HF Radar observations of the Dardanelles outflow current in North Eastern Aegean using validated WERA HF radar data

RDF 

 
This item is provided by the institution :
Hellenic Centre for Marine Research (HCMR)
Repository :
Mediterranean Marine Science  | ΕΚΤ eJournals
see the original item page
in the repository's web site and access all digital files if the item*
share



Semantic enrichment/homogenization by EKT
HF Radar observations of the Dardanelles outflow current in North Eastern Aegean using validated WERA HF radar data (EN)

KOKKINI, Z.
KALAMPOKIS, A.
ZERVAKIS, V.
POTIRIS, M.

HCMR (EN)
MarinERA programme, MedEx (EN)
University of the Aegean, Department of Marine Sciences (EN)
NSRF - Research Funding Program: Heracleitus II (EN)

A two-site WERA HF radar station was installed in November 2009 at the eastern coast of Lemnos Island in North Aegean Sea, aiming to monitor the surface inflow of Black Sea waters exiting from the Dardanelles Strait, as well as to constitute a coastal management tool for incidents of oil-pollution or save-and-rescue operations. Strong interference by foreign transmissions is a source of noise deteriorating the quality of the backscattered signal, thus significantly reducing the HF radar’s effective data return rate. In order to ameliorate this problem, further quality-control and data gap interpolating procedures have been developed and applied, to be used in addition to the procedures incorporated and used by the manufacturer’s signal processing software. The second-level processing involves traditional despiking in the temporal domain, preceding Empirical Orthogonal Function analysis. The latter is used not only to filter high-frequency noise but also to fill data gaps in time and space. The data reconstruction procedure has been assessed via comparison of (a) HF radial with CODE-type drifter radial velocities as well as (b) HF-derived virtual drifter tracks with actual drifter tracks. The main circulation features and their variability, as revealed by the reconstructed fields, are presented. (EN)

info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion

Dardanelles outflow (EN)
HF radar (EN)
Aegean surface circulation (EN)
surface drifters (EN)

Ελληνικό Κέντρο Θαλασσίων Ερευνών (ΕΛΚΕΘΕ) (EL)
Hellenic Centre for Marine Research (HCMR) (EN)

Mediterranean Marine Science

2014-12-23


Hellenic Centre for Marine Research (EN)

HF radar validation; surface circulation; drifters (EN)
North Aegean (EN)
2010 - 2011 (EN)

1791-6763
1108-393X
Mediterranean Marine Science; Vol 15, No 4 (special issue); 753-768 (EL)
Mediterranean Marine Science; Vol 15, No 4 (special issue); 753-768 (EN)



*Institutions are responsible for keeping their URLs functional (digital file, item page in repository site)