| 微型近红外光谱仪测量北极积雪覆盖海冰内部太阳辐照度可行性研究 |
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| 引用本文： | 南立文,王晓萍,王杭州,周宏亮,陈鹰.微型近红外光谱仪测量北极积雪覆盖海冰内部太阳辐照度可行性研究[J].海洋学报(英文版),2020,39(9):115-124. |
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| 作者姓名： | 南立文 王晓萍 王杭州 周宏亮 陈鹰 |
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| 作者单位： | 浙江大学海洋学院, 舟山, 316021;浙江和立机电工程有限公司, 台州, 317000 |
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| 基金项目： | The National Natural Science Foundation of China under contract Nos 41976218 and 41606214; the National Key Research and Development Program of China under contract No. 2016YFC1400303; the Fundamental Research Funds for the Central Universities under contract No. 2018FZA4022. |
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| 摘 要： | The extremely low temperature, high humidity and limited power supply pose considerable challenges when using spectrometers within the Arctic sea ice. The feasibility of using a miniature low-power near-infrared spectrometer module to measure solar radiation in Arctic sea ice environments was investigated in this study.Temperature and integration time dependences of the spectrometer module were examined over the entire target operating range of –50℃ to 30℃, well below the specified operating range of this spectrometer. Using these observations, a dark output prediction model was developed to represent dark output as a function of temperature and integration time. Temperature-induced biases in the saturation output and linear operating range of the spectrometer were also determined. Temperature and integration time dependences of the signal output were evaluated. Two signal output correction models were developed and compared, to convert the signal output at any temperature within the operating temperature range and integration time to that measured at the reference temperature and integration time. The overall performance of the spectrometer was evaluated by integrating it into a refined fiber optic spectrometry system and measuring solar irradiance distribution in the ice cover with thickness of 1.85 m in the Arctic during the 9th Chinese National Arctic Research Expedition. The general shape of the measured solar irradiance above the snow surface agreed well with that measured by other commercial oceanographic spectroradiometers. The measured optical properties of the sea ice were generally comparable to those of similar ice measured using other instruments. This approach provides a general framework for assessing the feasibility of using spectrometers for applications in cold environments.
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| 关 键 词： | 近红外光谱仪 低温 北极海冰 |
| 收稿时间： | 2019/8/31 0:00:00 |
Feasibility study of miniature near-infrared spectrometer for the measurement of solar irradiance within Arctic snow-cover sea ice |
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| Nan Liwen,Wang Xiaoping,Wang Hangzhou,Zhou Hongliang,Chen Ying.Feasibility study of miniature near-infrared spectrometer for the measurement of solar irradiance within Arctic snow-cover sea ice[J].Acta Oceanologica Sinica,2020,39(9):115-124. |
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| Authors: | Nan Liwen Wang Xiaoping Wang Hangzhou Zhou Hongliang Chen Ying |
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| Institution: | 1.Ocean College, Zhejiang University, Zhoushan 316021, China2.Zhejiang Heli Electrical Engineering Co., Ltd., Taizhou 317000, China |
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| Abstract: | The extremely low temperature, high humidity and limited power supply pose considerable challenges when using spectrometers within the Arctic sea ice. The feasibility of using a miniature low-power near-infrared spectrometer module to measure solar radiation in Arctic sea ice environments was investigated in this study. Temperature and integration time dependences of the spectrometer module were examined over the entire target operating range of –50°C to 30°C, well below the specified operating range of this spectrometer. Using these observations, a dark output prediction model was developed to represent dark output as a function of temperature and integration time. Temperature-induced biases in the saturation output and linear operating range of the spectrometer were also determined. Temperature and integration time dependences of the signal output were evaluated. Two signal output correction models were developed and compared, to convert the signal output at any temperature within the operating temperature range and integration time to that measured at the reference temperature and integration time. The overall performance of the spectrometer was evaluated by integrating it into a refined fiber optic spectrometry system and measuring solar irradiance distribution in the ice cover with thickness of 1.85 m in the Arctic during the 9th Chinese National Arctic Research Expedition. The general shape of the measured solar irradiance above the snow surface agreed well with that measured by other commercial oceanographic spectroradiometers. The measured optical properties of the sea ice were generally comparable to those of similar ice measured using other instruments. This approach provides a general framework for assessing the feasibility of using spectrometers for applications in cold environments. |
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| Keywords: | near-infrared spectrometer low-temperature Arctic sea ice |
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