Search Results for CTD
HAGANTA, GUAM – A diverse team of scientists are returning from a 28-day expedition onboard R/V Falkor that has more than doubled the number of known hydrothermal vent sites in the Mariana Back-arc region. This area, west of the Mariana Trench, is where plate spreading and submarine volcanism are concentrated. Several momentous findings were made, … Continued
Schmidt Ocean Institute’s research vessel Falkor recently arrived in Honolulu after a 21 day expedition across the equator looking at small-scale mixing in the central Pacific Ocean. She is now undergoing scheduled upgrades before heading off in early October to map the world’s largest underwater volcano, Tamu Massif. While some of the projects during the upgrade … Continued
This morning at 0800, Falkor arrived at the entrance to Juan de Fuca Strait on her way offshore. There was a little fog, but everyone was pleased to find relatively calm seas in the 2-meter range. The acoustic Doppler current profiler ran all night during the steam from the Straight of Georgia, through Haro Strait, … Continued
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
Like a domino effect, several things happen to seawater when it comes in contact with a volcano. When a volcano is not erupting and there is hydrothermal activity, hot water with very different chemistry from seawater rises up, just like steam would over a boiling pot. It spreads out and begins to create particles, or … Continued
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
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
After a bumpy night of sailing from Kahe (West O‘ahu) to the south of O’ahu and Moloka‘i, avoiding [most of] the roughest seas in the channel, we have arrived at our target eddy of interest – a cyclonic eddy (shown in blue) just North of Maui. We have been tracking this particular eddy for several … Continued
Summarizing a cruise is one of the most difficult duties of a Chief Scientist. I could distill all our work down to a slew of metrics—over 600 chemical analyses for pH, nutrients, and dissolved gases, 312 CTD casts, eight incubator deployments, 325 deck board experiments, and 216 liters of filtered sea water. All told, we … Continued
This week Pete and I started doing our experiments with water collected from the CTD profiles.
