Results 41 to 50 of about 351 (124)

An opportunity index to anticipate when subseasonal predictions are useful

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Simultaneously active subseasonal windows of forecast opportunity can be combined into a single opportunity index, which can be used operationally to anticipate enhanced or reduced subseasonal prediction skill. For predictions of temperature anomalies in Switzerland during summer—a region and season with particularly low predictability—skill can nearly
Dominik Büeler, Maria Pyrina, Adel Imamovic, Christoph Spirig, Daniela I. V. Domeisen   +4 more
wiley   +1 more source

Equatorial convection controls boreal summer intraseasonal oscillations in the present and future climates

npj Climate and Atmospheric Science
The boreal summer intraseasonal oscillation (BSISO) is the major mode of tropical intraseasonal variability during the Indian summer monsoon (ISM), it partly controls the dry and wet spells of the ISM and thus is crucial for agricultural yield in the ...
Aditya Kottapalli, P. N. Vinayachandran
doaj   +1 more source

AsiaPEX:Challenges and Prospects in Asian Precipitation Research [PDF]

, 2023
The Asian Precipitation Experiment (AsiaPEX) was initiated in 2019 to understand terrestrial precipitation over diverse hydroclimatological conditions for improved predictions, disaster reduction, and sustainable development across Asia under the ...
Das, Someshwar, Dimri, A. P., Dutta, Subashisa, Fujinami, Hatsuki, Fujita, Koji, Fukushima, Azusa, Ha, Kyung Ja, Hirose, Masafumi, Hong, Jinkyu, Kamimera, Hideyuki, Kanae, Shinjiro, Kayastha, Rijan Bhakta, Kiguchi, Masashi, Kikuchi, Kazuyoshi, Kim, Hyun Mee, Kitoh, Akio, Kubota, Hisayuki, Ma, Weiqiang, Ma, Yaoming, Matsumoto, Jun, Mujumdar, Milind, Nodzu, Masato I., Sato, Tomonori, Su, Z., Sugimoto, Shiori, Takahashi, Hiroshi G., Takaya, Yuhei, Terao, Toru, van Oevelen, Peter, Wang, Shuyu, Yang, Kun, Yokoi, Satoru   +31 more
core   +1 more source

Eastward Propagation of Anomalous Indo–Pacific Walker Circulation During ENSO Transition

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract By analyzing the zonal mass streamfunction over the equatorial Indo–Pacific region in the period 1979–2024, we found that during the decaying phase of 13 out of 31 El Niño‐Southern Oscillation (ENSO) events, the anomalous Indo–Pacific Walker Circulation (IPWC) propagates steadily eastward across the warm pool. Vertical velocity, precipitation,
Longjun Fan, Tao Lian, Ruikun Hu, Ting Liu, Wendi Wu   +4 more
wiley   +1 more source

Maintenance of Moisture Anomalies Across Synoptic and Intraseasonal Timescales Over the Indo‐Pacific Warm Pool

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 9, 16 May 2026.
Abstract Moisture variability plays a fundamental role in regulating tropical precipitation; however, the mechanisms that sustain moisture anomalies across different timescales remain unclear. This study examines how moisture anomalies are regulated over the Indo‐Pacific warm pool using the column‐integrated moist static energy (CMSE) budget.
S. M. Navarro, K. Yasunaga, A. Hamada, K. Ueyoshi   +3 more
wiley   +1 more source

The Contribution of Non-Tropical Cyclone Vortices to the Rainfall of the Philippines [PDF]

, 2022
Weaker disturbances than tropical cyclones (TCs) such as tropical depressions and cold surges can significantly induce heavy rainfall and flooding events over the Philippines.
Manalo, John A, Matsumoto, Jun, Olaguera, Lyndon Mark P   +2 more
core   +1 more source

Distinct Dominant Intraseasonal Oscillation Modes Modulate South China's Persistent Extreme Precipitation in Rainy Season

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract This study investigates mechanisms by which distinct intraseasonal oscillation modes drive regional persistent extreme precipitation events over South China during the rainy season. Based on periodic characteristics of 54 such events, two dominant modes are identified: 12–20‐day (type‐1) and 25–50‐day (type‐2) oscillations. Although comparable
Wei Lu, Yao Ha, Yimin Zhu, Haixia Dai, Yijia Hu, Xiangrong Yang, Yudi Liu, Zhong Zhong   +7 more
wiley   +1 more source

Stratospheric Quasi‐Biennial Oscillation Modulates the Impact of Boreal Summer Intraseasonal Oscillation on Rainfall Extremes in the Yangtze–Huaihe River Basin

Geophysical Research Letters
The impact of the boreal summer intraseasonal oscillation (BSISO) on rainfall anomalies in the Yangtze–Huaihe River Basin (YHRB) was found to be modulated by the stratospheric quasi‐biennial oscillation (QBO), which is reasonable for the close ...
Fang Zhou, Yuqi Wu, Tingting Han, Zhicong Yin   +3 more
doaj   +1 more source

Multiscale Interactions between Local Short- and Long-Term Spatio-Temporal Mechanisms and Their Impact on California Wildfire Dynamics

Fire
California has experienced a surge in wildfires, prompting research into contributing factors, including weather and climate conditions. This study investigates the complex, multiscale interactions between large-scale climate patterns, such as the Boreal
Stella Afolayan, Ademe Mekonnen, Brandi Gamelin, Yuh-Lang Lin   +3 more
doaj   +1 more source

Indo–Western Pacific Tropical Heating Anomalies Regulate the Cross‐Pacific Atmospheric River Highways During Boreal Summer

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Atmospheric rivers (ARs) constitute a global, interconnected highway network rather than isolated regional events. In boreal summer, cross‐Pacific ARs originate over Southeast Asia, are fueled by subtropical outflows from the Asian monsoon plume, transport warm, moist air across the North Pacific, and make landfall in North America (NA).
Yurong Song, Mengqian Lu, Yang Zhao
wiley   +1 more source