Open ocean corridors for swell waves to reach Antarctic ice shelves - 2020-2021 data

• Other Authors: AADC (owner), AADC, DATA OFFICER (distributor), AADC, DATA OFFICER (custodian), AU/AADC > Australian Antarctic Data Centre, Australia (hasAssociationWith), Australian Antarctic Data Centre (publisher), Australian Antarctic Division (sponsor), BENNETTS, LUKE (hasPrincipalInvestigator), Bennetts, L., Massom, R., Reid, P. and Teder, N. (originator), MASSOM, ROB (collaborator), TEDER, NATHAN (collaborator), TEDER, NATHAN (hasPrincipalInvestigator), TEDER, NATHAN (author)
• Format: Dataset
• Language: unknown
• Published: Australian Ocean Data Network
• Subjects: oceans; EARTH SCIENCE > CRYOSPHERE > SEA ICE; OCEANS > OCEAN WAVES > SWELLS; WAVE HEIGHT; CORRIDORS; ICE-OCEAN INTERACTIONS; Computer > Computer; MODELS; AMD; AMD/AU; CEOS; CONTINENT > ANTARCTICA; GEOGRAPHIC REGION > POLAR; OCEAN > SOUTHERN OCEAN; Antarc*; Antarctic; Antarctica; Ice Shelf; Ice Shelves; Sea ice; Southern Ocean
• Online Access: https://researchdata.edu.au/open-ocean-corridors-2021-data/2817687

Progress Code: completed Purpose To provide the means to recreate the corridor algorithm, as well as providing individual shelf data from the corridor algorithm to show the rate of formation, and the likelihood high wave events reach the shelf. The AA4528 corridor dataset contains the Matlab scripts for the corridor algorithm, ice shelf locations and file extensions. The corridor algorithm is designed to calculate the parts of the ocean which can directly propagate swell into an exposed ice shelf. The algorithm achieves this as an expansion of the coastal exposure algorithm (Reid and Massom, 2021), with the details of the inner working of the algorithm work presented in the paper attached with this dataset. Corridors can be used to calculate the frequency of swell reaching an ice shelf per year and can be combined with hindcasts to extract relevant wave data to an ice shelf for modelling or data analysis purposes. The corridor algorithm requires sea ice concentration data, which was provided by the NSIDC Sea ice concentrations from the Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data, Version 1 (https://nsidc.org/data/nsidc-0051). Ice shelf coordinates were extracted from the gfsc_25s.msk that come with the sea ice data, with the aid of Antarctic Mapping Toolbox (Greene et al., 2017), and were attached separately to make editing more consistent. As this is designed to use daily sea ice data from the 1st of January 1979 onwards, I’ve also attached the sea ice files for the off-days when the sea-ice data was taken every 2nd day. Th file extensions script was also included to be able to switch through off-day files and changes that occur with the NSIDC file format. The ocean hindcast that the corridor algorithm was built around is the CAWCR Wave Hindcast – Aggregated Collection (https://data.csiro.au/collections/collection/CI39819v005). The corridor algorithm uses daily data to make it consistent with the sea ice data and calculated the maximum significant wave height for each cell present in the ...