Recent changes in the semiannual oscillation in the sub-Antarctic and their connections with cyclone variabilityEntry ID: ASAC_1124
Abstract: The basic data used in this project is the (US) National Centers for Environmental Prediction global reanalysis data set, and we have used the area south of 30S. Two primary data sets have come from the project. The first is the amplitude and phase of the surface semiannual oscillation over the Southern Hemisphere. The second is comprehensive statistics on cyclone behaviour over the hemisphere ... over this period. The project is exploring the links between the variabilities of these parameters. These links have been quantified by producing data sets of correlations and time series analyses.
In this project, the NCEP reanalysis datasets were sourced from: NOAA/National Weather Service, National Centers for Environmental Prediction (5200 Auth Road, Camp Springs, Maryland, 20746 USA).
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 (1999/2000 - 2000/01). They were run on the Sun Workstation cluster in the School of Earth Sciences, The University of Melbourne.
(Click for Interactive Map)
Start Date: 1958-01-01Stop Date: 1997-01-01
Latitude Resolution: 2.5
Longitude Resolution: 2.5
Temporal Resolution: 6 hr
ISO Topic Category
Quality See the links for the source data for further information about the quality of the original datasets.
Access Constraints A pdf copy of the paper describing the model used is available for download from the URL given below. Links to the metadata records describing the original data sources are also available at the URLs given below.
Use Constraints This data set conforms to the PICCCBY Attribution License
Please follow instructions listed in the citation reference provided at the URL below when using these data.
Data Set Progress
Distribution Media: HTTP
Distribution Size: 9.3 MB
Distribution Format: pdf
Role: TECHNICAL CONTACT
Role: DIF AUTHOR
Phone: +61 3 9344 7216
Fax: +61 3 9344 7761
Email: simmonds at unimelb.edu.au
University of Melbourne School of Earth Sciences
Province or State: Victoria
Postal Code: 3052
Simmonds, I., K. Keay and E.-P. Lim, 2003: Synoptic activity in the seas around Antarctica. Monthly Weather Review, 131, 272-288.
Creation and Review Dates
DIF Creation Date: 2000-07-28
Last DIF Revision Date: 2008-04-10