A yellow torpedo shaped autonomous underwater vehicle is dropped into a blue ocean with a launch and recovery system.

Log Post: The Strategy for Finding Hydrothermal Vents

Traducción al español disponible a continuación Written by Julie Huber and Dave Butterfield Given bad weather to the north at the Kane Fracture Zone, we decided to test our strategy for finding active hydrothermal vents at the Puy de Folles vent field. Previous work by French and Russian colleagues at this site focused on inactive … Continued

Log Post: Back On Course

After successfully avoiding the typhoon, we begin the trip back to port to complete the rest of our loading. The return leg is a good opportunity to further test the on-board instruments whilst near the relative shelter of Guam. We escalate from simpler surface tests to deep dives, then on to sampling. This ensures we … Continued

Log Post: Silent Running

Today has been a quiet day but we’ve been making steady progress.  The first CTD cast started at 4am and the last of the day will finish just before midnight. Tomorrow we will start again at 04h00.  Working to that pattern we have managed to measure water column properties from top to bottom at three … Continued

Log Post: We’re at Sea!

The time has finally come to start our exploration of Perth Canyon and so we left dock early this morning to get a first glimpse of what lies ahead. However, as mentioned in a previous post, not everything always goes according to plan – and in our case we are still missing one part for … Continued

Log Post: Tracking Eddies

Once the LRAUVs Opah and Aku rendezvoused with the Falkor in the center of the eddy, it was time to switch them from survey mode to tracking and sampling mode. Our target eddy feature, the Deep Chlorophyll Max (DCM, discussed here), is indicated as a bright red/orange color in the data visualizations of Opah’s sensor … Continued

Log Post: And We Are Off

What does Van Gogh’s Starry Night painting, the whirlpool galaxy, and billowy cloud traces all have in common? The answer is visual representations of fluid motion, something which is very difficult to see in water. However, over the next few weeks the scientists on board Falkor will try to do this exact thing, understand small … Continued

Log Post: Back from the Tasman Sea

After 26 days at sea, the T-Beam crew has sailed back into port along the Derwent River, and tied up on land. We never expected this work to be easy – battling with the constant barrage of storms headed directly from the southern ocean – the Tasman Sea did not disappoint.

Log Post: Marvelous Multibeam Math

With the discovery of big plumes and active venting on the seafloor during CTD tow-yo 6 we really hit the jackpot out here on the Mariana back-arc. This led to further investigation of the site with the Autonomous Underwater Vehicle (AUV) Sentry. The result was a beautiful high-resolution bathymetry map [FK151121_sentry_bathy.jpg] and an even more-detailed photographic … Continued

Log Post: Bonanza on the Back-Arc

Like a bloodhound on the scent, the recent discovery of our first new vent site energized our exploration efforts. Our next target site was on Map 5, which shows two shallow “saddles” separated by deep basins. These high points correspond to places along the Mariana Back-arc where an enhanced supply of molten magma over hundreds of … Continued