Images

Indiana Harbor Canal at East Chicago, IN - gage house

 Inner continental shelf sediment textures within western Massachusetts Bay classified using Barnhardt and others (1998). Bottom photographs A-D show sediment texture in select locations (photograph locations are shown as white dots on the sediment texture map).

Sediment texture and distribution data were mapped qualitatively in Esri ArcGIS using a hierarchical methodology. Backscatter data were the first input, followed by bathymetry, surficial geologic and shallow stratigraphic interpretations, and photograph and sample databases. DEM, digital elevation model.

Bathymetry of of the southern Gulf of Maine with the Massachusetts coastal zone boundary outlined in grey.

Shaded relief backscatter image of a shipwreck near Cuttyhunk, MA

Shaded relief image of Woods Hole, MA

Swath bathymetry and derivative products such as slope, hillshaded relief, and rugosity maps provide information not only on water depth, but also the roughness and smoothness of the sea floor, which correlates with sea floor texture and depositional environment.

Image showing the bathymetry of the southern Gulf of Maine with the Massachusetts coastal zone boundary outlined in grey. The images on the right display how the geophysical and sample data are combined to create an interpretation of seafloor geology

Oblique hillshaded-relief view of the bathymetry surrounding Martha’s Vineyard and the Upper Cape looking south across Buzzards Bay and Vineyard Sound

Using a groundwater observation well, a USGS hydrologist conducts a groundwater elevation survey on a city street on Staten Island, New York.

Early morning fog  and pilings at Oswego River near Phoenix, NY -  index velocity gaging station

American Falls at Niagara Falls, NY

Indian River, NY

Gatehouse for the raw drinking water-intake at Flints (Sandy) Pond in Lincoln, Massachusetts.  Flints pond is Lincoln's primary public water supply.

ADCP measuring river current in NY

USGS scientist in a boat on the Hudson River

Rural land type simulated by the Onondaga Lake basin model

skimmer dragonfly (Odonata: Libellulidae)

As the Little Androscoggin River flows through western Maine it eventually reaches Snow Falls, a 25 ft cascading waterfall in the town of West Paris. 

Beach front houses on Fire Island, NY

Groundwater well overflowing