State and Parameter Estimation with an SIR Particle Filter in a Three-Dimensional Groundwater Pollutant Transport Model

Based on three-dimensional hydrodynamic model, moving boundary technique and embedded pollutant transport model, the concentration field of the soluble and conservative liquid chemicals spilled into the tidal river was calculated and the chemicals movement around a jetty at DA Liaohe was simulated. By analyzing the simulation results, the chemicals motion law with tide and their concentration field on and in water were deduced.

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Three-dimensional pollutant transport model for the Pearl River Estuary

Water Research ◽

10.1016/s0043-1354(01)00400-6 ◽

2002 ◽

Vol 36 (8) ◽

pp. 2029-2039 ◽

Cited By ~ 64

Author(s):

K.W. Chau ◽

Y.W. Jiang

Keyword(s):

Transport Model ◽

Three Dimensional ◽

River Estuary ◽

Pollutant Transport ◽

Pearl River Estuary ◽

Pearl River ◽

The Pearl River Estuary ◽

The Pearl River

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Three-Dimensional Joint Parameter Estimation Algorithm Based on Service Antenna

2020 International Conference on Wireless Communications and Signal Processing (WCSP) ◽

10.1109/wcsp49889.2020.9299753 ◽

2020 ◽

Author(s):

Yuan She ◽

Xiaolong Yang ◽

Mu Zhou ◽

Zengshan Tian

Keyword(s):

Parameter Estimation ◽

Three Dimensional ◽

Estimation Algorithm ◽

Parameter Estimation Algorithm

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Energetic particle induced intra-seasonal variability of ozone inside the Antarctic polar vortex observed in satellite data

Atmospheric Chemistry and Physics ◽

10.5194/acp-15-3327-2015 ◽

2015 ◽

Vol 15 (6) ◽

pp. 3327-3338 ◽

Cited By ~ 19

Author(s):

T. Fytterer ◽

M. G. Mlynczak ◽

H. Nieder ◽

K. Pérot ◽

M. Sinnhuber ◽

...

Keyword(s):

Geomagnetic Activity ◽

Seasonal Variability ◽

Transport Model ◽

Three Dimensional ◽

Polar Vortex ◽

Quiet Time ◽

Significance Level ◽

Antarctic Polar Vortex ◽

Ap Index ◽

The Antarctic

Abstract. Measurements from 2002 to 2011 by three independent satellite instruments, namely MIPAS, SABER, and SMR on board the ENVISAT, TIMED, and Odin satellites are used to investigate the intra-seasonal variability of stratospheric and mesospheric O3 volume mixing ratio (vmr) inside the Antarctic polar vortex due to solar and geomagnetic activity. In this study, we individually analysed the relative O3 vmr variations between maximum and minimum conditions of a number of solar and geomagnetic indices (F10.7 cm solar radio flux, Ap index, ≥ 2 MeV electron flux). The indices are 26-day averages centred at 1 April, 1 May, and 1 June while O3 is based on 26-day running means from 1 April to 1 November at altitudes from 20 to 70 km. During solar quiet time from 2005 to 2010, the composite of all three instruments reveals an apparent negative O3 signal associated to the geomagnetic activity (Ap index) around 1 April, on average reaching amplitudes between −5 and −10% of the respective O3 background. The O3 response exceeds the significance level of 95% and propagates downwards throughout the polar winter from the stratopause down to ~ 25 km. These observed results are in good qualitative agreement with the O3 vmr pattern simulated with a three-dimensional chemistry-transport model, which includes particle impact ionisation.

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