NOC Liverpool report for the UK-IMON Project. April-June 2013 Unit 194 Glider deployment

Abstract

This document summarises an extended deployment of a 200 metre depth rated Slocum Electric glider by the National Oceanography Centre, Liverpool, UK. The glider was deployed on the 6th April and was recovered on the 3rd of June 2013, completing a survey of almost 58 days in length. The glider survey was sponsored by the UK Integrated Marine Observing Network (UK-IMON) initiative. UK-IMON is aimed enhancing the quality of and providing reliable marine data by implementing improvements to measurements used for marine applications, with an underlying theme of environmental monitoring coupled with environmental protection. A particular goal of this project is to exploit new sensing technology to enhance routine measurements that are made in coastal waters. Within this context the deployment of the unit 194 glider was sponsored to provide novel high resolution oceanographic measurements in the Irish Sea along survey transects that included the western Irish Sea, the St George's Channel and the Celtic Deep. The glider provided high resolution physical and biological water quality measurements during the survey. Calibration of the glider scientific sensors formed an important component of the glider operations. Independent reference samples were collected periodically to calibrate the glider sensors. Several transects for the glider also operated close to regularly serviced moorings for measurement comparison and sensor calibration purposes.

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