Results 41 to 50 of about 639 (194)

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

Tropical 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

Decadal change in the boreal summer intraseasonal oscillation [PDF]

Climate 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

Performance Evaluation of the MPAS Model in Simulating Southeast Asian Rainfall Characteristics

International Journal of Climatology, EarlyView.
This study evaluates the performance of the Model for Prediction Across Scales–Atmosphere (MPAS) in reproducing key rainfall characteristics over Southeast Asia (SEA) during 2000–2020, using the MSWEP dataset as reference. MPAS realistically captures the observed meridional rainfall gradient, with higher rainfall in the south and lower in the north, as
Nguyen Thanh Hung, Alugula Boyaj, Srivatsan V. Raghavan, Nguyen Ngoc Son, Bhenjamin Jordan Ona   +4 more
wiley   +1 more source

Characteristics and mechanisms of intraseasonal oscillation of mixed layer salinity in the western formation region of North Pacific Tropical Water

Frontiers in Marine Science
Based on a time series of seawater salinity profile data collected by moored buoys, in conjunction with Soil Moisture Active Passive (SMAP) sea surface salinity (SSS) data from June 2015 to May 2022, as well as additional observational data, this study ...
Kai Li, Yun Qiu, Yun Qiu, Chunsheng Jing, Shangzhan Cai, Jindian Xu, Hangyu Chen   +6 more
doaj   +1 more source

Identification of the Madden–Julian Oscillation With Data‐Driven Koopman Spectral Analysis

Geophysical Research Letters, 2023
The Madden‐Julian Oscillation (MJO), the dominant mode of tropical intraseasonal variability, is commonly identified using the realtime multivariate MJO (RMM) index based on joint empirical orthogonal function (EOF) analysis of near‐equatorial upper and ...
Benjamin R. Lintner, Dimitrios Giannakis, Max Pike, Joanna Slawinska   +3 more
doaj   +1 more source

The Zonal Wind Intraseasonal Oscillation in the Exit Region of the East Asian Subtropical Westerly Jet in Winter and Its Thermodynamic Mechanism

Atmosphere, 2022
The six-hourly ERA-interim reanalysis data were used to analyze the intraseasonal oscillation (ISO) characteristics of the zonal wind in the exit region of the East Asian subtropical westerly jet (EAJ) during the winter (November to April).
Suxiang Yao, Yishan Liu
doaj   +1 more source

Mysterious Intraseasonal Oscillations in Monsoons

Eos, 2017
The unpredictable cycles of rainfall during India's summerlong monsoon have stymied scientists for decades.
openaire   +1 more source

Seasonal Characteristics of Mesoscale Convective Systems Over the Philippines

International Journal of Climatology, EarlyView.
This study examines how mesoscale convective systems (MCSs) over the Philippines are most frequent during boreal summer, while those in winter are longer‐lived and more intense due to cold surges and enhanced easterly moisture transport. Intraseasonal oscillations, such as the Madden‐Julian Oscillation (MJO) and the Boreal Summer Intraseasonal ...
Cathrene Lagare, Junshi Ito, Takeshi Yamazaki, Giuseppe Torri   +3 more
wiley   +1 more source

Windows of opportunity in subseasonal weather regime forecasting: A statistical–dynamical approach

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study explores how the atmospheric state at initialisation creates windows of opportunity for improving week 3 forecasts of weather regime activity. Greenland blocking activity increases following Madden–Julian Oscillation phases 7, 8, and 1 and weak stratospheric polar vortex states, revealing patterns exploitable by statistical models.
Fabian Mockert, Christian M. Grams, Sebastian Lerch, Julian Quinting   +3 more
wiley   +1 more source

Using a causal effect network approach to quantify the impact of ENSO teleconnections on summer monsoon precipitation over the Himalayas and key regional circulations

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We quantified the causal effect (CE) of linkages between four monthly climate indices ENSO, SMHP, RWC, and MHC for 1940–2022 with a time lag of one month. The results show CE values from (1) ENSO to SMHP of −0.33$$ -0.33 $$ to −0.44$$ -0.44 $$ (i.e., a one standard deviation (SD) increase in ENSO causes a decrease in SMHP of −0.33$$ -0.33 $$ to −0.44$$
Grzegorz Muszynski, Andrew Orr, Indrani Roy, Giorgia Di Capua, Hamish D. Pritchard, J. Scott Hosking   +5 more
wiley   +1 more source