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題 名 | 泥岩坡面日射量之推估=Estimation of Solar Radiation on the Mudstone Slopes |
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作 者 | 徐森雄; 黃光賢; 廖士吟; | 書刊名 | 作物、環境與生物資訊 |
卷 期 | 2:3 民94.09 |
頁 次 | 頁211-220 |
分類號 | 432.2216 |
關鍵詞 | 泥岩; 太陽輻射; 地表溫度; 坡向; Mudstone; Solar radiation; Surface temperature; Slope aspect; |
語 文 | 中文(Chinese) |
中文摘要 | 摘要 本研究旨在探討泥岩不同坡向、坡度 間,因太陽日射量吸收上的不同,造成坡面 溫度變化。經選擇一環狀皆為青灰泥岩的天 然地形,利用日射計觀測其坡面所受之日射 量;觀測時間則選定春分、夏至、秋分及冬 至等四節氣,並配合太陽入射角與方位角之 分析。所得之結果摘列如下: (1)太陽入射角 度與各坡向之垂直日射量有正相關係,能藉 此推估泥岩各坡面溫度變化趨勢。(2)東、 西兩向坡於夏至時,坡面一天內所吸收的直 射日射量理論約為南向坡的1.31 ~ 1.48 倍,春秋分時約為0.81~0.92 倍,至冬至時 降至0.53~0.60 倍,平均日照時數均小於南 向坡,逐時的日射強度大於南向坡。 |
英文摘要 | ABSTRACT The purpose of this study was to investigate the differences in slope direction (aspect) and angle for the absorption of solar radiation and thus surface temperature changes of mudstone. A nature ring-like mudstone was selected to observe the receiving solar radiation onto the different slopes of the mudstone using a pyrarometer. The observation time was chosen based on the four solar terms, including the vernal equinox, the summer solstice, the autumnal equinox, and the winter solstice in accordance with the solar incident angles and the solar azimuth. The results obtained was summarized as follows. The results indicated that there existed a positive correlations between the solar incident angles and the amount of the direct radiation on the different slopes. The technique used in this study was proved to be able to estimate the tendency of the temperature changes on the various slopes of the mudstone and to reveal the results of rain erosion and plant growth tendency. In comparisons of the amounts of the direct solar radiation absorbed between the eastward and westward slopes and the southward slope in a day, results indicated that radiation absorbed in the east and west slopes was 1.31 to 1.48 folds higher than that of the south slope at the summer solstice, was 0.81 to 0.92 folds at both the vernal and the autumnal equinox, and was 0.53 to 0.60 folds at the winter solstice. The average sunshine hours received in the east and west slope were smaller than that of the south slope, but the strength of the hourly radiation was greater than that of the south slope. |
本系統中英文摘要資訊取自各篇刊載內容。