Station location: 68°35'S, 77°58'E, Broad Peninsula, Prydz Bay, Ingrid Christiansen Coast, Princess Elizabeth Land, East Antarctica.
WMO identification: 89571
Data in black are derived from the READER dataset and are calculated from 6-hourly synoptic data. Data after 2005, shown in red, have been provided by Doug Shepherd and Ian Barnes-Keoghan of the Australian Bureau of Meteorology and are based on 3-hourly synoptic data. These values will be adjusted to be compatible with the READER data at some point in the future; however, any differences will be minimal.
Go straight to the data.(i) Annual, seasonal and monthly temperature statistics for Davis
With regard to summer (DJF) the year refers to the December.
Annual/Season/Month | Mean (°C) | σ (°C) | Min. (°C) | q0.25 (°C) | q0.75 (°C) | Max. (°C) | Period | n |
---|---|---|---|---|---|---|---|---|
Calendar year | −10.1 | 0.9 | −12.6 | −10.5 | −9.6 | −8.2 | 1958-63, 1970-2011 | 48 |
Autumn | −12.2 | 1.7 | −15.4 | −13.5 | −11.0 | −9.2 | 1957-64, 1969-2012 | 52 |
Winter | −16.7 | 1.8 | −21.0 | −17.9 | −15.3 | −12.3 | 1957-64, 1969-2012 | 52 |
Spring | −11.0 | 1.2 | −14.4 | −11.7 | −10.1 | −8.3 | 1957-63, 1969-2012 | 51 |
Summer | −0.5 | 0.7 | −1.9 | −1.0 | −0.1 | +1.2 | 1957-63, 1969-2011 | 50 |
January | +0.9 | 1.0 | −1.4 | +0.1 | +1.6 | +3.1 | 1958-64, 1970-2012 | 50 |
February | −2.4 | 1.1 | −4.8 | −3.1 | −2.0 | +1.2 | 1958-64, 1970-2012 | 50 |
March | −8.0 | 1.5 | −12.3 | −8.9 | −6.9 | −5.2 | 1957-64, 1969-2012 | 52 |
April | −13.0 | 2.5 | −20.8 | −14.3 | −11.3 | −8.4 | 1957-64, 1969-2012 | 52 |
May | −15.6 | 2.8 | −20.6 | −17.5 | −13.4 | −9.7 | 1957-64, 1969-2012 | 52 |
June | −15.5 | 2.2 | −22.4 | −16.9 | −14.1 | −11.0 | 1957-64, 1969-2012 | 52 |
July | −17.3 | 3.3 | −25.3 | −19.5 | −15.6 | −7.0 | 1957-64, 1969-2012 | 52 |
August | −17.3 | 3.0 | −25.2 | −19.3 | −15.0 | −12.1 | 1957-64, 1969-2012 | 52 |
September | −16.2 | 2.7 | −23.1 | −17.9 | −14.4 | −11.1 | 1957-64, 1969-2012 | 52 |
October | −12.0 | 1.9 | −16.7 | −12.9 | −11.1 | −7.6 | 1957-64, 1969-2012 | 52 |
November | −4.8 | 1.3 | −7.7 | −5.5 | −4.1 | −2.3 | 1957-63, 1969-2012 | 51 |
December | +0.1 | 1.1 | −2.0 | −0.7 | +0.8 | +2.7 | 1957-63, 1969-2011 | 50
|
(ii) Annual, seasonal and monthly trends in the Davis surface temperature data
The trends listed below include 95% confidence intervals. The methodology is based upon:
Santer B.D., T.M.L. Wigley, J.S. Boyle, D. J. Gaffen, J.J. Hnilo, D. Nychka, D.E. Parker and K.E. Taylor. 2000: Statistical significance of trends and trend differences in layer-average temperature time series. Journal of Geophysical Research, 105, 7337-7356.
Briefly, an effective sample size is calculated based on the lag-1 autocorrelation coefficient of the regression residuals, This effective sample size is used for the computation of the standard error and in indexing the critical values of the Student''s t distribution.
The significance level of the trend is given if it is less than 10%, 5% or 1%. With regard to summer (DJF) the year refers to the December.
