Infrastructure Status

OOI’s infrastructure consists of fixed and mobile platforms outfitted with scientific instruments and nodes that provide power and connectivity. The robust instrumented OOI arrays provide continuous streams of ocean data 24/7, in spite of operating in a challenging open ocean environment.

We report here on incidents that are currently affecting OOI’s infrastructure, including timelines for resolution. Most incidents are only temporary in nature, awaiting resolution for the next scheduled operations and management cruise.

Note while the Global Argentine Basin (decommissioned January 2018) and Southern Ocean Arrays (decommissioned January 2020) are no longer in the water, their data remain available, searchable, and downloadable on Data Explorer.

Any potential impacts on data, including time frame and resolution, are provided in data annotations on the Data Portal and Data Explorer.

DATE	INFRASTRUCTURE	ISSUE	STATUS	ANTICIPATED RESOLUTION

DATE	INFRASTRUCTURE	ISSUE	STATUS	ANTICIPATED RESOLUTION
5/6/24	Regional Cabled Array	System to be powered down at 8 PT for maintenance	Power will be restored no later than 8 PT 5/7/24	Over the course of the week there may be temporary network interruptions as maintenance continues
4/19/24	Washington Shelf Profiler Buoy	Struck by a ship, went ashore and recovered	No longer reporting data in real-time	Buoy will be recovered and data transmission restored in fall 2024
4/16/24	Endurance Washington Inshore Coastal Surface Piercing Profiler	Technical problems with the proffiler	Not deployed yet	Anticipate deployment later this spring
04/08/24	Endurance Washington Offshore Mooring	Lost communications with bottom instruments	7 internal instruments will continue to collect data; 2 externally powered instruments will no longer log data	Internally logged data will be recovered and real-time bottom data restored on fall expedition
10/10/23	Papa Flanking Mooring B	Lost ability to store data for acoustic transmission to gliders	Gliders will not be able to telemeter any post-October 2023 FLMB data	All sensors continue to collect data, which will be made available following recovery in April 2024
8/15/22	Endurance Array Gliders	Less than baseline of six gliders in water is not always met.	Maintenance cycles and weather curtailment of small ship operations cause this.	Gliders are prioritized on the Grays Harbor and Newport glider lines.

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Infrastructure Status