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摘要
It is important to conduct continuous and automatic measurements of nutrients in seawater, such as dissolved inorganic nitrogen and phosphoric and silicic acid ions, for monitoring the environment in coastal areas; however, such continuous measurements are difficult because the data must be obtained by chemical analysis. This paper introduces a simplified measurement instrument that uses absorption rate measurements of filtered seawater in the visible range. We have estimated the uncertainty in the nutrient measurements and verified the accuracy of our instrument. Further, the effectiveness of this method has been demonstrated by field measurements in Osaka Bay.
- 出版日期2011-3
