59927
AIS Vessel Tracks 2019
Data Set
Published / External
55360
AIS
Project
Completed
2020-08-27
A vessel track shows the location and characteristics of commercial and recreational boats as a sequence of positions transmitted by an Automatic Identification System (AIS). AIS signals are susceptible to interference and this can result in a gap within a vessel track. The distribution, type, and frequency of vessel tracks are a useful aid to understanding the risk of conflicting uses within a certain geographic area. The vessel track positions in this data set are collected and recorded from land-based antennas as part of a national network operated by the U.S. Coast Guard.
To support ocean planning activities pursuant to the Executive Order Regarding the Ocean Policy to Advance the Economic, Security, and Environmental Interests of the United States, the Energy Policy Act, the Rivers and Harbors Act, and the Coastal Zone Management Act.
Bureau Code: 006:48, Program Code: 006:055
Theme
ISO 19115 Topic Category
oceans
Theme
ISO 19115 Topic Category
transportation
Theme
coastal
Theme
planning
Theme
renewable energy
Spatial
Exclusive Economic Zone
Spatial
Outer Continental Shelf
Spatial
Territorial Sea
Spatial
United States of America
Data Set
Geodatabase
None Planned
Map (digital)
OBJECTID, MMSI, TrackStartTime, TrackEndTime, VesselType, Length, Width, Draft, DurationMinutes, VesselGroup
https://www.marinecadastre.gov/about/disclaimer.html
U.S. Coast Guard Navigation Center, Bureau of Ocean Energy Management, NOAA Office for Coastal Management
Point of Contact
2020-08-27
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
-168
-60
50
15
Range
2019-01-01
2019-12-31
No
Yes
No
No
No
Geometry Only
No
No
Yes
No
No
No
Geographic 2D
EPSG:4269
NAD83
North American Datum 1983
GRS 1980
6378137
298.257222101
1
Geodetic Latitude
Lat
degree
north
1
Geodetic Latitude
Lat
degree
north
2
Geodetic Longitude
Lon
degree
east
2
Geodetic Longitude
Lon
degree
east
Unclassified
For coastal and ocean planning
https://marinecadastre.gov/data
MarineCadastre.gov Data Registry
https://marinecadastre.gov/downloads/data/ais/ais2019/AISVesselTracks2019.zip
Microsoft Windows, ArcGIS Pro
Compiled to meet 10 meters horizontal accuracy at 95% confidence level
a) The geographic extent of these data include the conterminous United States, Hawaii, U.S. Virgin Islands and Puerto Rico.
b) Presence, absence, and contiguity of a track is dependent on the distance and temporal filters applied in the track building algorithm. Parameters for these data were 1 nautical mile and 30 minutes.
These data are logically consistent
U.S. Coast Guard Navigation Center
2020-01-01
Daily compressed log files containing original AIS messages in NMEA format for the months of January through December for the United States
1
1. Filter the raw NMEA data to a one-minute sample rate and select a subset of fields using MarineCadastre.gov NMEA to SQL Server processing tools
2. Load filtered records to an SQL Server 2019 database using MarineCadastre.gov NMEA to SQL Server processing tools
3. Conduct quality and completeness check using logging results from the filter and loading process
4. Update the IMO, CallSign, VesselName, Length, Width, VesselType, and Draft from United States Coast Guard AVIS where original AIS values are missing
5. Add a new vessel type code to each record fragment that originated from the United States Coast Guard AVIS
6. Develop track line features directly from the SQL Server database using a customize version of the MarineCadastre.gov Track Builder 3.1 (64-bit version) for each month of broadcast records and for each ocean basin, using a filter setting of 30 minutes and 1 mile
7. Added field for vessel type group and populated based on the vessel type code to vessel group mapping described in attribute metadata
8. Added field for track line duration, and calculated the time in minutes between the start and end time for each track feature
9. Performed visual quality and consistency checks, and removed vessel tracks that were clearly invalid (on land) or beyond the ocean basin
10. REPAIR GEOMETRY to remove features with null geometry
2019-01-01T00:00:00
gov.noaa.nmfs.inport:59927
Jesse Brass
2020-06-03T18:03:22
SysAdmin InPortAdmin
2023-05-30T18:09:44
2020-07-23
Office for Coastal Management
OCM
1002
Public
No
2020-07-23
1 Year
2021-07-23