Technology

TerraSond's knowledge and ability to manage new technologies enables us to play a key role in the surveying and mapping industry.

We own and maintain a large suite of complex software and equipment that is necessary for executing accurate land and hydrographic surveying and mapping. The technology includes specialized tools for obtaining measurements and performing calculations on land and water that are essential for creating, editing and analyzing spatial and attribute data.

We support our staff's ability to manage new technologies by providing additional education and training. We also encourage hands-on experience to increase the conceptual understanding of geographic information systems (GIS) and their practical application for our projects.

Acoustic Doppler Current Profilers

ADCPs use ceramic transducers and work in water, similar to the way loud speakers work in air. The sound pulse they produce travels through the water and the echo of the sound is returned and shifted in frequency due to the Doppler affect.

TerraSond uses ADCPs in rivers and canals for long-term continuous discharge measurements, mounted on boats for instantaneous surveys in the ocean or rivers, and mounted on the seabed for long-term studies. We also use them to locate eddy's that could damage oil drilling activities.

Nortek AWAC The Nortek AWAC is an instrument that gives both a current profiler and a wave directional system in one unit. You can measure the current speed and direction from the bottom to the surface and you can measure long waves, storm waves, short wind waves, or transient waves generated by local ship traffic.

RDI Workhorse Sentinel The lightweight and adaptable Workhorse Sentinel is easily deployed on buoys, boats, or mounted on the seafloor. Real-time data can be transmitted to shore via a cable link or acoustic modem, or data can be stored internally for short or long-term deployments. The Sentinel is easily upgraded to include pressure, botto…

SonTek RiverSurveyor The SonTek RiverSurveyor ADP system combines advanced ADP hardware technology with an easy to use software package that enables you to make underway discharge measurements in a matter of minutes. Additionally, the RiverSurveyor system provides a 3D velocity and full bathymetric profile. There are several different hard…

Drafting Software

TerraSond prepares technical drawings and plans, which are used to build everything from roads and bridges, to port terminals, and to oil and gas pipelines.

With CADD systems, drawings can be stored electronically and viewed, printed, or programmed directly into automated manufacturing systems. CADD also permits the quick preparation of variations of a design.

AutoCAD CIVIL 3D With Civil 3D, we have the flexibility to handle a broad range of project types, including land development, transportation, and environmental.

Carlson Civil Nearly 20 years producing products that work inside AutoCAD from Autodesk have allowed Carlson Software to produce a product line that works flawlessly inside 27 AutoCAD platforms, including AutoCAD, AutoCAD Map, Land Desktop, or Civil 3D, versions 2000-2008.

MicroStation MicroStation is a single, comprehensive platform for design and engineering projects and is the foundation of the V8 Generation of software from Bentley. MicroStation is better suited for 3D modeling, data versatility, workgroup productivity and application development than any other design platform on the market.

QuickSurf QuickSurf is the fastest modeling package available running inside of AutoCAD or as a standalone in Windows, triangulating 50,000 points or more in about 30 seconds on a Pentium 100.

Geographic Information Systems

GIS applications are time and resource saving tools that are used in every aspect of a hydrographic survey.

Remote sensing data is used for advanced field reconnaissance during the planning stages of a project, while electronic navigational charts are analyzed to predict the amount of time necessary to complete a project. Analysts use GIS to provide real-time updates of survey progress during survey operations, as well as identify, locate and attribute hazards to marine navigation.

TerraSond's most complex GIS tools are applied to the development of our final hydrographic products. Our modeling capabilities include three-dimensional fly through scenarios, high resolution digital terrain models, georeferenced video and time sequenced sea bottom analysis using sonar, lidar and seismic datasets. We also provide GIS-based data analysis that includes volume computations, pipeline condition and undersea cable route selection.

ArcView ESRI ArcView is a full-featured geographic information system (GIS) software system that is used for visualizing, managing, creating, and analyzing geographic data.

