[Location: Location_Category='GEOGRAPHIC REGION', Location_Type='TROPICS']
Quasi-Biennial Oscillation (QBO) Zonal Wind Index, 1953-presentEntry ID: QBO_ZONAL_WIND_INDEX
Abstract: [Text Source: Freie Universitat Berlin, http://www.geo.fu-berlin.de/en/met/ag/strat/produkte/qbo/ ]
Almost 50 years ago, the Quasi-Biennial Oscillation (QBO) of the winds in the equatorial stratosphere was detected due to the establishment of a global, regularly measuring radiosonde network (Graystone, 1959; Ebdon, 1960).
As part of the compilation of our daily stratospheric charts we have ... tabulated the daily wind observations of selected stations near the equator since 1957. For the earlier years, the values were extracted from the Northern Hemisphere Data Tabulations. From these daily values the monthly mean zonal wind components were calculated for the levels 70, 50, 40, 30, 20, 15, and 10 hPa and a data set from 1953 to the present was produced by combining the observations of the three radiosonde stations Canton Island (closed 1967), Gan/Maledive Islands (closed 1975), and Singapore (data file: qbo.dat).
This data set is supposed to be representative of the equatorial belt since all studies have shown that longitudinal differences in the phase of the QBO are small. It should be noted, however, that some uncertainties arose at higher levels during the early years from the scarcity of observations. More information on the original data can be found in Naujokat (1986).
A second data set has been produced since 1987 from the Singapore data by using the daily vertical wind profiles to obtain a higher vertical resolution. In this set you will find the monthly mean zonal wind components at Singapore for every year from 1987 to the present at the levels 100 (since 1997), 90, 80, 70, 60, 50, 45, 40, 35, 30, 25, 20, 15, 12, and 10-hPa (singapore.dat).
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Data Set Citation
Dataset Originator/Creator: Center for International Earth Science Information Network (CIESIN)/Columbia University, United Nations Food and Agriculture Programme (FAO), and Centro Internacional de Agricultura Tropical (CIAT)
Dataset Title: Gridded Population of the World, Version 3 (GPWv3): Population Count Grid, Future Estimates
Dataset Release Date: 2005-12
Dataset Release Place: Palisades, NY
Dataset Publisher: NASA Socioeconomic Data and Applications Center (SEDAC)
Data Presentation Form: rasterOnline Resource: http://sedac.ciesin.columbia.edu/data/set/gpw-v3-population-count-f...
CRYOSPHERE > GLACIERS/ICE SHEETS > GLACIERS
CRYOSPHERE > GLACIERS/ICE SHEETS > ICE SHEETS
CRYOSPHERE > SNOW/ICE > SNOW DENSITY
CRYOSPHERE > SNOW/ICE > SNOW DEPTH
CRYOSPHERE > GLACIERS/ICE SHEETS > ABLATION ZONES/ACCUMULATION ZONES
CRYOSPHERE > GLACIERS/ICE SHEETS > GLACIER ELEVATION/ICE SHEET ELEVATION
Quality The dates given in temporal coverage are accurate to year only.
Access Constraints The dataset is available for download from the provided URL.
Use Constraints This data set conforms to the PICCCBY Attribution License
Please follow instructions listed in the citation reference at the provided URL when using these data.
Data Set Progress
Distribution Media: HTTP
Distribution Size: 85 KB
Distribution Format: .xls
Role: TECHNICAL CONTACT
Phone: +61 2 4921 8870
Fax: +61 2 4921 5877
Email: ian.goodwin at newcastle.edu.au
SCHOOL OF GEOSCIENCES UNIVERSITY OF NEWCASTLE
Province or State: New South Wales
Postal Code: 2308
Role: DIF AUTHOR
Phone: +61 3 6232 3157
Fax: +61 3 6232 3351
Email: sarah.park at aad.gov.au
203 Channel Highway Australian Antarctic Division
Province or State: Tasmania
Postal Code: 7050
Creation and Review Dates
DIF Creation Date: 2003-04-08
Last DIF Revision Date: 2010-06-08