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Ship navigation tracklines from a 2018 multibeam survey near Noyes Submarine Canyon, southeast Alaska

Dates

Publication Date
Start Date
2018-04-25
End Date
2018-06-29

Citation

Dartnell, P., Brothers, D.S., and Andrews, B.D., 2022, Multibeam bathymetry and acoustic-backscatter data collected in 2017 and 2018 of Noyes Submarine Canyon and vicinity, southeast Alaska: U.S. Geological Survey data release, https://doi.org/10.5066/P9AU5I03.

Summary

These metadata describe ship navigation tracklines from a 2018 multibeam echosounder survey near Noyo Submarine Canyon and vicinity, southeast Alaska. Data were collected by the National Oceanic and Atmospheric Administration (NOAA) aboard the NOAA survey vessel Fairweather and the data were post-processed by the U.S. Geological Survey (USGS), Pacific Coastal and Marine Science Center (PCMSC) for PCMSC research projects. The tracklines are provided as a GIS shapefile.

Contacts

Attached Files

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NoyesCyn_navigation_QV.jpg
“Trackline map from multibeam surveys in 2017 and 2018”
thumbnail 267.75 KB image/jpeg
NoyesCyn_2018_tracklines_metadata.xml
Original FGDC Metadata

View
17.46 KB application/fgdc+xml
Shapefile: NoyesCyn_2018_tracklines.zip
NoyesCyn_2018_tracklines.cpg 5 Bytes
NoyesCyn_2018_tracklines.dbf 142.96 KB
NoyesCyn_2018_tracklines.prj 155 Bytes
NoyesCyn_2018_tracklines.sbn 3.55 KB
NoyesCyn_2018_tracklines.sbx 404 Bytes
NoyesCyn_2018_tracklines.shp 2.44 MB
NoyesCyn_2018_tracklines.shx 2.82 KB

Purpose

In 2017 and 2018 the NOAA survey vessel Fairweather collected bathymetry and acoustic-backscatter data in and around Noyes Submarine Canyon in southeast Alaska using a Kongsberg EM-710 multibeam echosounder (NOAA survey D00208, https://www.ngdc.noaa.gov/nos/D00001-D02000/D00208.html and NOAA survey D00245, https://www.ngdc.noaa.gov/nos/D00001-D02000/D00245.html). These surveys were conducted to map the offshore expression of the Queen Charlotte-Fairweather fault system that runs for approximately 500 kilometers off the coast of southeast Alaska and British Columbia. These were part of a series of surveys to map the entire offshore component of the fault. The fault system has generated numerous powerful earthquakes in the magnitude 7 and 8 range. This new mapping will help understand the fault's slip rate, earthquake recurrence intervals, and paleoseismic history. The data provided in this data release were processed by PCMSC for these research studies. These data are intended for science researchers, students, policy makers, and the general public. These data can be used with geographic information systems or other software to identify bathymetric features. These data are not intended to be used for navigation.

Additional Information

Shapefile Extension

boundingBox
minY54.346348516700324
minX-134.79489987976112
maxY55.30249384685308
maxX-133.89395546158605
files
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