Blue Marble Geographics Transformer Blue Marble's Geographic Transformer 5 converts raster image files from one projection/datum to another. It can create mosaics from multiple input files, or create output tiles, if desired. The tiling scheme can use either a row/column structure or the same 1.5-minute system that is used by U.S. Geological Survey to …

CARIS GIS Professional CARIS GIS Professional software is an effective spatial analysis tool that permits the creation of digital paper charts to IHO standards as well as the management of information for coastal zone mapping and analysis.

CARIS HOM ENC CARIS HOM ENC software is used for the creation, editing, updating and management of electronic chart production data: CARIS HOM for S-57 production supports ENC specifications and CARIS DOM for VPF production supports DNC and VMap. Both systems support AML product specifications and can be readily tailored to support…

CARIS S57 Composer CARIS S-57 Composer is desktop software used for the production of S-57 Electronic Navigational Charts (ENC), Additional Military Layers (AML) and Inland ENCs (IENC).

dKart Image The typical way of ENC production is the digitizing of the related paper chart. At the first stage a raster image for the paper chart (either black & white or color) is created. The next step is provided by dKart Image software. This step implies elimination of raster image distortions as well as geo-referencing of the…

dKart Inspector dKart Inspector is a powerful tool for ENC quality control. Since the first release in 1996, the program has won a wide international recognition among many Hydrographic Offices and S-57 data producers all over the globe.

Fledermaus Fledermaus Standard is a powerful interactive 3D data visualization system that is used for a variety of applications including environmental impact assessment, mining, geology, and research.

MakaiPlan Data Conversion MakaiPlan is a Geographical Information System (GIS) to support fiber-optic cable laying. This sytem allows users to create submarine cable routes, define cables and in-line bodies, edit routes, define and adjust slack, instantly create a Route Position List (RPL) and Single Line Diagram (SLD). MakaiPlan can also est…

MapInfo Professional MapInfo Professional is the world's leading software for mapping and geographic analysis. MapInfo Professional enables users to perform detailed data analysis to drive insightful decisions leveraging the spatial component.

Maptech Chart Navigator Chart Navigator is the perfect software program for chart plotting. The package comes with complete U.S. coverage of Raster charts, satellite photos, aerial photos, and topos. Also included is the full-featured Offshore Navigator software program, which provides the tools for route and trip planning and navigating in r…

Global Positioning System (GPS)

The Global Positioning System (GPS) is the only fully functional Global Navigation Satellite System (GNSS). Utilizing a constellation of at least 24 Medium Earth Orbit satellites that transmit precise microwave signals. The system enables a GPS receiver to determine its location, speed, direction, and time.

TerraSond's inventory of GPS equipment is capable of Differential GPS (DGPS), Real Time Kinematic (RTK) and static survey methods including dual frequency, survey grade GPS receivers that have the ability to measure with sub-centimeter accuracy. Our Trimble data collectors are capable of interfacing to any of these receivers as well as to conventional Total Stations.

GPS is used on our projects as an economical solution for accurate and repeatable positioning of the various sensor technologies we employ.

CSI MBX-3 DGPS CSI Wireless is an industry leader in the development and manufacture of differential radiobeacon receivers. The MBX -3S differential beacon receiver employs CSI Wireless' proven technology to receive free differential beacon signals available throughout the world.

CSI MBX-4 DGPS The MBX-4 receives, and demodulates RTCM SC-104 differential correction data transmitted by 300 kHz DGPS radiobeacons. The MBX-4 house the Hemisphere GPS dual channel SBX-4 beacon receiver engine that features high-performance beacon search algorithms and a highly sensitive, adaptive architecture.

CSI Vector The CSI Vector GPS system delivers accurate 2D GPS heading data (heading and roll or pitch) with better than 0.1 degree rms accuracy.

