Results 21 to 30 of about 12,709 (265)

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

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

A time-spectral approach to numerical weather prediction [PDF]

open access: yesComputer Physics Communications, 2018
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 with causal, CFL-like critera are avoided.
Jan Scheffel   +2 more
openaire   +3 more sources

Evaluation of Three Reanalysis Soil Temperature Datasets with Observation Data over China

open access: yesEarth, 2022
Soil temperature is a crucial parameter in surface emissions of carbon, water, and energy exchanges. This study utilized the soil temperature of 836 national basic meteorological observing stations over China to evaluate three soil temperature products ...
Cailing Zhao   +5 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

Weather Prediction by Numerical Process. [PDF]

open access: yesThe American Mathematical Monthly, 1923
The idea of forecasting the weather by calculation was first dreamt of by Lewis Fry Richardson. He set out in this book a detailed algorithm for systematic numerical weather prediction. The method of computing atmospheric changes, which he mapped out in great detail in this book, is essentially the method used today.
Albert A. Bennett, L. F. Richardson
openaire   +2 more sources

Numerical Weather Prediction

open access: yesEos, Transactions American Geophysical Union, 1960
This report, like its predecessor of four years ago, concentrates on the prediction of atmospheric flow patterns by objective methods that are based on the laws of physics. Purely statistical‐empirical methods are not treated.
openaire   +1 more source

Numerical Weather Prediction on the Supercomputer Toolkit [PDF]

open access: yes, 2002
The Supercomputer Toolkit constructs parallel computation networks by connecting processor modules. These connections are set by the user prior to a run and are static during the run. The Technion's Toolkit prototype was used to run a simplified version of the PSU/NCAR MM5 mesoscale model [9].
Pinhas Alpert   +3 more
openaire   +1 more source

Polarimetric SAR Applications of Sea Ice: A Review

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Fully polarimetric (FP) and compact polarimetry (CP) modes are advanced technologies of synthetic aperture radar (SAR). Compared to the parameters available from traditional orthogonal backscatter coefficients, these technologies offer extra parameters ...
Mohammed Shokr, Mohammed Dabboor
doaj   +1 more source

Feasibility analysis of early warning of sea fog within six hours for two harbors in the South China Sea

open access: yesFrontiers in Earth Science, 2022
Sea fog significantly impacts harbor operations, at times even causing navigation to cease. This study examines two harbors in the north of the South China Sea, analyzing the feasibility of increasing each harbor’s sea fog early warning capability to 6 h
Mingsen Zhou   +7 more
doaj   +1 more source

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