Temperature Cycles in North America, Greenland and the Arctic, Relationship to Multidecadal Ocean Cycles and Solar Trends
The Atlantic Multidecadal Oscillation
Download 2.58 Mb.
|
| The Atlantic Multidecadal Oscillation
Like the Pacific, the Atlantic undergoes decadal scale changes in ocean temperatures with a period that averages 60 -70 years or so. It can be seen to extend back to at least the 1850s in figure 7. Both Delworth and Mann (2000) and Gray etal. (2004) showed proxy evidence of its existence at least back four centuries.
The AMO turned positive in 1995. When it is positive it favors more Atlantic hurricane activity and often more high latitude blocking events in winters. For temperatures though, the net result on an annual basis though is for general warmth, statistically significant over land areas of the Northern Hemisphere as seen in the correlation chart from NOAA CDC in figure 8.
Directory: images -> uploads uploads -> M. Sc. (Automated control systems), Kazakhstan Technical University, June 1978, Alma-Ata, ussr uploads -> The Real Facts About Climate Change uploads -> Holy family primary and nursery school standards action plan uploads -> Fellowship Application ’16-‘17 uploads -> U. S. Department of Transportation uploads -> Procedures manual uploads -> Placarding procedures manual uploads -> European aviation safety agency uploads -> Diary date: Afternoon of Tuesday 13th September 2011 (Final timings tbc but approx 30 pm) Developments at Airbus, Flintshire, the largest manufacturing facility in the uk Download 2.58 Mb. Share with your friends:
|
