Dataset description: Eelgrass distributions and bathymetry derived from an acoustic survey of the Nisqually River delta, Washington, 2012

This portion of the USGS data release presents eelgrass distribution and bathymetry data derived from acoustic surveys of the Nisqually River delta, Washington in 2012 (USGS Field Activity Number D-01-12-PS). Eelgrass and bathymetry data were collected from the R/V George Davidson equipped with a single-beam sonar system and global navigation satellite system (GNSS) receiver.

Version	1
Keywords	sea-floor characteristics, aquatic vegetation, single-beam echo sounder, GPS measurement, marine geophysics, bathymetry, bathymetry measurement
Data types	Single Beam
Format	comma-delimited text
Amount	47 MB

Contacts

Contact	Andrew Stevens PCMSC_data@usgs.gov

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Location of materials and files

Public files	https://www.sciencebase.gov/catalog/file/get/5eb9823682ce25b5135d2618?name=nq12_bathy_eelgrass.csv https://www.sciencebase.gov/catalog/item/5eb9823682ce25b5135d2618 https://www.sciencebase.gov/catalog/item/5e97383a82ce172707f2a9b7 https://doi.org/10.5066/P9N9K2I1
Metadata	https://cmgds.marine.usgs.gov/metadata/pcmsc/DataReleases/ScienceBase/DR_P9N9K2I1/nq12_bathy_eelgrass_metadata.xml Outline - Questions and answers - Text - XML

Activities and equipment

Activity	Equipment
D0112PS	single beam sonar 180-280KHz submitted by Eric Grossman sampling at 30Hz