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Title Sum-
Institution Dataset ID
     data   graph     AIS Ship Traffic: Mariana and Wake: 2011-2012    ?   F   I   M   background (external link) RSS Subscribe University of Hawaii ais_mari_20112012

The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL cdm_data_type String Point
attribute NC_GLOBAL Conventions String CF-1.6
attribute NC_GLOBAL Easternmost_Easting double 170.0
attribute NC_GLOBAL featureType String Point
attribute NC_GLOBAL geospatial_lat_max double 35.0
attribute NC_GLOBAL geospatial_lat_min double 5.0
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double 170.0
attribute NC_GLOBAL geospatial_lon_min double 140.0
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL infoUrl String (external link)
attribute NC_GLOBAL institution String University of Hawaii
attribute NC_GLOBAL ISO_Topic_Categories String oceans,transportation
attribute NC_GLOBAL license String The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.
attribute NC_GLOBAL Northernmost_Northing double 35.0
attribute NC_GLOBAL sourceUrl String (external link)
attribute NC_GLOBAL Southernmost_Northing double 5.0
attribute NC_GLOBAL summary String Ship position data from a satellite-based Automatic Identification System (AIS) were obtained jointly by PacIOOS (J. Potemra), SOEST/ORE of the University of Hawaii (E. Roth), and the Papahanaumokuakea Marine National Monument (PNMN) (D. Graham) through a one-time purchase from ORBCOMM LLC. The purchase agreement was made in late 2012 and was for a 30-by-30 degree section of historical AIS data that included the region of the Hawaiian Islands. The data include AIS long and unchecked reports for a one year period: August 2011 through mid-August 2012. The raw, monthly GPS files were locally converted to NetCDF for the PacIOOS data servers. Due to vendor constraints, release of the raw data is limited.
attribute NC_GLOBAL time_coverage_end String 2012-08-16T23:57:36Z
attribute NC_GLOBAL time_coverage_start String 2011-08-01T00:00:00Z
attribute NC_GLOBAL title String AIS Ship Traffic: Mariana and Wake: 2011-2012
attribute NC_GLOBAL Westernmost_Easting double 140.0
variable obs   int  
attribute obs actual_range int 1, 748960
attribute obs long_name String observation
attribute obs short_name String obs
attribute obs units String 0
variable time   double  
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.3121568E9, 1.345161456E9
attribute time axis String T
attribute time ioos_category String Time
attribute time long_name String Time
attribute time short_name String time
attribute time standard_name String time
attribute time time_origin String 01-JAN-1970 00:00:00
attribute time units String seconds since 1970-01-01T00:00:00Z
variable latitude   float  
attribute latitude _CoordinateAxisType String Lat
attribute latitude actual_range float 5.0, 35.0
attribute latitude axis String Y
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude short_name String lat
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
variable longitude   float  
attribute longitude _CoordinateAxisType String Lon
attribute longitude actual_range float 140.0, 170.0
attribute longitude axis String X
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude short_name String lon
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable ship_id_mmsi   int  
attribute ship_id_mmsi actual_range int 0, 973519110
attribute ship_id_mmsi ioos_category String Identifier
attribute ship_id_mmsi long_name String ship identification number (MMSI)
attribute ship_id_mmsi short_name String ship_id
attribute ship_id_mmsi units String 0
variable navigational_status   int  
attribute navigational_status actual_range int 0, 15
attribute navigational_status colorBarMaximum double 15.0
attribute navigational_status colorBarMinimum double 0.0
attribute navigational_status flag_meanings String under_way_using_engine at_anchor not_under_command restricted_manoeuvrability constrained_by_her_draught moored aground engaged_in_fishing under_way_sailing reserved_for_future_use reserved_for_future_use reserved_for_future_use reserved_for_future_use reserved_for_future_use AIS_SART_active not_defined
attribute navigational_status flag_values int 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
attribute navigational_status ioos_category String Other
attribute navigational_status long_name String navigational status
attribute navigational_status short_name String navstat
attribute navigational_status units String 0
attribute navigational_status valid_range int 0, 15
variable speed_over_ground   float  
attribute speed_over_ground actual_range float 0.0, 102.0
attribute speed_over_ground colorBarMaximum double 100.0
attribute speed_over_ground colorBarMinimum double 0.0
attribute speed_over_ground ioos_category String Other
attribute speed_over_ground long_name String speed over ground
attribute speed_over_ground short_name String sog
attribute speed_over_ground standard_name String platform_speed_wrt_ground
attribute speed_over_ground units String kts
variable course_over_ground   float  
attribute course_over_ground actual_range float 0.0, 409.5
attribute course_over_ground colorBarMaximum double 360.0
attribute course_over_ground colorBarMinimum double 0.0
attribute course_over_ground ioos_category String Other
attribute course_over_ground long_name String course over ground
attribute course_over_ground short_name String cog
attribute course_over_ground standard_name String platform_course
attribute course_over_ground units String deg
variable true_heading   float  
attribute true_heading actual_range float 0.0, 511.0
attribute true_heading colorBarMaximum double 360.0
attribute true_heading colorBarMinimum double 0.0
attribute true_heading ioos_category String Other
attribute true_heading long_name String true heading
attribute true_heading short_name String thead
attribute true_heading units String deg
variable rate_of_turn   float  
attribute rate_of_turn actual_range float -128.0, 127.0
attribute rate_of_turn colorBarMaximum double 128.0
attribute rate_of_turn colorBarMinimum double -128.0
attribute rate_of_turn ioos_category String Other
attribute rate_of_turn long_name String rate of turn
attribute rate_of_turn short_name String rot
attribute rate_of_turn units String degrees minutes-1
variable position_accuracy   int  
attribute position_accuracy actual_range int 0, 1
attribute position_accuracy colorBarMaximum double 1.0
attribute position_accuracy colorBarMinimum double 0.0
attribute position_accuracy flag_meanings String high_<=_10m low_>_10m
attribute position_accuracy flag_values int 0, 1
attribute position_accuracy ioos_category String Other
attribute position_accuracy long_name String position accuracy
attribute position_accuracy short_name String pflag
attribute position_accuracy units String 0
attribute position_accuracy valid_range int 0, 1

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.

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