Recent Activity
Hello! I’m Dr. Erik Johnson. Here’s where I share my latest work and updates.
56th International Liège Colloquium
Recently I was able to attend the 56th annual Liège Colloquium on ocean dynamics in Liège, Belgium. I presented a poster summarizing recent work I’ve done on realistic regional modelling in Oceananigans, a Julia-based ocean modelling software with GPU support. Liège Poster The modelling work has been progressing quickly, keep an eye out for future updates here!
Drivers of neritic water intrusions at the subtropical front along a narrow shelf
A numerical model of Aotearoa’s southeast continental shelf forced with realistic discharge from the Clutha River is used to assess the drivers of river plume variability and identify conditions associated with the transport of neritic water beyond the shelf break.
Doctoral Thesis: Impact of subseasonal processes on Aotearoa's southeast shelf break front
Using a synthesis of remotely-sensed, in situ, and modelled data, this work investigates subseasonal (< 60 day) biophysical variability (eg. chlorophyll-a, stratification, freshwater influence) along a shelf break front situated in southeast Aotearoa/New Zealand.
Episodic Summer Chlorophyll-a Blooms Driven by Along-Front Winds at Aotearoa's Southeast Shelf Break Front
This study investigates the influence of along-front wind forcing on chlorophyll-a (Chl-a) at the Otago Shelf Break (OSB) in southeast Aotearoa/New Zealand using remotely-sensed and in situ data.