AIS Vessel Transit Counts 2021
Data Set (DS) | Office for Coastal Management (OCM)GUID: gov.noaa.nmfs.inport:67463 | Updated: August 21, 2024 | Published / External
Summary
Short Citation
Office for Coastal Management, 2024: AIS Vessel Transit Counts 2021, https://www.fisheries.noaa.gov/inport/item/67463.
Full Citation Examples
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 Guard's national network of AIS receivers. This dataset represents annual vessel transit counts summarized at a 100 m by 100 m geographic area. A single transit is counted each time a vessel track passes through, starts, or stops within a 100 m grid cell.
Distribution Information
-
Marine Cadastre Data Registry
For coastal and ocean planning
Controlled Theme Keywords
oceans, planningCadastre, transportation
Child Items
No Child Items for this record.
Contact Information
Point of Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202
https://coast.noaa.gov
Extents
-168° W,
-60° E,
50° N,
15° S
2021-01-01 - 2021-12-31
Item Identification
Title: | AIS Vessel Transit Counts 2021 |
---|---|
Status: | Completed |
Publication Date: | 2022-06-24 |
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 Guard's national network of AIS receivers. This dataset represents annual vessel transit counts summarized at a 100 m by 100 m geographic area. A single transit is counted each time a vessel track passes through, starts, or stops within a 100 m grid cell. |
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. |
Supplemental Information: |
Bureau Code: 006:48, Program Code: 006:055 |
Keywords
Theme Keywords
Thesaurus | Keyword |
---|---|
ISO 19115 Topic Category |
oceans
|
ISO 19115 Topic Category |
planningCadastre
|
ISO 19115 Topic Category |
transportation
|
UNCONTROLLED | |
None | coastal |
None | planning |
None | renewable energy |
Spatial Keywords
Thesaurus | Keyword |
---|---|
Global Change Master Directory (GCMD) Location Keywords |
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA
|
UNCONTROLLED | |
None | Exclusive Economic Zone |
None | Outer Continental Shelf |
None | Territorial Sea |
Physical Location
Organization: | Office for Coastal Management |
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City: | Charleston |
State/Province: | SC |
Data Set Information
Data Set Scope Code: | Data Set |
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Maintenance Frequency: | None Planned |
Data Presentation Form: | Map (digital) |
Distribution Liability: |
https://www.marinecadastre.gov/about/disclaimer.html |
Data Set Credit: | U.S. Coast Guard Navigation Center, NOAA Office for Coastal Management, Bureau of Ocean Energy Management |
Support Roles
Point of Contact
Date Effective From: | 2022-06-01 |
---|---|
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: | Publication Date |
---|
Extent Group 1
Extent Group 1 / Geographic Area 1
W° Bound: | -168 | |
---|---|---|
E° Bound: | -60 | |
N° Bound: | 50 | |
S° Bound: | 15 |
Extent Group 1 / Time Frame 1
Time Frame Type: | Range |
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Start: | 2021-01-01 |
End: | 2021-12-31 |
Spatial Information
Spatial Representation
Representations Used
Grid: | Yes |
---|---|
Vector: | No |
Text / Table: | No |
TIN: | No |
Stereo Model: | No |
Video: | No |
Reference Systems
Reference System 1
Coordinate Reference System |
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Access Information
Security Class: | Unclassified |
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Data Use Constraints: |
For coastal and ocean planning |
Distribution Information
Distribution 1
Download URL: | https://marinecadastre.gov/data/ |
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Distributor: | |
Description: |
Marine Cadastre Data Registry |
Distribution 2
Download URL: | https://marinecadastre.gov/downloads/data/ais/ais2021/AISVesselTransitCounts2021.zip |
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Distributor: |
Technical Environment
Description: |
Microsoft Windows, ArcGIS Pro, Azure SQL |
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Data Quality
Accuracy: |
Untested |
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Horizontal Positional Accuracy: |
Compiled to meet 10 meters horizontal accuracy at 95% confidence level |
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. c) This is an aggregate data product derived from input files that were segmented generally by ocean basin. A gap can be seen along the seam line of the input files. The gap distance should never exceed the distance a vessel has traveled between two consecutive position records. |
Conceptual Consistency: |
These data are logically consistent |
Lineage
Sources
AIS Vessel Tracks 2021
Contact Role Type: | Originator |
---|---|
Contact Type: | Organization |
Contact Name: | NOAA Office for Coastal Management |
Publish Date: | 2022-04-29 |
Citation URL: | https://marinecadastre.gov/data/ |
Citation URL Name: | Source Online Linkage |
Citation URL Description: |
URL where the source data were originally accessed. |
Source Contribution: |
Annual vessel tracks built using the Track Builder Pro 1.0 tool with time and distance parameters of 30 minutes and 1 nm. Vessel type definitions derived from the original NMEA record and the Authoritative Vessel Identification Service (AVIS) Vessel Catalog |
Process Steps
Process Step 1
Description: |
1. Select tracks for each vessel type from the 2021 AIS Vessel Tracks geodatabase by groups as defined in the AIS Vessel Type and Group Codes, Marine Cadastre 2. Calculate transit count grids using the MarineCadastre.gov AIS Vessel Transit Counter tool for each month of tracks and for each ocean basin 3. Merge monthly transit count grids into an annual transit count grid |
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Process Date/Time: | 2022-06-01 00:00:00 |
Source: | AIS Vessel Tracks 2021 |
Catalog Details
Catalog Item ID: | 67463 |
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GUID: | gov.noaa.nmfs.inport:67463 |
Metadata Record Created By: | Daniel Martin |
Metadata Record Created: | 2022-06-24 11:48+0000 |
Metadata Record Last Modified By: | Jesse Brass |
Metadata Record Last Modified: | 2024-08-21 15:18+0000 |
Metadata Record Published: | 2022-06-24 |
Owner Org: | OCM |
Metadata Publication Status: | Published Externally |
Do Not Publish?: | N |
Metadata Last Review Date: | 2022-06-24 |
Metadata Review Frequency: | 1 Year |
Metadata Next Review Date: | 2023-06-24 |