Climate engineering by artificial ocean upwelling: Channelling the sorcerer's apprentice

Climate engineering by artificial ocean upwelling: Channelling the sorcerer’s apprentice

[1] Recent suggestions to reduce the accumulation of anthropogenic carbon dioxide in the atmosphere have included ocean fertilization by artificial upwelling. Our coupled carbon‐climate model simulations suggest that artificial upwelling may, under most optimistic assumptions, be able to sequester atmospheric CO2 at a rate of about 0.9 PgC/yr. However, the model predicts that about 80% of the c...

Under Pressure: Climate Change, Upwelling, and Eastern Boundary Upwelling Ecosystems

1 Farallon Institute for Advanced Ecosystem Research, Petaluma, CA, USA, 2 School of Science and Engineering, University of the Sunshine Coast, Maroochydore, QLD, Australia, 3 Department of Biological Sciences and Marine Science Program, University of South Carolina, Columbia, SC, USA, 4 Marine Science Institute, University of Texas at Austin, Port Aransas, TX, USA, 5 Department for Biodiversit...

Ocean Upwelling : Observations , Analytical Modelingand Numerical Simulation

Traditionally, ocean upwelling has been studied mostly from observational data and analytical models of simpliied ow situations. In many areas of (geophysical) uid dynamics, numerical analysis has gradually gained importance and caught up with, if not bypassed, experimental simulations or observations. But, recent laboratory experiments show the very complicated nature of upwelling fronts and i...

Deep mantle plumes and convective upwelling beneath the Pacific Ocean

Equatorial upwelling enhances nitrogen fixation in the Atlantic Ocean

[1] Surface waters in upwelling regions are thought to be nutrient rich and hence inhibit nitrogen fixation (diazotrophy) because diazotrophs can preferentially assimilate nitrate and ammonia instead of expending energy to fix dinitrogen. We found average nitrogen fixation rates to be two to seven times higher in the surface waters of the upwelling region of the eastern equatorial Atlantic than...