Results 31 to 40 of about 127 (125)

Unified Forecast System Prediction of the Madden‐Julian Oscillation and Its Influence on East Pacific During Boreal Summer

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 18, 28 September 2025.
Abstract This study evaluates the subseasonal‐to‐seasonal (S2S) prediction skill of the Madden‐Julian Oscillation (MJO) and its impacts on the east Pacific (EP) tropical cyclogenesis in the Unified Forecast System (UFS) during boreal summer (May–October).
Yu‐Cian Tsai, Eric D. Maloney, Daehyun Kim, Suzana J. Camargo   +3 more
wiley   +1 more source

A Single Tropical Rainbelt in Global Storm‐Resolving Models: The Role of Surface Heat Fluxes Over the Warm Pool

Journal of Advances in Modeling Earth Systems, Volume 17, Issue 7, July 2025.
Abstract Global uncoupled storm‐resolving simulations using the ICOsahedral Non‐hydrostatic (ICON) model with prescribed sea surface temperature (SST) show a double band of precipitation in the Western Pacific, a feature explained by reduced precipitation over the warm pool. Three hypotheses using an energetic framework are advanced to explain the warm
H. Segura, C. Bayley, R. Fievét, H. Glöckner, M. Günther, L. Kluft, A. K. Naumann, S. Ortega, D. S. Praturi, M. Rixen, H. Schmidt, M. Winkler, C. Hohenegger, B. Stevens   +13 more
wiley   +1 more source

Model sensitivity studies regarding the role of the retention coefficient for the scavenging and redistribution of highly soluble trace gases by deep convective cloud systems [PDF]

Atmospheric Chemistry and Physics, 2007
The role of the retention coefficient (i.e. the fraction of a dissolved trace gas which is retained in hydrometeors during freezing) for the scavenging and redistribution of highly soluble trace gases by deep convective cloud systems is investigated ...
M. Salzmann, M. G. Lawrence, V. T. J. Phillips, L. J. Donner   +3 more
doaj  

Extended EOF Analysis of Tropical Disturbances: TOGA COARE

Journal of the Atmospheric Sciences, 1997
Empirical orthogonal function (EOF) analyses are performed of time‐height series of zonal and meridional winds and of cumulonimbus heating and drying in the Tropics. The data are from a rawinsonde array in the western Pacific located between the equator and 108S during the intensive observation period of the Tropical Ocean Global Atmosphere Coupled ...
Klaus Fraedrich, John L. McBride, William M. Frank, Risheng Wang   +3 more
openaire   +1 more source

Convection in TOGA COARE: Horizontal Scale, Morphology, and Rainfall Production [PDF]

Journal of the Atmospheric Sciences, 1998
Abstract The occurrence frequency and rainfall production of mesoscale convective systems (MCSs) relative to smaller groups of convective clouds over the tropical oceans is not well known. Eighty days of shipboard radar data collected during the recent Tropical Ocean Global Atmosphere Coupled Ocean–Atmosphere Response Experiment (TOGA COARE) were used ...
Thomas M. Rickenbach, Steven A. Rutledge
openaire   +1 more source

Observing Ocean‐Atmosphere Fluxes From Autonomous Surface Vehicles

Geophysical Research Letters, Volume 52, Issue 12, 28 June 2025.
Abstract With the increasing use of autonomous surface vehicles (ASVs) to characterize the marine atmospheric boundary layer, better understanding and evaluation of the observations collected from these platforms is needed. We present here unique comparisons of measurements of bulk properties and air‐sea fluxes collected from ASVs right above the sea ...
Laurent Grare, Luc Lenain, J. Thomas Farrar   +2 more
wiley   +1 more source

Sensitivity of satellite observations for freshly produced lightning NO_x [PDF]

Atmospheric Chemistry and Physics, 2009
In this study, we analyse the sensitivity of nadir viewing satellite observations in the visible range to freshly produced lightning NOx. This is a particular challenge due to the complex and highly variable conditions of meteorology, (photo-) chemistry,
T. Wagner, M. G. Lawrence, M. Salzmann, S. Beirle   +3 more
doaj  

What controls the onset of winter stratification in a deep, dimictic lake?

Limnology and Oceanography, Volume 69, Issue 12, Page 2791-2800, December 2024.
Abstract The transition from summer stratification to winter stratification is considered for deep, dimictic Lake Superior. The fall transition is dynamically distinct from the better‐studied spring transition; it is characterized by a wind‐driven collapse of weakening summer stratification, a surface‐cooling–driven period during which the water column
Jay Austin
wiley   +1 more source

Impact of Surface Turbulent Fluxes on the Formation of Roll Vortices in a Mediterranean Windstorm

Journal of Geophysical Research: Atmospheres, Volume 129, Issue 22, 28 November 2024.
Abstract Roll vortices can have a significant influence on the exchanges of momentum, sensible heat and moisture throughout the boundary layer. They have been shown to reinforce air‐sea interactions under strong wind conditions. This raises the question of how air‐sea exchanges can, in turn, affect the roll vortices.
Wahiba Lfarh, Florian Pantillon, Jean‐Pierre Chaboureau, Sophia E. Brumer   +3 more
wiley   +1 more source

Sensibilidade de conjuntos de nuvens a variações de parâmetros microfísicos: parte I - simulação de controle Sensitivity of cloud ensembles to variations in microphysical parameters: part I - control simulation

Revista Brasileira de Meteorologia, 2013
Este trabalho é o primeiro de uma série de quatro artigos, com o objetivo de analisar como variações em parâmetros microfísicos afetam o ciclo de vida de nuvens de fase mista, para diferentes condições de estabilidade vertical, adotando como ferramenta ...
André de Sena Pinheiro, Alexandre Araújo Costa   +1 more
doaj