Michael Meredith

4 weeks ago | nature.com | Rhiannon Jones |Jon Hawkings |Michael Meredith |Maeve C. Lohan |Oliver Moore |Robert M. Sherrell | +3 more

AbstractIron is an essential micronutrient for phytoplankton and plays an integral role in the marine carbon cycle. The supply and bioavailability of iron are therefore important modulators of climate over glacial-interglacial cycles. Inputs of iron from the Antarctic continental shelf alleviate iron limitation in the Southern Ocean, driving hotspots of productivity. Glacial meltwater fluxes can deliver high volumes of particulate iron.

2 months ago | nature.com | Natasha Lucas |J. Alexander Brearley |Katharine R. Hendry |E. Povl Abrahamsen |Michael Meredith |Theo Spira

AbstractIce-sheet mass loss is one of the clearest manifestations of climate change, with Antarctica discharging mass into the ocean via melting or through calving. The latter produces icebergs that can modify ocean water properties, often at great distances from source. This affects upper-ocean physics and primary productivity, with implications for atmospheric carbon drawdown.