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Case Study on Complex Sporadic E Layers Observed by Gps Radio Occultations : Volume 7, Issue 9 (10/09/2014)

By Yue, X.

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Book Id: WPLBN0004000332
Format Type: PDF Article :
File Size: Pages 34
Reproduction Date: 2015

Title: Case Study on Complex Sporadic E Layers Observed by Gps Radio Occultations : Volume 7, Issue 9 (10/09/2014)  
Author: Yue, X.
Volume: Vol. 7, Issue 9
Language: English
Subject: Science, Atmospheric, Measurement
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Yue, X., Xue, X., Zeng, Z., Kuo, Y., & Schreiner, W. S. (2014). Case Study on Complex Sporadic E Layers Observed by Gps Radio Occultations : Volume 7, Issue 9 (10/09/2014). Retrieved from

Description: COSMIC Program Office, University Corporation for Atmospheric Research, Boulder, CO, USA. The occurrence of sporadic E (Es) layer has been a hot scientific topic for a long time. Global Navigation Satellite System (GNSS) based Radio Occultation (RO) has been proven a powerful technique on 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. We first show some examples of multiple Es layers occurred in one RO event. Based on the evaluations between co-located simultaneous RO events and between RO and Lidar observations, it could be concluded that some of these do manifest the multiple Es layered 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 the independent ionosondes observations. These complex Es structures could be understood well by 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 on the Es mechanism. The specification on Es should benefit both the Es based long distance communication and accurate neutral RO retrievals.

Case study on complex sporadic E layers observed by GPS radio occultations

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