Ashley T Townsend
Biographic Data
| ID | 9035642 |
|---|---|
| NAME | Ashley T Townsend |
| GIVEN NAMES | Ashley T |
| FAMILY NAME | Townsend |
| SIGNATURE | TOWNSEND A T |
| AFFILIATIONS | University of Tasmania |
| ORCID | 0000-0002-2972-2678 |
| VERIFIED | No |
| TOTAL WORKS | 3 |
| TOTAL CITATIONS | 0 |
| AUTHOR COUNT | 3 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2021 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 0 |
A novel probe to sample dissolved and particulate matter in sea ice at high vertical resolution
Sea ice can be interspersed vertically with both permeable and impermeable layers. These features can be smaller than a few centimetres but are important for understanding biogeochemical cycles in sea ice. Traditionally, sea-ice samples are collected by drilling into the ice with a rotating core barrel with a cutting head. Ice cores are extracted and then cut into sections that are melted to collect the variable of interest. Drawbacks to this met…
A proposed seasonal cycle of dissolved iron-binding ligands in Antarctic sea ice
Iron (Fe) is an essential micronutrient to oceanic microalgae, and its dissolved fraction (DFe) is retained in surface waters by Fe-binding ligands. Previous work has suggested that ligands may also bind Fe within sea ice, although supporting data are limited. This study investigates distribution, concentration, and potential drivers of Fe-binding ligands in Antarctic sea ice, considering the ice type, location and season. Results suggest that th…
Spatial and seasonal distribution of dissolved and particulate bioactive metals in Antarctic sea ice
Iron (Fe) has been shown to limit growth of marine phytoplankton in the Southern Ocean, regulating phytoplankton productivity and species composition, yet does not seem to limit primary productivity in Antarctic sea ice. Little is known, however, about the potential impact of other metals in controlling sea-ice algae growth. Here, we report on the distribution of dissolved and particulate cadmium (Cd), cobalt (Co), copper (Cu), manganese (Mn), ni…
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Spatial and seasonal distribution of dissolved and particulate bioactive metals in Antarctic sea ice
Iron (Fe) has been shown to limit growth of marine phytoplankton in the Southern Ocean, regulating phytoplankton productivity and species composition, yet does not seem to limit primary productivity in Antarctic sea ice. Little is known, however, about the potential impact of other metals in controlling sea-ice algae growth. Here, we report on the distribution of dissolved and particulate cadmium (Cd), cobalt (Co), copper (Cu), manganese (Mn), ni…
A proposed seasonal cycle of dissolved iron-binding ligands in Antarctic sea ice
Iron (Fe) is an essential micronutrient to oceanic microalgae, and its dissolved fraction (DFe) is retained in surface waters by Fe-binding ligands. Previous work has suggested that ligands may also bind Fe within sea ice, although supporting data are limited. This study investigates distribution, concentration, and potential drivers of Fe-binding ligands in Antarctic sea ice, considering the ice type, location and season. Results suggest that th…
A novel probe to sample dissolved and particulate matter in sea ice at high vertical resolution
Sea ice can be interspersed vertically with both permeable and impermeable layers. These features can be smaller than a few centimetres but are important for understanding biogeochemical cycles in sea ice. Traditionally, sea-ice samples are collected by drilling into the ice with a rotating core barrel with a cutting head. Ice cores are extracted and then cut into sections that are melted to collect the variable of interest. Drawbacks to this met…
Chemistry (3 works) · Environmental Science (3 works) · Geology (3 works) · Oceanography (3 works) · Sea ice (3 works) · Arctic and Antarctic ice dynamics (2 works) · Environmental Chemistry (2 works) · Marine and coastal ecosystems (2 works) · Particulates (2 works) · Cadmium (1 work)