20260420 11315600 1.0 FALSE ONC_Cables20241104 002 -130.430698 -53.121248 47.387306 74.660250 1 Geographic GCS_WGS_1984 Angular Unit: Degree (0.017453) <GeographicCoordinateSystem xsi:type='typens:GeographicCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/3.3.0'><WKT>GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433],AUTHORITY["EPSG",4326]],VERTCS["CGVD2013_height",VDATUM["Canadian_Geodetic_Vertical_Datum_of_2013"],PARAMETER["Vertical_Shift",0.0],PARAMETER["Direction",1.0],UNIT["Meter",1.0],AUTHORITY["EPSG",6647]]</WKT><XOrigin>-400</XOrigin><YOrigin>-400</YOrigin><XYScale>1111948722.2222221</XYScale><ZOrigin>-756.74182350000001</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>8.983152841195215e-09</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><LeftLongitude>-180</LeftLongitude><WKID>4326</WKID><LatestWKID>4326</LatestWKID><VCSWKID>6647</VCSWKID><LatestVCSWKID>6647</LatestVCSWKID></GeographicCoordinateSystem> 20241104 12464700 20260423 13492800 150000000 5000 ISO19115_3 North American Profile of ISO19115 2003 Esri ArcGIS 13.3.0.52636 ONC_Cables 2020-11-20T00:00:00 -0.000023 633.999977 1 -130.430698 -53.121248 74.660250 47.387306 <div style='text-align:Left;'><div><div>This feature layer provides a comprehensive spatial inventory of all Ocean Networks Canada (ONC) subsea fiber-optic and electrical cables currently resting on the seafloor. It serves as a vital resource for mapping the backbone infrastructure of ONC's marine observatories, supporting spatial planning, academic research, and marine safety.The dataset includes the complete network geometry for both high-voltage main (backbone) cables and low-voltage extension cables that connect terminal nodes to specific instrument platforms.To provide a complete historical and operational overview, the layer categorizes cables by their current operational status:<ul><li>Active: Fully operational cables actively transmitting power and/or telemetry data.</li><li>Damaged: Infrastructure that is physically compromised, severed, or currently offline awaiting maintenance.</li><li>Inactive: Decommissioned, retired, or historical cable segments that remain in situ on the seafloor.</li></ul><h3>Data Currency and Maintenance</h3>Because seafloor infrastructure updates occur following maintenance cruises, equipment deployments, or environmental impacts, this layer is updated periodically. See the "Item Updated" metadata date on this page for the most recent data refresh.Limitations of use: This GIS layer is for informational, research, and educational planning purposes only. It does not represent an official nautical chart and is NOT FOR NAVIGATION, ANCHORING, OR COMMERCIAL TRAWLING PLAN PURPOSES. Cable positions are generalized and should not be used to determine exact physical clearance or burial depth on the seafloor.Vintage: Vintage of cable network attributes and status: 2026Update Frequency: Update frequency: Updated irregularly following marine maintenance operations ~monthly.Source: Source: <a target='_blank' href='https://www.oceannetworks.ca' rel='nofollow ugc noopener noreferrer'>Ocean Networks Canada (ONC) Infrastructure Database</a>Citation: Citation: Ocean Networks Canada. (2026). Subsea Main and Extension Cable Network Feature Layer. Published via ArcGIS Online.</div></div></div> ONC Cables Ocean Networks Canada This feature contains active and inactive Ocean Networks Canada cables currently deployed on the seafloor. Mainly located in Canada with some cables in Antarctica. This feature layer is provided 'as-is' without warranty of any kind, either expressed or implied, including but not limited to the implied warranties of merchantability or fitness for a particular purpose. While we strive to maintain accurate locations of active instruments, the completeness, accuracy, or real-time status of the data is not guaranteed. Refer to Ocean Networks Canada Terms of Use here: <a target='_blank' href='https://This feature layer is provided 'as-is' without warranty of any kind, either expressed or implied, including but not limited to the implied warranties of merchantability or fitness for a particular purpose. While we strive to maintain accurate locations of active instruments, the completeness, accuracy, or real-time status of the data is not guaranteed. Refer to Ocean Networks Canada Terms of Use here: https://www.oceannetworks.ca/terms-of-use/' rel='nofollow ugc noopener noreferrer'>https://www.oceannetworks.ca/terms-of-use/</a>Ocean Networks Canada File Geodatabase Feature Class 10.8 dataset EPSG 6.2(3.0.1) 0 Simple FALSE 0 TRUE TRUE ONC_Cables20241104 Feature Class 0 OBJECTID OBJECTID_1 OID 4 0 0 Internal feature number. Esri Sequential unique whole numbers that are automatically generated. Shape Shape Geometry 0 0 0 Feature geometry. Esri Coordinates defining the features. Shape_Length Shape_Length Double 8 0 0 Length of feature in internal units. Esri Positive real numbers that are automatically generated. 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