IMAS Metadata Catalogue
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These data underpin the Fraser et al., 2026 publication in Nature Communications: "Revealing the Antarctic marginal ice zone: a decade-long wave-in-ice climatology". They are presented as one .csv file per year, each containing around 8500-9000 rows. Each row corresponds to the data retrieved from a SARAL half-orbit (pole to pole). Each row presents the along-track summary fields used to estimate the wave-affected marginal ice zone width. The marginal ice zone width is estimated from the difference in latitude between the ice edge and the latitude of the "inner MIZ limit". The inner MIZ limit is estimated from AltiKa Ka-band radar altimeter waveforms: where the waveform of returned power becomes suffiently peaky and "steep", we interpret this as being the point where wave passage becomes undetectable.
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This repository contains data files (netCDF format) related to the model configuration developed and used by Joan Llort between 2011 and 2019. The model is a 1D configuration based on PISCES v1 and the specific routines and namelist are here: https://github.com/jllort/PISCESv1_1D The data in this repository is organised in two groups: - The first group contains the forcing files used to create and idealised representation of Southern Ocean water columns. Forcing files were automatically modified to force PISCES models with different mixed layer depth and iron environments. The files presented here are for a single water column but they can be modified using the python routines in the GitHub link above. - The second group contains the outputs for one of the experiments. We studied the impact of changes in ferricilne, winter mixed layer and summer mixed layer depths over Southern Ocean primary production.
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Model data used to quantify the roles of mean and transient flows in transporting heat across almost the entire Antarctic continental slope and shelf using an ocean/sea-ice model run at eddy- and tide-resolving (1/48 degree) horizontal resolution.