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Tred Avon NOAA Vertical Profiler

NOAA ProfilerBeginning in 2014, the National Oceanic and Atmospheric Administration (NOAA) deployed a vertical profiler to monitor water quality conditions in the Tred Avon River, an important oyster restoration area in the Chesapeake Bay. Once an hour, the vertical profiler measures salinity, water temperature, pH, dissolved oxygen, chlorophyll, and turbidity at one meter intervals throughout the water column. The Maryland Department of Natural Resources (DNR) has teamed with NOAA to provide field support for the profiler, monitor operation, download data files, and review the data for quality assurance.

Reports:


Profile Charts:

The charts below display the most recently recorded water quality profile available in the Eyes on the Bay database. Right-click in the chart area to display menu options, and mouseover datapoints to see data details.

Click each parameter to view chart: (Please be patient while chart is generated)

Most Recent Data Record: EST
Note: Each color increment in the legend represents a 2 mg/L change in dissolved oxygen.
For dissolved oxygen, a black contour line follows the hypoxic threshold value of 2 mg/L
Note: Each color increment in the legend represents a 2°C change in water temperature.

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

Note: Each color increment in the legend represents a 0.2 ppt change in salinity.

Note: Each color increment in the legend represents a 0.2 change in pH.

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


Note: Current year data are provisional and have not yet been through our rigorous Quality Assurance procedures.

Data Download:

Use the following query tool to download desired raw data for the Tred Avon NOAA Vertical Profiler. Data will automatically download with columns for any available data-flag codes for each parameter, as well as a 'comments' column, and the sonde identification name used for each deployment period.

Select Parameters and a Date Range,
then "Submit Data Query"
1. Select Parameter(s):
2. Enter Date Range:
Select / De-select All Parameters

Temperature (°C)
Specific conductivity (mS/cm)
Salinity (ppt)
Dissolved Oxygen (mg/L)
Dissolved Oxygen (% Sat)
 pH
Turbidity (NTU)
Fluorescence
Chlorophyll (µg/L)
 Start Date:
   (≥ 06/27/14)


End Date:
   (≤ 11/18/19)




Please be patient while your data are retrieved.

Check your "Downloads" folder for your file, which will be named: "EOTB_NOAAProfilerRawData_'StartDate'to'EndDate'.csv".

Note: Current year data are provisional and have not yet been through our rigorous Quality Assurance procedures.