頁籤選單縮合
題 名 | 坡面盤固拉牧草地之近地表氣流分布研究=Study on the Variation of Air Flow above the Pangola Pasture of Slopeland Surface |
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作 者 | 唐琦; 陳誌良; | 書刊名 | 作物、環境與生物資訊 |
卷 期 | 3:2 民95.06 |
頁 次 | 頁185-192 |
分類號 | 434.273 |
關鍵詞 | 盤固拉牧草地; 上坡氣流; 下坡氣流; Pangola pasture; Uphill breeze; Downhill breeze; |
語 文 | 中文(Chinese) |
中文摘要 | 摘要 本研究自2004 年10 月及2005 年1、4、 8 月間於國立屏東科技大學畜牧場內之坡面 盤固拉牧草地,以觀測鐵塔於離地面0.5、2、 5、8、10 m 處進行不同高度之風速及風向測 定,期能利於了解坡面牧草地之近地表空氣 層氣流分布特性。初步研究獲知,坡面盤固 拉牧草地於日出前及日沒後各出現一次平均 風速低於0.5 m s-1 之弱風狀態,顯示夜間之 氣流行進異於晝間者,即晝、夜間分別會出 現上、下坡氣流,而各季中不同高度之風速 與高度間具對數遞增趨勢。 |
英文摘要 | ABSTRACT This study aimed at studying the variation on the nearby airflow above the slopeland pasture. There were four observations on the wind profile in October of 2004, and January, April and August of 2005. Data of wind speed and wind direction were collected at the observation tower, which located in the middle site of Pangola pasture of National Pingtung University of Science and Technology, Taiwan (elevation 90-55 m, area 33.2 ha, 22°38’54” N, 120°36’29” E). Results were summarized as followings. The weakened air turbulence of wind speed was less than 0.5 ms-1, which might appear either before sunrise or after sunset. Therefore, the airflow over the slopeland appeared as uphill breeze during the day and downhill breeze at night. The logarithmic relationship between the height above ground surface and the wind speed was positively correlated. |
本系統中英文摘要資訊取自各篇刊載內容。