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基于氧分子O_2(a~1Delta_g)O_(19)P_(18)发射谱线的平流层、中间层大气风场星载探测可行性探讨
Alternative TitleFeasibility of Satellite-borne Wind Observations of Stratosphere and Mesosphere Based on the Emission Line O_(19)P_(18) of O_2(a~1Delta_g)
冯玉涛; 武魁军; 傅頔; 郝雄波; 武俊强; 付建国; 胡炳樑
Department空间环境部
Source Publication光子学报
2019
Volume48Issue:2
ISSN1004-4213
Language中文
Keyword气辉 光谱学 辐射传输 遥感探测 干涉仪
Abstract

提出并分析了以O_2(a~1Delta_g)O_(19)P_(18)(7 772.03 cm~(-1))发射谱线为目标源进行平流层、中间层大气风场星载临边探测的可行性及优势.基于大气模型和辐射传输理论建立O_2(a~1Delta_g,u′=0)O_2(X~3Sigma_g,u=0)带的辐射传输模型,并分析多重散射和非局地热平衡效应影响下的目标源临边光谱辐亮度.表明发射线O_2(a~1Delta_g)O_(19)P_(18)(7 772.03 cm~(-1))自吸收微弱、辐射强、光谱分立度好,能大大降低对测风干涉仪光谱分辨率、滤光系统带宽的要求,进而使载荷更易于实现小型化、高稳定性.以星载测风多普勒差分干涉仪技术方案为例,对以O_2(a~1Delta_g)O_(19)P_(18)(7 772.03 cm~(-1))为探测目标源的视线风速反演精度进行了仿真分析,结果表明40~70 km高度范围内视线风速测量精度优于5 m/s;适当放宽风速反演精度情况下,探测范围能够向40 km以下扩展.研究结果将为平流层、中间层大气风场星载探测提供一条低成本、高精度、自主可行的技术路线.

Other Abstract

The main propose of this paper is to discuss the possibilities and advantages of satellitebornelimb-viewing for wind observations of stratosphere and mesosphere based on the emission line O19 P18 of O_2(a~1Delta_g)O_(19)P_(18)(7 772.03 cm~(-1)).The radiative transfer model of O_2(a~1Delta_g,u′=0)O_2(X~3Sigma_g,u=0)is constructed based on atmosphere model and radiative transfer theory.Furthermore,multiple scattering radiative transfer and nonlocal thermal equilibrium (non-LTE)models are taken into consideration in the simulation of spectrum from limb-viewing.The emission line O_(19)P_(18)(7 772.030 cm~(-1)) with weak self-absorption,bright radiation intensity and large spectral separation range is proved to be suitable for limb-viewing wind detection.Applying the emission line O_2(a~1Delta_g)O_(19)P_(18) for wind observation gets low requirement of spectral resolution and full width of half maxima of filter,making the satellite loading much more possible to be miniaturization and stabilization.The O_2(a~1Delta_g)O_(19)P_(18)(7 772.03 cm~(-1)) based Doppler asymmetric spatial heterodyne interferometer technique scheme is also proposed in this paper.The simulation of limb-viewing wind measurement by proposed scheme indicates that wind measurement precision is better than 5 m/s over an altitude range of 40 to 70 km in general.In the low precision requirement condition,the measurement range could reach lower than 40 km.The research achievement of this paper could provide the low cost,high precision,independent technique approach for stratosphere and mesosphere wind measurement.

Indexed ByEI ; CSCD
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Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/6990
Collection空间环境部
Recommended Citation
GB/T 7714
冯玉涛,武魁军,傅頔,等. 基于氧分子O_2(a~1Delta_g)O_(19)P_(18)发射谱线的平流层、中间层大气风场星载探测可行性探讨[J]. 光子学报,2019,48(2).
APA 冯玉涛.,武魁军.,傅頔.,郝雄波.,武俊强.,...&胡炳樑.(2019).基于氧分子O_2(a~1Delta_g)O_(19)P_(18)发射谱线的平流层、中间层大气风场星载探测可行性探讨.光子学报,48(2).
MLA 冯玉涛,et al."基于氧分子O_2(a~1Delta_g)O_(19)P_(18)发射谱线的平流层、中间层大气风场星载探测可行性探讨".光子学报 48.2(2019).
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