Results 71 to 80 of about 2,209,995 (233)

Meteorologists and insurers explore extratropical transition of tropical cyclones [PDF]

Eos, Transactions American Geophysical Union, 1999
Most tropical cyclones weaken as they come ashore or track poleward over colder ocean water. Yet some tropical cyclones go through a number of changes that may cause them to remain a threat after landfall or as they move poleward from the tropics. The acceleration or reintensification of these storms is associated with their transition from a tropical ...
openaire   +1 more source

The Extratropical Transition of Tropical Cyclones: Forecast Challenges, Current Understanding, and Future Directions [PDF]

, 2003
A significant number of tropical cyclones move into the midlatitudes and transform into extratropical cyclones. This process is generally referred to as extratropical transition (ET).
Bowyer, Peter J., Hart, Robert E., Sinclair, Mark R., Bosart, Lance F., Lalaurette, François, Hanstrum, Barry N., Abraham, Jim, Hanley, Deborah E., Jones, Sarah C., Smith, Roger K., Thorncroft, Chris, Harr, Patrick A., Evans, Jenni L.   +12 more
core  

Extratropical transition of Western North Pacific tropical cyclones [PDF]

, 1997
Extratropical transition (ET) of a tropical cyclone (TC) often results in a mid-latitude storm that threatens maritime and coastal interests. Cases of ET between 1 July through 31 October during 1994-1996 are reviewed using Navy Operational Global ...
Klein, Peter M.
core   +1 more source

Enhancing severe convection forecasts with microwave radiance assimilation in limited‐area models

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Microwave satellite radiances remain largely underexploited in convection‐permitting limited‐area models. We assess the assimilation of humidity‐sensitive radiances from the MHS instrument in the operational ICON‐2I model, improving the precipitation forecast of a severe convective event over the Marche region, Italy, substantially by correcting ...
Marcello Grenzi, Thomas Gastaldo, Virginia Poli, Chiara Marsigli, Tijana Janjic, Alberto Carrassi   +5 more
wiley   +1 more source

Characterizing variability and vertical structure of water vapor in the extratropical lower stratosphere [PDF]

Atmospheric Chemistry and Physics
Stratospheric water vapor strongly affects Earth’s radiative balance, especially in the extratropical lower stratosphere, yet large uncertainties remain regarding its variability, long-term trends and relationships to tropopause behavior.
E. N. Tinney, W. J. Randel, J. Zhang
doaj   +1 more source

The Structure and Environment in Reintensification of Typhoons after Extratropical Transition [PDF]

, 2013
Typhoons often reintensify after their transition to extratropical cyclones. In order to analyze the evolution of cyclone structure during reintensification, the typhoons which rapidly reintensified after extratropical transition were examined in view of
髙村, 奈央, 石川, 裕彦
core  

Attribution of subseasonal cold‐spell forecasts to remote drivers using nudging experiments

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Nudging experiments with the European Centre for Medium‐Range Weather Forecasts (ECMWF) model show that Northern European cold spells can arise from different drivers. Some events are predominantly influenced by stratospheric dynamics, while others also involve important tropospheric processes.
Irene Erner, Alexey Karpechko, Inna Polichtchouk, Frédéric Vitart   +3 more
wiley   +1 more source

Forecasting Post-Extratropical Transition Outcomes for Tropical Cyclones Using Support Vector Machine Classifiers

, 2011
Intensity changes following the multistage process of extratropical transition have proven to be especially difficult to forecast because of the extremely similar storm evolutions prior to and during the first stages of the transformation from a warm ...
J. Scott Tyo, Brian LaCasse, Elizabeth A. Ritchie, Steven R. Felker   +3 more
core   +1 more source

Impacts of the Madden-Julian oscillation on Australian rainfall and circulation [PDF]

, 2009
Impacts of the Madden¿Julian oscillation (MJO) on Australian rainfall and circulation are examined during all four seasons. The authors examine circulation anomalies and a number of different rainfall metrics, each composited contemporaneously for eight ...
Meinke, H.B., Wheeler, M.C., Hendon, H.H., Cleland, S., Donald, A.   +4 more
core   +1 more source

Synoptic and large‐scale drivers of extreme precipitation events in the Himalayas

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Months associated with maximum frequency of extreme precipitation events (EPEs). 6102 extreme precipitation days (i.e., exceeding 99th percentile for daily precipitation) occurred across the Karakoram, Western Himalayas (WH), Central Himalayas (CH) and Eastern Himalayas (EH) during 1979 to 2023.
Priya Bharati, Pranab Deb, Kieran M. R. Hunt   +2 more
wiley   +1 more source