A new method to derive middle atmospheric temperature profiles using a combination of Rayleigh lidar and O&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; airglow temperatures measurements

Taori, A.; Jayaraman, A.; Raghunath, K.; Kamalakar, V.

doi:10.5194/angeo-30-27-2012

Cited by 10 publications

(7 citation statements)

References 15 publications

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“…We have found the same systematic 5-15 K warm bias in the lidar-satellite comparisons above 70 km found in studies like (García-Comas et al, 2014), (Taori et al, 2011), (Taori et al, 2012), (Taori et al, 2012), (Dou et al, 2009), (Remsberg et al, 2008), (Yue et al, 2014), and (Sivakumar et al, 2011). We have attempted to carefully account for the the background-induced warm bias in 315 high altitude Rayleigh lidar temperatures.…”

Section: )supporting

confidence: 73%

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Lidar temperature series in the middle atmosphere as a reference data set. Part B: Assessment of temperature observations from MLS/Aura and SABER/TIMED satellites

Wing¹,

Hauchecorne²,

Keckhut³

et al. 2018

Preprint

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Section: )supporting

confidence: 73%

“…(Taori et al, 2011(Taori et al, , 2012Taori et al, 2012) comprise an excellence series of publications using multiple instruments to measure the atmospheric temperature from 40 km to 100 km. These works found good agreement between the lidar and SABER up to 65 km and significant initialization errors in the lidar of up to 25 K near 90 km.…”

mentioning

confidence: 99%

Lidar temperature series in the middle atmosphere as a reference data set. Part B: Assessment of temperature observations from MLS/Aura and SABER/TIMED satellites

Wing¹,

Hauchecorne²,

Keckhut³

et al. 2018

Preprint

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“…c. Satellites, like MLS and SABER, provide globally distributed temperature measurements at several pressure levels throughout the vertical atmospheric column (Waters et al, 2006;Mertens et al, 2001). Satellite-based measurements provide a very good global view of the Earth's middle atmosphere, but can suffer from calibration errors, temporal coverage gaps, and problems with vertical resolution.…”

Section: Alternative Measurement Techniquesmentioning

confidence: 99%

Lidar temperature series in the middle atmosphere as a reference data set – Part 2: Assessment of temperature observations from MLS/Aura and SABER/TIMED satellites

et al. 2018

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Abstract. We have compared 2433 nights of Rayleigh lidar temperatures measured at L'Observatoire de Haute Provence (OHP) with co-located temperature measurements from the Microwave Limb Sounder (MLS) and the Sounding of the Atmosphere by Broadband Emission Radiometry instrument (SABER). The comparisons were conducted using data from January 2002 to March 2018 in the geographic region around the observatory (43.93∘ N, 5.71∘ E). We have found systematic differences between the temperatures measured from the ground-based lidar and those measured from the satellites, which suggest non-linear distortions in the satellite altitude retrievals. We see a winter stratopause cold bias in the satellite measurements with respect to the lidar (−6 K for SABER and −17 K for MLS), a summer mesospheric warm bias (6 K near 60 km), and a vertically structured bias for MLS (−4 to 4 K). We have corrected the stratopause height of the satellite measurements using the lidar temperatures and have seen an improvement in the comparison. The winter relative cold bias between the lidar and SABER has been reduced to 1 K in both the stratosphere and mesosphere and the summer mesospheric warm bias is reduced to 2 K. Stratopause altitude corrections have reduced the relative cold bias between the lidar and MLS by 4 K in the early autumn and late spring but were unable to address the apparent vertical oscillations in the MLS temperature profiles.

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“…The thermal structure of the mesosphere is important for short-period gravity wave features. To obtain background temperature profile in upper mesospheric altitudes, we have used the MLTP and Rayleigh lidar data available on 16 March 2012; from that, we retrieved the temperature from 14:04 UT to 19:38 UT with 30 min intervals (as described by Taori et al [2012]), shown in Figure 5. Together with the improved Rayleigh lidar temperature, we have used the spaceborne SABER temperature data for a wide grid encompassing 3°N to 23°N latitudes and 60°E to 100°E longitudes.…”

Section: Mesospheric Temperaturesmentioning

confidence: 99%

Multi‐instrument investigation of a mesospheric gravity wave event absorbed into background

et al. 2015

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We investigate a gravity wave event exhibiting dissipation noted in the mesospheric O( 1 S) airglow emission image measurements, over Gadanki (13.5°N, 79.2°E), on 16 March 2012 (during 16:20-16:45 UT). These gravity waves were found to propagate from south-west to north-east directions at~65°azimuth in OH as well as in O( 1 S) images. These waves had horizontal wavelength~21.5 km with apparent horizontal phase speed~49 m s À1 and period~7.3 min. These waves were noted to fizzle out in turbulent patches within 15 min.To identify the causative mechanism of this event, we analyze the background wind and temperature data using the medium-frequency radar wind from Tirunelveli (8.7°N, 77.8°E), ground-based Rayleigh lidar temperature data with improved capability over Gadanki, and spaceborne Sounding of the Atmosphere using Broadband Emission Radiometry/Thermosphere Ionosphere Mesosphere Energetics and Dynamics temperature data (20:30 UT) for a latitude-longitude grid of 3-23°N, 60-100°E. Our analysis reveals that convective instability was responsible for the observed event.

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A new method to derive middle atmospheric temperature profiles using a combination of Rayleigh lidar and O<sub>2</sub> airglow temperatures measurements

Cited by 10 publications

References 15 publications

Lidar temperature series in the middle atmosphere as a reference data set. Part B: Assessment of temperature observations from MLS/Aura and SABER/TIMED satellites

Lidar temperature series in the middle atmosphere as a reference data set. Part B: Assessment of temperature observations from MLS/Aura and SABER/TIMED satellites

Lidar temperature series in the middle atmosphere as a reference data set – Part 2: Assessment of temperature observations from MLS/Aura and SABER/TIMED satellites

Multi‐instrument investigation of a mesospheric gravity wave event absorbed into background

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