Trimble 4000 The 4000MSK DGPS Reference Station receiver combines Trimble's GPS receiver and marine band Minimum Shift Keying (MSK) modulator technologies into one unit. The 4000MSK DGPS Reference Station, combined with the 4000IM MSK Integrity Monitor and the Beacon Control System Software (BCS), provides the most straightforward …

Trimble 5700 The 5700 is a 24-channel dual-frequency RTK GPS receiver for the tracking of GPS satellites. WAAS and EGNOS capability lets you perform real-time differential surveys to GIS grade without a base station.

Trimble 7400 The 7400 is a dedicated RTK GPS receiver system that seamlessly transitions between centimeter level accuracy, based on RTK/OTF carrier phase data, and sub-meter accuracy, based on L1 C/A code data. The 7400 is ideal for optimal marine application solutions.

Trimble DSM212 DGPS The DSM12/212 is used by marine professionals for sub-meter positioning during applications such as precise positioning, dredging, hydrographic surveying, and high speed vessel positioning.

Trimble SPS880 (R8) The Trimble R8 is a 24-channel, dual-frequency GPS receiver, GPS antenna, and data-link radio combined in one compact unit and weighing just 1.3 kg. (2.9 lb).

Hydrographic Data Collection Software

TerraSond has the staff, tools and skills to reduce hydrographic and land survey data.

TerraSond maintains a CADD and cartographic staff that can turn reduced field data into finalized digital and hard copy CADD and GIS deliverables. This is a core capability and is utilized in every project requiring CADD drafting. TerraSond works in both AutoCAD and Microstation/Bentley systems for CADD drafting. Drawings are provided in plan view, plan and profile, cross sections and in 3D views.

TerraSond's staff of surveyors, hydrographers and geophysical and oceanographic employees can turn raw field data into adjusted, corrected and finalized digital and hard copy deliverables and reports.

CARIS Notebook CARIS Notebook software allows our digital field survey data to be quickly transferred to our cartographers. This helps our staff efficiently update digital products.

Chesapeake SonarWIZ Chesapeake SonarWiz MAP produces real-time mosaics and post-processed mosaics, at any resolution and size, quickly and on-the-fly.

CodaOctopus DA100 Discover The Coda DA series is a purpose-built, turn-key hardware solution specifically designed for the most demanding of offshore survey requirements. For digital-only sonar systems and sub-bottom profilers from L3-Klein, EdgeTech and Teledyne Benthos and for all post-processing applications, Coda GeoSurvey can be installed …

EdgeTech Discover DISCOVER is a modular acquisition and processing software package compatible with all of EdgeTech's sonar systems. It serves as the sonar image processing, display, storage and surface control station for the EdgeTech family of Sub-Bottom Profilers, Side Scan Sonars, and Combined Systems.

HYPACK & HYSWEEP HYPACK is one of the most widely used hydrographic surveying packages in the world, with over 3,000 users. It provides the surveyor with all of the tools needed to design their survey, collect data, process it, reduce it, and generate final products. The survey program permits input from up to nine devices, simu…

QPS QINSy QPS QINSy offers a seamless data flow from a large variety of hardware sensors, all the way to a complete chart product. QINSy runs on a standard PC platform under the Windows (2000/XP) operating system. The software is not only independent of sensor manufacturer, but also hardware independent.

Hydrographic Data Processing Software

We own enough hydrographic software to field our systems and manage very large projects with multibeam and side scan sonar.

For projects, we use CARIS, the "Gold" standard in software for processing single beam, multibeam and side scan sonar data. This software is the standard in the industry for rigorous traceability and large dataset management.

In addition to purchased software, we have written extensive programs for managing and manipulating large datasets. That software is proprietary and can be modified easily to meet new and unique data challenges.

Our personnel are trained in the latest hydrographic surveying techniques, software programs and systems.

CARIS Bathy DataBASE CARIS Bathy DataBASE is designed to bring bathymetry source data together with background files and imagery. Bathy DataBASE bridges the gap from survey data processing to product generation by providing a solution focused on the need for bathymetric data management.

