AIS Vessel Tracks 2018
Office for Coastal Management
Data Set
(DS)
| ID: 59569
| Published / External
Created: 2020-05-11
|
Last Modified: 2024-08-21
Project (PRJ) | ID: 55360
ID: 59569
Data Set (DS)
* Discovery• First Pass
» Metadata Rubric
Item Identification
| * » Title | AIS Vessel Tracks 2018 |
|---|---|
| Short Name | |
| * Status | Completed |
| Creation Date | |
| Revision Date | |
| • Publication Date | 2020-06-23 |
| * » Abstract |
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. |
| * Purpose |
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. |
| Notes | |
| Other Citation Details | |
| • Supplemental Information |
Bureau Code: 006:48, Program Code: 006:055 |
| DOI (Digital Object Identifier) | |
| DOI Registration Authority | |
| DOI Issue Date |
Keywords
Theme Keywords
| Thesaurus | Keyword |
|---|---|
| ISO 19115 Topic Category | oceans |
| ISO 19115 Topic Category | transportation |
| None | coastal |
| None | planning |
| None | renewable energy |
Temporal Keywords
| Thesaurus | Keyword |
|---|---|
* Spatial Keywords
| Thesaurus | Keyword |
|---|---|
| None | Exclusive Economic Zone |
| None | Outer Continental Shelf |
| None | Territorial Sea |
| None | United States of America |
Stratum Keywords
| Thesaurus | Keyword |
|---|---|
Instrument Keywords
| Thesaurus | Keyword |
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Platform Keywords
| Thesaurus | Keyword |
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Physical Location
| • » Organization | |
|---|---|
| • » City | Charleston |
| • » State/Province | SC |
| • Country | |
| • » Location Description |
Data Set Information
| * Data Set Scope Code | Data Set |
|---|---|
| • Data Set Type | Geodatabase |
| • Maintenance Frequency | None Planned |
| Maintenance Note | |
| » Data Presentation Form | Map (digital) |
| • Entity Attribute Overview |
OBJECTID, MMSI, TrackStartTime, TrackEndTime, VesselType, Length, Width, Draft, DurationMinutes, VesselGroup |
| Entity Attribute Detail Citation | |
| Entity Attribute Detail URL | |
| Distribution Liability |
https://www.marinecadastre.gov/about/disclaimer.html |
| Data Set Credit | U.S. Coast Guard Navigation Center, Bureau of Ocean Energy Management, NOAA Office for Coastal Management |
Support Roles
| * » Support Role | Point of Contact |
|---|---|
| * » Date Effective From | 2020-06-23 |
| Date Effective To | |
| 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 |
| Fax | |
| Mobile | |
| URL | https://coast.noaa.gov |
| Business Hours | |
| Contact Instructions |
| * » Support Role | |
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| * » Date Effective From | |
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| * » Contact | |
| * Contact Instructions |
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| * » Date Effective From | |
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| * Contact Instructions |
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| * » Date Effective From | |
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| * » Contact | |
| * Contact Instructions |
Extents
| Currentness Reference | Publication Date |
|---|
Extent Group 1
| Extent Description |
|---|
Extent Group 1 / Geographic Area 1
| * » W° Bound | -168 |
|---|---|
| * » E° Bound | -60 |
| * » N° Bound | 50 |
| * » S° Bound | 15 |
| * » Description |
Extent Group 1 / Vertical Extent
| EPSG Code | |
|---|---|
| Vertical Minimum | |
| Vertical Maximum |
Extent Group 1 / Time Frame 1
| * » Time Frame Type | Range |
|---|---|
| * » Start | 2018-01-01 |
| End | 2018-12-31 |
| Alternate Start As Of Info | |
| Alternate End As Of Info | |
| Description |
Spatial Information
Spatial Resolution
| Angular Distance | |
|---|---|
| Angular Distance Units | |
| Horizontal Distance | |
| Horizontal Distance Units | |
| Vertical Distance | |
| Vertical Distance Units | |
| Equivalent Scale Denominator | |
| Level of Detail Description |
Spatial Representation
| Grid Representation Used? | No |
|---|---|
| Vector Representation Used? | Yes |
| Text / Table Representation Used? | No |
| TIN Representation Used? | No |
| Stereo Model Representation Used? | No |
| Video Representation Used? | Yes |
Grid Representation
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Axis Dimension |
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Vector Representation
| Topology Level | Geometry Only |
|---|---|
| Complex Object Present? | No |
| Complex Object Count | |
| Composite Object Present? | No |
| Composite Object Count | |
| Curve Object Present? | Yes |
| Curve Object Count | |
