dc.contributor.author |
Prasanth, PV
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dc.contributor.author |
Sivakumar, V
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dc.contributor.author |
Sridharan, S
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dc.contributor.author |
Kumar, YB
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dc.contributor.author |
Bencherif, H
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dc.contributor.author |
Rao, DN
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dc.date.accessioned |
2009-10-21T13:55:47Z |
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dc.date.available |
2009-10-21T13:55:47Z |
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dc.date.issued |
2009-10 |
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dc.identifier.citation |
Prasanth, PV, Sivakumar, V, Sridharan, S et al. 2009. Lidar observations of sodium layer over low latitude, Gadanki (13.5° N, 79.2° E): seasonal and nocturnal variations. Annales Geophysicae, Vol. 27(10), pp 3811-3823 |
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dc.identifier.issn |
0992-7689 |
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dc.identifier.uri |
http://hdl.handle.net/10204/3673
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dc.description |
Copyright: Author(s) 2009. This work is distributed under the Creative Commons Attribution 3.0 License. |
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dc.description.abstract |
In this paper, researchers present seasonal and nocturnal variations of mesospheric sodium (Na) layer parameters observed over Gadanki (13.5° N, 79.2° E), based on 166 nights during the period from January 2005 to December 2006, for the first time. The total Na content decreases during the evening and reaches a minimum value around midnight and maximum in the early morning. The year-to-year variations
illustrate that Na layers reach the peak value close to 93.5 km for the year 2005 and 93 km for the year 2006 and falls to near zero value around 110 km. Though, seasonal variation of sodium density illustrates maximum values in September, December and March, researchers require a larger data base for September months to conclude the statement. The column abundance shows maximum during autumn equinox and minimum during winter. The obtained seasonal and nocturnal variation of sodium layer parameters are compared with mid-latitude observations and further possible mechanisms are discussed. |
en |
dc.language.iso |
en |
en |
dc.publisher |
Copernicus Publications on behalf of the European Geosciences Union. |
en |
dc.subject |
Atmospheric composition |
en |
dc.subject |
Atmospheric structure |
en |
dc.subject |
Meteorology |
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dc.subject |
Atmospheric dynamics |
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dc.subject |
Meteoric ablation |
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dc.subject |
Sodium layer |
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dc.subject |
Mesospheric sodium |
en |
dc.subject |
Middle atmosphere dynamics |
en |
dc.subject |
Annales Geophysicae |
en |
dc.title |
Lidar observations of sodium layer over low latitude, Gadanki (13.5° N, 79.2° E): seasonal and nocturnal variations |
en |
dc.type |
Article |
en |
dc.identifier.apacitation |
Prasanth, P., Sivakumar, V., Sridharan, S., Kumar, Y., Bencherif, H., & Rao, D. (2009). Lidar observations of sodium layer over low latitude, Gadanki (13.5° N, 79.2° E): seasonal and nocturnal variations. http://hdl.handle.net/10204/3673 |
en_ZA |
dc.identifier.chicagocitation |
Prasanth, PV, V Sivakumar, S Sridharan, YB Kumar, H Bencherif, and DN Rao "Lidar observations of sodium layer over low latitude, Gadanki (13.5° N, 79.2° E): seasonal and nocturnal variations." (2009) http://hdl.handle.net/10204/3673 |
en_ZA |
dc.identifier.vancouvercitation |
Prasanth P, Sivakumar V, Sridharan S, Kumar Y, Bencherif H, Rao D. Lidar observations of sodium layer over low latitude, Gadanki (13.5° N, 79.2° E): seasonal and nocturnal variations. 2009; http://hdl.handle.net/10204/3673. |
en_ZA |
dc.identifier.ris |
TY - Article
AU - Prasanth, PV
AU - Sivakumar, V
AU - Sridharan, S
AU - Kumar, YB
AU - Bencherif, H
AU - Rao, DN
AB - In this paper, researchers present seasonal and nocturnal variations of mesospheric sodium (Na) layer parameters observed over Gadanki (13.5° N, 79.2° E), based on 166 nights during the period from January 2005 to December 2006, for the first time. The total Na content decreases during the evening and reaches a minimum value around midnight and maximum in the early morning. The year-to-year variations
illustrate that Na layers reach the peak value close to 93.5 km for the year 2005 and 93 km for the year 2006 and falls to near zero value around 110 km. Though, seasonal variation of sodium density illustrates maximum values in September, December and March, researchers require a larger data base for September months to conclude the statement. The column abundance shows maximum during autumn equinox and minimum during winter. The obtained seasonal and nocturnal variation of sodium layer parameters are compared with mid-latitude observations and further possible mechanisms are discussed.
DA - 2009-10
DB - ResearchSpace
DP - CSIR
KW - Atmospheric composition
KW - Atmospheric structure
KW - Meteorology
KW - Atmospheric dynamics
KW - Meteoric ablation
KW - Sodium layer
KW - Mesospheric sodium
KW - Middle atmosphere dynamics
KW - Annales Geophysicae
LK - https://researchspace.csir.co.za
PY - 2009
SM - 0992-7689
T1 - Lidar observations of sodium layer over low latitude, Gadanki (13.5° N, 79.2° E): seasonal and nocturnal variations
TI - Lidar observations of sodium layer over low latitude, Gadanki (13.5° N, 79.2° E): seasonal and nocturnal variations
UR - http://hdl.handle.net/10204/3673
ER -
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en_ZA |