Northern hemisphere summer ozone variability observed by POAM II
نویسندگان
چکیده
منابع مشابه
Observed and Simulated Multidecadal Variability in the Northern Hemisphere
Analyses of proxy based reconstructions of surface temperatures during the past 330 years show the existence of a distinct oscillatory mode of variability with an approximate time scale of 70 years. This variability is also seen in instrumental records, although the oscillatory nature of the variability is dicult to assess due to the short length of the instrumental record. The spatial pattern...
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1 Large-scale variability in the Northern Hemisphere (NH) circulation can be 2 viewed in the context of three primary types of structures: 1) teleconnection patterns; 2) 3 a barotropic annular mode; and 3) a baroclinic annular mode. The barotropic annular 4 mode corresponds to the northern annular mode (NAM) and has been examined 5 extensively in previous research. Here we examine the spatial s...
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[1] While the Northern Hemisphere mean surface temperature has clearly warmed over the 20th century due in large part to increasing greenhouse gases, this warming has not been monotonic. The departures from steady warming on multidecadal timescales might be associated in part with radiative forcing, especially solar irradiance, volcanoes, and anthropogenic aerosols. It is also possible that int...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 1999
ISSN: 0094-8276
DOI: 10.1029/1999gl900118