Vertical structure of the midlatitude temperature from stratosphere to mesopause (30–105 km)

She, C. Y.; Yu, Jirong; Krueger, David A.; Roble, R. G.; Keckhut, Philippe; Hauchecorne, Alain; Chanin, Marie-Lise

doi:10.1029/95gl00010

Cited by 43 publications

(37 citation statements)

References 10 publications

(1 reference statement)

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“…It is broad (∼7 km) in the month of April and September. She et al (1993), Senft et al (1994), using Sodium lidar temperature observations reported, that for the seasons where the inversion layer was observed in average temperature data, the layer width of about 5 km is seen and the amplitude of the layer is typically 5 to 10 K. However, the results of the above two authors pertain to mid-latitude, whereas the results of the present study relate to equatorial and the low mid-latitude region (0-30 • N). The characteristics and causes of mesospheric inversion could be different in the two regions.…”

Section: Resultscontrasting

confidence: 55%

“…A number of later studies using different techniques viz. Rayleigh lidar (Hauchecorne et al, 1987;Jenkins et al, 1987;Meriwether et al, 1998;Thomas et al, 2001;Kumar et al, 2001), Sodium temperature lidar (States and Gardner, 1998;Chen et al, 2000;She et al, 1995), satellite photometry (Leblanc and Hauchecorne, Correspondence to: S. Fadnavis (suvarna@tropmet.res.in) 1997; Clancy et al, 1989Clancy et al, , 1994, etc., have repeatedly detected this mesospheric inversion layer phenomenon. Whiteway et al (1995) reported that inversion layers are associated with an overlying, nearly adiabatic laps rate, which is an indication of a well mixed turbulent layer that is confirmed by a one-dimensional numerical model.…”

Section: Introductionmentioning

confidence: 99%

“…Sodium lidar measurements by States and Gardner (1998) during day and night have shown the relationship of MILs with tidal oscillations. She et al (1993) and Bills et al (1993) observed that the temperature of inversions is often included with long period wave activity through the mesopause region. Meriwether et al (1994), using Rayleigh lidar observations, also observed similar wave activity with downward phase propagation for winter events.…”

Section: Introductionmentioning

confidence: 99%

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Mesospheric temperature inversions over the Indian tropical region

Beig

2004

Ann. Geophys.

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Abstract. To study the mesospheric temperature inversion, daily temperature profiles obtained from the Halogen Occultation Experiment (HALOE) aboard the Upper Atmospheric Research Satellite (UARS) during the period 1991-2001 over the Indian tropical region (0-30 • N, 60-100 • E) have been analyzed for the altitude range 34-86 km. The frequency of occurrence of inversion is found to be 67% over this period, which shows a strong semiannual cycle, with a maximum occurring one month after equinoxes (May and November). Amplitude of inversion is found to be as high as 40 K. Variation of monthly mean peak and bottom heights along with amplitude of inversions also show the semiannual cycle. The inversion layer is detected most frequently in the altitude range of 70-85 km, with peak height ranging from 80 to 83 km and that of the bottom height from 72 to 74 km. A comparison of frequency of temperature inversion with that obtained from Rayleigh lidar observations over Gadanki (13.5 • N, 60-100 • E) is found to be reasonable. The seasonal variation of amplitude and frequency of occurrence of temperature inversion indicates a good correlation with seasonal variation of average ozone concentration over the altitude range of the inversion layer.

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Section: Resultscontrasting

confidence: 55%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mesospheric temperature inversions over the Indian tropical region

Beig

2004

Ann. Geophys.

