Tropical Cirrus in Global Storm‐Resolving Models: 1. Role of Deep Convection
Earth and Space Science, 2022 Pervasive cirrus clouds in the upper troposphere and tropical tropopause layer (TTL) influence the climate by altering the top‐of‐atmosphere radiation balance and stratospheric water vapor budget.
J. M. Nugent +4 more
doaj +1 more source
Impact of deep convection in the tropical tropopause layer in West Africa: in-situ observations and mesoscale modelling [PDF]
, 2010 We present the analysis of the impact of convection on the composition of the tropical tropopause layer region (TTL) in West-Africa during the AMMA-SCOUT campaign. Geophysica M55 aircraft observations of water vapor, ozone, aerosol and CO2 show perturbed
Borrmann, Stephan +9 more
core +6 more sources
Propagation mechanisms for the Madden-Julian Oscillation [PDF]
, 2000 The Madden-Julian Oscillation (MJO) is examined using 20 years of outgoing longwave radiation and NCEP-NCAR reanalysis data. Two mechanisms for the eastward propagation and regeneration of the convective anomalies are suggested.
Matthews, AJ
core +1 more source
Journal of Advances in Modeling Earth Systems, 2017 We implement a Stochastic Multicloud Model (SMCM) in an observation‐informed configuration into the convection scheme of the state‐of‐the‐art GCM ECHAM6.3.
Karsten Peters +3 more
doaj +1 more source
Impact of Domain Size on Tropical Precipitation Within Explicit Convection Simulations
Geophysical Research Letters, 2023 We investigate the sensitivity of modeled tropical precipitation accumulation, intensity and structures to the extent of convection‐permitting limited area model (LAM) domain size.
Richard W. Jones +5 more
doaj +1 more source
Evolution of convection during tropical cyclogenesis [PDF]
Geophysical Research Letters, 2007 Central to tropical cyclogenesis is the changing behavior of moist convection as the cyclone evolves. Based on a cumulus ensemble model run in weak temperature gradient mode, we suggest that the mid‐level vortex created by early‐stage convection stabilizes the environment in way that favors further development.
David J. Raymond, Sharon L. Sessions
openaire +1 more source
Vertical Resolution Impacts Explicit Simulation of Deep Convection
Journal of Advances in Modeling Earth Systems, 2023 The aggregation of tropical convection greatly influences the mean‐state of the atmosphere, altering humidity distributions, total atmospheric radiative cooling, and cloud amounts.
A. M. Jenney +2 more
doaj +1 more source
Sensitivity of tropical deep convection in global models: Effects of horizontal resolution, surface constraints, and 3D atmospheric nudging [PDF]
, 2015 We investigate the ability of global models to capture the spatial patterns of tropical deep convection. Their sensitivity is assessed through changing horizontal resolution, surface flux constraints, and constraining background atmospheric conditions ...
Chemel, C +4 more
core +2 more sources
A Statistical Analysis of the Influence of Deep Convection on Water Vapor Variability in the Tropical Upper Troposphere [PDF]
, 2009 The factors that control the influence of deep convective detrainment on water vapor in the tropical upper troposphere are examined using observations from multiple satellites in conjunction with a trajectory model.
Fu, R., Heymsfield, A. J., Wright, J. S.
core +2 more sources
Quantifying Convective Aggregation Using the Tropical Moist Margin's Length [PDF]
Journal of Advances in Modeling Earth Systems, 2020 AbstractOn small scales, the tropical atmosphere tends to be either moist or very dry. This defines two states that, on large scales, are separated by a sharp margin, well identified by the antimode of the bimodal tropical column water vapor distribution.
Tom Beucler +2 more
openaire +5 more sources