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: Filtering the ocean for answers… (one litre at a time)

I started my PhD this year at University of Western Australia (UWA), working with Ryan Lowe who is also currently on Falkor.  I am collecting data to investigate the nutrient dynamics and productivity of Scott Reef, and how this relates to the physical oceanographic processes over the system.  Modelling has shown that open ocean water … Continued

Log Post: Where Are We, Where Are We Going

Marine Technician Jimbo (Paul Duncan) has spent all night, every night, for 24 nights keeping the Falkor’s multibeam sonar operational and recording data. The sonar sends “pings” of sound to the sea floor.  The pings bounce back.  The length of time between sending and receiving can be converted to depth.  Each pulse sends over 400 … 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

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: Microzooplankton: Lawnmowers of the Sea

Take a breath, now take another… for one of those breaths you have a phytoplankton to thank. About half of the world’s oxygen comes from the photosynthesis of oceanic microscopic plants, called phytoplankton. These plants grow so fast that if there wasn’t some control on their population, they would turn the oceans into a green … Continued

Log Post: Winnie the Pooh and the Uncarved Block

Lots to tell you about today. We started off with a CTD coming on deck from the furthest north point we have been to (and also about as unpromising as can be) since we started our latest search.   Then, because Casey and the Nereus team needed to do some engineering work on the back deck … Continued