Short Citation:
Office for Coastal Management, 2021: West Coast AIS Vessel Tracks 2011, https://www.fisheries.noaa.gov/inport/item/48946.

Item Identification

Title: West Coast AIS Vessel Tracks 2011
Short Name: WestCoastVesselTracklines2011
Status: Completed
Publication Date: 2014-02
Abstract:

Automatic Identification Systems (AIS) are a navigation safety device that transmits and monitors the location and characteristics of many vessels in U.S. and international waters in real-time. In the U.S. the Coast Guard and industry collect AIS data, which can also be used for a variety of coastal planning purposes. NOAA and BOEM have worked jointly to re-task and make available some of the most important records from the U.S. Coast Guards national network of AIS receivers. Information such as location, time, ship type, length, width, and draft have been extracted from the raw data and prepared as track lines for analyses in desktop GIS software.

Purpose:

To support coastal and ocean planning and other activities pursuant to the Energy Policy Act, Coastal Zone Management Act, Magnuson-Stevens Fishery Conservation and Management Act, National Environmental Policy Act, Rivers and Harbors Act and the Submerged Lands Act.

Notes:

11090

Supplemental Information:

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.00001

Longitude_Resolution: 0.00001

Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: D WGS 1984

Ellipsoid_Name: WGS 1984

Semi-major_Axis: 6378137.0

Denominator_of_Flattening_Ratio: 298.257223563

Keywords

Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords Earth Science > Human Dimensions > Environmental Governance/Management
ISO 19115 Topic Category oceans
ISO 19115 Topic Category transportation
MarineCadastre AIS
MarineCadastre track lines
MarineCadastre Vessel Traffic

Temporal Keywords

Thesaurus Keyword
None 2011

Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords Continent > North America > United States Of America
None Pacific Ocean
None United States
None West Coast

Physical Location

Organization: Office for Coastal Management
City: Charleston
State/Province: SC

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: None Planned
Data Presentation Form: Map (digital)
Distribution Liability:

NOAA makes no warranties or representations whatsoever regarding the availability, quality, accuracy, content, completeness or suitability for the user's needs of such information. The services, information, and data made available on the Multipurpose Marine Cadastre web site are provided 'as is' without warranties of any kind. These data are intended for coastal and ocean use planning. Not for navigation.

Support Roles

Data Steward

CC ID: 655043
Date Effective From: 2014-02
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Distributor

CC ID: 655045
Date Effective From: 2014-02
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Metadata Contact

CC ID: 655046
Date Effective From: 2014-02
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Point of Contact

CC ID: 655044
Date Effective From: 2014-02
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 655049
W° Bound: -125.999998
E° Bound: -114
N° Bound: 51.608083
S° Bound: 10.955933

Extent Group 1 / Time Frame 1

CC ID: 655048
Time Frame Type: Range
Start: 2011-01-01
End: 2011-12-31

Spatial Information

Spatial Representation

Representations Used

Vector: Yes

Access Information

Security Class: Unclassified
Data Access Constraints:

None

Data Use Constraints:

These data are intended for coastal and ocean use planning. Not for navigation.

URLs

URL 1

CC ID: 655040
URL: ftp://ftp.coast.noaa.gov/pub/MSP/2011AIS/WestCoastVesselTracklines2011.zip
URL Type:
Online Resource

URL 2

CC ID: 655041
URL: https://marinecadastre.gov/data/
URL Type:
Online Resource

URL 3

CC ID: 655042
URL: https://coast.noaa.gov/
URL Type:
Online Resource

Activity Log

Activity Log 1

CC ID: 655062
Activity Date/Time: 2016-05-23
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 655061
Activity Date/Time: 2017-11-14
Description:

Converted from FGDC Content Standard for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details.

Activity Log 3

CC ID: 717593
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Data Quality

Accuracy:

The attributes in this dataset are believed to be accurate.

Horizontal Positional Accuracy:

Maximum scale of intended use is 1:80,000.

Completeness Report:

Spatial and attribute properties are believed to be complete, although attribute information has been simplified. Geometric thresholds from original data are preserved. No tests have been completed for exhaustiveness.

Conceptual Consistency:

These data are believed to be logically consistent. Geometry is topologically clean.

Lineage

Sources

2011 United States Automatic Identification System Database

CC ID: 655036
Contact Name: Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office for Coastal Management (OCM); Department of Interior (DOI), Bureau of Ocean Energy Management (BOEM)
Publish Date: 2014-02-01
Extent Type: Range
Extent Start Date/Time: 2011-01-01
Extent End Date/Time: 2011-12-31
Citation URL: https://marinecadastre.gov/ais/
Source Contribution:

2011 AIS at 1 Minute Intervals for UTM Zone 17, 18 and 19 | Source Geospatial Form: vector digital data | Type of Source Media: online

Process Steps

Process Step 1

CC ID: 655037
Description:

1 Download all 2011 geodatabases for UTM zones 10 and 11 from https://marinecadastre.gov/AIS/default.aspx as well as the AIS Track Builder tool.

2 Separate Broadcast points for each of these months that fell within the Esri's World UTM Zone 10 into a layer for the upper half of the zone and a layer for the lower half

3 Create model for each of the UTM zones to run the track builder tool on each of the monthly Broadcast feature classes. Settings used for the tool was to break track lines using "Maximum Time and Distance", maximum time value = 30 and maximum distance value = 1. Also included both the Voyage and Vessel attributes. Ran Model for each UTM zone.

4 MERGE of all monthly track line feature classes for each of the UTM zones. Now have 2 feature classes representing total 2011 annual vessel traffic for each UTM Zone 10 and a third for UTM Zone11.

5 Removal of superfluous fields

6 Create model to create max draught in meters field for annual feature class, calculate statistics to find the maximum draft value, create new field 'maxDraught' in this statistics result intermediate feature class, add values to this new field using field calculator in expression: [max draught statistic] *0.1. This calculation converts the draught values form 1/10th meter units to meter units. Join this field to the annual feature class based on the MMSI field.

7 Repair geometry for each of the annual track line feature classes for each UTM Zone

8 REPROJECT all three UTM zone's annual tracklines into web mercator

9 MERGE all three UTM zone's annual track lines into one feature class. Now have a 2011 annual West Coast track lines feature class.

Process Date/Time: 2014-01-01 00:00:00

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity (ENT) WestCoastVesselTracklines2011

Catalog Details

Catalog Item ID: 48946
Metadata Record Created By: Anne Ball
Metadata Record Created: 2017-11-14 15:56+0000
Metadata Record Last Modified By: Jesse Brass
Metadata Record Last Modified: 2020-06-17 09:35+0000
Metadata Record Published: 2019-01-24
Owner Org: OCM
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2020-01-25