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www.seadiscovery.com Marine Technology Reporter 11lightweight, perfect for a long-range scientific expedition. The LCD dis- play was very useful as it allowed the team to view information from the CTD while in the field, and allowed ?live science? to be relayed back to HQ by phone. It meant there was interest generated during the expedi- tion rather than having to wait till theunit was returned to the UK.? Easily deployed, the Castaway was cast into bore holes created in the Arctic ice, and allowed to free?fall at depths of up to 100 m, its sensorsgathering data, including a tempera-ture system able to respond within 200 milliseconds. The device was especially well designed for surveys in this extreme environment. A rugged, non-corrosive housing, a flow- through design, AA battery power and tool-free operation meant Castaway was perfectly suited for an Arctic survey. ?The Castaway CTD was deployed by the explorer team for the Catlin Arctic Survey 2011 during March to May,? said. Dr. Tim Cullingford, Science Program Manager. ?The con- ditions at this time of year in the Arctic are extreme, with temperatures down to -40DegC. Nevertheless, the Castaway was successfully deployed through holes drilled in the ice to an ocean depth of 100 meters. Its com- pact nature meant that it was easy to handle (e.g. keeping it warm justbefore deployment was simply done by placing inside the explorer?s jack- et). The screen allowed an immediate return of temperature and salinity readings, which were successfully relayed back to London HQ on a reg- ular basis. In the round, the Castaway provided an easy and useful back-up to the data returned by our main CTD."www.ysi.com/castaway MTR#9 (1-17):MTR Layouts 11/29/2011 10:13 AM Page 11