THANK YOU. The Helzel Messtechnik Team would like to say

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1 The Helzel Messtechnik Team would like to say THANK YOU 2008 to all business partners, friends and colleagues for the faithful co-operation, support and exchange in We would be pleased to continue on this basis in 2008 and we will do our best to be better than yesterday and improve for tomorrow. We wish you a Merry Christmas Time to Relax Reflection on the important things in life and a successful and Happy New Year! Christmas-Season at the City Centre of Hamburg, Germany In this issue: A VHF High Resolution WERA Experiment (report by Yves Barbin, LSEET, France) ACORN The Australian Coastal Ocean Radar Network WERA at CONFERENCES & EVENTS 2008 CMTC 2008 The 9 th Working Conference on Current Measurement Technology March 17 th 19 th, 2008 Charleston, South Carolina, USA WERA as part of ACORN Announcement ROW 2008 Hawaii WERA Operators Seminar 2007 Techno Oceans 2008 April 9 th 11 th, 2008 Kobe, Japan ROW 08 Hawaii Radiowave Oceanography Workshop April 28 th May 2 nd, 2008 Honolulu, Hawaii Page 1 / 5

2 VHF High-Resolution WERA Experiment Report written by Dr. Yves Barbin, Université de Toulon LSEET France Last June 2007, LSEET (CNRS-Université de Toulon et du Var) radar team from Toulon has participated at a large oceanographic experiment coordinated by NATO-CNR- ENEA in La Spezia area (Italy). LSEET radars were to map the sea surface currents with a fine 500 m spatial resolution inside the bay, and a speed resolution of the order of 2cm/s. The available bandwidth extended from 45 MHz to 45.5 MHz. Setting the WERA to the 6 m band The two LSEET WERA radars were tuned to this VHF band by Helzel Messtechnik within 4 weeks, and the radars have been installed by LSEET at the end of May Antennas On both sites, for TX, we used a two element endfire antenna configuration. For RX, we used 8 element linear broad side arrays. The 710A antenna elements that we used for both TX and RX are manufactured by LERC (France). Antenna Receive Array at San Terenzo Basic Performances On one site, we transmit 630mW chirps and got a regular coverage at 12 km. On the other site, radiated power is 15W and coverage extends beyond 30 km. Real time on board radial processing High resolution radial map processing was performed in real time onboard the WERA control PC, but WERA RAW files were stored for further investigations. Cartesian maps Cartesian maps were calculated by the LSEET team once a day at the San Terenzo ENEA lab, resulting in a every 30mn maps atlas. These results were directly used for other oceanographic experiments. Campaign follow on Lagrangian comparisons with drifters data are on the way, and geophysics studies will be made easier by the global quality of the WERA radar data obtained during this one month campaign. Unfiltered cartesian map, on June 18 th, at 15:30 TU (Ferret software rendering) R1 and R2: position of the WERA radars Page 2 / 5

3 ACORN The Australian Coastal Ocean Radar Network As part of the Integrated Marine Observing System (IMOS), Australia establishes it s first national Coastal Ocean Radar Network. Formally called the Australian Coastal Ocean Radar Network (ACORN), it is a system with exciting implications and widespread potential to help many aspects of coastal ocean research and management, from coral reef restoration and tsunami warning to pollution control and search-and-rescue efforts. Over the next four years, coastal radars will be installed at sites across Australia with the $5.46 million in funding allocated through IMOS. In April 2007, the first radar was installed on the beach of Tannum Sands and a second set was installed in May at Lady Elliot Island. After Lady Elliot Island, the next radars slated for installation will be in South Australia followed by set-ups in Western Australia from Perth to Jurien Bay. National IMOS facilities The idea behind ACORN, in a 150 km area, we will have current measurements every 4 km by 4 km along the whole grid, Dr. Mal Heron of James Cook University says. The data, which is sent back to the university s lab every 10 minutes, will allow for highly detailed maps of the currents from the shore out to the edge of the radars range. Eventually, there are plans for a public website where surface current images would be freely available. The maps will potentially benefit many sectors of the community, from marine researchers to fishermen to tourist operators and the general public, who may simply want to know what s happening in local waters. We want to encourage community use, Heron says. We want to be able to demonstrate at the end of IMOS that there is a community following. For a more detailed overview, visit the IMOS website: * Information and pictures kindly provided by the second issue of the IMOS newsletter Marine Matters. Page 3 / 5

4 WERA as part of ACORN In early April 2007, the first WERA radar was installed on the beach of Tannum Sands in the Capricorn Bunker reef group off the coast of central Queensland. Tx array at Tannum Sands User: James Cook University Townsville, Queensland 12 channels 8.3 MHz Range: 150 km Curved Rx array at Tannum Sands WERA Workstation A second set was installed in May a little further south on Lady Elliot Island. Lady Elliot Island Great Barrier Reef Page 4 / 5

5 Radiowave Oceanography Workshop ROW 2008 Aloha! The University of Hawaii HF Radio team is pleased to host the 8th Radio Oceanography Workshop, which will take place in Honolulu from April 28th to May 2nd, The local hosts and organizers will be Yannek Meunier and Pierre Flament, University of Hawaii. The meeting will be held at the Jefferson Hall of the East West Center in Honolulu: The participants have access to the Asia amphitheater, which seats about 64 persons, as well as smaller meeting rooms for break out sessions, committee meetings and vendor-specific training sessions. For additional information, please visit the meeting web site: WERA Operators Seminar 2007 This years WERA Operators Seminar took place at Helzel Messtechnik factory and the WERA site at the North Sea Coast in Büsum from September The seminar concentrated on the understanding of the physics and technology behind WERA and gave an overview on the system hard- and software structure. Hands-on-training at the Helzel Messtechnik factory Our Helzel team enjoyed to impart their WERA knowledge to the 15 participants from all over the world. Besides the theory, a hands-on-training at the factory and the North Sea Coast site, we had an interesting week of international exchange including sightseeing in Hamburg. and at the Control Centre at the WERA North Sea site in Büsum Thanks to all participants for this experience and your positive feedback! The date for the WERA Operators seminar 2008 will be announced in our next newsletter issue. WERA Class at the Helzel Messtechnik conference room and at the harbour of Hamburg city during sight-seeing Page 5 / 5