at night often occurred between the Nursery station (1174 m a.s.l.) and the Sakura station (1281 m a.s.l.), and frequency was higher during winter. The frequency of inversion events was about 70% from 0900 (CST) to 1000 (CST) between the Phoenix station (1703 m a.s.l.) and the Observatory station (1778 m a.s.l.), and this phenomenon often occurred from April to September. Monthly environment lapse rate was from 2.86 to 4.73 °C km^(-1), which showed typical characteristics of humid climate in this area.

並列關鍵字

Inversion ； Environment Lapse Rate ； Xitou