Simultaneous mesosphere-thermosphere-ionosphere parameter measurements over Gadanki (13.5°N, 79.2°E): First results

Taori, A.; Dashora, N.; Raghunath, K.; Russell, James M.; Mlynczak, Martin G.

doi:10.1029/2010ja016154

Cited by 21 publications

(18 citation statements)

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“…At a low latitude region, the F layer dynamo is created by various factors such as traveling ionospheric disturbances (TIDs) (Mansilla, 2003). It is also relevant to note that apart from the above, vertical coupling arising because of upward propagation of mesospheric waves (Taori et al, 2011), internal gravity waves, TIDs (Makela et al, 2010) and GPS (Dashora et al, 2012) can also be the sources observed variability in ionospheric and atmospheric parameter disturbances (Leonovich et al, 2011). However, these aspects need further investigations.…”

Section: Discussionmentioning

confidence: 99%

Zonal velocity of the equatorial plasma bubbles over Kolhapur, India

et al. 2013

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Section: Discussionmentioning

confidence: 99%

Zonal velocity of the equatorial plasma bubbles over Kolhapur, India

et al. 2013

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“…Long records of measurement of temperature from ground-based OH emissions (Bittner et al 2002;French and Mulligan 2010;French and Klekociuk 2011) are useful in determining long-term trends (see Sect. 7) There has also been effort to use two or more different types of ground-based instruments at the same site for additional insight into the dynamics (Ejiri et al 2009;Taori et al 2011).…”

Section: Measurements and Their Limitationsmentioning

confidence: 99%

Global Dynamics of the MLT

2012

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The transition between the middle atmosphere and the thermosphere is known as the MLT region (for mesosphere and lower thermosphere). This area has some characteristics that set it apart from other regions of the atmosphere. Most notably, it is the altitude region with the lowest overall temperature and has the unique characteristic that the temperature is much lower in summer than in winter. The summer-to-winter-temperature gradient is the result of adiabatic cooling and warming associated with a vigorous circulation driven primarily by gravity waves. Tides and planetary waves also contribute to the circulation and to the large dynamical variability in the MLT. The past decade has seen much progress in describing and understanding the dynamics of the MLT and the interactions of dynamics with chemistry and radiation. This review describes recent observations and numerical modeling as they relate to understanding the dynamical processes that control the MLT and its variability. Results from the Whole Atmosphere Community Climate Model (WACCM), which is a comprehensive high-top general circulation model with interactive chemistry, are used to illustrate the dynamical processes. Selected observations from the Sounding the Atmosphere with Broadband Emission Radiometry (SABER) instrument are shown for comparison. WACCM simulations of MLT dynamics have some differences with observations. These differences and other questions and discrepancies described in recent papers point to a number of ongoing uncertainties about the MLT dynamical system.

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“…Using the relative photon count measurements, the mesospheric OH and O 2 temperatures are estimated by the method described by Meriweather (1984). Details of MLTP and validation of results are discussed elsewhere (Taori et al, 2011(Taori et al, , 2012a.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2012

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Abstract. The vertical temperature profiles in a typical Rayleigh lidar system depends on the backscatter photon counts and the CIRA-86 model inputs. For the first time, we show that, by making simultaneous measurements of Rayleigh lidar and upper mesospheric O 2 temperatures, the lidar capability can be enhanced to obtain mesospheric temperature profile up to about 95 km altitudes. The obtained results are compared with instantaneous space-borne SABER measurements for a validation.

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Simultaneous mesosphere-thermosphere-ionosphere parameter measurements over Gadanki (13.5°N, 79.2°E): First results

Abstract: [1] We report first simultaneous airglow, lidar, and total electron content measurements in the mesosphere-thermosphere-ionosphere system behavior from Gadanki (13.5°N, 79.2°E).

Cited by 21 publications

References 32 publications

Zonal velocity of the equatorial plasma bubbles over Kolhapur, India

Zonal velocity of the equatorial plasma bubbles over Kolhapur, India

Global Dynamics of the MLT

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

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Simultaneous mesosphere-thermosphere-ionosphere parameter measurements over Gadanki (13.5°N, 79.2°E): First results

Abstract: [1] We report first simultaneous airglow, lidar, and total electron content measurements in the mesosphere-thermosphere-ionosphere system behavior from Gadanki (13.5°N, 79.2°E).

Cited by 21 publications

References 32 publications

Zonal velocity of the equatorial plasma bubbles over Kolhapur, India

Zonal velocity of the equatorial plasma bubbles over Kolhapur, India

Global Dynamics of the MLT

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

Contact Info

Product

Resources

About

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