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The Houston Chapter meets on the second Tuesday of every month unless otherwise specified below.

If you are interested in sponsoring an event please contact the Events Chair.    

Upcoming events

    • 10-Mar-2020
    • 6:00 PM - 8:00 PM
    • Craft Republic - 11470 Westheimer Rd, Houston, TX 77077

    The Hydrographic Society of America -  Houston Chapter's March Technical Presentation 

    Speaker: Helen Stewart - Fugro

    Topic:  What the water column is telling us: Hydrographic survey implications of observed vorticity in optical-band satellite data

    Meal & Refreshments: THSOA-HC is looking for a drink sponsor for this event, contact Rachel.Cluthe@seatronics-group.com for information about sponsorships.

    About the Speaker:
    Helen Stewart is a THSOA Certified Hydrographer currently employed in Marine Asset Integrity at Fugro USA in Houston, Texas.  In her broad and diverse career, Helen has worked in 3-D seismic depth processing, ocean mapping, nautical chart hydrography, physical oceanographic and geologic research, AUV and ROV mapping, subsea engineering surveys, and GIS analysis.  She specializes in multibeam sonar projects from concept to completion.  Helen conducts original research on subjects related to hydrographic surveying, again primarily related to multibeam sonars and to shallow-water hydrography.  She has a Master of Science from the University of Cape Town and a Bachelor of Science from the University of Texas at Austin.  Outside of the office, Helen is an artist and published playwright who spends large chunks of her weekends riding her bicycle and playing soccer.


    Optical-band satellite imagery used for Satellite-Derived Bathymetry analysis requires optically clear water with low water column turbidity. As a result, human-controlled or machine learning image analysis processes may reject images with excess turbidity regardless of the cause.

    Images with water column turbidity have value. Under certain conditions, oceanic or near-coastal sub-mesoscale vortices and eddies form and induce turbidity to form in the water column.   The presence, position, and shape of these vortices and eddies observed using satellite imagery may be analyzed and interpreted to determine hydrographically useful information about seabed features and the oceanic environment.

    Here we will discuss different types of vortex and eddy activity visible in data products derived from optical-band satellite imagery from different locations around the world, describe the environmental factors leading to their formation, and describe likely hydrographic and coastal management implications of these phenomena.  Hydrographers and coastal engineers are encouraged to examine water column turbidity and vorticity patterns in optical-band images from different times of year and phases of tide in order to gain better understanding of the local marine environment.

    There is no charge to attend this event however, we request that attendees register for the event in order for our host to get an accurate number for planning purposes.


    TIME: 6:00 PM - 8:00 PM 

    • 14-Apr-2020
    • 6:00 PM - 8:00 PM
    • Craft Republic - 11470 Westheimer Rd, Houston, TX 77077

    The Hydrographic Society of America - Houston Chapter's April  Technical Meeting

    Location: Craft Republic - 11470 Westheimer Rd, Houston, TX 77077

    Speaker: IxBlue -  Euan MacKay 

    Topic: “ DriX ”… a proven solution for offshore operations

    Refreshments Sponsor: Still Open, Please contact Rachel.Cluthe@seatronics-group.com

    Additional Info: 

    DriX has been designed with the absence of Human factor as a fundamental, from launch and recovery to mission’s execution.
    Fast, enduring, safe, high seas going and sea proven, it shows outstanding seakeeping capabilities and takes the industry of surface drones several steps further.

    Designed and built by iXblue' shipyard, following the in-house surveyors’ teams’ requirements, Drix has been refined with iXblue's long-time international major partners in the fields of Geosciences and Offshore Energy.

    Initially targeted at the civilian market, DriX has proved to be a real game changer and already conducted many successful operations ranging from subsea positioning to bathymetry missions. The Defense community identified DriX as a real asset which would bring added value on the battlefield while keeping crews out of harm’s way. Looking forward, iXblue continue to develop and expand the capabilities of USV`s for Offshore projects that require additional capacity.

    About the Speaker : Euan A Mackay  ( Business Development Manager  - Oil & Gas North America ) with iXblue

    Euan has been involved in the oil and gas industry for some 30 years having amassed a wealth of industry experience whilst working in a variety of different technical, operational and managerial positions. 

    After receiving his Higher National Certificate in Electrical & Electronic Engineering started his career as a Workshop Technician with Hydro Marine Systems in 1988.  This role saw him being involved with the repair and maintenance of equipment such as the Hydro Products RCV 225 ROV systems, Wellhead TV camera systems and the Seaeye 600 ROV.

    Moved onto Seaway Technology Ltd where he took up a role as an ROV/Survey Engineer where he worked on many of the now infamous “Scorpio” Work Class ROV Systems.

    Concluded his offshore career when he secured the position of Product Manager with TSS UK LTD which would eventually become Teledyne TSS in 2008. Progressed to Head of Sales with responsibilities for promoting the entire TSS product portfolio across the North American Region.

    Moved to SEATRONICS INC., (An Acteon Company) in 2010 as their Vice President of Sales with responsibility for the US region. Responsible for leading and managing the growth of the sales and rental business development operations in the America’s whilst acting as a key contributor to the development of the ROV product line and all related sensor technologies.  

    Joined iXblue in March 2019 as Business Development Manager - Oil & Gas North America. Responsible for supporting the growth of iXblue Inc., for civilian activities in USA, Canada and Mexico. Specifically focused on Inertial navigation, subsea positioning, underwater imaging, advanced USV and solution oriented technologies.

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