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A Predominant Reversal in the Relationship between the SAM and East Antarctic Temperatures during the Twenty-First Century
Publisher: American Meteorological Society
Abstract: he scientific literature portrays a temporally invariant spatial relationship between the phase of the southern annular mode (SAM) and the sign of surface air temperature (SAT) anomalies across Antarctica. However, here ...
Improved Middle Atmosphere Climate and Forecasts in the ECMWF Model through a Nonorographic Gravity Wave Drag Parameterization
Publisher: American Meteorological Society
Abstract: In model cycle 35r3 (Cy35r3) of the ECMWF Integrated Forecast System (IFS), the momentum deposition from small-scale nonorographic gravity waves is parameterized by the Scinocca scheme, which uses hydrostatic nonrotational ...
The Relationship between the Southern Hemisphere Annular Mode and Antarctic Peninsula Summer Temperatures: Analysis of a High-Resolution Model Climatology
Publisher: American Meteorological Society
Abstract: The large regional summer warming on the east coast of the northern Antarctic Peninsula (AP), which has taken place since the mid-1960s, has previously been proposed to be caused by a trend in the Southern Hemisphere Annular ...
The Influence of the Amundsen–Bellingshausen Seas Low on the Climate of West Antarctica and Its Representation in Coupled Climate Model Simulations
Publisher: American Meteorological Society
Abstract: n contrast to earlier studies, the authors describe the climatological deep low pressure system that exists over the South Pacific sector of the Southern Ocean, referred to as the Amundsen?Bellingshausen Seas low (ABSL), ...
Strong Dynamical Modulation of the Cooling of the Polar Stratosphere Associated with the Antarctic Ozone Hole
Publisher: American Meteorological Society
Abstract: model simulation forced by prescribed ozone depletion shows strong dynamical modulation of the springtime cooling of the polar stratosphere associated with the Antarctic ozone hole. The authors find that in late spring the ...
The Impact of a Changing Southern Hemisphere Annular Mode on Antarctic Peninsula Summer Temperatures
Publisher: American Meteorological Society
Abstract: Since the mid-1960s, rapid regional summer warming has occurred on the east coast of the northern Antarctic Peninsula, with near-surface temperatures increasing by more than 2°C. This warming has contributed significantly ...
Future Antarctic Climate: Storylines of Midlatitude Jet Strengthening and Shift Emergent from CMIP6
Publisher: American Meteorological Society
Possible Dynamical Mechanisms for Southern Hemisphere Climate Change due to the Ozone Hole
Publisher: American Meteorological Society
Abstract: he authors report a hypothesis for the dynamical mechanisms responsible for the strengthening of the Southern Hemisphere circumpolar winds from the lower stratosphere to the surface due to the ozone hole. A general circulation ...
Inhomogeneity of the Surface Air Temperature Record from Halley, Antarctica
Publisher: American Meteorological Society
Characteristics of Summer Airflow over the Antarctic Peninsula in Response to Recent Strengthening of Westerly Circumpolar Winds
Publisher: American Meteorological Society
Abstract: Summer near-surface temperatures over the northeast coast of the Antarctic Peninsula have increased by more than 2°C over the past 40 years, a temperature increase 3 times greater than that on the northwest coast. Recent ...