| Point Object Present? | No |
| Point Object Count | |
| Solid Object Present? | No |
| Solid Object Count | |
| Surface Object Present? | No |
| Surface Object Count |
Vector Representation
| Topology Level | |
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| Complex Object Present? | |
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Reference Systems
Reference System
| EPSG Code | EPSG:4269 | ||||||||||||||||||||||||||||
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Horizontal Resolution |
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Reference System
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Access Information
| Data License | |
|---|---|
| Data License URL | |
| Data License Statement | |
| * » Security Class | Unclassified |
| * Security Classification System | |
| Security Handling Description | |
| • Data Access Policy | |
| » Data Access Procedure | |
| • » Data Access Constraints | |
| • Data Use Constraints |
For coastal and ocean planning |
| Metadata Access Constraints | |
| Metadata Use Constraints |
Distribution Information
| Start Date | |
|---|---|
| » Download URL | https://marinecadastre.gov/data/ |
| Distributor | |
| File Name | |
| Description |
Marine Cadastre Data Registry |
| File Date/Time | |
| File Type (Deprecated) | |
| Distribution Format | |
| File Size | |
| Application Version | |
| Compression | |
| Review Status |
| Start Date | |
|---|---|
| » Download URL | https://marinecadastre.gov/downloads/data/ais/ais2018/AISVesselTracks2018Atlantic.zip |
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| Start Date | |
|---|---|
| » Download URL | https://marinecadastre.gov/downloads/data/ais/ais2018/AISVesselTracks2018GreatLakes.zip |
| Distributor | |
| File Name | |
| Description | |
| File Date/Time | |
| File Type (Deprecated) | |
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| Start Date | |
|---|---|
| » Download URL | https://marinecadastre.gov/downloads/data/ais/ais2018/AISVesselTracks2018GulfOfMexico.zip |
| Distributor | |
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| Description | |
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| Start Date | |
|---|---|
| » Download URL | https://marinecadastre.gov/downloads/data/ais/ais2018/AISVesselTracks2018Pacific.zip |
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| Description | |
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| File Type (Deprecated) | |
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| Start Date | |
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| » Download URL | https://marinecadastre.gov/downloads/data/ais/ais2018/AISVesselTracks2018WestCoast.zip |
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| Start Date | |
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| » Download URL | https://marinecadastre.gov/downloads/data/ais/ais2018/AISVesselTransitCounts2018.zip |
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| Description | |
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Archive Information
| Location | |
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| File Identifier | |
| File Name | |
| URL | |
| Description | |
| DOI | |
| Archive Date | |
| Archive Update Frequency |
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URLs
| URL | |
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| URL | |
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| URL | |
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| Name | |
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| Description |
Activity Log
| Activity Time | |
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| Responsible Party | |
| Description |
| Activity Time | |
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| Activity Time | |
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Issues
| Issue Date | |
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| Issue |
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| Author | |
| Issue |
| Issue Date | |
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| Author | |
| Issue |
Technical Environment
| Description |
Microsoft Windows, ArcGIS Pro |
|---|
Data Quality
| Representativeness | |
|---|---|
| Accuracy | |
| Analytical Accuracy | |
| Horizontal Positional Accuracy |
Compiled to meet 10 meters horizontal accuracy at 95% confidence level |
| Vertical Positional Accuracy | |
| Quantitation Limits | |
| Bias | |
| Comparability | |
| Completeness Measure | |
| Precision | |
| Analytical Precision | |
| Field Precision | |
| Sensitivity | |
