AN APPLICATION OF USED PLASTIC BOTTLE FOR RAINFALL MEASUREMENT

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Vanchai Viranant

Abstract

An application of used plastic bottles for rainfall measurement was conducted at Huai Hong Khrai Royal Development Study Center, Doi Saket, Chiang Mai Province. Pairs of 25 modified used plastic bottle funnels 2” (R2) and 3” (R3) diameter raingage were installed around the standard 8” (R8) diameter raingage in four directions (North, East, West, and South) within the radius of 50 cm. The modified raingages in each direction were 50, totally 200 raingages. The difference among rainfall amount of R8, R2, and R3 were obtained by means of ANOVA and formulated in terms of correlation analysis. It was found that the annual rainfall observed among different raingages were nonsignificant. According to the complexity of rainfall characteristics, only annual relationship can be applied and even the coefficient of determination (R2) was as high as 99 %, but incompletely accepted at the level of ± 2SE. The acceptable estimation ranges were 91 - 98 % of the total storm rainfall.

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How to Cite
Viranant, V. (2022). AN APPLICATION OF USED PLASTIC BOTTLE FOR RAINFALL MEASUREMENT. Thai Journal of Forestry, 18(1), 30–38. Retrieved from https://li01.tci-thaijo.org/index.php/tjf/article/view/256026
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Original Articles