Data

ASCAT C-band backscatter-derived sea ice freeboard in the Weddell Sea

Australian Antarctic Division
Fraser, A.D., Cartwright, J. and Ramm, N. ; FRASER, ALEXANDER ; CARTWRIGHT, JESSICA ; RAMM, NICOLA
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.26179/5ddcb1e01aeda&rft.title=ASCAT C-band backscatter-derived sea ice freeboard in the Weddell Sea&rft.identifier=10.26179/5ddcb1e01aeda&rft.publisher=Australian Antarctic Data Centre&rft.description=This dataset is a time series of sea ice freeboard proxy estimation based on ASCAT C-band backscatter measurements. File format is unformatted binary, with each file 632*664 pixels, and 32 bits per pixel (floating point).Two datasets are presented here, as detailed in University of Tasmania Honours thesis by Nicola Ramm: unmasked, i.e., no attempt to mask multiyear and marginal sea ice, and masked, where these are masked based on backscatter.The grid used by this dataset is described here:https://nsidc.org/data/polar-stereo/ps_grids.htmlThe methods are described in an honours thesis by Nicola Ramm, University of Tasmania.Progress Code: completedStatement: ASCAT data calibration prior to July 2007 is of suspected poorer quality.&rft.creator=Fraser, A.D., Cartwright, J. and Ramm, N. &rft.creator=FRASER, ALEXANDER &rft.creator=CARTWRIGHT, JESSICA &rft.creator=RAMM, NICOLA &rft.date=2019&rft.coverage=westlimit=-60; southlimit=-90; eastlimit=156; northlimit=-55&rft.coverage=westlimit=-60; southlimit=-90; eastlimit=156; northlimit=-55&rft_rights=These data are publicly available for download from the provided URL.&rft_rights=Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/legalcode&rft_rights=This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4301_Scatterometer-derived_ice_thickness_proxy when using these data.&rft_rights=This metadata record is publicly available.&rft_subject=climatologyMeteorologyAtmosphere&rft_subject=oceans&rft_subject=EARTH SCIENCE > CRYOSPHERE > SEA ICE > FREEBOARD&rft_subject=ASCAT > Advanced Scatterometer&rft_subject=METOP-A > Meteorological Operational Satellite - A&rft_subject=AMD/AU&rft_subject=CEOS&rft_subject=AMD&rft_subject=ACE/CRC&rft_subject=GEOGRAPHIC REGION > POLAR&rft_subject=OCEAN > SOUTHERN OCEAN&rft_subject=CONTINENT > ANTARCTICA&rft.type=dataset&rft.language=English Access the data
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Attribution 4.0 International (CC BY 4.0)
https://creativecommons.org/licenses/by/4.0/legalcode

These data are publicly available for download from the provided URL.

This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4301_Scatterometer-derived_ice_thickness_proxy when using these data.

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Full description

This dataset is a time series of sea ice freeboard proxy estimation based on ASCAT C-band backscatter measurements.
File format is unformatted binary, with each file 632*664 pixels, and 32 bits per pixel (floating point).
Two datasets are presented here, as detailed in University of Tasmania Honours thesis by Nicola Ramm: "unmasked", i.e., no attempt to mask multiyear and marginal sea ice, and "masked", where these are masked based on backscatter.

The grid used by this dataset is described here:
https://nsidc.org/data/polar-stereo/ps_grids.html

The methods are described in an honours thesis by Nicola Ramm, University of Tasmania.

Lineage

Progress Code: completed
Statement: ASCAT data calibration prior to July 2007 is of suspected poorer quality.

Notes

Purpose
A proxy measurement of sea ice freeboard, as detailed in University of Tasmania Honours thesis by Nicola Ramm.

Data time period: 2007-03-01 to 2017-12-31

This dataset is part of a larger collection

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156,-55 156,-86 -60,-86 -60,-55 156,-55

48,-72.5

text: westlimit=-60; southlimit=-90; eastlimit=156; northlimit=-55

Subjects
ACE/CRC | AMD | AMD/AU | ASCAT > Advanced Scatterometer | CEOS | CONTINENT > ANTARCTICA | EARTH SCIENCE > CRYOSPHERE > SEA ICE > FREEBOARD | GEOGRAPHIC REGION > POLAR | METOP-A > Meteorological Operational Satellite - A | OCEAN > SOUTHERN OCEAN | climatologyMeteorologyAtmosphere | oceans |

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Other Information
Citation reference for this metadata record and dataset. (GET DATA > DIRECT DOWNLOAD)

url : https://data.aad.gov.au/eds/5037/download

Public information for AAS project AAS_4301 (PROJECT HOME PAGE)

url : https://projects.aad.gov.au/search_projects_results.cfm?project_no=AAS_4301

Citation reference for this metadata record and dataset. (VIEW RELATED INFORMATION)

url : https://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4301_Scatterometer-derived_ice_thickness_proxy

Identifiers
ACN 633 798 857