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| Titel |
A statistical study of sporadic sodium layer observed by Sodium lidar at Hefei (31.8° N, 117.3° E) |
| VerfasserIn |
X.-K. Dou, X.-H. Xue, T.-D. Chen, W.-X. Wan, X.-W. Cheng, T. Li, C. Chen, S. Qiu, Z.-Y. Chen |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 27, no. 6 ; Nr. 27, no. 6 (2009-06-08), S.2247-2257 |
| Datensatznummer |
250016541
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| Publikation (Nr.) |
 copernicus.org/angeo-27-2247-2009.pdf |
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| Zusammenfassung |
| Sodium lidar observations of sporadic sodium layers (SSLs) during
the past 3 years at a mid-latitude location (Hefei, China,
31.8° N, 117.3° E) are reported in this paper. From 64
SSL events detected in about 900 h of observation, an SSL
occurrence rate of 1 event every 14 h at our location was
obtained. This result, combined with previous studies, reveals
that the SSL occurrence can be relatively frequent at some
mid-latitude locations. Statistical analysis of main parameters
for the 64 SSL events was performed. By examining the
corresponding data from an ionosonde, a considerable correlation
was found with a Pearson coefficient of 0.66 between
seasonal variations of SSL and those of sporadic E (Es) during
nighttime, which was in line with the research by Nagasawa and
Abo (1995). From comparison between
observations from the University of Science and Technology of
China (USTC) lidar and from Wuhan Institute of Physics and
Mathematics (WIPM) lidar (Wuhan, China, 31° N,
114° E), the minimum horizontal range for some events was
estimated to be over 500 km. |
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