Results 61 to 70 of about 2,209,995 (233)

Influence of the Polar‐Eurasia Pattern on Interannual Variations in Extratropical Transition of Western North Pacific Tropical Cyclones

Geophysical Research Letters
This study investigates climate drivers influencing interannual changes in the extratropical transition (ET) of western North Pacific tropical cyclones (TCs) during July–October from 1979 to 2024. We find a pronounced relationship between the fraction of
Nannan Qin, Rongqiang Qu, Jinjie Song, Philip J. Klotzbach, Yihong Duan   +4 more
doaj   +1 more source

Volcanic impact on the climate – the stratospheric aerosol load in the period 2006–2015 [PDF]

Atmospheric Chemistry and Physics, 2018
We present a study on the stratospheric aerosol load during 2006–2015, discuss the influence from volcanism and other sources, and reconstruct an aerosol optical depth (AOD) data set in a resolution of 1° latitudinally and 8 days timewise. The purpose
J. Friberg, B. G. Martinsson, S. M. Andersson, S. M. Andersson, O. S. Sandvik   +4 more
doaj   +1 more source

The Extratropical Transition and Precipitation Distribution of Hurricane Floyd (1999)

Monthly Weather Review, 2003
Abstract Several recent landfalling tropical cyclones (e.g., Dennis, Floyd, and Irene 1999) have highlighted a need for a refinement in the forecasting paradigms and techniques in the area of quantitative precipitation forecasting. Floyd proved to be a particularly challenging forecast problem as it was accompanied by catastrophic flooding over large ...
Eyad H. Atallah, Lance F. Bosart
openaire   +1 more source

A new scale‐selective measure of curvature for meteorological fields

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We introduce a novel diagnostic called curvature using radial variation (CURV) that quantifies the local cyclonic or anticyclonic curvature of mean‐sea‐level pressure or geopotential height gridded fields over selected scales. A depiction of how CURV values relate to differing cyclonic curvature is shown in the figure.
Nigel Roberts, Timothy Hewson, Anca Brookshaw, Matthieu Chevallier   +3 more
wiley   +1 more source

The extratropical transition of Hurricane Erin (2001): a potential vorticity perspective

Meteorologische Zeitschrift, 2004
The Ertel potential vorticity (PV) is a powerful tool that provides insight into the development and evolution of weather systems. In this study the extratropical transition of Hurricane Erin (2001) is investigated from a PV perspective using operational
Matthias Röbcke, Sarah C. Jones, Detlev Majewski   +2 more
doaj   +1 more source

Synoptic climatology of extratropical transition of tropical cyclones over the Southern Hemisphere [PDF]

Weather and Climate Dynamics
Tropical cyclones that move into the midlatitudes undergo changes in their structure and transition into extratropical cyclones. The process is known as extratropical transition (ET).
C. Jin, E. A. Ritchie, N. J. Holbrook
doaj   +1 more source

Observational Evidence of Distinguishable Weather Patterns for Three Types of Sudden Stratospheric Warming During Northern Winter

Frontiers in Earth Science, 2021
Sudden stratospheric warming (SSW) events often lead to a cold surface air temperature anomaly over the extratropical regions. In this study, we propose, through observational evidence, that the types of SSW determine the severity of the cold anomaly ...
Hyesun Choi, Joo-Hong Kim, Baek-Min Kim, Seong-Joong Kim   +3 more
doaj   +1 more source

Subseasonal forecasts of the MJO and convectively coupled equatorial waves in ACCESS‐S2 and GraphCast: A multi‐year analysis

Quarterly Journal of the Royal Meteorological Society, EarlyView.
ACCESS‐S2 performs better in predicting longer time‐scale and slower moving waves (MJO and equatorial Rossby waves), while GraphCast performs better in predicting shorter and faster moving waves (Kelvin and mixed Rossby–gravity waves). However, both models systematically underestimate precipitation amplitude across all wave types, especially over the ...
Beata Latos, Hanh Nguyen, Matthew C. Wheeler, Chen Li, Catherine de Burgh‐Day, Muhammad E. Hassim, Sandeep Sahany, Aurel Moise   +7 more
wiley   +1 more source

Using high resolution climate models to explore future changes in post-tropical cyclone precipitation

Environmental Research Letters
One of the most costly effects of climate change will be its impact on extreme weather events, including tropical cyclones (TCs). Understanding these changes is of growing importance, and high resolution global climate models are providing potential for ...
Erica Bower, Kevin A Reed
doaj   +1 more source

Quantifying projected changes in runoff variability and flow regimes of the Fraser River Basin, British Columbia [PDF]

Hydrology and Earth System Sciences, 2019
In response to ongoing and future-projected global warming, mid-latitude, nival river basins are expected to transition from a snowmelt-dominated flow regime to a nival–pluvial one with an earlier spring freshet of reduced magnitude. There is, however, a
S. U. Islam, C. L. Curry, S. J. Déry, F. W. Zwiers   +3 more
doaj   +1 more source