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U.S. Geological Survey Open-File Report 2012-1099

Summary of Oceanographic and Water-Quality Measurements near the Blackwater National Wildlife Refuge, Maryland, 2011


List of Figures

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thumbnail image of figure 1 and link to larger figure.  Map showing experimental region in the context of the region Figure 1. Map of the region (left) with an inset showing the experimental area with sites on the Blackwater and Transquaking Rivers marked. © 2012 Mapquest, © 2012 Google
thumbnail image of figure 2A and link to larger figure.Map showing locations of all moorings Figure 2A. Image showing the entire experimental area with mooring ID's shown. The upstream sites are indistinguishable at this scale, but enlargements of the upstream regions (2B and 2C) show the detail. Green markers indicate the sites used in the spring deployment, and yellow ones the fall. This figure was created with ESRI ArcGIS using the i-cubed Nationwide Prime database (June 2012).
thumbnail image of figure 2B and link to larger figure. Enlargements showing upstream Blackwater River upstream moorings Figure 2B. Enlargement of the Blackwater River upstream sites with mooring ID's shown. Green markers indicate the sites used in the spring deployment, and yellow ones the fall. This figure was created with ESRI ArcGIS using the i-cubed Nationwide Prime database (June 2012).
thumbnail image of figure 2C and link to larger figure. Enlargements showing Transquaking River upstream moorings Figure 2C. Enlargement of the Transquaking River upstream sites with mooring ID's shown. Green markers indicate the sites used in the spring deployment, and yellow ones the fall. This figure was created with ESRI ArcGIS using the i-cubed Nationwide Prime database (June 2012).
thumbnail image of figure 3 and link to larger figure. A photograph of pole-mounted YSI Figure 3. Pole mounted YSI sonde prior to spring 2011 deployment.
Thumbnail image of figure 4 and link to larger figure.  A photograph showing fouling on YSI sonde. Figure 4. Fouling of a YSI sonde after recovery in spring.

Thumbnail image of figure 5 and link to larger figure. A photograph of Nortek Aquadopp on grid platform Figure 5. Aquadopp velocity profiler as deployed on a grid platform in the fall (moorings 915, 916).
Thumbnail image of figure 6 and link to larger figure 7. Aquadopp and YSI fouling in fall Figure 6. Fouling on a bottom-mounted Aquadopp velocity profiler and a pole-mounted YSI sonde (background))after fall recovery

Thumbnail image of figure 7 and link to larger figure 8. A photograph of ECO turbidity sensor Figure 7. WET Labs ECO BB turbidity sensor after fall recovery. The wiper has kept the optical element clear of fouling.

thumbnail image of figure 8 and link to larger figure. A graph of data from mooring 903. Figure 8. Time series plot of water temperature, salinity, pH, and turbidity, from Blackwater River site at the confluence of tidal creek (mooring 903)

thumbnail image of figure 9 and link to larger figure. A graph of data from mooring 904. Figure 9. Time series plot of water temperature, salinity, pH, and turbidity, from the center of a tidal creek off Blackwater River (mooring 904)
thumbnail image of figure 10 and link to larger figure. A graph of data from mooring 905. Figure 10. Time series plot of water temperature, salinity, pH, and turbidity, from the edge of a tidal creek off Blackwater River (mooring 905)
thumbnail image of figure 11 and link to larger figure. A graph of data from mooring 906. Figure 11. Time series plot of water temperature, salinity, pH, and turbidity, from the Transquaking River site at the confluence of tidal creek (mooring 906)
thumbnail image of figure 12 and link to larger figure. A graph of data from mooring 907. Figure 12. Time series plot of water temperature, salinity, pH, and turbidity, from center of a tidal creek off Transquaking River (mooring 907)
thumbnail image of figure 13 and link to larger figure. A graph of data from mooring 908. Figure 13. Time series plot of water temperature, salinity, pH, and turbidity, from the edge of a tidal creek off Transquaking River (mooring 908)
thumbnail image of figure 14 and link to larger figure. A graph of data from (moorings 915 and 917. Figure 14. Time series plot of pressure, east velocity, north velocity, water temperature, salinity, turbidity and dissolved oxygen from Blackwater River sites (moorings 915, 917). The turbidity data from the ECO BB sensor from upstream is overlaid in red on the turbidity data from the YSI sonde.
Thumbnail image of figure 15 and link to larger figure. A graph of data from moorings 916 and 918. Figure 15. Time series plot of pressure, east velocity, north velocity, water temperature, salinity, turbidity and dissolved oxygen from Transquaking River sites (moorings 916, 918). The turbidity data from the ECO BB from upstream is overlaid in red on the turbidity data from the YSI sonde.
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