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QBO: monthly zonal stratospheric winds from tropical radiosonde data (mainly Singapore)

Kerzenmacher, Tobias; Braesicke, Peter

Publisher
Zenodo
DOI
10.5281/zenodo.17807392
Repository
zenodo.org
Language
en

Abstract

Monthly Tropical Stratospheric Zonal Winds from Radiosondes Data Source and Processing: Monthly mean zonal wind data for the tropics are provided as a service for the global QBO and trend analysis communities. The original data source and processing chain were established by the Free University of Berlin (FUB). Currently, the data is processed at the Karlsruhe Institute of Technology (KIT, ROR:04t3en479), Institute of Meteorology and Climate Research (IMK), Germany with the tools developed at FUB. Data Description: The dataset includes monthly mean zonal wind values at pressure levels 100, 90, 80, 70, 60, 50, 45, 40, 35, 30, 25, 20, 15, 12, and 10 hPa, derived from radiosonde observations at four equatorial stations: Kiribati (Canton Island) - data from 1953 to 1967 (closed) Maldives (Gan Island) - data from 1967 to 1975 (closed) Singapore (Payalebar) - data from 1975 to 1989 Singapore (Changi) - data from 1989 onwards Important Notes: Values for 100 hPa from October 1967 are solely from Singapore (Changi). Values for 100 hPa before October 1967 are from Kiribati (Canton Island) when available. Detailed information about the radiosonde stations and their periods of operation is provided below. Additional Information: Access the data in other formats also published here: https://www.atmohub.kit.edu/english/807.php Detailed List of Radiosonde Stations: Station Name Location (Lat, Lon) Data Period Pressure Levels (hPa) Kiribati (Canton Island) -2.7667, -171.7167 1953 - 1967 (closed) Above 100 (until August 1967) 100 (until September 1967) Maldives (Gan Island) -0.6933, 73.1556 1967 - 1975 (closed) Above 100 (September 1967 to December 1975) Singapore (Payalebar) 1.3667, 103.9167 1975 - 1989 Above 100 (January 1976 to May 1989) Singapore Upper Air Observatory 1.3404, 103.8879 1989 - present 100 (October 1967 to May 1989), All levels from June 1989

Full text

1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 100 70 50 30 20 10 hPa -30 -30 -30 -30 -20 -20 -20 -20 -20 -20 -10 -10 -10 -10 -10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10 10 10 10 10 10 10 10 10 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 100 70 50 30 20 10 hPa -30 -30 -30 -30 -20 -20 -20 -20 -20 -20 -10 -10 -10 -10 -10 -10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10 10 10 10 10 10 10 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 100 70 50 30 20 10 hPa -30 -30 -30 -20 -20 -20 -20 -20 -10 -10 -10 -10 -10 -10 -10 -10 -10 0 0 0 0 0 0 0 0 10 10 10 10 10 20 0 0 0 0 0 0 0 0 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 100 70 50 30 20 10 hPa -30 -30 -30 -30 -20 -20 -20 -20 -10 -10 -10 -10 -10 -10 -10 -10 0 0 0 0 0 0 10 10 10 10 10 10 10 20 20 20 0 0 0 0 0 0 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 100 70 50 30 20 10 hPa -30 -30 -30 -30 -20 -20 -20 -20 -20 -10 -10 -10 -10 -10 -10 -10 -10 0 0 0 0 0 0 0 0 0 0 0 10 10 10 10 10 10 20 20 20 20 20 0 0 0 0 0 0 0 0 0 0 0 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 100 70 50 30 20 10 hPa -30 -30 -30 -30 -30 -30 -20 -20 -20 -20 -20 -20 -10 -10 -10 -10 -10 -10 -10 -10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10 10 10 10 10 10 10 10 10 10 20 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 100 70 50 30 20 10 hPa -30 -30 -30 -20 -20 -20 -20 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 -10 0 0 0 0 0 0 0 0 10 10 10 10 10 10 10 10 10 10 20 0 0 0 0 0 0 0 0 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 100 70 50 30 20 10 hPa -30 -30 -30 -30 -20 -20 -20 -10 -10 -10 -10 -10 0 0 0 0 0 0 10 10 10 10 10 10 10 0 0 0 0 0 0 18 22 26 30 km 18 22 26 30 km 18 22 26 30 km 18 22 26 30 km 18 22 26 30 km 18 22 26 30 km 18 22 26 30 km 18 22 26 30 km