ABSTRACT From 1950 to 1987 a strong relationship existed between the El Nino Southern Oscillation (ENSO) and
HadCRUT4 global average temperature anomaly, interrupted occasionally by volcanic eruptions.
The impact of these changes in cloud cover can account for the variations in
HadCRUT4 global average temperature anomalies and the divergence between land and sea temperatures.
Not exact matches
Figure 2: The data (green) are the
average of the NASA GISS, NOAA NCDC, and
HadCRUT4 monthly
global surface
temperature anomaly datasets from January 1970 through November 2012, with linear trends for the short time periods Jan 1970 to Oct 1977, Apr 1977 to Dec 1986, Sep 1987 to Nov 1996, Jun 1997 to Dec 2002, and Nov 2002 to Nov 2012 (blue), and also showing the far more reliable linear trend for the full time period (red).
In 1956, the
average global surface
temperature anomaly in the three datasets (NASA GISS, NOAA NCDC, and
HadCRUT4) was -0.21 °C.
Figure 2: The data (green) are the
average of the NASA GISS, NOAA NCDC, and
HadCRUT4 monthly
global surface
temperature anomaly datasets from January 1970 through November 2012, with linear trends for the short time periods Jan 1970 to Oct 1977, Apr 1977 to Dec 1986, Sep 1987 to Nov 1996, Jun 1997 to Dec 2002, and Nov 2002 to Nov 2012 (blue), and also showing the far more reliable linear trend for the full time period (red).
Note: Excel used to calculate the 3 - year absolute
temperature and CO2 level
averages; also used to calculate the moving 36 - month and 360 - month per century acceleration / deceleration trends (Excel slope function) as depicted on chart; the absolute temps calculated using the
HadCRUT4 month
anomalies and NOAA's monthly
global mean
temperature estimates; and, the 3 - year
average beginning value for CO2 was offset to a zero starting place.
http://www.skepticalscience.com/graphics.php?g=47 The data (green) are the
average of the NASA GISS, NOAA NCDC, and
HadCRUT4 monthly
global surface
temperature anomaly datasets from January 1970 through November 2012, with linear trends for the short time periods Jan 1970 to Oct 1977, Apr 1977 to Dec 1986, Sep 1987 to Nov 1996, Jun 1997 to Dec 2002, and Nov 2002 to Nov 2012 (blue), and also showing the far more reliable linear trend for the full time period (red
That is, if a 5 - deg latitude by 5 - deg longitude grid does not have a
temperature anomaly value in a given month, it is not included in the
global average value of
HADCRUT4.
Average of NASA GISS, NOAA NCDC, and
HadCRUT4 monthly
global surface
temperature anomalies from January 1970 through November 2012 (green) with linear trends applied to the timeframes Jan»70 - Oct» 77, Apr»77 - Dec» 86, Sep»87 - Nov» 96, Jun»97 - Dec» 02, and Nov»02 - Nov» 12.
Figure 6 shows the
global land surface air
temperature plus sea surface
temperature anomalies (
average of GISS LOTI,
HADCRUT4 and NCDC datasets, like The Escalator) before, during and after the 1997/98 El Niño.
Average of NASA GISS, NOAA NCDC, and
HadCRUT4 monthly
global surface
temperature anomalies from January 1970 through November 2012 (green) with linear trends applied to the timeframes Jan ’70 — Oct» 77, Apr ’77 — Dec» 86, Sep ’87 — Nov» 96, Jun ’97 — Dec» 02, and Nov ’02 — Nov» 12.
Global surface
temperature (
anomaly from 1960 - 1990
average) reconstructions for the past 9000 years (Marcott et al. 2013), for the past 2,000 years (PAGES 2k), and observed for the past 150 yrs (Instrumental data from
HadCRUT4) and the last 30 years (star).