Most Recent Version:

   ViewHydra — v2.93 - 04Feb04

   ViewHydraPro — v2.93 - 04Feb04

ViewHydra is a Windows-based data display and analysis program. It is a post-processing
package designed specifically for use with the data collected by a SonTek/YSI Hydra system.
ViewHydra allows you to quickly and easily look at Hydra data in a variety of ways:
time-series graphs, tabular data, ASCII text files.

Note: The "Pro" version of this software (ViewHydraPro) supports
directional wave measurement studies and advanced data analysis.
Requires the directional waves option.

*Note: A software license is required to run the Pro version of this program.
This license requires that you purchase the directional waves option. If you have
this option, but have not received the required software license, you can
request a ViewHydraPro software license.

Features

• View/Analyze data in several formats: time-series graphs, tabular data,
  ASCII text files. ViewHydraPro adds Histogram, Spectra, and Scatter plots
  for detailed analysis of wave measurement data.
• View/Analyze the following data: velocity, acoustic signal strength,
  velocity standard deviation, signal-to-noise ratio, temperature, pressure,
  heading, pitch, roll, battery voltage, external and analog sensor data,
  and more.
• Create and export ASCII file outputs.
• Observe velocity data in beam, XYZ, or ENU (East-North-Up) coordinates.
• Rotate velocity profiles to a user-selected angle.
• Apply data-smoothing filters of varying magnitudes
  (Adjacent Avg, Gaussian).
• Apply data-editing criteria (Low Amplitude, Low Correlation, Sample Range)
  to discard erroneous data. Note: Data editing does not alter your original
  data file; only the display is affected.
• Remove the mean from displayed data based on a user-selectable range
  of samples.
• Adjust scaling factors and change scaling units.
• Zoom-in on a selected range of bursts or samples.
• Print out graph displays directly to a printer.
• Copy graph displays to the clipboard for pasting in other programs for
  reports or further processing.
• Display configuration information, hardware information, and user
  setup information.

System Requirements

• SonTek/YSI Hydra
• Microsoft Windows Vista/XP/2K
• Pentium processor or above
• 32 MB memory
• 5 MB available disk space
• Monitor capable of 1024x768 resolution or better
• 16-bit color or better recommended