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BO-Axial Caldera Array-INTERNATIONAL-D-1

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BO-Axial Caldera Array-ASHES VENT FIELD

BO-Axial Caldera Array-EASTERN CALDERA

BO-Axial Caldera Array-CENTRAL CALDERA

BO-Axial Base Array-MJ03A

BO-Axial Base Array-LJ03A

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Pre-deployment deck photo of fluid- and microbial-DNA samplers RASFLA/PPSDNA, inside a seafloor-frame, focused on the fluid sampler portion of the instrument. Photo Credit: M. Elend; University of Washington; V19

In 2019, a digital-still camera (front-center) and a fluid- and microbial-DNA sampler RASFLA/PPSDNA, inside a seafloor-frame (back-center), were installed in the International District Hydrothermal Field. A titanium vent cap or “hat” (center-middle) rests on top of a hydrothermal-vent structure covered with microbes. Inside the “hat” are temperature probes and intake nozzles for the fluid and DNA sampler. Photo Credit: UW; NSF-OOI; CSSF; DiveJ2-1190; V19

Pre-deployment deck photo of fluid- and microbial-DNA samplers RASFLA/PPSDNA, inside a seafloor-frame, before deployment in the International District Hydrothermal Field, on dive J2-1190 during VISIONS'19. The fluid sampler is attached to a saddle on the left side of the frame. Photo Credit: M. Elend; University of Washington; V19

Demonstration of an interactive bioacoustic sonar echogram-generation tool, which is an upcoming feature on the Interactive Oceans Data Portal.

The plotting interface is an easy to use application that allows new users to quickly explore OOI Regional Cabled Array data in different ways, including multiple-parameter time series (left) and depth profile plots compared with shipboard discrete samples (right).

The interactive map interface provides a landing page that shows all OOI Regional Cabled Array assets at a glance with intuitive navigation tools.

Sunrise over the Pacific Ocean during the Pythias Oasis 2019 cruise aboard the R/V Atlantis. Credit: S. Karaduzovic, Queens College

Queens College student Steve Karaduzovic helping to process sediment core samples in the R/V Atlantis science lab during the Pythias Oasis 2019 cruise.

Scientists, students and the Jason group works together inside the control van during a dive at Pythias Oasis. Credit: M. Elend, University of Washington.

The edge of the collapse basin is marked by extremely steep slopes capped by thin carbonate deposit. Clam beds, bacterial mats and rock fish, anemones and carbonate cobbles are hosted on the rim. Credit: D. Kelley, University of Washington/NSF/WHOI.

The collapse zone at Pythias Oasis hosts thick yellow and white bacterial mats, here about to be sampled with a push core held in Jasons' manipulator. Credit: D. Kelley, University of Washington/NSF

Lightening on the horizon celebrates Sentry diving at Pythias Oasis during the UW-OSU expedition funded by NSF. Credit: M. Elend, University of Washington.