In early 2014, IXSURVEY undertook a Chalky & Preservation Inlets marine survey, the seventh such survey for Land Information New Zealand (LINZ). Both Inlets are located in the pristine Fiordland National Park located in SW New Zealand. This area displays New Zealands untouched natural beauty whilst also being one of the remotest and rugged areas in NZ.
Specifications for the survey required the use of a Multibeam Echosounder (MBES) and Side Scan Sonar (SSS) to achieve LINZ MB-1 striping in depth less than 10m, with full coverage MB-1 in water depths between 10 to 50m and MB-2 in depths greater than 50m. IXSURVEY subsequently employed comprehensive Hydrographic Survey System’s (HSS) installed in two utility vessels, the 23m “TRANQUIL IMAGE” and 15m “MACY GRAY” to undertake the survey which commenced with the mobilisation of both vessels in Tauranga 3-11 January 2014.
In total, over 3,600 linear nautical miles of MBES sounding was achieved between both vessels over an unbroken 48 day period between commencing MBES operations on 21 January 2014 and the completion of fieldwork phase on 9 March 2014.
IXSURVEY utilised its vast experience in the Caris Suite of products including HIPS & SIPS and Caris Bathy Database for the processing and product generation. This solution provides us, with the tools necessary to both process, QC and generate the products in a seamless and efficient manner.
Sounding data and geotiffs were also displayed in a Standard Sheet, or nautical style chart series, using CarisPaper Chart Composer.
IXSURVEY has previously conducted other large nautical charting surveys for LINZ including; Shipping Lane 6 (2013), Whitianga & Bay of Plenty (2013), Chatham Islands (2010/11), Mercury Bay (2010/11), Great Barrier Island (2008/09) and Fiordland National Park - Milford, Doubtful & Thompson and Dusky Sounds (2008).