First experiment of spectrometric observation of hydroxyl emission and rotational temperature in the mesopause in China

Zhu, Yajun; Xu, Jiyao; Yuan, Wei; Liu, Xiao

doi:10.1007/s11431-012-4824-7

Cited by 8 publications

(7 citation statements)

References 28 publications

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“…In China, the temperature measured by lidar and SATI (spectral airglow temperature imager) has been studied recently and good results have been obtained [35,36]. The first experiment of spectrometric observation of rotational temperature and hydroxyl emission in the mesopause over Mainland China was reported in [37]. Their results revealed that the temperature of mesopause and the airglow emission of OH could be obtained quite well by the retrieval method of the rotational temperature and the new instrument of SMART (SpectroMeter of Atmospheric Radiation).…”

Section: Middle Atmosphere Structurementioning

confidence: 99%

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A brief of recent research progress on ionospheric disturbances

Xiao

Shi

et al. 2013

Sci. China Inf. Sci.

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Section: Middle Atmosphere Structurementioning

confidence: 99%

“…From the year 2011, the project will collect data for more than 11 years. Recently, the related research progress of this project can be seen from [28,33,34,37,50,51].…”

Section: Chinese Meridian Projectmentioning

confidence: 99%

A brief of recent research progress on ionospheric disturbances

Xiao

Shi

et al. 2013

Sci. China Inf. Sci.

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“…Since first confirmed by Meinel (1950), OH airglow emissions have been widely observed using various remote spectroscopic techniques (e.g., Offermann and Gerndt, 1990;von Savigny et al, 2004;Kaufmann et al, 2008;Smith et al, 2010;Zhu et al, 2012). The measurements obtained in such studies have been analyzed for various purposes.…”

Section: Introductionmentioning

confidence: 99%

“…The measurements obtained in such studies have been analyzed for various purposes. For example, rotational temperature can be obtained from OH emissions as a proxy for kinetic temperature under the assumption of rotational local thermodynamic equilibrium (LTE) (Offermann et al, 2010;Zhu et al, 2012;Liu et al, 2015). Gravity waves passing through the OH airglow layer can be monitored to study the dynamics and energy balance in the UMLT (Xu et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

A comparison of OH nightglow volume emission rates as measured by SCIAMACHY and SABER

et al. 2020

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Abstract. Hydroxyl (OH) short-wave infrared emissions arising from OH(4-2, 5-2, 8-5, 9-6) as measured by channel 6 of the SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY) are used to derive concentrations of OH(v=4, 5, 8, and 9) between 80 and 96 km. Retrieved concentrations are used to simulate OH(5-3, 4-2) integrated radiances at 1.6 µm and OH(9-7, 8-6) at 2.0 µm as measured by the Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) instrument, which are not fully covered by the spectral range of SCIAMACHY measurements. On average, SABER “unfiltered” data are on the order of 40 % at 1.6 µm and 20 % at 2.0 µm larger than the simulations using SCIAMACHY data. “Unfiltered” SABER data are a product, which accounts for the shape, width, and transmission of the instrument's broadband filters, which do not cover the full ro-vibrational bands of the corresponding OH transitions. It is found that the discrepancy between SCIAMACHY and SABER data can be reduced by up to 50 %, if the filtering process is carried out manually using published SABER interference filter characteristics and the latest Einstein coefficients from the HITRAN database. Remaining differences are discussed with regard to model parameter uncertainties and radiometric calibration.

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“…local thermodynamic equilibrium (LTE) (Offermann et al, 2010;Zhu et al, 2012;Liu et al, 2015). Gravity waves passing through the OH airglow layer can be captured to study the dynamics and energy balance in the UMLT (Xu et al, 2015).…”

mentioning

confidence: 99%

A comparison of OH nightglow volume emission rates as measured by SCIAMACHY and SABER

Zhu¹,

Kaufmann²,

Chen³

et al. 2019

Preprint

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Abstract. Hydroxyl (OH) short-wave infrared emissions measured by the SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY) were used in this study to simulate OH 1.6 μm and 2.0 μm radiances as measured by the Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) instrument. This paper presents a retrieval model to perform an inversion of OH(v) number densities in order to simulate OH ro-vibrational emission radiances using a non-linear regularized global fit technique. OH 1.6 μm and 2.0 μm radiances as measured by SABER were retrieved from OH limb measurements recorded by SCIAMACHY channel 6 for altitudes in the range of 80–96 km. The main source of uncertainty in the retrieval is related to the Einstein coefficients. Systematic deviations of up to 88 % were found between SABER OH 1.6 μm and 2.0 μm radiance measurements and the corresponding simulations obtained from SCIAMACHY OH data. The radiometric calibration of the instruments could potentially explain the differences between the two measurements.

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First experiment of spectrometric observation of hydroxyl emission and rotational temperature in the mesopause in China

Cited by 8 publications

References 28 publications

A brief of recent research progress on ionospheric disturbances

A brief of recent research progress on ionospheric disturbances

A comparison of OH nightglow volume emission rates as measured by SCIAMACHY and SABER

A comparison of OH nightglow volume emission rates as measured by SCIAMACHY and SABER

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