Results 1 to 10 of about 29,399 (298)

Stochastic parameterization: uncertainties from convection [PDF]

open access: yes, 2011
In 2005, the ECMWF held a workshop on stochastic parameterisation, at which the convection was seen as being a key issue. That much is clear from the working group reports and particularly the statement from working group 1 that “it is clear that a ...
Keane, Richard John   +3 more
core   +2 more sources

Formulation of a dynamic convective adjustment time-scale in the CESM1.2 and its influence on the Indian summer monsoon simulations [PDF]

open access: yesScientific Reports
This study formulates and implements a dynamic convective adjustment time-scale $$\:(\tau\:$$ ) in the convective parameterization scheme of CESM1.2, replacing the default fixed $$\:\tau\:$$ .
Raju Pathak   +3 more
doaj   +2 more sources

Wind Gust Parameterization Assessment under Convective and Non-convective Events: A Case Study at the Kertajati International Airport

open access: yesJIF (Jurnal Ilmu Fisika), 2023
Wind gusts (gusts) are sudden increases in wind speed that potentially cause severe damage to infrastructure. Gusts occur within several seconds but numerical weather models typically predict future wind with a time step of tens of seconds or minutes ...
Muhammad Rafid Zulfikar   +2 more
doaj   +1 more source

The Impact of Scale-Aware Parameterization on the Next-Generation Global Prediction System in Taiwan for Front Predictions

open access: yesAtmosphere, 2022
In order to improve the precipitation forecast of the next-generation Global Prediction System with the Finite-Volume Cubed-Sphere Dynamical Core in Taiwan’s Central Weather Bureau, this study modified the convective processes in the New Simplified ...
Chang-Hung Lin   +3 more
doaj   +1 more source

Parameterizing Convective Organization Effects With a Moisture‐PDF Approach in Climate Models: Concept and a Regional Case Simulation

open access: yesJournal of Advances in Modeling Earth Systems, 2022
We propose a parameterization scheme of convective organization effects based on a moisture‐distribution approach, which can reflect aggregation of convective cells within a model grid as well as the interaction between convection and spatial ...
Ben Yang   +9 more
doaj   +1 more source

Dependence of Convective Cloud Properties and Their Transport on Cloud Fraction and GCM Resolution Diagnosed from a Cloud-Resolving Model Simulation

open access: yesJournal of Marine Science and Engineering, 2022
The scale-aware convective parameterization for high resolution global climate models must satisfy the requirement that the parameterized subgrid convective transport diminishes as the model resolution increases to convection-resolving resolutions.
Zhanjie Zhang, Guang J. Zhang
doaj   +1 more source

Lightning NO2 simulation over the contiguous US and its effects on satellite NO2 retrievals [PDF]

open access: yesAtmospheric Chemistry and Physics, 2019
Lightning is an important NOx source representing ∼10 % of the global source of odd N and a much larger percentage in the upper troposphere. The poor understanding of spatial and temporal patterns of lightning contributes to a large uncertainty in
Q. Zhu   +4 more
doaj   +1 more source

Tropical variability simulated in ICON-A with a spectral cumulus parameterization [PDF]

open access: yes, 2020
We implemented a spectral cumulus parameterization based on a cloud-resolving model (SC scheme) in the icosahedral nonhydrostatic atmospheric model (ICON-A).
Baba, Y., Giorgetta, M.
core   +2 more sources

Phenomenology of convection-parameterization closure [PDF]

open access: yesAtmospheric Chemistry and Physics, 2012
Abstract. Closure is a problem of defining the convective intensity in a given parameterization. In spite of many years of efforts and progress, it is still considered an overall unresolved problem. The present article reviews this problem from phenomenological perspectives.
Yano, Jun-Ichi   +6 more
openaire   +4 more sources

A Lagrangian convective transport scheme including a simulation of the time air parcels spend in updrafts (LaConTra v1.0) [PDF]

open access: yesGeoscientific Model Development, 2019
We present a Lagrangian convective transport scheme developed for global chemistry and transport models, which considers the variable residence time that an air parcel spends in convection.
I. Wohltmann   +9 more
doaj   +1 more source

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