Results 21 to 30 of about 673,458 (365)

Offline Diagnostics of Skin Sea Surface Temperature from a Prognostic Scheme and Its Application in Typhoon Forecasting Using the CMA-TRAMS Model over South China

open access: yesAtmosphere, 2022
In the Tropical Regional Atmospherical Model System of South China of the China Meteorological Administration (CMA-TRAMS), the skin sea surface temperature (Ts) remains fixed during the forecast time.
Yanxia Zhang   +3 more
doaj   +1 more source

Systematic diurnal bias of the CMA-MESO model in southern China: Characteristics and correction

open access: yesFrontiers in Earth Science, 2023
Model error is an important source of numerical weather prediction (NWP) errors. Among model errors, the systematic diurnal bias plays an important role in high-resolution numerical weather prediction models.
Yuxiao Chen   +7 more
doaj   +1 more source

10–30‐day moist static energy evolutions related to the persistent heavy rainfall event in different stages of flood season over South China

open access: yesAtmospheric Science Letters, 2023
In this study, the flood season in South China (SC) was divided into three stages: two first rainy seasons (FRSs) around the South China Sea summer monsoon onset and one second rainy season when Typhoon prevails, denoted as FRS1, FRS2, and SRS ...
Bin Zheng, Ailan Lin, Yanyan Huang
doaj   +1 more source

The Evaluation of Return Radiosonde Temperature using GNSS Radio Occultation Retrievaled Temperature

open access: yesGaoyuan qixiang, 2023
It is necessary to evaluate the quality of a new type of observation data before using it for data assimilation.Based on GNSS radio occultation (RO) and ERA-Interim reanalysis data, the quality of temperature in the ascent, drift and descent stage of ...
Na RONG   +3 more
doaj   +1 more source

A high-order conservative collocation scheme and its application to global shallow-water equations [PDF]

open access: yesGeoscientific Model Development, 2015
In this paper, an efficient and conservative collocation method is proposed and used to develop a global shallow-water model. Being a nodal type high-order scheme, the present method solves the pointwise values of dependent variables as the unknowns ...
C. Chen, X. Li, X. Shen, F. Xiao
doaj   +1 more source

A Short-Term Wind Speed Forecasting Model Based on a Multi-Variable Long Short-Term Memory Network

open access: yesAtmosphere, 2021
Accurately forecasting wind speed on a short-term scale has become essential in the field of wind power energy. In this paper, a multi-variable long short-term memory network model (MV-LSTM) based on Pearson correlation coefficient feature selection is ...
Anqi Xie   +4 more
doaj   +1 more source

Insights into characteristics and formation mechanisms of secondary organic aerosols in the Guangzhou urban area [PDF]

open access: yesAtmospheric Chemistry and Physics, 2023
Emission controls have substantially brought down aerosol pollution in China; however, aerosol mass reductions have slowed down in recent years in the Pearl River Delta (PRD) region, where secondary organic aerosol (SOA) formation poses a major challenge
M. Zhai   +19 more
doaj   +1 more source

Short-term precipitation prediction using deep learning [PDF]

open access: yesGeophysical Research Letters, 49 (2022), 2021
Accurate weather prediction is essential for many aspects of life, notably the early warning of extreme weather events such as rainstorms. Short-term predictions of these events rely on forecasts from numerical weather models, in which, despite much improvement in the past decades, outstanding issues remain concerning model uncertainties, and ...
arxiv   +1 more source

Modernization of Atmospheric Physics Parameterization in Canadian NWP

open access: yesJournal of Advances in Modeling Earth Systems, 2019
Atmospheric physics is represented in numerical models by parameterizations that use resolved‐scale information to estimate the effects of physical processes on the atmospheric state.
R. McTaggart‐Cowan   +11 more
doaj   +1 more source

Influence of the upper gravity-wave damping layer on precipitation over complex terrain

open access: yesFrontiers in Environmental Science, 2022
The upper boundary condition of a numerical model can significantly influence the model prediction results. This study used the Weather Research and Forecasting model to introduce the Rayleigh damping layer in the complex terrain of southern Gansu, China.
H. X. Duan   +12 more
doaj   +1 more source

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