Open ocean corridors for swell waves to reach Antarctic ice shelves - 2020-2021 data
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 what parts of the ocean which can directly propagate swell into an ice shelf. The algorithm achieves this as an expansion of th...
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Australian Antarctic Data Centre
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Online Access: | https://researchdata.edu.au/open-ocean-corridors-2021-data/1821939 https://doi.org/10.26179/jk2f-bv91 https://data.aad.gov.au/metadata/records/AAS_4528_CORRIDOR http://nla.gov.au/nla.party-617536 |
id |
ftands:oai:ands.org.au::1821939 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
oceans SEA ICE EARTH SCIENCE CRYOSPHERE SWELLS OCEAN WAVES WAVE HEIGHT CORRIDORS ICE-OCEAN INTERACTIONS Computer > Computer MODELS EARTH SCIENCE SERVICES CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR |
spellingShingle |
oceans SEA ICE EARTH SCIENCE CRYOSPHERE SWELLS OCEAN WAVES WAVE HEIGHT CORRIDORS ICE-OCEAN INTERACTIONS Computer > Computer MODELS EARTH SCIENCE SERVICES CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR Open ocean corridors for swell waves to reach Antarctic ice shelves - 2020-2021 data |
topic_facet |
oceans SEA ICE EARTH SCIENCE CRYOSPHERE SWELLS OCEAN WAVES WAVE HEIGHT CORRIDORS ICE-OCEAN INTERACTIONS Computer > Computer MODELS EARTH SCIENCE SERVICES CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR |
description |
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 what parts of the ocean which can directly propagate swell into an 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 unimpeded 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. 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 hindcast. Data that was extracted from it was the maximum daily significant wave height recorded in the corridor and the direction of that cell, and was taken from 1/1/1979 to 31/12/2019. The excel spreadsheet attached contains relevant corridor data for each ice shelf with an area greater than 500 km^2. Area was determined by either the supplementary files from Rignot et. al., 2013, or ice shelf areas from the Antarctic mapping toolbox (Greene et al., 2017). Angle1 and Angle2 were the ones used in the direction filter, and there should be a comment in the filter with how it handles if Angle 1 is greater than Angle 2 or vice versa. Ac is the corridor area, PA is potential corridor area (i.e. the absolute max it could be with the settings we used, Ac_max is the maximum corridor area, Ac^tot is the total corridor area, D_cor is the days that corridors were present, Hs is significant wave height and HW (high waves) are counting days per year when significant wave heights greater than or equal to 6 m (Morim et al., 2021). Refs: Greene, C. A., Gwyther, D. E. and Blankenship, D. D. (2017) ‘Antarctic Mapping Tools for MATLAB’, Computers and Geosciences, 104, pp. 151–157. doi:10.1016/j.cageo.2016.08.003. Morim, J. et al. (2021) ‘Global-scale changes to extreme ocean wave events due to anthropogenic warming’, Environmental Research Letters, 16(7), p. 074056. doi:10.1088/1748-9326/ac1013. Reid, P. and Massom, R. (2021) ‘Change and Variability in Antarctic Coastal Exposure , 1979-2020’. In pre-print (https://assets.researchsquare.com/files/rs-636839/v1/02002d0b-2c6c-402b-8e14-7f77075d8f90.pdf?c=1631885736) Rignot, E. et al. (2013) ‘Ice-shelf melting around antarctica’, Science, 341(6143), pp. 266–270. doi:10.1126/science.1235798. |
author2 |
BENNETTS, LUKE (hasPrincipalInvestigator) REID, PHIL (hasPrincipalInvestigator) REID, PHIL (processor) TEDER, NATHAN (hasPrincipalInvestigator) TEDER, NATHAN (processor) MASSOM, ROB (processor) Australian Antarctic Data Centre (publisher) |
format |
Dataset |
title |
Open ocean corridors for swell waves to reach Antarctic ice shelves - 2020-2021 data |
title_short |
Open ocean corridors for swell waves to reach Antarctic ice shelves - 2020-2021 data |
title_full |
Open ocean corridors for swell waves to reach Antarctic ice shelves - 2020-2021 data |
title_fullStr |
Open ocean corridors for swell waves to reach Antarctic ice shelves - 2020-2021 data |
title_full_unstemmed |
Open ocean corridors for swell waves to reach Antarctic ice shelves - 2020-2021 data |
title_sort |
open ocean corridors for swell waves to reach antarctic ice shelves - 2020-2021 data |
publisher |
Australian Antarctic Data Centre |
url |
https://researchdata.edu.au/open-ocean-corridors-2021-data/1821939 https://doi.org/10.26179/jk2f-bv91 https://data.aad.gov.au/metadata/records/AAS_4528_CORRIDOR http://nla.gov.au/nla.party-617536 |
