[deutsche Version unten] 7th Weekly Report(4th April – 8th April 2022) Our last station (station 44) was conducted in the early morning of April 4. Immediately after the station was finished, we departed for Noumea, and started analysing the last set of samples, clearing our laboratories and packing our boxes and loading the containers.The packing […]
Observations of Monowai volcano cone and mercury in the South Pacific Ocean
[Deutsche Version unten] Weekly Report SO289 Progress: We have had a successful week, following our unplanned detour to Tahiti. We commenced sampling again on March 23 and have been able to conduct daily station occupations with CTD casts and in situ pump deployments (Fig. 1). The weather has been variable with winds up to force […]
Mercury in the South Pacific Ocean
Guten Tag from the fabulous mercury duo! We are Alina (PhD Student, University of Pau) on board for the Marine Mercury Lab at the Mediterranean Institute of Oceanography Marseille and Kati (Postdoc, GEOMAR). Our mission on this cruise is to provide new observations on all chemical forms of mercury (called Hg species) in the South […]
Learning de luxe
Hey there, This is the second GEOTRACES cruise I have attended. Back in Kiel I am taking part in the bachelor’s program Biochemistry and molecular biology. I have been working as a research assistant in Eric Achterberg’s lab at GEOMAR for the last two years, and I am very happy to join them on the […]
No pain, no gain
[deutsche Version unten] We are almost done! Our voyage between Chile and New Caledonia has been just under two months now! Despite all the challenges, we are going strong, through Southern Pacific, one of the least studied areas in our planet, working very hard, day and night. We woke up at 3am from time to […]
Blog from the CREATE participants
The SO289 research cruise aboard R/V Sonne, which involves the trans-Pacific leg of the GEOTRACES program, is a 48-day expedition consisting of 48 planned CTD cast stations taken at approximately 1-3° intervals all the way from the coast of Chile to the South Fiji Basin (Figure 1). The chief objective of this research cruise is […]
Observations of surface ocean pH and pCO2, and (micro-)nutrient control of ocean productivity in the South Pacific Ocean
[deutsche Version unten] 5th Weekly Report SO289 Progress: We have had a successful last few days, following our unplanned detour to Tahiti. We commenced sampling again on Wednesday morning (March 23) just outside the EEZ of French Polynesia and have been able to conduct daily station occupations with CTD casts and in situ pump deployments. […]
Observations of plastic litter, underwater images with video camera and seafloor bathymetry
4th Weekly report SO289 (deutsche Version unten) Progress: We have had a successful week, and until Friday night (March 18), we were able to conduct daily station occupations with CTD casts and in situ pump deployments. We have made steady progress west towards Noumea along our 31.5°S latitude cruise track. Surface waters from the tow-fish […]
Biological nitrogen fixation across the subtropical South Pacific Ocean
(deutsche Version unten) This is the second scientific cruise that I joined since my arrival at GEOMAR in 2021. This time we flew to Valparaiso, Chile and boarded the German research vessel RV SONNE, and started our journey across the entire South Pacific to New Caledonia. On this cruise, SO289, which is part of the […]
Tracing water mass mixing and continental inputs in the south Pacific Ocean with dissolved neodymium isotopes
(deutsche Version unten) Neodymium (Nd) is one of the Rare Earth Elements (REE) and consists of seven isotopes. One of the isotopes, 143Nd, is a decay product of the samarium isotope 147Sm that also belongs to the REE with a half-life of 1.06×1011 years. Since the Sm/Nd ratio in rocks and minerals varies, there are […]