Results 241 to 250 of about 4,809 (272)

Effects of Spectral Nudging in WRF on Arctic Temperature and Precipitation Simulations

Journal of Climate, 2013
Abstract Spectral (interior) nudging is a way of constraining a model to be more consistent with observed behavior. However, such control over model behavior raises concerns over how much nudging may affect unforced variability and extremes.
Glisan, Justin, Gutowski, William, Cassino, John, Higgins, Matthew   +3 more
openaire   +2 more sources

Simulation of Mixed Layer Depth in the Northeast Pacific Utilizing Spectral Nudging

Journal of Physical Oceanography, 2011
Abstract A numerical model, the Parallel Ocean Program (POP), is used to run a 46-yr simulation of the North Pacific Ocean beginning in January 1960. The model has 0.25° horizontal resolution and 28 vertical levels, and it employs spectral nudging, which, unlike standard nudging, nudges only specific frequency and wavenumber bands.
Michael W. Stacey, Shawn M. Donohue
openaire   +1 more source

Effects of Spectral Nudging on Oceanic States in a Coarse-Resolution Model

Atmosphere-Ocean, 2015
ABSTRACTA 1-degree global model is used to investigate the skill of spectral nudging at coarse resolution by performing two numerical experiments, one with spectral nudging and the other without. In the spectral nudging experiment, the model temperature and salinity are nudged to an observed climatological monthly-mean field.
Zeliang Wang, Guoqi Han, Frederic Dupont
openaire   +1 more source

Effects of spectral nudging on the 2010 East Asia summer monsoon using WRF model

Chinese Journal of Oceanology and Limnology, 2012
The performance of spectral nudging in an investigation of the 2010 East Asia summer monsoon was assessed using the Weather Research and Forecasting (WRF) model, forced by 1-degree NCEP Global Final Analysis (FNL). Two pairs of experiments were made, spectral nudging (SP) and non-spectral nudging (NOSP), with five members in each group.
Haixia Shan, Yuping Guan, Jianping Huang
openaire   +1 more source

Impacts of the spectral nudging technique on simulation of the East Asian summer monsoon

Theoretical and Applied Climatology, 2009
This study assesses the performance of spectral nudging methodology in dynamical regional climate downscaling for summer climate over East Asia. The regional climate model NCAR-MM5v3 was used to dynamically downscale the 2.5-degree NCEP/NCAR reanalysis (NNRP) data onto 50-km regional grids. The main focus is the model’s simulation of precipitation. The
Jianping Tang, Shi Song, Jian Wu
openaire   +1 more source

Impact of spectral nudging on regional climate simulation over CORDEX East Asia using WRF

Climate Dynamics, 2016
In this study, the impact of the spectral nudging method on regional climate simulation over the Coordinated Regional Climate Downscaling Experiment East Asia (CORDEX-EA) region is investigated using the Weather Research and Forecasting model (WRF). Driven by the ERA-Interim reanalysis, five continuous simulations covering 1989–2007 are conducted by ...
Jianping Tang, Shuyu Wang, Xiaorui Niu, Pinhong Hui, Peishu Zong, Xueyuan Wang   +5 more
openaire   +1 more source

Impact of spectral nudging on the downscaling of tropical cyclones in regional climate simulations

Advances in Atmospheric Sciences, 2016
This study investigated the simulations of three months of seasonal tropical cyclone (TC) activity over the western North Pacific using the Advanced Research WRF Model. In the control experiment (CTL), the TC frequency was considerably overestimated. Additionally, the tracks of some TCs tended to have larger radii of curvature and were shifted eastward.
Suk-Jin Choi, Dong-Kyou Lee
openaire   +1 more source

Climate storylines using the spectral nudged simulations with IFS-FESOM

We are presenting our efforts to incorporate spectral nudging capabilities into the development and assessment of model-driven storyline scenarios using a km-scale coupled climate model. Working within the framework of the EU’s Destination Earth project, we are working towards this objective by employing the ocean sea-ice model FESOM coupled ...
Amal John, Sebastian Beyer, Marylou Athanase, Antonio Sánchez Benítez, Helge Goessling, Thomas Jung   +5 more
openaire   +1 more source

Sensitivity of a Spectrally Filtered and Nudged Limited-Area Model to Outer Model Options

Monthly Weather Review, 1996
Abstract Numerical filters required to control spatial computational modes in a limited-area model (LAM) that uses the unstaggered. A grid are developed and tested over the complex topography of the Great Basin of the western United States. The filters are founded upon Fourier expansions of forecast deviation fields and function equally effectively for
Kim M. Waldron, Jan Paegle, John D. Horel   +2 more
openaire   +1 more source

Attribution of European Heatwaves to Global Warming Using Spectrally Nudged Storylines

This study employs Spectrally Nudged Storylines to attribute heatwaves to anthropogenic global warming. Utilizing high-resolution global (ECHAM) and regional (CCLM) climate models, we aim to discern the influence of anthropogenic climate change on the characteristics of European heatwaves observed in the last decade.
Dalena Leon, Frauke Feser, Linda Van Garderen   +2 more
openaire   +1 more source