Results 11 to 20 of about 471 (243)

A spectral nudging method for the ACCESS1.3 atmospheric model [PDF]

open access: yesGeoscientific Model Development, 2015
A convolution-based method of spectral nudging of atmospheric fields is developed in the Australian Community Climate and Earth Systems Simulator (ACCESS) version 1.3 which uses the UK Met Office Unified Model version ...
P. Uhe, M. Thatcher
doaj   +4 more sources

Impacts of using spectral nudging on regional climate model RCA4 simulations of the Arctic [PDF]

open access: yesGeoscientific Model Development, 2013
The performance of the Rossby Centre regional climate model RCA4 is investigated for the Arctic CORDEX (COordinated Regional climate Downscaling EXperiment) region, with an emphasis on its suitability to be coupled to a regional ocean and sea ice model ...
P. Berg, R. Döscher, T. Koenigk
doaj   +4 more sources

Comparison of Analysis and Spectral Nudging Techniques for Dynamical Downscaling with the WRF Model over China [PDF]

open access: yesAdvances in Meteorology, 2016
To overcome the problem that the horizontal resolution of global climate models may be too low to resolve features which are important at the regional or local scales, dynamical downscaling has been extensively used.
Yuanyuan Ma   +5 more
doaj   +2 more sources

Global Kilometer‐Scale Climate Storylines Using Spectral Nudging

open access: yesJournal of Advances in Modeling Earth Systems
Effective climate adaptation benefits from detailed, actionable information on how specific extreme events are influenced by climate change. Here we present the first global, kilometer‐scale coupled modeling framework that enables counterfactual ...
Amal John   +22 more
doaj   +4 more sources

Sensitivity Evaluation of Spectral Nudging Schemes in Historical Dynamical Downscaling for South Asia [PDF]

open access: yesAdvances in Meteorology, 2017
Sensitivity experiments testing two scale-selective bias correction (SSBC) methods have been carried out to identify an optimal spectral nudging scheme for historical dynamically downscaled simulations of South Asia, using the coordinated regional ...
Mehwish Ramzan   +4 more
doaj   +2 more sources

Spectral nudging in the Tropics [PDF]

open access: yes, 2020
Abstract. Spectral nudging allows forcing a selected part of the spectrum of a model's solution with the equivalent part in a reference dataset, such as an analysis, reanalysis or another model. This constrains the evolution in certain scales, typically the synoptic ones, while allowing the others to evolve freely. In a limited area model (LAM) setting,
Breogán Gómez, Gonzalo Miguez-Macho
openaire   +3 more sources

Synoptic systems influence the effectiveness of spectral nudging in high-resolution simulations of extreme precipitation

open access: yesnpj Climate and Atmospheric Science
Spectral nudging (SN) is an effective numerical technique that prevents the background field from deviating excessively from the boundary conditions in regional climate modeling.
Daeun Kwon   +9 more
doaj   +2 more sources

Optimal Spectral Nudging for Global Dynamic Downscaling [PDF]

open access: yesMonthly Weather Review, 2017
This study analyzes a method of constructing a homogeneous, high-resolution global atmospheric hindcast. The method is the spectral nudging technique, which was applied to a state-of-the-art general circulation model (ECHAM6, T255L95). Large spatial scales of the global climate model prognostic variables were spectrally nudged toward a reanalysis ...
Schubert-Frisius, M.   +3 more
openaire   +3 more sources

Spectral nudging in regional climate modelling: how strongly should we nudge? [PDF]

open access: yesQuarterly Journal of the Royal Meteorological Society, 2012
AbstractSpectral nudging is a technique consisting in driving regional climate models (RCMs) on selected spatial scales corresponding to those produced by the driving global circulation model (GCM). This technique prevents large and unrealistic departures between the GCM driving fields and the RCM fields at the GCM spatial scales.
Omrani, Hiba   +2 more
openaire   +3 more sources

Distúrbios Ondulatórios de Leste no Nordeste Brasileiro: Um Estudo de Caso Utilizando Modelagem Numérica de Mesoescala

open access: yesRevista Brasileira de Meteorologia, 2021
Resumo Os Distúrbios Ondulatórios de Leste (DOLs) são um dos principais sistemas meteorológicos que atuam no leste do Nordeste do Brasil (NEB) entre maio e julho.
Alex Soares da Silva   +5 more
doaj   +1 more source

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