Autumn Sea Ice Cover, Winter Northern Hemisphere Annular Mode, and Winter Precipitation in Eurasia
نویسندگان
چکیده
منابع مشابه
Importance of autumn Arctic sea ice to northern winter snowfall.
In their contribution to PNAS, Liu et al. (1) suggested that the recent decline of Arctic sea ice has played a critical role in recent cold and snowy winters in the Northern Hemisphere (NH). This study is very interesting, but we believe it deserves several clarifications. First, in 2010, Wu et al. (2) discovered the importance of autumn Arctic sea ice in triggering regional cold extremes; for ...
متن کاملCan the Southern Hemisphere annular mode affect China winter monsoon?
[1] Many previous studies suggested that the anomalous Northern Hemisphere annular mode (NAM) and associated low boundary forcing (e.g., snow cover) greatly influence the China winter monsoon (CWM) variability on interannual to inter-decadal timescales. In this article, it is found that the Southern Hemisphere annular mode (SAM) also well correlates with the two observed CWM major modes, which ...
متن کاملVariability of the Northern Annular Mode’s signature in winter sea ice concentration
Krahmann & Visbeck 2003: Polar Research 22(1), 51–57 The Northern Annular Mode (NAM) is, like the closely related North Atlantic Oscillation (NAO) (Visbeck et al. 2001; Visbeck et al. 2003), a large-scale pattern of atmospheric variability in the northern hemisphere (Thompson & Wallace 1998). It represents substantial variations of the northern hemisphere midand high latitude atmos pheric circu...
متن کاملSkewness modes in the Northern Hemisphere winter
The probability distribution of daily Northern Hemisphere streamfunction fluctuations at 500 hPa in winter is skewed at most locations. Large positive anomalies are more likely north of 50N with maximum values of the skewness in the North Pacific and North Atlantic region. In this study we develop two novel methodologies in order to diagnose the underlying circulation structures associated with...
متن کاملArctic sea ice, Eurasia snow, and extreme winter haze in China
The East China Plains (ECP) region experienced the worst haze pollution on record for January in 2013. We show that the unprecedented haze event is due to the extremely poor ventilation conditions, which had not been seen in the preceding three decades. Statistical analysis suggests that the extremely poor ventilation conditions are linked to Arctic sea ice loss in the preceding autumn and exte...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Climate
سال: 2012
ISSN: 0894-8755,1520-0442
DOI: 10.1175/jcli-d-12-00380.1