Estimating Atmospheric Trace Element Deposition Over the Global Ocean
A recently developed method based on the natural radionuclide beryllium-7 has provided a means to estimate the bulk atmospheric trace element deposition velocity
Science Highlights
Some recent GEOTRACES science findings are reported below.
Dissolved gallium unravels Pacific and Atlantic waters in the Arctic Ocean
Whitmore and co-workers demonstrate that the dissolved gallium distribution provide a better water source deconvolution than the nutrient tracers
Precise estimate of the mercury export from the Arctic to the Atlantic Ocean
Using new observations acquired during GEOTRACES Arctic cruises, a refined arctic mercury budget has been established
Rare Earth Elements and neodymium isotopes as tracers in the Mediterranean Sea
Garcia-Solsona and co-workers analysed 9 seawater stations around the central Mediterranean Sea
A new model simulates the speciation and dispersion of hydrothermal iron
Roshan and collaborators present new observations of dissolved iron and its physical speciation in the South Pacific
Mechanisms driving biological CO2 drawdown in the Subarctic Pacific unraveled
Nishioka and co-authors compiled comprehensive data sets of iron and macronutrients covering the whole subarctic Pacific…
The biogeochemical ventures of dissolved iron and manganese across the Arctic Ocean
The spatial distributions and biogeochemical cycling of dissolved Fe (dFe) and dissolved manganese (dMn) across the Arctic Ocean were established during summer and fall 2015. The Canadian GEOTRACES transect extended […]
Arctic mercury export flux with marine particles higher than anticipated
In the ocean, the residence time of mercury (Hg), is largely driven by two removal mechanisms: evasion to the atmosphere and downward export flux with settling particles. The later was […]
Land inputs in the Arctic transported up to the North Pole
A new study found that freshwater runoff from rivers and continental shelf sediments are bringing significant quantities of carbon and trace elements into parts of the Arctic Ocean