HF radar based current observation system in the German Bight

Author

Seemann, Jörg ; Ziemer, Friedwart ; Cysewski, Marius ; Flampouris, Stylianos ; Gurgel, Klaus-Werner ; Schlick, Thomas

Author_Institution

Helmholtz Center Geesthacht, Inst. of Coastal Res., Geesthacht, Germany

fYear

2011

fDate

6-9 June 2011

Firstpage

1

Lastpage

7

Abstract

The quality control scheme, which is based on a polynomial fit to the radial components in the time domain, was validated by independent current measurements from a ship-based ADCP. The agreement beween the two sensors are for this data set is 0,13 m/s. This number has to be verified with a larger data set of ADCP measurements. This magnitude is in agreement with the validation of other HF systems (CODAR). Some locations show a strong disagreement between the HF and ADCP measuremente, correlated with an increase of the RMS error of the polynomial fit procedure. This demonstates the necessity of the quality control scheme before using the HF data, e.g. for the assimilation in a numerical model.

Keywords

polynomial approximation; quality control; radar; ADCP measurements; CODAR; German Bight; HF radar based current observation system; RMS error; polynomial fit; quality control; ship-based ADCP; Current measurement; Doppler effect; Oceans; Radar; Sea measurements; Surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS, 2011 IEEE - Spain

Conference_Location

Santander

Print_ISBN

978-1-4577-0086-6

Type

conf

DOI

10.1109/Oceans-Spain.2011.6003628

Filename

6003628