Earth, Planets and Space

Table 1 Some of the atmospheric and solar parameters during the years 2005 to 2013

From: Vertical coupling of atmospheres: dependence on strength of sudden stratospheric warming and solar activity

	Year
	2005	2006	2007	2008	2009	2010	2011	2012	2013
∆T_SSW	40	60	40	60	60	40	35	30	45
T _{peak_SSW}	240	260	245	268	265	237	235	245	248
U _east	+10	−25	−8	−15	−35	−6	+25	+5	−12
SSW str.	Minor	Major	Major	Major	Major	Major	Minor	Minor	Major
<SSN>	30	10	14	3	1	16	24	46	51

∆T_SSW, stratospheric temperature anomaly at 90° N; T_{peak_SSW}, peak stratospheric temperature during SSW at 90° N; U_east, peak eastward zonal mean stratospheric wind at 60° N during SSW; SSW str., SSW strength; <SSN>, average SSN.

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