AFSC/RACE/GAP/McConnaughey: South Arctic Reconnaissance-2012-SVP

Description

A custom designed Klein 7180 towed sonar was deployed from the NOAA Ship FAIRWEATHER to determine its value of acoustic backscatter as a habitat defining character. A Sonardyne Fusion USBL system was used to estimate underwater positioning of the towfish using an omnidirectional Wideband submini beacon operating in external trigger mode. Navigation data were logged in QINSy and exported into a text file. The towfish positions were then smoothed in Matlab using a custom script that implemented a weighted Hamming filter, using a window of 11 data points. These points represent the smoothed USBL navigation data for the Klein 7180 towfish during the Arctic reconnaissance transit from Dutch Harbor to Kotzebue. These smoothed towfish navigation data, however, will NOT ultimately be reinserted back into the sonar files for mosaicking and analysis. Rather, another navigation smoothing routine will be used for the final product.

Resources

Name Format Description Link
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/32496
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/afsc/dmp/pdf/32496.pdf
0 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
57 32496_GAP_2012_Arctic-2012-SVP.zip https://access.afsc.noaa.gov/data-zips/32496_GAP_2012_Arctic-2012-SVP.zip

Tags

  • navigation
  • alaska fisheries science center
  • side scan sonar
  • noaa
  • afsc/race/gap/mcconnaughey: south arctic reconnaissance-2012
  • u.s. department of commerce
  • national marine fisheries service
  • doc/noaa/nmfs/afsc

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