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Field survey methods

Detailed Description

Photos of survey equipment used during surveys of the Elwha River delta, Washington, from 2010-2017, showing:

A, personal watercraft,
B, kayak each equipped with global navigation satellite system (GNSS) receivers and single-beam echosounders,
C, GNSS receiver mounted on a backpack,
D, GNSS base station,
E, collection of surface sediment sample with a grab sampler, and
F, sampling sediment from a grab sample. 

Sources/Usage

Public Domain.

USGS data release
Bathymetry, topography, and sediment grain-size data from the Elwha River delta, Washington

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