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RISOrigins of Tropical Pacific Decadal Variability: Role of Stochastic Atmospheric Forcing from the South Pacific
Publisher: American Meteorological Society
Abstract: ased on the analysis of multicentury?millennium integrations of an atmospheric model coupled to the ocean with varying degrees, it is argued that ENSO-like decadal variability is primarily driven by stochastic atmospheric ...
Role of Stochastic Atmospheric Forcing from the South and North Pacific in Tropical Pacific Decadal Variability
Publisher: American Meteorological Society
Abstract: AbstractStochastic variability of internal atmospheric modes, known as teleconnection patterns, drives large-scale patterns of low-frequency SST variability in the extratropics. To investigate how the decadal component of ...
Asymmetry in the Duration of El Niño and La Niña
Publisher: American Meteorological Society
Abstract: El Niño and La Niña are not a simple mirror image, but exhibit significant differences in their spatial structure and seasonal evolution. In particular, sea surface temperature (SST) anomalies over the equatorial Pacific ...
Interaction of the Atlantic Equatorial Cold Tongue and the African Monsoon
Publisher: American Meteorological Society
Abstract: The seasonal cycle of equatorial Atlantic sea surface temperature (SST) is characterized by a rapid cooling from April to July, coinciding with the onset of the West African summer monsoon and followed by a slow warming ...
Some Overlooked Features of Tropical Atlantic Climate Leading to a New Niño-Like Phenomenon
Publisher: American Meteorological Society
Abstract: The Atlantic Niño, an equatorial zonal mode akin to the Pacific El Niño?Southern Oscillation (ENSO), is phase-locked to boreal summer when the equatorial easterly winds intensify and the thermocline shoals in the Gulf of ...
Observed Antarctic Interannual Climate Variability and Tropical Linkages
Publisher: American Meteorological Society
Abstract: his study reviews the mechanisms associated with Antarctic?tropical climate linkages and presents new analyses of the seasonality and spatial patterns of tropical climate signals in the Antarctic for the late 1950s to the ...
Asymmetric Modulation of El Niño and La Niña and the Linkage to Tropical Pacific Decadal Variability
Publisher: American Meteorological Society
Abstract: he El Niño-Southern Oscillation (ENSO) in a 1300-year preindustrial control simulation of the Community Climate System Model version 4 (CCSM4) exhibits distinct modulation in association with tropical Pacific decadal ...
Influences of Atlantic Climate Change on the Tropical Pacific via the Central American Isthmus
Publisher: American Meteorological Society
Abstract: Recent global coupled model experiments suggest that the atmospheric bridge across Central America is a key conduit for Atlantic climate change to affect the tropical Pacific. A high-resolution regional ocean?atmosphere ...
Decadal–Interdecadal Climate Variability over Antarctica and Linkages to the Tropics: Analysis of Ice Core, Instrumental, and Tropical Proxy Data
Publisher: American Meteorological Society
Abstract: he Antarctic continent contains the majority of the global ice volume and plays an important role in a changing climate. The nature and causes of Antarctic climate variability are, however, poorly understood beyond interannual ...
A Proposed Mechanism for the Asymmetric Duration of El Niño and La Niña
Publisher: American Meteorological Society
Abstract: l Niño and La Niña exhibit significant asymmetry not only in their spatial structure but also in their duration. Most El Niños terminate rapidly after maturing near the end of the calendar year, whereas many La Niñas persist ...