Effects of Temperature and Humidity on the Absorption Spectrum and Concentration of N2O Using an Open-Path Sensor System
<p>Schematic diagram of <math display="inline"><semantics> <mrow> <msub> <mi mathvariant="normal">N</mi> <mn>2</mn> </msub> <mi mathvariant="normal">O</mi> </mrow> </semantics></math> open optical sensor system.</p> "> Figure 2
<p>The intensity distribution of absorption lines of <math display="inline"><semantics> <mrow> <msub> <mi mathvariant="normal">N</mi> <mn>2</mn> </msub> <mi mathvariant="normal">O</mi> </mrow> </semantics></math>, <math display="inline"><semantics> <mrow> <mi mathvariant="normal">C</mi> <mi mathvariant="normal">O</mi> </mrow> </semantics></math>, <math display="inline"><semantics> <mrow> <mi mathvariant="normal">C</mi> <msub> <mi mathvariant="normal">O</mi> <mn>2</mn> </msub> </mrow> </semantics></math>, and <math display="inline"><semantics> <mrow> <msub> <mi mathvariant="normal">H</mi> <mn>2</mn> </msub> <mi mathvariant="normal">O</mi> </mrow> </semantics></math> in the range of 2000–2250 cm<math display="inline"><semantics> <msup> <mrow/> <mrow> <mo>−</mo> <mn>1</mn> </mrow> </msup> </semantics></math> .</p> "> Figure 3
<p>(<b>a</b>) The relationship between relative spectral line intensity and temperature. (<b>b</b>) The trend of its linear function when different wave numbers changed with temperature. (<b>c</b>) The relationship between the comprehensive broadening type function and wave number under different temperature conditions. (<b>d</b>) The peak value of the Gaussian function under different temperature conditions.</p> "> Figure 4
<p>(<b>a</b>) Real-time atmospheric <math display="inline"><semantics> <mrow> <msub> <mi mathvariant="normal">N</mi> <mn>2</mn> </msub> <mi mathvariant="normal">O</mi> </mrow> </semantics></math> concentration from 7 September 2022 to 8 September 2022. (<b>b</b>) The dependence of <math display="inline"><semantics> <mrow> <msub> <mi mathvariant="normal">N</mi> <mn>2</mn> </msub> <mi mathvariant="normal">O</mi> </mrow> </semantics></math> concentration on temperature.</p> "> Figure 5
<p>(<b>a</b>) 2f signals at different temperature conditions. (<b>b</b>) 1f signals at different temperature conditions.</p> "> Figure 6
<p>(<b>a</b>) Fitting results for temperature and <math display="inline"><semantics> <mrow> <msub> <mi mathvariant="normal">N</mi> <mn>2</mn> </msub> <mi mathvariant="normal">O</mi> </mrow> </semantics></math> concentration. (<b>b</b>) Results of fitting <math display="inline"><semantics> <mrow> <msub> <mi mathvariant="normal">N</mi> <mn>2</mn> </msub> <mi mathvariant="normal">O</mi> </mrow> </semantics></math> concentration to the 2f/1f signal.</p> "> Figure 7
<p>(<b>a</b>) Real-time indoor <math display="inline"><semantics> <mrow> <msub> <mi mathvariant="normal">N</mi> <mn>2</mn> </msub> <mi mathvariant="normal">O</mi> </mrow> </semantics></math> concentration on 6 September 2022. (<b>b</b>) <math display="inline"><semantics> <mrow> <msub> <mi mathvariant="normal">N</mi> <mn>2</mn> </msub> <mi mathvariant="normal">O</mi> </mrow> </semantics></math> concentration versus humidity curve.</p> "> Figure 8
<p>(<b>a</b>) 2f signal under different humidity conditions. (<b>b</b>) 1f signal under different humidity conditions.</p> "> Figure 9
<p>Results of the fit between humidity and <math display="inline"><semantics> <mrow> <msub> <mi mathvariant="normal">N</mi> <mn>2</mn> </msub> <mi mathvariant="normal">O</mi> </mrow> </semantics></math> concentration.</p> ">
Abstract
:1. Introduction
2. Theory
3. Experimental Details
3.1. Sensor Setup
3.2. Selection of Transitions
3.3. Sensor Calibration
4. Results and Discussion
4.1. Effect of Temperature on the Absorption Spectrum and Concentration of
4.2. Effect of Humidity on the Absorption Spectrum and Concentration of
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Chen, J.; Zhao, Y.; Feng, Z.; Zhang, N.; Wang, Y.; Shen, Z.; Kang, Z.; Li, Q. Effects of Temperature and Humidity on the Absorption Spectrum and Concentration of N2O Using an Open-Path Sensor System. Remote Sens. 2023, 15, 5390. https://doi.org/10.3390/rs15225390
Chen J, Zhao Y, Feng Z, Zhang N, Wang Y, Shen Z, Kang Z, Li Q. Effects of Temperature and Humidity on the Absorption Spectrum and Concentration of N2O Using an Open-Path Sensor System. Remote Sensing. 2023; 15(22):5390. https://doi.org/10.3390/rs15225390
Chicago/Turabian StyleChen, Jiahong, Yuefeng Zhao, Zhihao Feng, Nan Zhang, Yanxuan Wang, Zhiqiang Shen, Zongmin Kang, and Qingsong Li. 2023. "Effects of Temperature and Humidity on the Absorption Spectrum and Concentration of N2O Using an Open-Path Sensor System" Remote Sensing 15, no. 22: 5390. https://doi.org/10.3390/rs15225390