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Mapping Ionospheric Backscatter Measured by the Superdarn Hf Radars – Part 1: a New Empirical Virtual Height Model : Volume 26, Issue 4 (13/05/2008)

By Chisham, G.

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Book Id: WPLBN0003977272
Format Type: PDF Article :
File Size: Pages 19
Reproduction Date: 2015

Title: Mapping Ionospheric Backscatter Measured by the Superdarn Hf Radars – Part 1: a New Empirical Virtual Height Model : Volume 26, Issue 4 (13/05/2008)  
Author: Chisham, G.
Volume: Vol. 26, Issue 4
Language: English
Subject: Science, Annales, Geophysicae
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2008
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Yeoman, T. K., Sofko, G. J., & Chisham, G. (2008). Mapping Ionospheric Backscatter Measured by the Superdarn Hf Radars – Part 1: a New Empirical Virtual Height Model : Volume 26, Issue 4 (13/05/2008). Retrieved from http://www.ebooklibrary.org/


Description
Description: British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge, CB3 0ET, UK. Accurately mapping the location of ionospheric backscatter targets (density irregularities) identified by the Super Dual Auroral Radar Network (SuperDARN) HF radars can be a major problem, particularly at far ranges for which the radio propagation paths are longer and more uncertain. Assessing and increasing the accuracy of the mapping of scattering locations is crucial for the measurement of two-dimensional velocity structures on the small and meso-scale, for which overlapping velocity measurements from two radars need to be combined, and for studies in which SuperDARN data are used in conjunction with measurements from other instruments. The co-ordinates of scattering locations are presently estimated using a combination of the measured range and a model virtual height, assuming a straight line virtual propagation path. By studying elevation angle of arrival information of backscatterred signals from 5 years of data (1997–2001) from the Saskatoon SuperDARN radar we have determined the actual distribution of the backscatter target locations in range-virtual height space. This has allowed the derivation of a new empirical virtual height model that allows for a more accurate mapping of the locations of backscatter targets.

Summary
Mapping ionospheric backscatter measured by the SuperDARN HF radars – Part 1: A new empirical virtual height model

Excerpt
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