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Related Experiment Video

Updated: May 14, 2026

Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron

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Published on: June 9, 2016

[Spectral calibration for space-borne differential optical absorption spectrometer].

Hai-Jin Zhou¹, Wen-Qing Liu, Fu-Qi Si

¹Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230026, China. hjzhou@aiofm.ac.cn

Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu

|February 8, 2013

Summary

Accurate spectral calibration is crucial for space-borne differential optical absorption spectrometers monitoring atmospheric trace gases. This study presents a novel calibration method and device, ensuring precise remote sensing of global gas distributions.

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Area of Science:

Atmospheric remote sensing
Spectroscopy
Environmental monitoring

Context:

Space-borne differential optical absorption spectrometers (DOAS) are vital for global atmospheric trace gas monitoring.
Accurate quantification of trace gas distribution relies heavily on precise spectral calibration.
Existing calibration methods may not fully address the unique characteristics of DOAS instruments.

Purpose:

To develop and implement a robust spectral calibration method for space-borne DOAS instruments.
To design and construct a specialized calibration device tailored for DOAS.
To validate the calibration method's precision using solar Fraunhofer lines.

Summary:

A novel spectral calibration method and device were developed for space-borne DOAS.
The method utilizes peak searching and regression analysis to establish a spectral calibration equation.
Full-field spectral calibration was achieved and validated using solar Fraunhofer lines, demonstrating high precision.

Impact:

Enhances the accuracy and reliability of atmospheric trace gas measurements from space.
Facilitates improved global distribution and variation monitoring of atmospheric pollutants.
Supports advancements in climate change research and environmental policy development.