op_coverage |
Spatial: northlimit=-57.5; southlimit=-83; westlimit=-180; eastLimit=180; projection=WGS84 Temporal: From 1979-09-01 to 2019-08-31 |
long_lat |
ENVELOPE(168.233,168.233,-72.100,-72.100) ENVELOPE(78.139,78.139,-68.582,-68.582) ENVELOPE(-180,180,-57.5,-83) |
geographic |
Antarctic Greene The Antarctic The Corridor |
geographic_facet |
Antarctic Greene The Antarctic The Corridor |
genre |
Antarc* Antarctic Antarctica Ice Shelf Ice Shelves Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Ice Shelf Ice Shelves Sea ice |
op_source |
Australian Antarctic Data Centre |
op_relation |
https://researchdata.edu.au/open-ocean-corridors-2021-data/1821939 a333806e-7785-4c1e-b347-f28fecdbcab4 doi:10.26179/jk2f-bv91 AAS_4528_CORRIDOR https://data.aad.gov.au/metadata/records/AAS_4528_CORRIDOR http://nla.gov.au/nla.party-617536 |
op_doi |
https://doi.org/10.26179/jk2f-bv91 |
_version_ |
1766139715954671616 |
spelling |
ftands:oai:ands.org.au::1821939 2023-05-15T13:40:46+02:00 Open ocean corridors for swell waves to reach Antarctic ice shelves - 2020-2021 data BENNETTS, LUKE (hasPrincipalInvestigator) REID, PHIL (hasPrincipalInvestigator) REID, PHIL (processor) TEDER, NATHAN (hasPrincipalInvestigator) TEDER, NATHAN (processor) MASSOM, ROB (processor) Australian Antarctic Data Centre (publisher) Spatial: northlimit=-57.5; southlimit=-83; westlimit=-180; eastLimit=180; projection=WGS84 Temporal: From 1979-09-01 to 2019-08-31 https://researchdata.edu.au/open-ocean-corridors-2021-data/1821939 https://doi.org/10.26179/jk2f-bv91 https://data.aad.gov.au/metadata/records/AAS_4528_CORRIDOR http://nla.gov.au/nla.party-617536 unknown Australian Antarctic Data Centre https://researchdata.edu.au/open-ocean-corridors-2021-data/1821939 a333806e-7785-4c1e-b347-f28fecdbcab4 doi:10.26179/jk2f-bv91 AAS_4528_CORRIDOR https://data.aad.gov.au/metadata/records/AAS_4528_CORRIDOR http://nla.gov.au/nla.party-617536 Australian Antarctic Data Centre oceans SEA ICE EARTH SCIENCE CRYOSPHERE SWELLS OCEAN WAVES WAVE HEIGHT CORRIDORS ICE-OCEAN INTERACTIONS Computer > Computer MODELS EARTH SCIENCE SERVICES CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR dataset ftands https://doi.org/10.26179/jk2f-bv91 2021-12-06T23:38:56Z 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 what parts of the ocean which can directly propagate swell into an 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 unimpeded 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. 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 hindcast. Data that was extracted from it was the maximum daily significant wave height recorded in the corridor and the direction of that cell, and was taken from 1/1/1979 to 31/12/2019. The excel spreadsheet attached contains relevant corridor data for each ice shelf with an area greater than 500 km^2. Area was determined by either the supplementary files from Rignot et. al., 2013, or ice shelf areas from the Antarctic mapping toolbox (Greene et al., 2017). Angle1 and Angle2 were the ones used in the direction filter, and there should be a comment in the filter with how it handles if Angle 1 is greater than Angle 2 or vice versa. Ac is the corridor area, PA is potential corridor area (i.e. the absolute max it could be with the settings we used, Ac_max is the maximum corridor area, Ac^tot is the total corridor area, D_cor is the days that corridors were present, Hs is significant wave height and HW (high waves) are counting days per year when significant wave heights greater than or equal to 6 m (Morim et al., 2021). Refs: Greene, C. A., Gwyther, D. E. and Blankenship, D. D. (2017) ‘Antarctic Mapping Tools for MATLAB’, Computers and Geosciences, 104, pp. 151–157. doi:10.1016/j.cageo.2016.08.003. Morim, J. et al. (2021) ‘Global-scale changes to extreme ocean wave events due to anthropogenic warming’, Environmental Research Letters, 16(7), p. 074056. doi:10.1088/1748-9326/ac1013. Reid, P. and Massom, R. (2021) ‘Change and Variability in Antarctic Coastal Exposure , 1979-2020’. In pre-print (https://assets.researchsquare.com/files/rs-636839/v1/02002d0b-2c6c-402b-8e14-7f77075d8f90.pdf?c=1631885736) Rignot, E. et al. (2013) ‘Ice-shelf melting around antarctica’, Science, 341(6143), pp. 266–270. doi:10.1126/science.1235798. Dataset Antarc* Antarctic Antarctica Ice Shelf Ice Shelves Sea ice Research Data Australia (Australian National Data Service - ANDS) Antarctic Greene ENVELOPE(168.233,168.233,-72.100,-72.100) The Antarctic The Corridor ENVELOPE(78.139,78.139,-68.582,-68.582) ENVELOPE(-180,180,-57.5,-83) |