Low-Pass Filtering, Heat Flux, and Atlantic Multidecadal Variability

@article{Cane2017LowPassFH,
  title={Low-Pass Filtering, Heat Flux, and Atlantic Multidecadal Variability},
  author={Mark A. Cane and Amy C. Clement and Lisa N. Murphy and Katinka Bellomo},
  journal={Journal of Climate},
  year={2017},
  volume={30},
  pages={7529-7553}
}
AbstarctIn this model study the authors explore the possibility that the internal component of the Atlantic multidecadal oscillation (AMO) sea surface temperature (SST) signal is indistinguishable from the response to white noise forcing from the atmosphere and ocean. Here, complex models are compared without externally varying forcing with a one-dimensional noise-driven model for SST. General analytic expressions are obtained for both unfiltered and low-pass filtered lead–lag correlations. It… 

Figures and Tables from this paper

Interrelationships of the North Atlantic multidecadal climate variability characteristics
  • R. V. Bekryaev
  • Environmental Science
    Russian Journal of Earth Sciences
  • 2019
The North Atlantic is one of the key regions, where low-frequency climate variability is formed. However, despite numerous studies related to this topic, some issues still remains unsolved. One of
Variable External Forcing Obscures the Weak Relationship between the NAO and North Atlantic Multidecadal SST Variability
North Atlantic sea surface temperatures (SST) exhibit a lagged response to the North Atlantic Oscillation (NAO) in both models and observations, which has previously been attributed to changes in
Modeled and Observed Multidecadal Variability in the North Atlantic Jet Stream and Its Connection to Sea Surface Temperatures
Multidecadal variability in the North Atlantic jet stream in general circulation models (GCMs) is compared with that in reanalysis products of the twentieth century. It is found that almost all
The Internal Generation of the Atlantic Ocean Interdecadal Variability
Numerical simulations of a realistic ocean general circulation model forced by prescribed surface fluxes are used to study the origin and structure of intrinsic interdecadal variability of the
Investigating the Roles of External Forcing and Ocean Circulation on the Atlantic Multidecadal SST Variability in a Large Ensemble Climate Model Hierarchy
This paper attempts to enhance our understanding of the causes of Atlantic Multidecadal Variability, the AMV. Following the literature, we define the AMV as the SST averaged over the North Atlantic
Ocean–Atmosphere Dynamical Coupling Fundamental to the Atlantic Multidecadal Oscillation
The North Atlantic has shown large multidecadal temperature shifts during the twentieth century. There is ongoing debate about whether this variability arises primarily through the influence of
Ocean-Atmosphere Dynamical Coupling Fundamental to the Atlantic Multidecadal Oscillation
The North Atlantic has shown large multidecadal temperature shifts during the 20th century. There is ongoing debate about whether this variability arises primarily through the influence of
On the persistence and coherence of subpolar sea surface temperature and salinity anomalies associated with the Atlantic multidecadal variability
This study identifies key features associated with the Atlantic multidecadal variability (AMV) in both observations and a fully coupled climate model, e.g., decadal persistence of monthly mean
Key Role of Internal Ocean Dynamics in Atlantic Multidecadal Variability During the Last Half Century
This study presents multiple lines of evidence from observations and model simulations that support a key role for ocean dynamics, rather than external forcings, in Atlantic multidecadal variability
Historical forcings as main drivers of the Atlantic multidecadal variability in the CESM large ensemble
Previous studies suggest that internal variability, in particular the Atlantic Meridional Overturning Circulation (AMOC), drives the Atlantic Multidecadal Oscillation (AMV), while external radiative
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 55 REFERENCES
Stochastic climate models, part II. Application to sea-surface temperature anomalies and thermocline variability
The concept of stochastic climate models developed in Part I of this series (Hasselmann, 1976) is applied to the investigation of the low frequency variability of the upper ocean. It is shown that
The signature of low‐frequency oceanic forcing in the Atlantic Multidecadal Oscillation
The Atlantic Multidecadal Oscillation (AMO) significantly influences the climate of the surrounding continents and has previously been attributed to variations in the Atlantic Meridional Overturning
On the interpretation of AGCMs response to prescribed time‐varying SST anomalies
Recently, Bretherton and Battisti (1999) have presented an interesting interpretation of ensemble experiments with atmospheric general circulation models (AGCMs) forced by observed sea surface
North Atlantic Ocean control on surface heat flux on multidecadal timescales
TLDR
Observational evidence is provided that in the mid-latitude North Atlantic and on timescales longer than 10 years, surface turbulent heat fluxes are indeed driven by the ocean and may force the atmosphere, whereas on shorter timescale the converse is true, thereby confirming the Bjerknes conjecture.
Atlantic Multidecadal Variability in a model with an improved North Atlantic Current
We examine the simulated Atlantic Multidecadal Variability (AMV) in a model that includes a correction for a long‐standing problem with climate models, namely, the misplacement of the North Atlantic
Air–Sea Feedback in the North Atlantic and Surface Boundary Conditions for Ocean Models
Extratropical sea surface temperature (SST) and surface turbulent heat flux monthly anomalies in the central and eastern part of the North Atlantic are considered for the period 1952‐92 on a 5 83 58
The Atlantic Multidecadal Oscillation without a role for ocean circulation
TLDR
The results suggest that the AMO is the response to stochastic forcing from the mid-latitude atmospheric circulation, with thermal coupling playing a role in the tropics.
Observed Decadal North Atlantic Tripole SST Variability. Part I: Weather Noise Forcing and Coupled Response
AbstractThe mechanisms responsible for the decadal variability of the tripole mode of North Atlantic SST during the latter half of the twentieth century are diagnosed using a new technique. The SST
Historical forcings as main drivers of the Atlantic multidecadal variability in the CESM large ensemble
Previous studies suggest that internal variability, in particular the Atlantic Meridional Overturning Circulation (AMOC), drives the Atlantic Multidecadal Oscillation (AMV), while external radiative
Observations, inferences, and mechanisms of the Atlantic Meridional Overturning Circulation: A review
This is a review about the Atlantic Meridional Overturning Circulation (AMOC), its mean structure, temporal variability, controlling mechanisms, and role in the coupled climate system. The AMOC plays
...
1
2
3
4
5
...