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Endurance Array.

Location of long-term Endurance Array.

Plan view map of the Endurance Array

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Plan view map of the Endurance Array, including Oregon and Washington Lines. The Endurance mooring sites are at 25 m, 80m, and 600m. Gliders provide additional cross-shelf sampling and extend the sampling area north and south along the coast. Also shown are the connections to the regional scale node (RSN) cabled infrastructure at the 80 m and 600 m sites on the Oregon Line.

Endurance Array Oregon Line

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Schematic diagram of the Endurance Array - Oregon Line, showing surface-mooring/profiler pairs at offshore, shelf and inshore sites, benthic experiment packages (BEP), and RSN cabled infrastructure including low-voltage nodes (LVN) that provide the interface between Endurance Array and RSN assets. Gliders will patrol the coastal upwelling region, with one offshore line coincident with the moored array. (Woods Hole Oceanographic Institution)

Endurance Array Grays Harbor Line

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Schematic diagram of the Endurance Array - Washington Line. Shown are surface mooring/profiler pairs  at offshore, mid-shelf and inshore sites, and multi-function nodes (MFN). Gliders will patrol the region, with one offshore line coincident with the moored array. (Woods Hole Oceanographic Institution)

The Endurance Array

Location, moored Arrays: Oregon Line (44° 39’N, 125°W to coast); Washington Line (47° 0’N, 125°W to coast)
Water Depth: 600 m to 25 m

Platform Types: Three fixed platform sites at 25, 80 and 600 m water depth (the 80- and 600-m sites are cabled on the Oregon Line, the remaining Endurance array sites are uncabled) supporting surface moorings, water column profilers and benthic boundary layer sensors, supplemented by six gliders.

Description of Infrastructure:

Oregon Line (Newport)
  • Two electro-mechanical (EM) surface moorings, with wind and photovoltaic power generation, satellite communications, and meteorological sensors (80, 600 m)
  • One EM surface mooring with battery power and satellite communications (25 m)
  • Two bottom-mounted surface piercing profilers, one stand-alone (25 m) and one cabled to Regional Scale Node (RSN) seafloor infrastructure (80 m)
  • One hybrid profiler mooring with deep profiler and shallow profiler, cabled to RSN seafloor infrastructure (600 m)
  • One uncabled benthic multi-function node (MFN) with sensors, electrical communications to the surface, and supplemental battery power provided by the surface buoy (25 m)
  • Two cabled benthic experiment packages (BEP) with fiber optic communications and power provided through primary nodes attached to the RSN (80m, 600 m)
  • Six gliders
  Washington Line (Grays Harbor)
  • Two electro-optical-mechanical (EOM) surface moorings, with wind, photovoltaic and fuel cell power generation, satellite communications, and meteorological sensors (80, 600 m)
  • One EM surface mooring with battery power and satellite communications (25 m)
  • Two stand-alone, bottom-mounted surface piercing profilers (25, 80 m) with acoustic communications to the surface buoy
  • One wire-following profiler mooring at 600 m
  • One uncabled benthic multi-function node (MFN) with sensors, electrical communications to the surface, and supplemental battery power provided by the surface buoy (25 m)
  • Two uncabled benthic MFNs with fiber optic communications to the surface and power provided through surface moorings (80 m, 600 m)