Results 31 to 40 of about 471 (243)

Improving Regional Model Skills During Typhoon Events: A Case Study for Super Typhoon Lingling Over the Northwest Pacific Ocean

Frontiers in Marine Science, 2021
The ability of forecasting systems to simulate tropical cyclones is still insufficient, and currently, there is an increased interest in improving model performance for intense tropical cyclones. In this study, the impact of reducing surface drag at high
Delei Li, Delei Li, Delei Li, Joanna Staneva, Jean-Raymond Bidlot, Sebastian Grayek, Yuchao Zhu, Yuchao Zhu, Yuchao Zhu, Baoshu Yin, Baoshu Yin, Baoshu Yin, Baoshu Yin, Baoshu Yin   +13 more
doaj   +1 more source

Evaluation of Precipitation in the Chinese Regional Reanalysis Using Satellite Estimates, Gauge-Based Observations and Global Reanalysis

Frontiers in Earth Science, 2021
Two high-resolution Chinese regional reanalysis (CNRR) datasets at a resolution of 18 km during the period of 1998–2009 are generated by Gridpoint Statistical Interpolation (GSI) data assimilation system and spectral nudging (SN) method.
Yutong Lu, Yutong Lu, Min Shao, Juan Fang, Juan Fang, Yinong Pan, Yinong Pan, Jianping Tang, Jianping Tang   +8 more
doaj   +1 more source

Development of a Data Assimilation Method Using Vibration Equation for Large‐Eddy Simulations of Turbulent Boundary Layer Flows

Journal of Advances in Modeling Earth Systems, 2020
In order to improve the simulation accuracy, it is effective to use a data assimilation technique which is capable of reproducing more realistic simulated states by incorporating observational data into simulation models.
Hiromasa Nakayama, Tetsuya Takemi
doaj   +1 more source

The influence of spectral nudging on typhoon formation in regional climate models

Environmental Research Letters, 2012
Regional climate models can successfully simulate tropical cyclones and typhoons. This has been shown and was evaluated for hindcast studies of the past few decades. But often global and regional weather phenomena are not simulated at the observed location, or occur too often or seldom even though the regional model is driven by global reanalysis data ...
Feser, F., Barcikowska, M.
openaire   +3 more sources

Sensitivity of the WRF model to PBL parametrisations and nesting techniques: evaluation of wind storms over complex terrain [PDF]

Geoscientific Model Development, 2015
Simulating surface wind over complex terrain is a challenge in regional climate modelling. Therefore, this study aims at identifying a set-up of the Weather Research and Forecasting Model (WRF) model that minimises systematic errors of surface winds in ...
J. J. Gómez-Navarro, C. C. Raible, S. Dierer   +2 more
doaj   +1 more source

Key ingredients in regional climate modelling for improving the representation of typhoon tracks and intensities [PDF]

Hydrology and Earth System Sciences
There is evidence of an increased frequency of rapid intensification events of tropical cyclones (TCs) in global offshore regions. This will not only result in increased peak wind speeds but may lead to more intense heavy precipitation events, leading to
Q. Sun, P. Olschewski, J. Wei, Z. Tian, Z. Tian, L. Sun, L. Sun, H. Kunstmann, H. Kunstmann, P. Laux, P. Laux   +10 more
doaj   +1 more source

Convection-Permitting Regional Climate Simulations Over Tibetan Plateau: Re-Initialization Versus Spectral Nudging [PDF]

Climate Dynamics, 2021
Abstract Two regional climate simulation experiments (spectral nudging and re-initialization) at convection-permitting scale are conducted using the WRF model over the Tibetan Plateau (TP). The surface air temperature (T2m) and the precipitation in summer during 2016–2018 are evaluated against the in-situ station observations and the Global ...
Mengnan Ma, Pinhong Hui, Dongqing Liu, Peifeng Zhou, Jianping Tang   +4 more
openaire   +2 more sources

How the meteorological spectral nudging impacts on aerosol radiation clouds interactions?

, 2023
Abstract. Meteorological and chemical modelling at the regional scale involve nudging to remain consistent with large-scale meteorology and meteo-chemical coupling to properly consider the interactions between aerosols, clouds and radiations. Both types of process can change meteorology, but not for the same reasons and not necessarily in the same way.
Laurent Menut, Bertrand Bessagnet, Arineh Cholakian, Guillaume Siour, Sylvain Mailler, Romain Pennel   +5 more
openaire   +2 more sources

Optimizing WRF Spectral Nudging to Improve Heatwave Forecasts: A Case Study of the Sichuan Electricity Grid

Atmosphere
Accurate forecasting of heatwaves is critical for ensuring the safe operation of electricity grids. Focusing on the complex terrain of Sichuan, China, this study investigates the optimization of spectral nudging parameters within the Weather Research and
Shuanglong Jin, Shun Li, Bo Wang, Hao Shi, Shanhong Gao   +4 more
doaj   +1 more source

Assessing the Effectiveness of Spectral Nudging in Improving Tropical Cyclone Track Simulations over the Western North Pacific Using the WRF Model

Atmosphere
Improving tropical cyclone (TC) track forecasts is critical for enhancing disaster prevention and mitigation efforts. This study evaluates the effectiveness of the spectral nudging (SN) technique in simulating TC tracks with diverse path patterns over ...
Weiwei Huang, Lian Xie, Fei Hong, Jiwen Zhu   +3 more
doaj   +1 more source