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| Titel |
Case study on complex sporadic E layers observed by GPS radio occultations |
| VerfasserIn |
X. Yue, W. S. Schreiner, Z. Zeng, Y.-H. Kuo, X. Xue |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1867-1381
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Measurement Techniques ; 8, no. 1 ; Nr. 8, no. 1 (2015-01-12), S.225-236 |
| Datensatznummer |
250116049
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| Publikation (Nr.) |
 copernicus.org/amt-8-225-2015.pdf |
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| Zusammenfassung |
| The occurrence of sporadic E (Es) layers has been a hot scientific topic for
a long time. The GNSS (global navigation satellite system)-based radio
occultation (RO) has proven to be a powerful technique for detecting the
global Es layers. In this paper, we focus on some cases of complex Es layers
based on the RO data from multiple missions processed in UCAR/CDAAC (University Corporation for Atmospheric Research (UCAR) the Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) Data Analysis and Archive Center (CDAAC)). We
first show some examples of multiple Es layers occurred in one RO event.
Based on the evaluations between colocated simultaneous RO events and
between RO and lidar observations, it could be concluded that some of these
do manifest the multiple Es layer structures. We then show a case of the
occurrence of Es in a broad region during a certain time interval. The
result is then validated by independent ionosondes observations. It is possible to explain these
complex Es structures using the popular wind shear
theory. We could map the global Es occurrence routinely in the near future,
given that more RO data will be available. Further statistical studies will
enhance our understanding of the Es mechanism. The understanding of Es
should benefit both Es-based long-distance communication and accurate
neutral RO retrievals. |
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