CHS Shallow Water MBES Charting Survey, West Coast Vancouver Survey, Various Sites, & Multiple Tide Gauge deployment

IHO S-44 Special Order (<40m) & Order 1a Survey to Canadian Hydrographic Service Specifications covering nine areas on the West Coast of Vancouver Island, British Columbia over two survey seasons (summer 2019 and 2020).  The survey encompassed over 900sqkm, and included 11 tide gauge installations and related benchmark observations in remote areas.  The project utilized the 30' Survey Launch Ganjon, operating out of three remote communities.  Keel Geospatial worked for IIC Technologies providing Hydrographic Surveying and Data Processing of multibeam data.

A Norbit iWMBS with integrated WaveMaster IMU mounted on a Norbit Portus Pole made for a reliable survey platform, with AML SVPs providing sound velocity information multiple times per day. The survey consisted of a shallow and mid-water MBES (2-200m), backscatter, and included wreck and obstruction investigations.  The survey itself was undertaken on the ellipsoid, and for positioning Trimble's PPRTX solution was utilized (Applanix POSPac).  

Multibeam data was field cleaned during acquisition to ensure quality and density by the Lead Surveyor.  The field cleaned and ancillary data was then transferred at regular intervals to our processing offices and our subcontractor where final cleaning and processing was performed (using CARIS HIPS) and 1m, 2m, & 5m surfaces generated (primarily using CARIS HIPS).  Backscatter was mosaiced and rendered for selected areas, and tide gauge reports were submitted for each gauge (all with 4-6 weeks worth of data).   Final deliverables were reviewed by the Data Processing Manager, signed off by the Lead Hydrographer, and submitted for each survey season on completion (Summer/Autumn of 2019 data submitted December 2019, Summer/Autumn data of 2020 submitted December 2020).  For each survey season, a full mobilization and calibration was performed (with resulting Mob/Calibration Report), and a full Report of Survey was submitted along with final deliverables.  All deliverables met the density and uncertainty characteristics of Exclusive Order.