Results 31 to 40 of about 90 (85)

Development of the Boreal Summer Intraseasonal Oscillation Over the Western North Pacific Associated With Self‐Induced Fresh and Shallow Mixed Layers in 2024

Journal of Geophysical Research: Oceans, Volume 130, Issue 12, December 2025.
Abstract Air‐sea interaction plays an important role in the development of the boreal summer intraseasonal oscillation (BSISO). To elucidate this air‐sea interaction, a field observation using the research vessel (R/V) MIRAI was conducted in the tropical western North Pacific for 1 month in early summer 2024.
Ayako Seiki, Masaki Katsumata, Takanori Horii, Akira Nagano, Iwao Ueki, Qoosaku Moteki, Satoru Yokoi   +6 more
wiley   +1 more source

Development of Indian summer monsoon precipitation biases in two seasonal forecasting systems and their response to large-scale drivers [PDF]

Weather and Climate Dynamics
The Met Office Global Coupled Model (GC) and the National Centers for Environmental Prediction (NCEP) Climate Forecast System (CFSv2) are both widely used for predicting and simulating the Indian summer monsoon (ISM), and previous studies have ...
R. J. Keane, R. J. Keane, A. Srivastava, G. M. Martin   +3 more
doaj   +1 more source

Mechanisms and Subseasonal Predictability of Unprecedented Multiple Tropical Cyclone Event in Autumn 2024

Geophysical Research Letters, Volume 52, Issue 13, 16 July 2025.
Abstract In autumn 2024 (late October to mid‐November), an unprecedented multiple tropical cyclone (MTC) event occurred over the western North Pacific (WNP). Six storms formed within a month, surpassing the climatological mean by 4 standard deviations. Four storms were simultaneously active—an event unmatched in 45 years.
Yitian Qian, Pang‐Chi Hsu, Yangyang Zhao, Hao Li   +3 more
wiley   +1 more source

Remote Impact of Typhoon In‐Fa on the Catastrophic Flood Over Henan, Inland of China in July 2021

Geophysical Research Letters, Volume 52, Issue 10, 28 May 2025.
Abstract It has been shown the catastrophic flood in Henan, inland of China in July 2021, was strongly influenced by Typhoon In‐Fa in the western North Pacific. However, the remote impact of Typhoon In‐Fa via the monsoonal flow has not yet been clearly addressed.
Zhiqi Yan, Wanyi Sun, Congwen Zhu, Boqi Liu, Yuejian Zhu, Ning Jiang, Yuhan Yan   +6 more
wiley   +1 more source

Intraseasonal synchronization of extreme rainfall between North India and the Sahel

Quarterly Journal of the Royal Meteorological Society, Volume 151, Issue 769, April 2025 Part B.
The Indian Summer Monsoon (ISM) and the West African Monsoon (WAM) are dominant drivers of boreal summer precipitation variability in tropical and subtropical regions. We employ a climate network approach to uncover synchronously occurring extreme rainfall patterns across the two monsoon systems.
Felix M. Strnad, Kieran M.R. Hunt, Niklas Boers, Bedartha Goswami   +3 more
wiley   +1 more source

Exploration of Predictors for Statistical‐Dynamical Subseasonal Prediction of Western North‐Pacific Tropical Cyclone Activity in Earth System Models

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 6, 28 March 2025.
Abstract Subseasonal prediction of tropical cyclones (TCs) has many potential applications but remains a challenge due to biases in both model‐based large‐scale conditions and TCs in coupled global models. Model forecasts of environmental parameters can be linked to TC activity and then be used to extend the horizon of useful skill through statistical ...
Kurt A. Hansen, Matthew A. Janiga
wiley   +1 more source

South American Intraseasonal Oscillation: EOF and Neural Network Approaches

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 5, 16 March 2025.
Abstract This study introduces four univariate regional indices to improve the representation of intraseasonal rainfall variability across South America throughout the year, focusing on Brazil. These indices are constructed using two distinct approaches: the linear Empirical Orthogonal Functions (EOF) method and the unsupervised machine‐learning Self ...
Camila R. Sapucci, Víctor C. Mayta, Pedro Leite da Silva Dias   +2 more
wiley   +1 more source

Influence of intraseasonal oscillations on Indian heat waves: assessing the prominence of BSISO and MJO

Environmental Research: Climate
The Boreal Summer Intraseasonal Oscillation (BSISO) and Madden–Julian Oscillation (MJO) are two significant intraseasonal modulators of tropical weather. The effects of these two oscillations are mostly limited to particular seasons and regions.
Tukaram Zore, Kiranmayi Landu
doaj   +1 more source

Eastward-shifting boreal summer intraseasonal oscillation amplifies North America heatwave and wildfire risks in warming climate

npj Climate and Atmospheric Science
Boreal summer intraseasonal oscillation (BSISO) is a key component of tropical climate variability, characterized by eastward and northeastward propagation of organized convection across the Indo-Pacific region.
Ziming Chen, Sandro W. Lubis, Jian Lu, Chuan-Chieh Chang, Huilin Huang, Wenyu Zhou, Bryce E. Harrop, L. Ruby Leung   +7 more
doaj   +1 more source

Synoptic Patterns and Effects of Topography on Occurrences of Heavy Rainfall in Northwest Vietnam

Advances in Meteorology, Volume 2025, Issue 1, 2025.
Accurate forecasting of local heavy rainfall distribution over Northwest Vietnam is challenging due to the regions’s complex rainfall processes and topography. In this study, effect of the Hoang Lien Son (HLS) Mountain range on synoptic‐dynamic processes associated with the heavy rainfall were analyzed to quantify the relationship with the local ...
Tuan Bui-Minh, Long Trinh-Tuan, Thao Hoang-Phuong, Ngoc Pham-Bao, Thac Tran-Khac, Thanh Nguyen-Tien, Hue Vu-Thi-Minh, Toan Trinh, Francisco Molero   +8 more
wiley   +1 more source