CARIS HIPS & SIPS CARIS HIPS and SIPS is a purpose-built processing and production system. CARIS HIPS is used to process large bathymetric datasets, while CARIS SIPS will process side scan sonar imagery and multibeam backscatter data. The CARIS HIPS and SIPS system supports over 40 industry formats and sonar systems, processing data…

CARIS Notebook CARIS Notebook software allows our digital field survey data to be quickly transferred to our cartographers. This helps our staff efficiently update digital products.

Chesapeake SonarWIZ Chesapeake SonarWiz MAP produces real-time mosaics and post-processed mosaics, at any resolution and size, quickly and on-the-fly.

Laser Scanners

Laser scanners are able to collect data on the shape and appearance of objects or elements of the environment. The data that is collected can then be used to construct digital models. This technology can be used to perform highly detailed surveys of railway and road networks, breakwaters and projects requiring shoreline verification.

LiDAR TerraSond along with its team member collects aerial LiDAR data using land, airborne and satellite sensors.

RIEGL 2D Laser Scanner The RIEGL LMS-Q240 2D - laser scanner makes use of the pulsed time-of-flight range measurement principle and beam scanning by means of an opto-mechanical scan mechanism, providing fully linear, unidirectional and parallel scan lines.

Magnetometers

Marine Magnetics Explorer Mini Marine Magnetometer The Marine Magnetics Explorer Mini Marine Magnetomer is light weight, compact, and ideal for shallow water surveys. Explorer's small size and light weight also makes it ideal for towing behind sidescan sonars and deep tow platforms.

RDI RD4000 The Radiodetection RD4000 cable and pipe locater is the most cost-effective method of locating buried services be it gas, electric, telecom, water, sewer or CATV.

Motion Platforms

TerraSond owns enough motion sensors to field a number of multibeam, singlebeam and side scan surveys simultaneously. There are six motion platforms available for projects that include the Seatex Seapath 200, Applanix POS/MV and CODA-Octopus F185. These systems are used for multibeam surveys where heading, heave, pitch and roll are required. The systems provide RTK position and height and are compatible with dual frequency Trimble GPS receivers.

Applanix POS/MV The POS MV maintains positioning and orientation accuracy under the most demanding conditions regardless of vessel dynamics. POS MV provides high update rate (up to 200 Hz) georeferencing and motion compensation for vessel mounted remote sensing systems.

CodaOctopus F180 Analysis of raw motion data with Octopus iHeave allows a more accurate determination of the real heave motion experienced by a vessel, and enables the output of precise heave values for all ocean swells.

Seatex Seapath 200 The Seapath 200 RTK provides high accuracy, real-time position, heading and attitude information by blending the best characteristics of inertial navigation and GPS RTK technologies.

Multibeam Sonar Systems

Multibeam systems produce high-resolution bathymetry data throughout the survey area.

A multibeam sonar system provides fanshaped coverage of the seafloor with the output data in the form of depths. The system will measure and record the time for the acoustic signal to travel from the transmitter (transducer) to the seafloor (or object) and back to the receiver. Search patterns usually are run as a series of parallel lines that ensure overlapping coverage of the multibeam sonar.

TerraSond performs more multibeam surveys than singlebeam when measured by staff hours, revenue, data volume or any other measure. TerraSond owns several multibeam systems and regularly rents additional systems when needed. Trained personnel, software, hardware, custom vessels and multibeam echosounder systems in-house allow the fielding of several multibeam surveys simultaneously. Three or more concurrent multibeam surveys are regularly fielded.

Benthos C3D The C3D system combines high resolution imagery and wide swath bathymetry for bottom mapping, image interpretation, and a 3-dimensional look at the seafloor.

Odom ES3 The ES3-M integrates multibeam sonar with motion sensors resulting in a system with virtually zero fixed offsets (roll and pitch), meaning quicker installations, faster calibrations and reduced setup errors.