| Detection Limit | |
| Completeness Report |
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 one nautical mile and 30 minutes. |
| Conceptual Consistency |
These data are logically consistent |
| » Quality Control Procedures Employed |
Data Management
| » Have Resources for Management of these Data Been Identified? | |
|---|---|
| » Approximate Percentage of Budget for these Data Devoted to Data Management | |
| » Do these Data Comply with the Data Access Directive? | |
| » Is Access to the Data Limited Based on an Approved Waiver? | |
| » If Distributor (Data Hosting Service) is Needed, Please Indicate | |
| » Approximate Delay Between Data Collection and Dissemination | |
| » If Delay is Longer than Latency of Automated Processing, Indicate Under What Authority Data Access is Delayed |
|
| » Actual or Planned Long-Term Data Archive Location | |
| » If World Data Center or Other, Specify | |
| » If To Be Determined, Unable to Archive, or No Archiving Intended, Explain |
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| » Approximate Delay Between Data Collection and Archiving | |
| » How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive? |
|
Lineage
| » Lineage Statement |
|---|
Sources
| Citation Title | 2018 Nationwide Automatic Identification System |
|---|---|
| Contact Role Type | |
| Contact Type | |
| Contact Name | |
| Publish Date | 2018-12-31 |
| Extent Type | |
| Extent Start Date/Time | |
| Extent End Date/Time | |
| Scale Denominator | |
| Citation URL | |
| Citation URL Name | |
| Citation URL Description | |
| Source Contribution |
Daily compressed log files containing original AIS messages in NMEA format for the months of January through December for the United States. Authoritative Vessel Identification Service (AVIS) Vessel Catalog 2018-01-04. |
| Citation Title | |
|---|---|
| Contact Role Type | |
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| Contact Name | |
| Publish Date | |
| Extent Type | |
| Extent Start Date/Time | |
| Extent End Date/Time | |
| Citation URL | |
| Citation URL Name | |
| Citation URL Description | |
| Scale Denominator |
| Citation Title | |
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| Contact Role Type | |
| Contact Type | |
| Contact Name | |
| Publish Date | |
| Extent Type | |
| Extent Start Date/Time | |
| Extent End Date/Time | |
| Citation URL | |
| Citation URL Name | |
| Citation URL Description | |
| Scale Denominator |
| Citation Title | |
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| Contact Role Type | |
| Contact Type | |
| Contact Name | |
| Publish Date | |
| Extent Type | |
| Extent Start Date/Time | |
| Extent End Date/Time | |
| Citation URL | |
| Citation URL Name | |
| Citation URL Description | |
| Scale Denominator |
Process Steps
| Process Step Number | 1 |
|---|---|
| » Description |
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 2018 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 |
| Process Date/Time | 2020-03-01 00:00:00 |
| Process Contact | |
| Phone (Voice) | |
| Email Address | |
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| Source |
Acquisition Information
Instruments
| Instrument Unavailable Reason |
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| Identifier | |
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| Docucomp UUID | |
| Instrument / Gear | |
| Instrument Type | |
| Description |
| Identifier | |
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| Instrument / Gear | |
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| Description |
| Identifier | |
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Platforms
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FAQs
| Date | |
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| Author | |
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Related Items
| Item Type | Relationship Type | Title |
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Catalog Details
| Catalog Item ID | 59569 |
|---|---|
| Metadata Record Created By | Jesse Brass |
| Metadata Record Created | 2020-05-11 13:28+0000 |
| Metadata Record Last Modified By | Jesse Brass |
| » Metadata Record Last Modified | 2024-08-21 14:13+0000 |
| Metadata Record Published | 2020-06-08 |
| Owner Org | OCM |
| Metadata Publication Status | Published Externally |
| Do Not Publish? | N |
| Metadata Workflow State | Published / External |
| Metadata Last Review Date | 2020-06-08 |
| Metadata Review Frequency | 1 Year |
| Metadata Next Review Date | 2021-06-08 |
| Tags |
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