結論與建議

5.1 結論

本研究以臺中市新社花海節為研究對象，以 2013 年及 2014 年兩個年度共計三張 Landsat-8 影 像進行地表溫度反演，結合兩種劈窗演算法，由圖 13 及圖 14 之成果比較顯示：新社區於花海季節期 間地表溫度的上升，使花海範圍溫度與周遭郊區相 比呈熱島現象。

藉由比較氣象站實測溫度與溫度反演成果，可 以看出地表覆蓋物的不同對地表溫度有相當程度 之影響，測站設置於不透水鋪面與裸露地之溫差，

遠高於林地中的測站，可以確認人工不透水鋪面大

量的吸熱，對於地表溫度之影響。

比較新社區與臺中市其他高溫區之平均溫度 差值，可以看出相較於 2014 年 10 月 19 日的非花 海季節，花海舉辦日期的 2013 年 11 月 17 日與 2014 年 12 月 6 日的均溫皆明顯逼近高溫區，顯示臺中 市新社花海節可能造成新社區地表溫度變化。

針對上列敘述，本研究得到下列五點結論：

(1) 新社花海舉辦季節花海範圍整體溫度較高，且 高溫分佈主要集中在若干區域，其高溫區域比 對圖 2 可以得知為人工造景與不透水鋪面等，

可以得證土地覆蓋物的不同會影響地表溫度變 化。

(2) 地表溫度與空氣溫度間必然會因不同環境與其

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1 Master, Department of the Urban Planning and Spatial Information, Received Date: Feb. 22, 2017

Feng Chia University Revised Date: May. 05, 2017

2 Assistant Professor, Department of the Urban Planning and Spatial Information, Accepted Date: Jan. 30, 2018 Feng Chia University

* Corresponding Author, Tel: 886-4-24517250 ext.3355, E-mail: [email protected]

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