Results 121 to 130 of about 7,697 (227)

An intercomparison of intraseasonal variability in general circulation models and observations [PDF]

open access: yes
Low frequency oscillations appearing in three GCM seasonal cycle integrations are compared with the analyses of the European Center for Medium Range Weather Forecasting (ECMWF). All three models have the same resolution: 4 deg latitude by 5 deg longitude,
Lau, Ka-Ming   +3 more
core   +1 more source

A Nonlinear Schrödinger Equation Model of the Intraseasonal Oscillation

open access: yesJournal of the Atmospheric Sciences, 2000
Abstract The nonlinear Schrodinger (NLS) equation was used to explore possible mechanisms responsible for the intraseasonal oscillation phenomenon occurring in the atmosphere. An NLS equation depicts such a scenario that in a narrowbanded wave packet, the balance between nonlinearity and dispersion results in either a focusing of the wave packet ...
Jiansheng Zou, Han-Ru Cho
openaire   +1 more source

Modeling intraseasonal features of 2004 North American monsoon precipitation [PDF]

open access: yes, 2007
This study examines the capabilities and limitations of the fifth-generation Pennsylvania State University-National Center for Atmospheric Research Mesoscale Model (MM5) in predicting the precipitation and circulation features that accompanied the 2004 ...
Gao, X, Li, J, Sorooshian, S
core   +1 more source

Adaptive Filtering and Prediction of Intraseasonal Oscillations

open access: yesMonthly Weather Review, 2001
Abstract A statistical model based on the combination of singular spectrum analysis (SSA) and the maximum entropy method (MEM) is applied to monitor and forecast outgoing longwave radiation anomalies (OLRAs) in the intraseasonal band over the Indian–Pacific sector and in the pan-American region. SSA is related to empirical orthogonal function analysis (
openaire   +1 more source

Large‐Scale Climate Patterns Modulate Intraseasonal Mesoscale Activities in the Bay of Bengal

open access: yesGeophysical Research Letters
By focusing on the intraseasonal mesoscale eddy kinetic energy, this study comprehensively distinguishes the influences of El Niño‐Southern Oscillation (ENSO) and Indian Ocean Dipole (IOD) on eddy activities in the Bay of Bengal.
Zheen Zhang   +5 more
doaj   +1 more source

Distinct intraseasonal periodicity of Siberian high as modulated by ENSO: dominance of Madden–Julian oscillation

open access: yesEnvironmental Research Letters
While previous studies have demonstrated that the El Niño-Southern Oscillation (ENSO) can impact global climate systems on the intraseasonal timescale, how ENSO affects the intraseasonal variability of the Siberian high (SH) still remains unclear.
Fang Zhou   +4 more
doaj   +1 more source

Linear and nonlinear aspects of the tropical 30-60 day oscillation: A modeling study [PDF]

open access: yes
The scientific problem focused on study of the tropical 30-60 day oscillation and explanation for this phenomenon is discussed. The following subject areas are covered: the scientific problem (the importance of low frequency oscillations; suggested ...
Stephens, Graeme L., Stevens, Duane E.
core   +1 more source

Increased mixed layer salinity during the monsoon intraseasonal Oscillation in the Northern Bay of Bengal

open access: yesGeoscience Letters
The northern Bay of Bengal (BoB) exhibits low mixed layer salinity accompanied by strong intraseasonal variability, primarily driven by the Indian Summer Monsoon and monsoon intraseasonal oscillation (MISO).
Weihua Liang   +3 more
doaj   +1 more source

What Triggers Intraseasonal Oscillations in the Indian Ocean?

open access: yesEos, 2016
A new modeling study suggests that the triggering of the Madden-Julian Oscillation is dominated by interactions with preceding events.
openaire   +1 more source

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