HR: 1340h
AN: IN43A-0906    [Abstracts]
TI: Google Earth Visualizations of the Marine Automatic Identification System (AIS): Monitoring Ship Traffic in National Marine Sanctuaries
AU: * Schwehr, K
EM: kurt@ccom.unh.edu
AF: Center for Coastal and Ocean Mapping, Univ. of New Hampshire 24 Colovos Rd, Durham, NH 03824,
AU: Hatch, L
EM: Leila.Hatch@noaa.gov
AF: Stellwagen Bank National Marine Sanctuary, U.S. National Oceanic and Atmospheric Administration 175 Edward Foster Road, Scituate, MA 02066,
AU: Thompson, M
EM: Michael.A.Thompson@noaa.gov
AF: Stellwagen Bank National Marine Sanctuary, U.S. National Oceanic and Atmospheric Administration 175 Edward Foster Road, Scituate, MA 02066,
AU: Wiley, D
EM: David.Wiley@noaa.gov
AF: Stellwagen Bank National Marine Sanctuary, U.S. National Oceanic and Atmospheric Administration 175 Edward Foster Road, Scituate, MA 02066,
AB: The Automatic Identification System (AIS) is a new technology that provides ship position reports with location, time, and identity information without human intervention from ships carrying the transponders to any receiver listening to the broadcasts. In collaboration with the USCG's Research and Development Center, NOAA's Stellwagen Bank National Marine Sanctuary (SBNMS) has installed 3 AIS receivers around Massachusetts Bay to monitor ship traffic transiting the sanctuary and surrounding waters. The SBNMS and the USCG also worked together propose the shifting the shipping lanes (termed the traffic separation scheme; TSS) that transit the sanctuary slightly to the north to reduce the probability of ship strikes of whales that frequent the sanctuary. Following approval by the United Nation's International Maritime Organization, AIS provided a means for NOAA to assess changes in the distribution of shipping traffic caused by formal change in the TSS effective July 1, 2007. However, there was no easy way to visualize this type of time series data. We have created a software package called noaadata-py to process the AIS ship reports and produce KML files for viewing in Google Earth. Ship tracks can be shown changing over time to allow the viewer to feel the motion of traffic through the sanctuary. The ship tracks can also be gridded to create ship traffic density reports for specified periods of time. The density is displayed as map draped on the sea surface or as vertical histogram columns. Additional visualizations such as bathymetry images, S57 nautical charts, and USCG Marine Information for Safety and Law Enforcement (MISLE) can be combined with the ship traffic visualizations to give a more complete picture of the maritime environment. AIS traffic analyses have the potential to give managers throughout NOAA's National Marine Sanctuaries an improved ability to assess the impacts of ship traffic on the marine resources they seek to protect. Viewing ship traffic data through Google Earth provides ease and efficiency for people not trained in GIS data processing.
DE: 4251 Marine pollution (0345, 0478)
DE: 4294 Instruments and techniques
DE: 4894 Instruments, sensors, and techniques
DE: 6304 Benefit-cost analysis
DE: 6324 Legislation and regulations (6615)
SC: Earth and Space Science Informatics [IN]
MN: 2007 Fall Meeting