Annual/Season/Month | Annual trend (°C a−1) | Significance (%) | Period | n |
---|---|---|---|---|
Calendar year | +0.0096 ± 0.0150 | - | 1958-63, 1970-2011 | 48 |
Autumn | +0.0027 ± 0.0286 | - | 1957-64, 1969-2012 | 52 |
Winter | +0.0046 ± 0.0285 | - | 1957-64, 1969-2012 | 52 |
Spring | +0.0155 ± 0.0220 | - | 1957-63, 1969-2012 | 51 |
Summer | +0.0072 ± 0.0145 | - | 1957-63, 1969-2011 | 50 |
January | +0.0091 ± 0.0238 | - | 1958-64, 1970-2012 | 50 |
February | +0.0082 ± 0.0183 | - | 1958-64, 1970-2012 | 50 |
March | +0.0207 ± 0.0209 | 10 | 1957-64, 1969-2012 | 52 |
April | −0.0056 ± 0.0451 | - | 1957-64, 1969-2012 | 52 |
May | −0.0072 ± 0.0420 | - | 1957-64, 1969-2012 | 52 |
June | +0.0066 ± 0.0376 | - | 1957-64, 1969-2012 | 52 |
July | +0.0090 ± 0.0515 | - | 1957-64, 1969-2012 | 52 |
August | −0.0020 ± 0.0438 | - | 1957-64, 1969-2012 | 52 |
September | +0.0320 ± 0.0428 | - | 1957-64, 1969-2012 | 52 |
October | +0.0024 ± 0.0334 | - | 1957-64, 1969-2012 | 52 |
November | +0.0198 ± 0.0241 | - | 1957-63, 1969-2012 | 51 |
December | +0.0042 ± 0.0196 | - | 1957-63, 1969-2011 | 50
|
Calendar year Autumn (MAM) Winter (JJA) Spring (SON) Summer (DJF)
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN 1957 -8.0 -9.5 -14.4 -11.8 -17.3 -15.2 -16.1 -8.5 -6.3 0.0 1958 0.3 -3.7 -7.4 -11.9 -13.5 -16.8 -14.4 -18.9 -18.3 -13.1 -6.1 0.0 -10.3 1959 -1.4 -3.7 -5.2 -11.6 -13.0 -17.0 -17.4 -16.9 -19.6 -11.0 -5.9 -0.2 -10.2 1960 -0.1 -2.3 -11.1 -14.6 -16.9 -19.6 -22.7 -17.5 -16.2 -12.4 -4.3 -0.9 -11.5 1961 0.6 -0.3 -6.4 -9.6 -11.6 -15.7 -13.1 -15.6 -12.0 -12.3 -4.7 -1.4 -8.5 1962 -1.4 -2.4 -8.8 -14.8 -19.1 -16.1 -19.4 -21.5 -17.6 -12.3 -5.2 -0.7 -11.6 1963 0.5 -4.3 -9.5 -14.1 -16.3 -14.5 -17.2 -13.5 -15.0 -13.9 -5.0 -0.7 -10.3 1964 0.3 -1.5 -9.1 -16.5 -18.1 -13.5 -17.2 -15.0 -20.9 -12.4 1965 1966 1967 1968 1969 -7.6 -12.3 -17.0 -15.2 -18.8 -22.6 -17.1 -12.0 -5.5 1.2 1970 0.4 -3.3 -6.1 -12.0 -11.3 -16.9 -17.5 -17.0 -14.9 -12.7 -4.9 1.0 -9.6 1971 1.7 -2.0 -8.8 -14.5 -13.1 -18.3 -16.0 -14.6 -14.5 -10.4 -5.3 1.4 -9.5 1972 3.0 -2.0 -6.9 -11.3 -19.2 -13.7 -18.6 -12.4 -16.7 -15.0 -5.0 -1.0 -9.9 1973 0.9 -3.0 -10.9 -13.9 -14.4 -12.7 -20.9 -18.0 -12.0 -10.1 -2.8 -1.1 -9.9 1974 2.2 -2.5 -8.8 -12.3 -16.4 -13.0 -15.3 -14.1 -18.3 -7.6 -2.8 2.1 -8.9 1975 2.6 -2.9 -9.6 -14.3 -11.7 -14.3 -18.2 -19.8 -18.3 -12.1 -3.2 -0.1 -10.2 1976 1.7 -2.5 -9.8 -13.3 -20.0 -14.7 -16.1 -21.1 -18.3 -9.5 -4.7 1.6 -10.6 1977 3.1 -2.1 -9.8 -13.1 -14.7 -15.2 -17.6 -15.9 -21.2 -14.8 -7.2 -0.5 -10.8 1978 -0.2 -2.4 -6.4 -11.2 -15.0 -13.3 -16.2 -22.2 -17.3 -16.7 -4.6 0.3 -10.4 1979 0.1 -3.3 -9.2 -12.2 -15.6 -17.8 -20.5 -17.8 -14.8 -12.5 -4.9 0.8 -10.6 1980 0.7 -3.4 -6.2 -10.1 -19.6 -19.9 -11.9 -17.3 -13.7 -11.7 -2.3 0.2 -9.6 1981 0.7 -3.3 -7.8 -17.2 -16.2 -16.2 -16.0 -12.1 -14.8 -15.0 -4.9 -0.6 -10.3 1982 0.2 -2.5 -12.3 -18.1 -15.9 -22.4 -15.5 -25.2 -23.1 -12.6 -4.5 1.0 -12.6 1983 1.7 -2.0 -8.4 -10.6 -13.1 -15.0 -20.7 -16.3 -13.1 -13.6 -7.7 -1.2 -10.0 1984 2.2 -2.6 -8.0 -10.9 -14.3 -17.5 -18.6 -15.9 -14.7 -15.5 -5.5 1.2 -10.0 1985 1.4 -3.7 -7.6 -11.4 -15.1 -13.6 -25.3 -18.1 -17.3 -12.9 -6.1 -1.3 -10.9 1986 0.0 1.2 -7.0 -12.4 -11.9 -18.5 -18.6 -18.6 -15.1 -11.3 -5.9 -0.8 -9.9 1987 1.4 -2.3 -9.0 -14.3 -17.8 -14.9 -13.5 -19.4 -18.9 -11.7 -5.2 0.4 -10.4 1988 1.0 -3.1 -5.6 -12.6 -11.0 -12.3 -18.2 -15.0 -13.7 -8.7 -5.5 -1.4 -8.8 1989 0.5 -3.0 -10.8 -14.9 -19.9 -14.5 -18.5 -13.6 -11.3 -9.0 -7.1 1.3 -10.1 1990 1.4 -2.9 -8.5 -9.1 -12.4 -15.8 -16.5 -15.8 -17.5 -12.3 -4.0 0.7 -9.4 1991 -0.5 -1.5 -6.6 -8.4 -14.0 -11.4 -11.1 -14.3 -17.4 -11.4 -4.2 2.7 -8.2 1992 1.7 -0.8 -7.5 -17.8 -18.0 -17.3 -20.6 -18.6 -20.3 -11.3 -4.4 -1.5 -11.4 1993 1.5 -2.2 -8.2 -14.2 -20.6 -18.2 -22.2 -21.8 -20.0 -12.7 -5.8 -1.2 -12.1 1994 -0.2 -2.8 -8.7 -14.3 -19.6 -11.0 -15.4 -20.0 -11.8 -10.1 -4.6 -0.4 -9.9 1995 -0.1 -2.9 -7.0 -13.9 -16.3 -16.2 -7.0 -17.3 -16.4 -13.5 -4.1 -0.2 -9.6 1996 1.4 -1.4 -8.1 -12.1 -17.5 -14.3 -17.4 -13.3 -13.4 -11.9 -3.5 0.0 -9.3 1997 0.2 -2.1 -6.0 -15.1 -17.0 -14.5 -16.4 -18.7 -18.2 -12.0 -4.6 0.8 -10.3 1998 0.1 -2.2 -9.4 -20.8 -16.1 -15.7 -19.2 -12.8 -16.8 -12.7 -3.8 0.3 -10.8 1999 0.0 -2.4 -9.0 -14.3 -17.8 -14.0 -19.5 -16.9 -17.3 -10.1 -7.4 -2.0 -10.9 2000 -0.6 -3.2 -7.3 -9.6 -17.3 -15.7 -15.7 -14.7 -13.7 -15.2 -2.7 0.4 -9.6 2001 1.3 -2.3 -7.3 -13.1 -13.2 -16.9 -16.2 -19.8 -16.3 -11.3 -3.7 -0.6 -9.9 2002 1.0 -3.1 -6.1 -10.8 -10.6 -13.3 -14.7 -19.1 -15.1 -9.7 -4.2 -0.6 -8.9 2003 1.6 0.0 -6.3 -13.0 -17.4 -14.4 -19.4 -18.2 -14.2 -11.6 -4.6 1.1 -9.7 2004 1.7 -0.7 -7.7 -13.4 -13.4 -18.1 -21.1 -15.2 -17.1 -10.4 -3.7 1.9 -9.8 2005 2.0 -2.8 -6.2 -15.6 -17.2 -15.1 -20.4 -19.6 -15.1 -11.2 -4.7 2.5 -10.3 2006 0.9 -3.1 -7.0 -8.7 -19.5 -14.9 -20.3 -14.6 -15.2 -12.8 -3.9 -0.2 -9.9 2007 1.1 -1.5 -7.7 -10.7 -9.7 -13.9 -11.4 -13.7 -15.6 -11.9 -2.6 -0.9 -8.2 2008 -0.5 -2.6 -8.0 -12.0 -13.4 -16.9 -15.8 -22.6 -20.6 -14.1 -4.4 0.5 -10.9 2009 0.8 -1.9 -7.8 -13.5 -13.4 -15.0 -14.2 -19.0 -13.2 -11.9 -4.4 -0.5 -9.5 2010 2.3 -1.9 -6.8 -15.3 -15.6 -14.1 -21.2 -19.6 -11.1 -12.3 -6.6 -0.3 -10.2 2011 1.2 -4.8 -6.9 -13.0 -16.5 -18.3 -12.3 -15.2 -14.3 -14.2 -4.2 -0.5 -9.9 2012 0.6 -2.4 -8.6 -14.4 -17.1 -15.2 -20.5 -15.2 -16.0 -9.7 -3.1
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