ENSO-like Interdecadal Variability: 1900–93

Zhang, Yuan; Wallace, John M.; Battisti, David S.

doi:10.1175/1520-0442(1997)010<1004:eliv>2.0.co;2

Cited by 2,198 publications

(1,608 citation statements)

References 38 publications

Supporting

112

Mentioning

1,428

Contrasting

Unclassified

Order By: Relevance

“…The warm signals cover large areas in the tropical eastern Pacific, part of the western Pacific, and most of the Indian Ocean, while two cold pools are located in the extratropical Pacific in both the hemispheres (Figure 10(a)). This pattern seems to be more connected with the ENSO-like interdecadal SST signal ( Zhang et al, 1997). The correlations are very high for the tropical eastern Pacific and eastern North Pacific, with absolute correlation coefficients larger than 0.8.…”

Section: Interdecadal Timescalesmentioning

confidence: 87%

Variabilities of the spring river runoff system in East China and their relations to precipitation and sea surface temperature

Chen

Wang

Xue

et al. 2008

Intl Journal of Climatology

View full text Add to dashboard Cite

ABSTRACT:The annual cycle and variabilities of the spring river runoff in East China (EC) at the continental scale and their relationship with precipitation, sea surface temperature (SST), and El Niño-Southern Oscillation (ENSO) are investigated. Monthly mean data from 72 runoff stations and 160 precipitation stations in EC, covering a period between 1951 and 1983, are used for this study. The seasonal evolution of runoff depth is generally consistent with that of the rainfall but has more regional characteristics. The dominant spatial patterns and temporal variations of spring runoff and precipitation are studied with the empirical orthogonal function (EOF) analysis. The leading EOFs of spring runoff and precipitation show the intensity of runoff and precipitation in South China and are highly correlated with each other, indicating a direct response of runoff to precipitation, which is different from the summer situation. Statistic analysis suggests that the evolution of ENSO event may exert a strong influence on these two modes. The second EOFs of runoff and precipitation present a north-south oscillation in EC with Nanling Mountain as the boundary and are also well correlated. These modes are highly related to the distribution of topography and may not be influenced by the ENSO. The third EOFs exhibit east-west oscillations in EC in both runoff and precipitation. The interdecadal relationship between spring precipitation/runoff and SST is further studied by singular value decomposition (SVD) analysis. The results indicate that the first coupled mode is dominant with the associated SST anomalies as an ENSO-like interdecadal SST signal and indicates pronounced warming (SST) and wetting (runoff) trends in North China after the mid-1970s, consistent with the observed trends of SST and runoff. The second coupled mode links the subtropical SST to the main spring runoff EOF mode in South China.

show abstract

Section: Interdecadal Timescalesmentioning

confidence: 87%

Variabilities of the spring river runoff system in East China and their relations to precipitation and sea surface temperature

Chen

Wang

Xue

et al. 2008

Intl Journal of Climatology

View full text Add to dashboard Cite

show abstract

“…• variability of El Niño-southern oscillation (ENSO) teleconnections (Elliot and Angell, 1988;Zhang et al, 1997;Kruger, 1999;McCabe and Dettinger, 1999;Power et al, 1999a;Mason, 2001); • the Pacific decadal oscillation (PDO; Mantua et al, 1997;Barlow et al, 2001; • variability of North Atlantic oscillation (NAO) teleconnections (Hurrell, 1995);…”

Section: Dmdos In Precipitation and Runoff Have Been Linked Tomentioning

confidence: 99%

Global analysis of runs of annual precipitation and runoff equal to or below the median: run length

Peel

Pegram

McMahon

2004

Intl Journal of Climatology

View full text Add to dashboard Cite

The investigation of fluctuations of wet and dry years has a long history in the climatology and hydrology literature. In this, the first of two papers investigating runs of consecutive dry years, the lengths (persistence) of dry runs are investigated. In the second paper the magnitude/intensity and severity (length × magnitude) of dry runs will be investigated. Consecutive dry years are associated with drought, which is a significant physical and economic phenomenon that imposes great stress on ecosystems and societies. Run lengths of consecutive years equal to or below the median were analysed for 3863 precipitation and 1236 runoff stations from around the world. Run lengths were found to be similar across all continents and Köppen climate zones, expect for tropical and arid North Africa (Sahel), which showed a distinct bias toward longer run lengths than any other region of the world. Generally, the run length observed in annual runoff was found to be similar to that observed in annual precipitation for the same location. Both annual precipitation and runoff data were found to be well described by the lag-one autoregressive (AR(1)) model or by white noise. The influence of the El Niño-southern oscillation on run lengths was not observed to be significant. The presence of decadal and multi-decadal oscillations was weakly observed in the results of the precipitation runs analysis. The faintness of the decadal and multi-decadal oscillation signal may be due to the sample sizes not being long enough and/or the runs analysis not being sensitive enough to detect their presence.

