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The USGS Nansemond Extensometer

By Virginia and West Virginia Water Science Center
Close up photo of the nansemond extensometer, showing the counter-weight, fulcrum arm, and pressure gauge.
Original Thumbnail Medium

Detailed Description

The USGS Nansemond pipe extensometer (59D 39) with a total depth of 1,960 feet.

Sources/Usage

Public Domain.

Related Content

Check out more images of our Nansemond research site below:

USGS Extensometer Drilling in Virginia

Along the Atlantic Coast, a 2000+ ft deep hole has been drilled by the USGS to assess the issues of groundwater pumping, relative sea-level rise, and land subsidence. This video shows the drilling of the first extensometer to measure land subsidence in the North Atlantic Coastal Plain in 30+ years.

By
Water Resources Mission Area, Virginia and West Virginia Water Science Center, Communications and Publishing
Virginia Extensometer Drilling Site
link
Virginia Extensometer Drilling Site
The USGS Nansemond drilling site.
link
USGS Nansemond drilling site.
The USGS Nansemond research station.
link
The USGS Nansemond research station.
The USGS Nansemond pipe extensometer.
link
The USGS Nansemond pipe extensometer.
The USGS Nansemond pipe extensometer with a total depth of 1,960 feet.
link
The USGS Nansemond pipe extensometer.
The USGS Nansemond research station.
link
The USGS Nansemond research station
An analog dial gage (left) and a digital linear potentiometer (right with blue barrel).
link
Analog dial gage (left) and a digital linear potentiometer (right)
Pivot block where the USGS Nansemond extensometer connects to the fulcrum arm.
link
USGS Nansemond extensometer Pivot Block.
Installing the linear potentiometer on the USGS Nansemond extensometer.
link
Installing the linear potentiometer on the USGS Nansemond extensometer

Related Content

  • Multimedia

    Check out more images of our Nansemond research site below:

    USGS Extensometer Drilling in Virginia

    Along the Atlantic Coast, a 2000+ ft deep hole has been drilled by the USGS to assess the issues of groundwater pumping, relative sea-level rise, and land subsidence. This video shows the drilling of the first extensometer to measure land subsidence in the North Atlantic Coastal Plain in 30+ years.

    By
    Water Resources Mission Area, Virginia and West Virginia Water Science Center, Communications and Publishing
    Virginia Extensometer Drilling Site
    link
    Virginia Extensometer Drilling Site
    The USGS Nansemond drilling site.
    link
    USGS Nansemond drilling site.
    The USGS Nansemond research station.
    link
    The USGS Nansemond research station.
    The USGS Nansemond pipe extensometer.
    link
    The USGS Nansemond pipe extensometer.
    The USGS Nansemond pipe extensometer with a total depth of 1,960 feet.
    link
    The USGS Nansemond pipe extensometer.
    The USGS Nansemond research station.
    link
    The USGS Nansemond research station
    An analog dial gage (left) and a digital linear potentiometer (right with blue barrel).
    link
    Analog dial gage (left) and a digital linear potentiometer (right)
    Pivot block where the USGS Nansemond extensometer connects to the fulcrum arm.
    link
    USGS Nansemond extensometer Pivot Block.
    Installing the linear potentiometer on the USGS Nansemond extensometer.
    link
    Installing the linear potentiometer on the USGS Nansemond extensometer