Results 21 to 30 of about 31,825 (254)

Intensity fluctuations in Hurricane Irma (2017) during a period of rapid intensification [PDF]

open access: yesWeather and Climate Dynamics, 2022
Abstract. This study aims to understand the fluctuations observed in Hurricane Irma (2017), which change the tangential wind speed and the size of the radius of maximum surface wind and therefore affect short-term destructive potential. Intensity fluctuations observed during a period of rapid intensification of Hurricane Irma between 4 and 6 September ...
William Stanley Torgerson   +3 more
openaire   +4 more sources

Development of a Flash Drought Intensity Index

open access: yesAtmosphere, 2021
Flash droughts are characterized by a period of rapid intensification over sub-seasonal time scales that culminates in the rapid emergence of new or worsening drought impacts.
Jason A. Otkin   +10 more
doaj   +1 more source

Rapid Intensification of Typhoon Mujigae (2015) under Different Sea Surface Temperatures: Structural Changes Leading to Rapid Intensification [PDF]

open access: yesJournal of the Atmospheric Sciences, 2018
Abstract The notable prelandfall rapid intensification (RI) of Typhoon Mujigae (2015) over abnormally warm water with moderate vertical wind shear (VWS) is investigated by performing a set of full-physics model simulations initialized with different sea surface temperatures (SSTs).
Xiaomin Chen, Ming Xue, Juan Fang
openaire   +1 more source

Does the Antarctic Oscillation modulate tropical cyclone rapid intensification over the western North Pacific?

open access: yesEnvironmental Research Letters, 2022
This study investigates the modulation of tropical cyclone (TCs) rapid intensification (RI) over the western North Pacific by the Antarctic Oscillation.
Jinjie Song   +3 more
doaj   +1 more source

Tropical cyclone rapid intensification and the excitation of inertia-gravity waves on the edges of an evolving potential vorticity structure

open access: yesFrontiers in Earth Science, 2022
The problem of tropical cyclone rapid intensification is reduced to a potential vorticity (PV) equation and a second order, inhomogeneous, partial differential equation for the azimuthal wind.
Wayne H. Schubert, Richard K. Taft
doaj   +1 more source

A Triggering Mechanism for Rapid Intensification of Tropical Cyclones [PDF]

open access: yesJournal of the Atmospheric Sciences, 2015
Triggering processes for the rapidly intensifying phase of a tropical cyclone (TC) were investigated on the basis of numerical experiments using a three-dimensional nonhydrostatic model. The results revealed that the rapid intensification of the simulated TC commenced following the formation of a circular cloud, which occurred about 12 h after the TC ...
Miyamoto, Yoshiaki, Takemi, Tetsuya
openaire   +1 more source

The Increased Likelihood in the 21st Century for a Tropical Cyclone to Rapidly Intensify When Crossing a Warm Ocean Feature—A Simple Model’s Prediction

open access: yesAtmosphere, 2021
A warm ocean feature (WOF) is a blob of the ocean’s surface where the sea-surface temperature (SST) is anomalously warmer than its adjacent ambient SST. Examples are warm coastal seas in summer, western boundary currents, and warm eddies. Several studies
Leo Oey
doaj   +1 more source

Quasi-biennial modulation of rapidly intensifying tropical cyclones by the western North Pacific monsoon

open access: yesEnvironmental Research Communications, 2023
Previous publications have highlighted the relationship between several climate modes such as El Niño–Southern Oscillation and tropical cyclones (TCs) experiencing rapid intensification (RI) over the western North Pacific (WNP), particularly on a 3–7-yr ...
Jinjie Song   +3 more
doaj   +1 more source

A Shortening of the Life Cycle of Major Tropical Cyclones

open access: yesGeophysical Research Letters, 2020
In this study a comprehensive picture of the changing intensity life cycle of major (Category 3 and higher) tropical cyclones (TCs) is presented. Over the past decades, the lifetime maximum intensity has increased, but there has also been a significant ...
S. Wang, T. Rashid, H. Throp, R. Toumi
doaj   +1 more source

Rapid strengthening of westerlies accompanied intensification of Northern Hemisphere glaciation

open access: yesNature Communications, 2023
AbstractThe trigger, pace, and nature of the intensification of Northern Hemisphere Glaciation (iNHG) are uncertain, but can be probed by study of ODP Site 1208 North Pacific marine sediments. Herein, we present magnetic proxy data that indicate a 4-fold increase of dust between ~ 2.73 and ~ 2.72 Ma, with subsequent increases at the start of glacials ...
Joshua D. Bridges   +3 more
openaire   +3 more sources

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