First extreme long range results with WERA
Thomas Helzel1, Dana Savidge2,
Travis McKinsec2, Rich Styles3, Hannuman Bull3 and Matthias Kniephoff1
Helzel Messtechnik GmbH, Carl-Benz-Str. 9, 24568 Kaltenkirchen, Germany
Skidaway Institute of Oceanography, 10 Ocean Science Circle, Savannah, GA, 31411
University of South Carolina, 701 Sumter Street, Columbia, South Carolina, 29208
At three sites the WERA system was installed with an operating frequency of 8.35 MHz. Due to the extreme low noise characteristic
of the system and by means of optimised site geometry ranges of up to 260 km for 1st order Bragg lines were achieved.
The temporal resolution to generate a new data set was 8 to 15 minutes with a spatial resolution of 1 to 3 km. An new,
self-adapting centre frequency optimisation technique, developed at the University of Hamburg, was used to reduce the
influence from external interference. First range resolved spectra, radial current and 2D current
maps are presented. Options for similar installations at other places are discussed.