show abstract

“…Several studies pointed out a mode of the SST variability in the Pacific, similar to the El Niño/ Southern Oscillation (ENSO), but with a multi-decadal scale variation (MANTUA et al, 1997;ZHANG et al, 1997;, hereinafter referred to as the Pacific Decadal Oscillation (PDO). The global anomaly patterns of the SST, sea level pressure (SLP) and wind stress fields for the PDO and ENSO modes are quite similar.…”

Section: Introductionmentioning

confidence: 99%

“…The global anomaly patterns of the SST, sea level pressure (SLP) and wind stress fields for the PDO and ENSO modes are quite similar. However, the SST pattern for the PDO is less equatorially confined in the eastern Pacific and shows significant structure in the extratropical North Pacific (e.g., ZHANG et al, 1997). MANTUA et al (1997), using SST and SLP data for the period 1900-1995, found that the PDO oscillations with the 50-70 years periodicity defined the cold PDO regime during the 1900-1924and 1947-1976sub-periods, and the warm PDO regime during the 1925-1946period, and from 1977 to the middle of the 1990's.…”

Section: Introductionmentioning

confidence: 99%

Possible influences of pacific decadal oscillation in the ten day based radio between actual and potential evapotranspiration in the region of Campinas, São Paulo State, Brazil

Blain

Kayano

Sentelhas³

et al. 2009

Bragantia

View full text Add to dashboard Cite

Considering the importance of the ratio between the actual and potential evapotranspiration (AE/PE) for agricultural purposes, the present study estimated the 10-day based AE/PE, aiming to evaluate possible influences of the Pacific Decadal Oscillation (PDO), on temporal variability series, in the region of Campinas, São Paulo State, Brazil. The shapes of the beta probability density function of the AE/PE series for four periods (two in the cold PDO phase and two in the warm PDO phase) do not show differences between the PDO phases. In this sense, the use of "average periods" to obtain a standard climatology for agrometeorological purposes (such as the climate normal of the 1961-1990 period, which encompasses sixteen years of the cold PDO phase and fourteen years of the warm PDO phase) should not result in significant errors in the region of Campinas, SP. However, considering academic/scientific purposes, the analyses of the autocorrelation functions of the residual AE/PE series for the four periods show differences in the persistence between the two phases of the PDO. Tendo em vista a importância agrícola da razão entre a evapotranspiração real e potencial (ETR/ETP), estimou-se esta relação (em escala decendial), a fim de verificar possíveis influências da Oscilação Decadal do Pacífico (PDO) sobre a variabilidade temporal desse parâmetro agrometeorológico na região de Campinas, Estado de São Paulo, Brasil. Pelas formas da função de densidade de probabilidade Beta das séries de ETR/ETP para quatro períodos (dois na fase fria, e dois na fase quente) não se observam diferenças significativas (influência) entre as fases da PDO. Nesse aspecto, sob o ponto de vista agrometeorológico, o uso de um determinado "período médio" (tal como a normal climatológica de 1961-1990, que compreende dezesseis anos da fase fria e catorze da fase quente), para caracterização de séries temporais de ETR/ETP, não deve resultar em grandes erros. No entanto, sob o enfoque científico/acadêmico, diferentes "graus de persistência" das séries de anomalias de ETR/ ETP foram observados nas duas fases da PDO. Nas fases frias, foram detectados maiores graus de persistência; sugere-se, assim, que a variabilidade temporal da ETR/ETP na região de Campinas pode estar relacionada à variabilidade de longo prazo da temperatura da superfície dos oceanos tropicais.Palavras-chave: normal climatológica, temperatura da superfície do mar.

show abstract

ENSO-like Interdecadal Variability: 1900–93

Cited by 2,198 publications

References 38 publications

Variabilities of the spring river runoff system in East China and their relations to precipitation and sea surface temperature

Variabilities of the spring river runoff system in East China and their relations to precipitation and sea surface temperature

Global analysis of runs of annual precipitation and runoff equal to or below the median: run length

Possible influences of pacific decadal oscillation in the ten day based radio between actual and potential evapotranspiration in the region of Campinas, São Paulo State, Brazil

Contact Info

Product

Resources

About