Reson SeaBat 7125 The SeaBat 7125 is a single and / or dual frequency (200/400kHz) multibeam echosounder system ideal for a great variety of hydrographic, offshore, military, bathymetric, side scan & snippets applications from a surface vessel, ROV to 6000 meter depth.

Reson SeaBat 8101 The SeaBat 8101 Multibeam Echosounder measures discrete depths, enabling complex underwater features to be mapped with precision. Dense coverage is achieved utilizing up to 4,000 soundings per second for a swath up to 600 meters in width, even as the survey vessel travels at speeds in excess of 12 knots.

Reson SeaBat 8124 Specially designed for harbor and river surveys, the SeaBat 8124 is ideal for condition and pay quantity surveys in support of dredging operations.

Reson SeaBat 8125 The SeaBat 8125 is the first wide-sector, wide-band, focused multibeam sonar ever to be deployed. Utilizing 240 dynamically focused receive beams, the system measures a 120° swath across the seafloor, detects the bottom, and delivers the measured ranges at a depth resolution of 6 mm. The backscatter intensity image is…

Side Scan Sonar Systems

Side scan sonar systems are commonly used by marine researchers to search for and detect objects on the sea floor.

A side scan sonar system requires three components-a towfish that sends and receives acoustic pulses, a transmission cable attached to the towfish that sends data to the ship, and the ship's processing computer. In a side scan the transmitted energy is formed into the shape of a fan that sweeps the sea floor from directly under the towfish to either side, typically to a distance of 100 meters. The computer plots the data points so that scientists can visualize the found object or sea floor feature. While the shape of the sea floor and objects on it can be well-depicted, most side scan systems can not provide any depth information.

TerraSond has considerable experience with side scan sonar technology; owning and operating a series of side scan systems since 1994. The latest systems purchased are two Edgetech 4200S systems. These are digital chirp systems that are software configurable for either high speed (multi-ping)or high definition modes.

Benthos C3D The C3D system combines high resolution imagery and wide swath bathymetry for bottom mapping, image interpretation, and a 3-dimensional look at the seafloor.

EdgeTech 4200-FS The EdgeTech 4200-FS Side Scan System gives us a unique advantage over conventional dual frequency 100/500 kHz side scan systems by combining EdgeTech's Full Spectrum and MultiPulse technologies into one unit.

EdgeTech DF1000 The Edgetech DF1000 sidescan system provides digital, high resolution sonar images of the seafloor. Key performance features include Data Fusion (low and high frequency data blended on record), Saf-T-link recovery system, magnetic heading sensor and acoustic responder. Both low and high frequency data is simultaneous…

Imagenex 872 The Imagenex 872 "YellowFin" is a full-featured dual channel, high resolution, sidescan sonar. Data is displayed in real-time, with or without speed correction, in 9 user selectable colour tables.

Singlebeam Sonar Systems

Singlebeam sonar sensors use sonar technology to collect measurements of the seafloor.

A singlebeam sensor consists of a transducer, mounted on or towed by a boat that feeds into a signal processor and display device. The transducer emits a single sound pulse with a narrow footprint into the water column at specific intervals directly below the transducer. The sound wave bounces off the seafloor and the return is captured by the transducer.

TerraSond prefers to use the Odom Hydrotrac and Odom Echotrac MKII echosounders. We maintain a large inventory with many being built into the hulls of our vessels, or used for spares and chartered vessels. The standard transducer is a 208khz 3º transducer. Other models available are designed specifically for extremely shallow water and the penetration of mud. Also used are echosounders that are "frequency agile," meaning that they can support a wide variety of frequencies, should special needs arise.

Odom 3200DF The Odom 3200DF is a duel frequency survey echosounder that provides high resolution thermal printing, microprocessor and DSP techniques and flat screen graphic displays.

Odom CVM The Odom CVM echosounder comes with dual or single frequency configurations, optional built-in DGPS, bundled notebook PC and choice of data acquisition software.

Odom Hydrotrac The Odom Hydrotrack was specifically designed to work on small survey boats and inflatable water craft in rugged conditions such as surf zones. While being compact and portable, it is fully waterproof during operation.

