Our customers are scientists, engineers, hydrologists, research associates, water resource planners and anyone that needs to collect velocity (speed) data in every kind of body of water imaginable. Our instruments use sound waves to tell you how fast water is moving, where it is moving, and even if it is not moving at all. SonTek, advancing environmental science in over 100 countries, manufactures affordable, reliable acoustic Doppler instrumentation for water velocity measurement in oceans, rivers, lakes, canals, harbors, estuaries, and laboratories. > DOWNLOAD LESSON PLAN (CastAway-CTD serial number required)

Conservative and non-conservative elements.

Post-field work analysis of CastAway data and comparisons to global ocean temperatures and salinity data-sets available online.

Hands-on CastAway field activity emphasizing proper scientific data collection procedures.

What is the Law of Constant Proportions and how does it apply to salinity?.The theory behind SALINITY: why is the ocean salty and how is salinity measured?.NOW AVAILABLE: The CastAway-CTD educational curriculum with emphasis on ocean chemistry for use by high school and university level instructors who wish to provide students: Interface for customer-supplied GPS and/or heading sensorĬontact SonTek to learn more about this Hydrographic surveying solution!ĬastAway®-CTD The first handheld castable instrument that provides instantaneous profiles of temperature, salinity, and sound speedĭesigned for coastal profiling, the CastAway-CTD® incorporates a 6-electrode conductivity cell, coupled with a fast response thermistor to provide highly accurate, high resolution CTD measurements to depths of 100 m.Automatic data gridding and interpolation.5-beam depth soundings (50° swath) with HydroSurveyor-M9 and HYPACK® Max.Speed over ground (acoustic bottom tracking).Sound speed integration and interpolation (with CastAway-CTD).

Complete, compact package for measuring bathymetry and correcting sound speed from a vessel of any size. Survey under and around bridges with two available position references – GPS and bottom track (speed over ground) with HydroSurveyor-M9.įlexibility. Bluetooth communication integrated - no cables required! Water sound speed corrections are interpolated in both space and time with the fully integrated CastAway-CTD and HYPACK, deliveringĪgility and accuracy to your surveys. Who says you can't have the best of both worlds? Now, both the CastAway-CTD and SonTek HydroSurveyor-M9 systems are integrated with HYPACK 2016 hydrographic surveying software. Bathymetric Surveying VELOCITY, POSITION, DEPTH, AND CTD MEASUREMENT

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