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An investigation into Southern Hemisphere cyclone-sea ice links using long records of NCEP analyses and passive microwave data

Australian Antarctic Data Centre
SIMMONDS, IAN
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://data.aad.gov.au/metadata/records/ASAC_1080&rft.title=An investigation into Southern Hemisphere cyclone-sea ice links using long records of NCEP analyses and passive microwave data&rft.identifier=https://data.aad.gov.au/metadata/records/ASAC_1080&rft.publisher=Australian Antarctic Data Centre&rft.description=The sea ice data are the SMMR/SMMI data for the period 1978-96. These are in the form of daily (or bi-diurnal) concentration amounts on a regular grid. The data on the extratropical cyclones has been obtained using the automatic algorithm of Simmonds and Keay (2000, Journal of Climate, 873-885). This algorithm was applied to the NCEP reanalysis product for the period 1978-96. In this project, sea ice data were sourced from the National Snow and Ice Data Center (CIRES, University of Colorado, Boulder, CO 80309-0449, USA). The NCEP reanalysis data set was sourced from: NOAA/ National Weather Service, National Centers for Environmental Prediction (5200 Auth Road, Camp Springs, Maryland, 20746 USA). The sea ice concentration data used were for the Antarctic only (the entire Antarctic sea ice domain). Data started in 1978. All data were collected by satellite. A link to a metadata record for these data are available from the URL given below. Two NCEP reanalysis data sets were used in this study. The first was NCEP/NCAR, with 6-hourly data available from 1958 (see the URL provided below for further information). The second was the NCEP/DOE set, with 6-hourly data available from 1979 (see the URL provided below for further information). In this project the following model/analysis was applied: Application of The University of Melbourne cyclone tracking scheme (Simmonds et al., 2003, Monthly Weather Review, 131, 272-288) and a broad range of statistical tests. Brief details are provided in the Summary. See the link for the pdf document for more detailed information. These complex statistical analyses were run over the entire length of the project (1998/99 - 2000/01). They were run on the Sun Workstation cluster in the School of Earth Sciences, The University of Melbourne.&rft.creator=SIMMONDS, IAN &rft.date=2000&rft.coverage=northlimit=-30.0; southlimit=-90.0; westlimit=-180.0; eastLimit=180.0; projection=WGS84&rft.coverage=northlimit=-30.0; southlimit=-90.0; westlimit=-180.0; eastLimit=180.0; projection=WGS84&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=ASAC_1080 when using these data.&rft_subject=climatologyMeteorologyAtmosphere&rft_subject=SEA ICE CONCENTRATION&rft_subject=EARTH SCIENCE&rft_subject=CRYOSPHERE&rft_subject=SEA ICE&rft_subject=TROPICAL CYCLONES&rft_subject=HUMAN DIMENSIONS&rft_subject=NATURAL HAZARDS&rft_subject=Model&rft_subject=NSIDC&rft_subject=NCEP&rft_subject=Sea ice&rft_subject=sea ice concentration&rft_subject=Nimbus-7&rft_subject=Scanning Multichannel Microwave Radiometer&rft_subject=Defense Meteorological Satellite Program&rft_subject=SMMR > Scanning Multichannel Microwave Radiometer&rft_subject=SSM/I > Special Sensor Microwave/Imager&rft_subject=DMSP > Defense Meteorological Satellite Program&rft_subject=DMSP 5D-2/F11 > Defense Meteorological Satellite Program-F11&rft_subject=DMSP 5D-2/F13 > Defense Meteorological Satellite Program-F13&rft_subject=SATELLITES&rft_subject=CONTINENT > ANTARCTICA&rft_subject=GEOGRAPHIC REGION > POLAR&rft_subject=GEOGRAPHIC REGION > SOUTHERN HEMISPHERE&rft_subject=VERTICAL LOCATION > BOUNDARY LAYER&rft_subject=VERTICAL LOCATION > SEA SURFACE&rft_place=Hobart&rft.type=dataset&rft.language=English Access the data
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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=ASAC_1080 when using these data.

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A pdf copy of the paper describing the model used is available for download from the provided URL for AAD staff only. Links to the metadata records describing the original data sources are also available at the URLs given below.

Brief description

The sea ice data are the SMMR/SMMI data for the period 1978-96. These are in the form of daily (or bi-diurnal) concentration amounts on a regular grid. The data on the extratropical cyclones has been obtained using the automatic algorithm of Simmonds and Keay (2000, Journal of Climate, 873-885). This algorithm was applied to the NCEP reanalysis product for the period 1978-96.

In this project, sea ice data were sourced from the National Snow and Ice Data Center (CIRES, University of Colorado, Boulder, CO 80309-0449, USA). The NCEP reanalysis data set was sourced from: NOAA/ National Weather Service, National Centers for Environmental Prediction (5200 Auth Road, Camp Springs, Maryland, 20746 USA).

The sea ice concentration data used were for the Antarctic only (the entire Antarctic sea ice domain). Data started in 1978. All data were collected by satellite. A link to a metadata record for these data are available from the URL given below.

Two NCEP reanalysis data sets were used in this study. The first was NCEP/NCAR, with 6-hourly data available from 1958 (see the URL provided below for further information). The second was the NCEP/DOE set, with 6-hourly data available from 1979 (see the URL provided below for further information).

In this project the following model/analysis was applied:

Application of The University of Melbourne cyclone tracking scheme (Simmonds et al., 2003, Monthly Weather Review, 131, 272-288) and a broad range of statistical tests. Brief details are provided in the Summary. See the link for the pdf document for more detailed information.

These complex statistical analyses were run over the entire length of the project (1998/99 - 2000/01). They were run on the Sun Workstation cluster in the School of Earth Sciences, The University of Melbourne.

Issued: 2000-07-28

Data time period: 1978-01-01 to 1997-12-31

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text: northlimit=-30.0; southlimit=-90.0; westlimit=-180.0; eastLimit=180.0; projection=WGS84

Subjects
CONTINENT > ANTARCTICA | CRYOSPHERE | DMSP 5D-2/F11 > Defense Meteorological Satellite Program-F11 | DMSP 5D-2/F13 > Defense Meteorological Satellite Program-F13 | DMSP > Defense Meteorological Satellite Program | Defense Meteorological Satellite Program | EARTH SCIENCE | GEOGRAPHIC REGION > POLAR | GEOGRAPHIC REGION > SOUTHERN HEMISPHERE | HUMAN DIMENSIONS | Model | NATURAL HAZARDS | NCEP | NSIDC | Nimbus-7 | SATELLITES | SEA ICE | SEA ICE CONCENTRATION | SMMR > Scanning Multichannel Microwave Radiometer | SSM/I > Special Sensor Microwave/Imager | Scanning Multichannel Microwave Radiometer | Sea ice | TROPICAL CYCLONES | VERTICAL LOCATION > BOUNDARY LAYER | VERTICAL LOCATION > SEA SURFACE | climatologyMeteorologyAtmosphere | sea ice concentration |

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