Results 31 to 40 of about 690,215 (327)

Evaluation of Forecast Performance for Four Meteorological Models in Summer Over Northwestern China

open access: yesFrontiers in Earth Science, 2021
At present, numerical models, which have been used for forecasting services in northwestern China, have not been extensively evaluated. We used national automatic ground station data from summer 2016 to test and assess the forecast performance of the ...
Yuanpu Liu   +5 more
doaj   +1 more source

GenCast: Diffusion-based ensemble forecasting for medium-range weather [PDF]

open access: yesarXiv, 2023
Weather forecasts are fundamentally uncertain, so predicting the range of probable weather scenarios is crucial for important decisions, from warning the public about hazardous weather, to planning renewable energy use. Here, we introduce GenCast, a probabilistic weather model with greater skill and speed than the top operational medium-range weather ...
arxiv  

Mixed finite elements for numerical weather prediction

open access: yes, 2012
We show how two-dimensional mixed finite element methods that satisfy the conditions of finite element exterior calculus can be used for the horizontal discretisation of dynamical cores for numerical weather prediction on pseudo-uniform grids.
Arakawa   +29 more
core   +1 more source

Weakening seasonality of Indo-Pacific warm pool size in a warming world since 1950

open access: yesEnvironmental Research Letters, 2023
Seasonal variation of the Indo-Pacific warm pool (IPWP) plays an important role in oceanographic and climatological processes. While expansion of the IPWP under greenhouse warming has been widely discussed, the response of IPWP seasonality to climate ...
Qiuying Gan   +3 more
doaj   +1 more source

Stochastic climate theory and modeling [PDF]

open access: yes, 2014
Stochastic methods are a crucial area in contemporary climate research and are increasingly being used in comprehensive weather and climate prediction models as well as reduced order climate models.
Berner J   +35 more
core   +2 more sources

Transformer-based nowcasting of radar composites from satellite images for severe weather [PDF]

open access: yesarXiv, 2023
Weather radar data are critical for nowcasting and an integral component of numerical weather prediction models. While weather radar data provide valuable information at high resolution, their ground-based nature limits their availability, which impedes large-scale applications.
arxiv  

Description of Atmospheric Conditions at the Pierre Auger Observatory Using Meteorological Measurements and Models

open access: yes, 2012
Atmospheric conditions at the site of a cosmic ray observatory must be known well for reconstructing observed extensive air showers, especially when measured using the fluorescence technique.
B. Keilhauer   +15 more
core   +1 more source

A Modeling Study of Impact of Emission Control Strategies on PM2.5 Reductions in Zhongshan, China, Using WRF-CMAQ

open access: yesAdvances in Meteorology, 2016
A WRF-CMAQ modeling system is used to assess the impact of emission control strategies and weather conditions on haze pollution in Zhongshan, Guangdong Province, China.
Jianhua Mai   +6 more
doaj   +1 more source

M-ENIAC: A machine learning recreation of the first successful numerical weather forecasts [PDF]

open access: yesarXiv, 2023
In 1950 the first successful numerical weather forecast was obtained by solving the barotropic vorticity equation using the Electronic Numerical Integrator and Computer (ENIAC), which marked the beginning of the age of numerical weather prediction. Here, we ask the question of how these numerical forecasts would have turned out, if machine learning ...
arxiv  

A Time-spectral Approach to Numerical Weather Prediction

open access: yes, 2017
Finite difference methods are traditionally used for modelling the time domain in numerical weather prediction (NWP). Time-spectral solution is an attractive alternative for reasons of accuracy and efficiency and because time step limitations associated ...
Lindvall, Kristoffer   +2 more
core   +1 more source

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