Research
Here are a few of my published research projects, but there are more in the works!
Published in Journal of Geophysical Research: Oceans, 2023
Combining an ice growth model, remote sensing and reanalysis data, and a radiative transfer model, we found that Antarctic sea ice was widely habitable during 2004-2019 (more so than the Arctic) and did not respond to dramatic decreases in sea ice extent. Habitat variability was strongly tied to the timing of bottom ice melt, indicating that habitat will likely be sensitive to future climate change.
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Published in Elementa: Science of the Anthropocene, 2022
Using radiative transfer and a combination of remote sensing and model datasets, we found that the extent and duration of sea ice algal habitat in the Arctic increased during 1985-2018. This was due to the shift from multiyear ice to thinner first-year ice with a thinner snow cover. As ice-free summers in the Arctic are expected around 2050, we predict that this increase will be short-lived.
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Published in Journal of Geophysical Research: Oceans, 2019
Over 2 weeks of repeated sampling at Davis Station (East Antarctica) characterized a stable landfast sea ice ecosystem in late spring. Remineralization likely resupplied enough nutrients to maintain high accumulation of diatoms in the bottom ice, but silica was likely limiting. 1D biogeochemical modelling best reproduced the system when the half-saturation constant for silica uptake was increased to 50 μM, indicating a low algal affinity for silica.
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Sea ice breakup in the Lemaire Channel, Antarctica
