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RISObserved Evidence of an Impact of the Antarctic Sea Ice Dipole on the Antarctic Oscillation
Publisher: American Meteorological Society
Abstract: lagged maximum covariance analysis (MCA) is applied to investigate the linear covariability between monthly sea ice concentration (SIC) and 500-mb geopotential height (Z500) in the Southern Hemisphere (SH). The dominant ...
Toward a Seasonally Ice-Covered Arctic Ocean: Scenarios from the IPCC AR4 Model Simulations
Publisher: American Meteorological Society
Abstract: The sea ice simulations by the Intergovernmental Panel on Climate Change Fourth Assessment Report (IPCC AR4) models for the climate of the twentieth century and for global warming scenarios have been synthesized. A large ...
Summer Arctic Atmospheric Circulation Response to Spring Eurasian Snow Cover and Its Possible Linkage to Accelerated Sea Ice Decrease
Publisher: American Meteorological Society
Abstract: nticyclonic circulation has intensified over the Arctic Ocean in summer during recent decades. However, the underlying mechanism is, as yet, not well understood. Here, it is shown that earlier spring Eurasian snowmelt leads ...
Arctic Sea Ice and Freshwater Changes Driven by the Atmospheric Leading Mode in a Coupled Sea Ice–Ocean Model
Publisher: American Meteorological Society
Abstract: Observational and modeling studies have indicated recent large changes of sea ice and hydrographic properties in the Arctic Ocean. However, the observational database is sufficiently sparse that the mechanisms responsible ...
Experimental Study on the Dynamic Characteristic of Soft Soil under Cyclic Loads
Publisher: American Society of Civil Engineers
Abstract: To study the change law of the dynamic characteristics of soft soil, particularly the inadequate bearing capacity of highway and railway roadbeds induced by traffic loads, the soft soil in Yingkou area was taken as the ...
Interannual Variability and Long-Term Changes of Atmospheric Circulation over the Chukchi and Beaufort Seas
Publisher: American Meteorological Society
Abstract: he Beaufort Sea high (BSH) plays an important role in forcing Arctic sea ice and the Beaufort Gyre. This study examines the variability and long-term trends of atmospheric circulation over the Chukchi and Beaufort Seas ...
The Sea Ice Extent Anomaly in the North Pacific and Its Impact on the East Asian Summer Monsoon Rainfall
Publisher: American Meteorological Society
Abstract: The relationship between extreme anomalies of the spring sea ice extent over the Bering Sea and the Sea of Okhotsk and rainfall variability in the east Asian summer monsoon was examined through an analysis of observed data ...
Impact of Daily Arctic Sea Ice Variability in CAM3.0 during Fall and Winter
Publisher: American Meteorological Society
Abstract: limate projections suggest that an ice-free summer Arctic Ocean is possible within several decades and with this comes the prospect of increased ship traffic and safety concerns. The daily sea ice concentration tendency ...
Climatology and Interannual Variability of Arctic Cyclone Activity: 1948–2002
Publisher: American Meteorological Society
Abstract: Arctic cyclone activity is investigated in the context of climate change and variability by using a modified automated cyclone identification and tracking algorithm, which differs from previously used algorithms by single ...
Intrinsic versus Forced Variation in Coupled Climate Model Simulations over the Arctic during the Twentieth Century
Publisher: American Meteorological Society
Abstract: There were two major multiyear, Arctic-wide (60°?90°N) warm anomalies (>0.7°C) in land surface air temperature (LSAT) during the twentieth century, between 1920 and 1950 and again at the end of the century after 1979. ...