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RISHow Much Energy Is Transferred from the Winds to the Thermocline on ENSO Time Scales?
Publisher: American Meteorological Society
Abstract: The dynamics of El Niño?Southern Oscillation (ENSO) are studied in terms of the balance between energy input from the winds (via wind power) and changes in the storage of available potential energy in the tropical ocean. ...
Estimating the Diapycnal Transport Contribution to Warm Water Volume Variations in the Tropical Pacific Ocean
Publisher: American Meteorological Society
Abstract: Variations in the warm water volume (WWV) of the equatorial Pacific Ocean are considered a key element of the dynamics of the El Niño?Southern Oscillation (ENSO) phenomenon. WWV, a proxy for the upper-ocean heat content, ...
A Discussion of Flow Pathways in the Central and Eastern Equatorial Pacific
Publisher: American Meteorological Society
Abstract: An eddy-permitting global ocean model is used to interpret kinematics within the central and eastern equatorial Pacific Ocean, from 160°E to the coast of America. Because of high levels of variability in this region, ...
A Zonal Momentum Balance on Density Layers for the Central and Eastern Equatorial Pacific
Publisher: American Meteorological Society
Abstract: Brown et al. analyzed the kinematics of flow in the equatorial Pacific Ocean, along time-varying isopycnals in a three-dimensional eddy-permitting model. Here the dynamics of these flows is explored in the same model via ...
Nonlinear Effects of Tropical Instability Waves on the Equatorial Pacific Circulation
Publisher: American Meteorological Society
Abstract: In a numerical model of the equatorial Pacific Ocean, the ?20-day period tropical instability waves, excited in the eastern half of the domain, are found to damp the strong zonal mean currents. The waves generate large, ...
Climate Drift in the CMIP5 Models
Publisher: American Meteorological Society
Abstract: limate models often exhibit spurious long-term changes independent of either internal variability or changes to external forcing. Such changes, referred to as model ?drift,? may distort the estimate of forced change in ...
An Investigation of the Links between ENSO Flavors and Rainfall Processes in Southeastern Australia
Publisher: American Meteorological Society
Abstract: The causes of rainfall variations in southeastern Australia associated with three key El Niño years (1982, 1997, and 2002) are explored. Whereas 1982 and 2002 were exceptionally dry years, 1997 had near-average rainfall. ...
Warming Patterns Affect El Niño Diversity in CMIP5 and CMIP6 Models
Publisher: American Meteorological Society
Abstract: Given the consequences and global significance of El Niño–Southern Oscillation (ENSO) events it is essential to understand the representation of El Niño diversity in climate models for the present day and the future. In ...
Reassessing Conceptual Models of ENSO
Publisher: American Meteorological Society
Abstract: he complex nature of the El Niño?Southern Oscillation (ENSO) is often simplified through the use of conceptual models, each of which offers a different perspective on the ocean?atmosphere feedbacks underpinning the ENSO ...
Climate Drift in the CMIP3 Models
Publisher: American Meteorological Society
Abstract: ven in the absence of external forcing, climate models often exhibit long-term trends that cannot be attributed to natural variability. This so-called climate drift arises for various reasons including the following: ...