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Choptank River Vertical Profiler

The vertical profiling system consists of a controller, winch, and data logging and telemetry system mounted on a floating platform. The winch is used to lower the datasonde down into the water column. The Choptank River vertical profiler is currently setup to sample at 0.5, 1, 2, 3, 4 and 5 meters every hour. Data from the individual profiles are interpolated to generate a graphic which depicts water quality conditions over time.

Click each parameter to view chart:


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Note: Each color increment in the legend represents a 5°C change in water temperature.


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Note: Each color increment in the legend represents a 20 µg/L change in chlorophyll.


Please be patient while chart is generated




Please be patient while chart is generated

Note: Each color increment in the legend represents a 0.05 change in pH units.


Please be patient while chart is generated

Note: Each color increment in the legend represents a 20 ntu change in turbidity.


*Data are provisional and have not yet been through our rigorous Quality Assurance procedures.

Chart Tips:

  • To access chart tools:
    • Mouseover the chart to reveal the navigation tools in the top right
  • To pan to earlier dates:
    • Choose the Pan icon icon for pan tool and drag the chart to the desired dates
  • To select a specific date or date series:
    • Choose the zoom icon and select and highlight the desired range.
    • Double-click to zoom out.
  • To reset axes:
    • Choose the home icon
    • Double-click the chart to reset
  • To save chart as image:
    • Choose the camera icon