Odom Mark III The Odom Echotrac MKIII is the only survey echo sounder that has interchangeable, plug and play modules, for a high-resolution thermal paper recorder and a full size color LCD chart with data storage and playback. Both High and Low channels feature auto frequency tuning to precisely match the transceiver to the transdu…

Sound Velocimeters

TerraSond uses sound velocimeters, or SVPs (sound velocity probes/profilers) to measure the speed of sound through a water column. The speed of sound varies, depending on temperature, salinity and depth of the water.

SVPs have one pressure sensor to measure depth, a transducer and a reflector. The sound velocity is calculated using the two-way travel time of an acoustic signal between a transducer and reflector.

On site sound velocity is used to calibrate and process singlbeam and multibeam sonar data. True sound velocity in the water column is determined so that accurate depth measurements can be obtained.

Multibeam and sound velocity data is collected then processed using CARIS's hydrographic processing software. Using CARIS, soundings from the multibeam sonar system are adjusted for sound velocity.

Applied Microsystems Smart Sensor The SV&P Smart Sensor is designed to measure sound velocity and pressure in water and is ideal for integration into existing data collection platforms or OEM equipment.

Applied Microsystems SVPlus The SV Plus sound velocimeter is a lightweight, rugged, intelligent profiler which records high resolution sound velocity profiles of a water column to depths of 5,000 meters.

Lockheed Martin XBT/XSV Profiling System Lockheed Martin expendable profiling systems offer antisubmarine warfare (ASW) specialists and oceanographers a fast, accurate, cost-effective means of collecting environmental data without restricting ship operation.

ODIM Brooke Ocean MVP 200 The Odim Brooke Ocean Moving Vessel Profiler (MVP) greatly enhances the productivity of CTD, Sound Velocity and other specialized profiling by allowing deep water casts to be made from an underway vessel.

Odom Digibar Pro Used primarily to calibrate acoustic systems, DIGIBAR PRO offers a fast and safe method for sound velocity calibration as compared to the traditional "bar-check".

Reson SVP 71 The RESON SVP 71 sound velocity probe developed for fixed-mount installation on surface ships, outboard rigs, submarines, AUVs, ROVs and other self-propelled platforms, uses a direct path echosounding technique that compensates for temperature and pressure with internal sensors.

Sub-bottom Profilers

EdgeTech 3200-XS The EdgeTech 3200-XS Sub-bottom Profiling System is a high-resolution wideband Frequency Modulated (FM) sub-bottom profiler. The system transmits an FM pulse that is linearly swept over a full spectrum frequency. The acoustic return received at the hydrophones is passed through a pulse compression filter, generating …

SyQwest Stratabox The StrataBox is a portable high-resolution marine sediment imaging instrument capable of delivering 6 cm of sediment strata resolution with bottom penetration of up to 40 meters. It is designed exclusively for inshore and coastal geophysical marine surveys up to 150 meters of water depth.

Survey Software

TerraSond's CADD and cartographic staff can turn reduced field data into finalized digital and hard copy CADD and GIS deliverables. This is a core capability and is utilized in every project requiring CADD drafting.

Our survey software gives us the ability to generate reports, manipulate file formats, convert data, perform advanced GIS functions, and plan and execute projects.

We provide drawings in plan view, plan and profile, cross sections and in 3D views.

AutoCAD CIVIL 3D With Civil 3D, we have the flexibility to handle a broad range of project types, including land development, transportation, and environmental.