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“…For example, absolute pressure-altitude is registered at around 35 km in the LTE Tk retrieval (i.e., p o = p(z=35 km)) (Remsberg et al, 2004). Many years of lidar measurements at mid-latitudes have been analyzed to deduce the MLT thermal structure (She et al, 1993(She et al, , 1995. The summer (or low) mesopause altitude derived from the lidar analysis is 86 ± 3 km.…”

Section: Temperature Comparisonsmentioning

confidence: 99%

Kinetic temperature and carbon dioxide from broadband infrared limb emission measurements taken from the TIMED/SABER instrument

Mertens¹,

Russell²,

Mlynczak³

et al. 2009

Advances in Space Research

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The Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) experiment is one of four instruments on NASA's Thermosphere-Ionosphere-Energetics and Dynamics (TIMED) satellite. SABER measures broadband infrared limb emission and derives vertical profiles of kinetic temperature (Tk) from the lower stratosphere to approximately 120 km, and vertical profiles of carbon dioxide (CO 2 ) volume mixing ratio (vmr) from approximately 70 km to 120 km. In this paper we report on SABER Tk/CO 2 data in the mesosphere and lower thermosphere (MLT) region from the version 1.06 dataset. The continuous SABER measurements provide an excellent dataset to understand the evolution and mechanisms responsible for the global two-level structure of the mesopause altitude. SABER MLT Tk comparisons with ground-based sodium lidar and rocket falling sphere Tk measurements 2 are generally in good agreement. However, SABER CO 2 data differs significantly from TIME-GCM model simulations. Indirect CO 2 validation through SABER-lidar MLT Tk comparisons and SABER-radiation transfer comparisons of nighttime 4.3 µm limb emission suggest the SABER-derived CO 2 data is a better representation of the true atmospheric MLT CO 2 abundance compared to model simulations of CO 2 vmr.

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“…These waves are generated at tropospheric altitudes because of effects such as the passage of fronts over intense pressure regions. The waves propagate upwards and grow in amplitude, until reaching a critical level near the mesopause, they "break" depositing energy and momentum [14]. The study of such phenomena is one of the scientific goals of the Odin temperature channels.…”

Section: Introductionmentioning

confidence: 99%

Microwave temperature and pressure measurements with the Odin satellite: I. Observational method

Pardo

Ridal²,

Murtagh³

et al. 2002

Can. J. Phys.

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Abstract:The Odin satellite is equipped with millimetre and sub-millimetre receivers for observations of several molecular lines in the middle and upper atmosphere of our planet (∼25-100 km, the particular altitude range depending on the species) for studies in dynamics, chemistry, and energy transfer in these regions. The same receivers are also used to observe molecules in outer space, this being the astrophysical share of the project. Among the atmospheric lines that can be observed, we find two corresponding to molecular oxygen (118.75 GHz and 487.25 GHz). These lines can be used for retrievals of the atmospheric temperature vertical profile. In this paper, we describe the radiative-transfer modeling for O 2 in the middle and upper atmosphere that we will use as a basis for the retrieval algorithms. Two different observation modes have been planned for Odin, the three-channel operational mode and a high-resolution mode. The first one will determine the temperature and pressure on an operational basis using the oxygen line at 118.75 GHz, while the latter can be used for measurements of both O 2 lines, during a small fraction of the total available time for aeronomy, aimed at checking the particular details of the radiative transfer near O 2 lines at very high altitudes (>70 km). The Odin temperature measurements are expected to cover the altitude range ∼30-90 km. PACS Nos.: 07.57Mj, 94.10Dy, 95.75Rs Résumé : Le satellite Odin est équipé de détecteurs millimétriques et sous-millimétriques pour observer plusieurs raies moléculaires dans les parties moyenne et supérieure de l'atmosphère (25-100 km, le domaine en altitude dépendant des molécules étudiées) afin d'étudier la dynamique, la chimie et les transferts d'énergie dans ces régions. Ces mêmes détecteurs peuvent être orientés vers l'espace dans le volet astrophysique de la mission. Parmi

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Vertical structure of the midlatitude temperature from stratosphere to mesopause (30–105 km)

Cited by 43 publications

References 10 publications

Mesospheric temperature inversions over the Indian tropical region

Mesospheric temperature inversions over the Indian tropical region

Kinetic temperature and carbon dioxide from broadband infrared limb emission measurements taken from the TIMED/SABER instrument

Microwave temperature and pressure measurements with the Odin satellite: I. Observational method

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