Service Description: The offshore wind Maritime Technical Working Group (M-TWG), led by the New York State Department of State (DOS) and supported by NYSERDA is an advisory entity formed to engage regional stakeholders with maritime and/or offshore wind responsibilities and interests working to advance offshore wind (OSW) development. This Anchorage Area Assessment seeks to provide objective data regarding common practice anchoring areas (CPAA) that are outside of the designated anchorage areas (DAA) to support OSW development and planning. CPAAs were determined analyzing 2017 AIS ping data related to vessel presence and anchorage events- for full details on the analysis, see the Anchorage Area Assessment Companion Memo.
Contact
BTMI (COWI) Engineering, P.C.
88 Pine Street Suite 400, New York, NY 10005
Website: www.cowi.com
Service ItemId: 1821b06387814e89b58bec51146cf72b
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Supported query Formats: JSON
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Description: Using a vessel traffic model developed by COWI in 2022,* vessel AIS pings from 2017 were analyzed to determine idle ping counts (Speed Over Ground between 0 and 1 knots & pings further off shore than 1000ft to avoid mooring vessels) by area to identify CPAA outside of the DAA. The ping counts were based on idling AIS pings, number of unique Idling Episode Tracks (30 minutes or more), Average Duration of Idling Episodes, Median Duration of Idling Episodes, Total duration of Idling Episode Tracks and an (ping count) occupancy metric calculated using the total duration of the idling episode track within an anchorage area polygon for the 2017 year divided by the surface area of of the anchorage area polygon. This metric is measured in hours per square mile (hr/sq mi). For full details on the analysis, see the Anchorage Area Assessment Companion Memo and contact COWI for further data.
Using a vessel traffic model developed by COWI in 2022,* vessel AIS pings from 2017 were analyzed to determine idle ping counts (Speed Over Ground between 0 and 1 knots & pings further off shore than 1000ft to avoid mooring vessels) by area to identify CPAA outside of the DAA. The ping counts were based on idling AIS pings, number of unique Idling Episode Tracks (30 minutes or more), Average Duration of Idling Episodes, Median Duration of Idling Episodes, Total duration of Idling Episode Tracks and an (ping count) occupancy metric calculated using the total duration of the idling episode track within an anchorage area polygon for the 2017 year divided by the surface area of of the anchorage area polygon. This metric is measured in hours per square mile (hr/sq mi). For full details on the analysis, see the Anchorage Area Assessment Companion Memo and contact COWI for further data.
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