Magazine article from our research archive:
|
|
The Contribution of the Interannual ENSO Cycle to the Spatial Pattern of Decadal ENSO-Like Variability*
- Article from:
-
Journal of Climate
- Article date:
-
June 15, 2005
- Author:
-
|
Copyright informationCopyright American Meteorological Society Jun 15, 2005. Provided by ProQuest LLC. (Hide copyright information)
|
ABSTRACT
A defining feature of Pacific decadal ENSO-like variability is the similarity between its spatial expression in sea surface temperature (SST) and the spatial structure of interannual ENSO variability. This similarity may indicate that the decadal variability is merely a long-term average over interannual ENSO variability. In contrast, subtle differences (namely the meridionally broadened tropical SST signature and emphasized midlatitude SST anomalies for the decadal ENSO-like pattern) may indicate that fundamentally different processes are responsible for generating variability on the decadal to interdecadal time scale. The present study attempts to reconcile the subtly different ...
Related newspaper, magazine, and journal articles:
|
Two modes of ENSO
Bulletin of the American Meteorological Society;
September 1, 2003 ;
374 words
......phase. The second mode is called "interannual ENSO," which propagates eastward. Its warm...Pacific. In the early 1990s, the "interannual ENSO" mode was in the positive (warm) phase...two modes. Larger amplitude of the "interannual ENSO" mode after the late 1970s favors...
|
|
Interannual (ENSO) and interdecadal (ENSO-like) variability in the...
Journal of Climate;
July 1, 1999 ;
700+ words
...Interannual (ENSO) and Interdecadal (ENSO-like...that are associated with decadal ENSO-like variability and compared...associated with the (interannual) ENSO cycle. Here the authors...Hemisphere associated with the decadal ENSO-like variability. though ...
|
|
Annual ENSO
Journal of Physical Oceanography;
August 1, 2003 ;
700+ words
......interaction: the annual ENSO mode and an "interannual ENSO" mode. The eastward-propagating interannual ENSO mode is an air-sea coupled mode, which...The increase in the amplitude of the interannual ENSO mode after the late 1970s favors the...
|
|
Observed Changes in the Lifetime and Amplitude of the Madden-Julian...
Journal of Climate;
June 1, 2007 ;
700+ words
...ABSTRACT The Madden-Julian oscillation (MJO) is analyzed using the reanalysis zonal wind- and satellite outgoing longwave radiation-based indices of Wheeler and Hendon for the 1974-2005 period. The average lifetime of the MJO events varies with season (36 days for events whose central date occurs
|
|
Pacific interannual and interdecadal equatorial variability in a 1000-yr...
Journal of Climate;
January 15, 2002 ;
700+ words
......filtered) variability closely resemble observations of interannual ENSO, and decadal ENSO-like variability. The amplitude of tropical SST anomalies...mechanism may be interpreted as the statement that an interannual ENSO event, once initiated, contains not only a mechanism...
|
|
Westerly Wind Bursts: ENSO's Tail Rather than the Dog?
Journal of Climate;
December 15, 2005 ;
700+ words
......of their short time scale, WWBs are normally considered part of a stochastic forcing of ENSO, completely external to the interannual ENSO variability. Recent observational studies, however, suggest that the occurrence and characteristics of WWBs may depend...
|
|
Tropical Pacific 1976-77 climate shift in a linear, wind-driven model
Journal of Physical Oceanography;
August 1, 2002 ;
700+ words
......basin from 1945 through 1992. An analysis technique designed to isolate the decadal/interdecadal scale variability from interannual ENSO variability was performed on the model's thermocline depth anomaly (TDA). It was found that the temporal and spatial patterns...
|
|
The Decadal ENSO Variability in a Hybrid Coupled Model
Journal of Climate;
March 15, 2004 ;
700+ words
......observations and shows fluctuations in the ENSO period and amplitude on decadal time scales. The spatial structure of the interannual ENSO variability in the HCM is similar to the observations, whereas on decadal time scales the spatial structure differs significantly...
|
|
Interdecadal changes in the ENSO-monsoon system
Journal of Climate;
August 1, 1999 ;
700+ words
......timescale. The annual-cycle (1 yr) variance time series of Nino3 SST and Indian rainfall is negatively correlated with the interannual ENSO signal. The 1-yr variance is larger during 1935-60, suggesting a negative correlation between annual-cycle variance and...
|
|
The Enhanced PNA-Like Climate Response to Pacific Interannual and Decadal...
Journal of Climate;
November 1, 2007 ;
700+ words
......North American climate response to positive and negative interannual ENSO variability exhibits a phase shift in its teleconnection...magnitude to that of ENSO (e.g., Hurrell 1996). The Pacific interannual ENSO and decadal-interdecadal ENSO-like (or PDO) variability...
|
|
Predictability of Tropical Pacific Decadal Variability in an Intermediate...
Journal of Climate;
July 15, 2004 ;
700+ words
......viable hypothesis. The delayed oscillator mechanism (Battisti 1988; Suarez and Schopf 1988), typically used to explain interannual ENSO, can produce variability at decadal periods (Chang et al. 1995; Knutson and Manabe 1998). Timmermann and Jin (2002) argue...
|
|
Rainfall trends in Brazil
Bulletin of the American Meteorological Society;
August 1, 2003 ;
511 words
......evidence that the rainfall shift found in southern Brazil may be related to the Antarctic Oscillation. It is well known that interannual ENSO variability affects rainfall over South America. In particular, during the El Nino phase, negative rainfall anomalies are...
|
|
Applications of a Multiple Linear Regression Model to the Analysis of...
Journal of the Atmospheric Sciences;
December 15, 2004 ;
700+ words
......effects of these interactions are often directed both from lower to higher frequencies and vice versa. For example, the interannual ENSO modulates the geographical locations where the intra-seasonal ISO produces high-amplitude convective anomalies over the...
|
See all results.
Or, try our
Advanced Search.
|