Trimble Geomatics Office Trimble Geomatics Office software integrates real-time kinematic (RTK), post-processed GPS and conventional survey data. Designed for ease of use, high productivity and quality control, the software imports, checks, and processes field data. The data is stored in Microsoft Access database format for easy customized a…

Trimble Terramodel & TerraVista Trimble Terramodel software is a CAD and Design package capable of reducing, contouring, and drafting surveys. This program reads and writes to AutoCAD files. It is used for the generation and annotation of contour maps, profiles, sections, and volumetric computation. There is no limitation on the number of points o…

Survey Vessels

TerraSond owns and maintains a fleet of aluminum survey vessels that are custom-built for hydrographic surveying and mapping. These vessels range from 21' to 42' and are equipped with singlebeam, multibeam, and side scan sonar systems, navigational and vessel attitude equipment, and data acquisition and processing equipment and software.

TerraSond's vessels support marine projects for the construction and engineering industry, the oil and gas industry, the scientific community, and local, state, and government agencies.

Chartered Vessels We often charter vessels of opportunity for projects that require them depending on project duration, area and location, number of crew, and equipment needed.

Inflatable Boats Our inflatable boats are easily shipped or flown in to remote locations and are outfitted with enough hydrographic survey gear to complete your project.

M/V Bella Marie The M/V Bella Marie is a customized 40' twin inboard diesel powered catamaran. This vessel was purchased in August of 2006 in response to hydrographic survey work requirements in the Gulf of Mexico. It is configured for all types of near-shore hydrographic and geophysical surveys. It is currently deployed for post hur…

M/V Carta The M/V Carta is a 27' foot aluminum work vessel built in 2008 by Workskiff in Burlington, Washington. Terrasond commissioned the vessel to be a versatile, trailerable boat to work the nearshore coastal waters, lakes and rivers of the Northwest. It is based in Washington.

M/V Ducer The M/V Ducer is a custom built 19' outboard powered cabin vessel that is used for conducting hydrographic surveys. It is well suited for performing singlebeam surveys, but since its' been configured for multibeam survey work, it performs these as well. Because of the ease of which this vessel can be trailered, it ha…

M/V Hick Up The M/V Hick Up, a custom built 24' outboard powered cabin vessel that is ideal for single beam and capable of multibeam and sidescan sonar surveys. It is based in Alaska.

M/V Irish Ayes The M/V Irish Ayes is a customized 24' outboard gas powered jet boat capable of single beam, multibeam, side scan and geophysical surveys. It has an extremely shallow draft. It is based in Alaska.

M/V Jella Sea The M/V Jella Sea was built in 2002. It is a 25' aluminum vessel that was custom-built for hydrographic surveying. This vessel is ideal for single beam, multibeam, sidescan and geophysical surveys. It has an extremely shallow draft. It is based in Alaska.

M/V Luna Sea The M/V Luna Sea, a customized 35' twin inboard diesel powered vessel ideal for single beam, multibeam, side scan and geophysical surveys. Our longest vessel, it is a U.S. Coast Guard inspected vessel capable of overnight use. It is based in Washington.

M/V Royal Fish The M/V Royal Fish is a customized 25' inboard gas powered jet boat capable of single beam, multibeam, side scan and geophysical surveys. It has an extremely shallow draft. It is based in Texas.

M/V Sea Ducer The M/V Sea Ducer, a custom built 36' inboard diesel powered jet boat ideal for single beam, multibeam, side scan and geophysical surveys. It has performed many surveys for the USACE and NOAA and is based in Alaska.

Personal Watercraft TerraSond uses personal watercraft vehicles for beach profiling surveys in the Gulf of Mexico. These craft are exceptionally stable and allow our surveyors to accurately map the surf zone using GPS.

R/V Mt. Mitchell The R/V Mt. Mitchell was operated for TerraSond to collect data and conduct nautical charting surveys of Cook Inlet, Alaska. Her sister ships, the Fairweather and Rainier continue operations in the NOAA fleet. These ships have been commended as extremely efficient platforms for conducting coastal hydrographic survey …

Tide Gauges

TerraSond owns water level gauges for datum and uses the extremely accurate and robust Design Analysis Associates (DAA) digital bubbler pressure systems, with Signal Engineering radios for GOES telemetry. In addition, TerraSond owns the ancillary parts required to field the equipment and support the installation of its water level stations.