Results 71 to 80 of about 7,697 (227)

The effect of the Madden-Julian Oscillation on station rainfall and river level in the Fly River system, Papua New Guinea [PDF]

open access: yes, 2013
The Madden-Julian oscillation (MJO) is the dominant mode of intraseasonal variability in tropical rainfall on the large scale, but its signal is often obscured in individual station data, where effects are most directly felt at the local level.
Barlow   +32 more
core   +1 more source

Decadal change in the boreal summer intraseasonal oscillation [PDF]

open access: yesClimate Dynamics, 2016
A decadal change in activity of the boreal summer intraseasonal oscillation (BSISO) was identified at a broad scale. The change was more prominent during August–October in the boreal summer. The BSISO activity during 1999–2008 (P2) was significantly greater than that during 1984–1998 (P1).
Yamaura, Tsuyoshi, Kajikawa, Yoshiyuki
openaire   +1 more source

Diagnosing the 11‐year solar cycle's influence on the East Atlantic pattern

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
A previously unidentified solar‐cycle response in the East Atlantic pattern is found in late winter at lag +3 years with larger amplitude than the NAO response. A statistically significant NAO response to the solar cycle is seen in late winter at lag 0 years.
Stergios Misios   +4 more
wiley   +1 more source

An Analysis of Tropical Cyclone Activity over the Western North Pacific in 2011

open access: yesTropical Cyclone Research and Review, 2012
: This paper uses China Meteorological Administration tropical cyclone (TC) best track data to analyze the characteristics of TC activity over the western North Pacific in 2011.
Bi Tang, Ming Ying
doaj   +1 more source

Impact of data assimilation on Arctic sea‐ice thickness variability and its coupling with atmospheric forcing

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
We document for the first time how the assimilation of CS2SMOS observations improves the model representation of Arctic sea‐ice thickness (SIT) and its variability: biases are reduced (top row), while excessive variability in the Beaufort Sea and lack of variability in the ice pack are both corrected (bottom row).
Jiping Xie   +3 more
wiley   +1 more source

On the Relationship Between Tropical Instability Waves and Intraseasonal Equatorial Kelvin Waves in the Pacific From Satellite Observations (1993–2018)

open access: yesFrontiers in Marine Science, 2022
Intraseasonal Kelvin waves (IKWs) and Tropical Instability Waves (TIWs) are essential components of the tropical Pacific coupled climate variability. While downwelling IKWs are precursors of ENSO (e.g., the El Niño Southern Oscillation), TIWs contribute ...
M. Gabriela Escobar-Franco   +5 more
doaj   +1 more source

Propagation mechanisms for the Madden-Julian Oscillation [PDF]

open access: yes, 2000
The Madden-Julian Oscillation (MJO) is examined using 20 years of outgoing longwave radiation and NCEP-NCAR reanalysis data. Two mechanisms for the eastward propagation and regeneration of the convective anomalies are suggested.
Matthews, AJ
core   +1 more source

How interference between the North Atlantic Oscillation and the tropical Indo‐Pacific convection modulates wave trains along the subtropical jet: Impacts on the Asian winter climate

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
This study reveals that the combined effects of the North Atlantic Oscillation (NAO) and anomalous Indo‐Pacific Walker circulation on the excitation of the wave train along the wintertime subtropical jet strongly depend on their phase combination. Their impacts interfere constructively or destructively over South Asia, leading to notable differences in
Yuki Asazuma   +2 more
wiley   +1 more source

The Unique Role of the Intraseasonal Zonal Wind in March Over the Equatorial Western Pacific Contributes to Shaping the Subsequent ENSO Development

open access: yesGeophysical Research Letters
The predictability of the El Niño‐Southern Oscillation (ENSO) is significantly limited by the spring predictability barrier (SPB). Our observational analysis suggests that considering high‐frequency wind components during the spring season may mitigate ...
Ting‐Wei Cao   +4 more
doaj   +1 more source

Extended-range prediction of a heat wave event over the Yangtze River Valley: role of intraseasonal signals

open access: yesAtmospheric and Oceanic Science Letters, 2019
The authors previous study reported the important role of extratropical intraseasonal oscillation (ISO) on the occurrence of a typical heatwave event over the Yangtze River Valley.
Xin QI, Jing YANG
doaj   +1 more source

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