AIS data

Description

Automatic identification system (AIS) data are used to identify and track vessels for various purposes (primarily navigational safety). These data can be used to study vessel traffic, such as ship routing and speed over ground (SOG). Source data were obtained from the United States Coast Guard Navigation Center (USCG NAVCEN) for the period from June 2008 to December 2015. Derived data resulting from the processing of the source data are described here. This data set presents annual raster data (1 square kilometer grid size) off California from 2008-2015 for cumulative ship traffic density (kilometers/day) and mean SOG (knots; distance-weighted). The universe of data is limited to vessels with a length greater than or equal to 80 meters. The data are analyzed in three groups: freight vessels (container, general cargo, bulk carrier, refrigerated cargo, vehicle carrier, etc.), tanker vessels (crude oil, chemical/products, liquid petroleum gas, etc.) and all vessels (the previously noted vessels, plus passenger vessels and other vessel classes). The data are contained in a file geodatabase format as raster data sets. Metadata for the overall data set are contained at the level of the file geodatabase. The data were generated and used for a research article (Moore et al. 2018): Moore, T.J., Redfern, J.V., Carver, M., Hastings, S., Adams, J.D., Silber, G.K., 2018. Exploring Ship Traffic Variability off California. Ocean and Coastal Management. https://doi.org/10.1016/j.ocecoaman.2018.03.010 See this manuscript for more information on the data description, issues, and processing methods.

Resources

Name Format Description Link
0 Moore, T.J., 2018. Vessel density and vessel speed data off California: 2008-2015, Mendeley Data, v1. DOI: 10.17632/4tgwv45bz8.1 https://dx.doi.org/10.17632/4tgwv45bz8.1
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/swfsc/dmp/pdf/54048.pdf
0 Raster data within a file geodatabase. Downloadable file is compressed file (zip). https://dx.doi.org/10.17632/4tgwv45bz8.1
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/54048
0 Moore, T.J., Redfern, J.V., Carver, M., Hastings, S., Adams, J.D., Silber, G.K., 2018. Exploring ship traffic variability off California. Ocean & Coastal Management 163, 515-527. DOI: 10.1016/j.ocecoaman.2018.03.010 https://doi.org/10.1016/j.ocecoaman.2018.03.010
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
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/54048
0 Moore, T.J., 2018. Vessel density and vessel speed data off California: 2008-2015, Mendeley Data, v1. DOI: 10.17632/4tgwv45bz8.1 https://dx.doi.org/10.17632/4tgwv45bz8.1
0 Moore, T.J., Redfern, J.V., Carver, M., Hastings, S., Adams, J.D., Silber, G.K., 2018. Exploring ship traffic variability off California. Ocean & Coastal Management 163, 515-527. DOI: 10.1016/j.ocecoaman.2018.03.010 https://doi.org/10.1016/j.ocecoaman.2018.03.010
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/swfsc/dmp/pdf/54048.pdf
0 Raster data within a file geodatabase. Downloadable file is compressed file (zip). https://dx.doi.org/10.17632/4tgwv45bz8.1
0 Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
0 Raster data within a file geodatabase. Downloadable file is compressed file (zip). https://dx.doi.org/10.17632/4tgwv45bz8.1
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/54048
0 Moore, T.J., 2018. Vessel density and vessel speed data off California: 2008-2015, Mendeley Data, v1. DOI: 10.17632/4tgwv45bz8.1 https://dx.doi.org/10.17632/4tgwv45bz8.1
0 Moore, T.J., Redfern, J.V., Carver, M., Hastings, S., Adams, J.D., Silber, G.K., 2018. Exploring ship traffic variability off California. Ocean & Coastal Management 163, 515-527. DOI: 10.1016/j.ocecoaman.2018.03.010 https://doi.org/10.1016/j.ocecoaman.2018.03.010
0 Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/swfsc/dmp/pdf/54048.pdf

Tags

  • exclusive economic zone
  • ais
  • ship traffic
  • marine mammal spatial habitat and risk program research portfolio
  • mexico
  • northern baja california
  • doc/noaa/nmfs/swfsc
  • maritime shipping
  • eez
  • national marine fisheries service
  • noaa. u.s. department of commerce
  • california
  • southwest fisheries science center
  • 2008-2015
  • vessel speed
  • automatic identification system
  • annual
  • gis
  • terrestrial ais receivers
  • vessel density

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