搜索结果: 1-15 共查到“理学 the kalman filter”相关记录20条 . 查询时间(0.093 秒)
Comparison of the ensemble Kalman filter and 4D-Var assimilation methods using a stratospheric tracer transport model
the ensemble Kalman filter 4D-Var assimilation methods stratospheric tracer transport model
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2014/12/19
An ensemble Kalman filter (EnKF) assimilation method is applied to the tracer transport using the same stratospheric transport model as in the four-dimensional variational (4D-Var) assimilation system...
Error reduction in GPS datum conversion using Kalman filter in diverse scenarios
Datum eastings northings Kalman filter GPS coordinate conversion
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2014/11/25
The coordinates of a location obtained from a Global Positioning System (GPS) receiver
depend on the type of environments. This paper discusses the errors in GPS coordinate
conversion from the Wor...
Sensitivity tests for an ensemble Kalman filter for aerosol assimilation
an ensemble Kalman filter aerosol assimilation
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2010/8/16
We present sensitivity tests for a global aerosol assimilation system utilizing AERONET observations of AOT (aerosol optical thickness) and AAE (aerosol Ångström exponent). The assimilation...
Applying an ensemble Kalman filter to the assimilation of AERONET observations in a global aerosol transport model
Kalman filter assimilation AERONET observations global aerosol transport model
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2010/3/16
We present a global aerosol assimilation system based on an Ensemble Kalman filter, which we believe leads to a significant improvement in aerosol fields. The ensemble allows realistic, spatially and ...
Primary vertex reconstruction based on the Kalman filter technique at BESⅢ
primary vertex Kalman method BESⅢ
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2009/12/24
Primary vertex reconstruction is crucial to estimate the beam profile in collision experiments. We study the principle of an iterative process, called the Kalman filter method, and apply it to primary...
A comparison of assimilation results from the ensemble Kalman Filter and a reduced-rank extended Kalman Filter
assimilation results ensemble Kalman Filter reduced-rank extended Kalman Filter
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2009/11/12
The goal of this study is to compare the performances of the ensemble Kalman filter and a reduced-rank extended Kalman filter when applied to different dynamic regimes. Data assimilation experiments a...
A Kalman filter application to a spectral wave model
Kalman filter spectral wave model
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2009/11/11
A sequential time dependent data assimilation scheme based on the Kalman filter is applied to a spectral wave model. Usually, the first guess covariance matrices used in optimal interpolation schemes ...
Ensemble Kalman filter assimilation of temperature and altimeter data with bias correction and application to seasonal prediction
Kalman filter assimilation temperature and altimeter data bias correction and application seasonal prediction
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2009/11/9
To compensate for a poorly known geoid, satellite altimeter data is usually analyzed in terms of anomalies from the time mean record. When such anomalies are assimilated into an ocean model, the bias ...
Parameter estimation in an atmospheric GCM using the Ensemble Kalman Filter
Parameter estimation atmospheric GCM Ensemble Kalman Filter
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2009/11/9
We demonstrate the application of an efficient multivariate probabilistic parameter estimation method to a spectral primitive equation atmospheric GCM. The method, which is based on the Ensemble Kalma...
An implementation of the Local Ensemble Kalman Filter in a quasi geostrophic model and comparison with 3D-Var
Local Ensemble Kalman Filter quasi geostrophic model 3D-Var
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2009/11/2
We perform data assimilation experiments with a widely used quasi-geostrophic channel model and compare the Local Ensemble Kalman Filter (LEKF) with a 3D-Var developed for this model. The LEKF shows a...
Comparison between Local Ensemble Transform Kalman Filter and PSAS in the NASA finite volume GCM–perfect model experiments
Local Ensemble Transform Kalman Filter PSAS NASA finite volume GCM–perfect model
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2009/11/2
This paper compares the performance of the Local Ensemble Transform Kalman Filter (LETKF) with the Physical-Space Statistical Analysis System (PSAS) under a perfect model scenario. PSAS is a 3D-Var as...
Kalman Filter Empirical Fitting on Monthly Rainfall-Runoff Responses
Kalman Filter Monthly Rainfall-Runoff Responses
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2009/10/28
The majority of the methods for fitting rainfall-runoff Kalman filters use the
statistical characteristics of the input (rainfall) and the output (runoff) series
according to the systems analysis an...
Joint State and Parameter Estimation For Biochemical Dynamic Pathways With Iterative Extended Kalman Filter：Comparison With Dual State and Parameter Estimation
Biochemical Dynamic Pathways extended Kalman filter Parameter Estimation
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2009/9/24
A biochemical dynamic pathway is usually modeled as a nonlinear system described by a set of nonlinear ODEs. In most cases, only partial states can be measured. Moreover, the system parameters, reacti...
Estimating surface CO2 fluxes from space-borne CO2 dry air mole fraction observations using an ensemble Kalman Filter
surface CO2 fluxes space-borne CO2 ensemble Kalman Filter
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2009/5/6
We have developed an ensemble Kalman Filter (EnKF) to estimate 8-day regional surface fluxes of CO2 from space-borne CO2 dry-air mole fraction observations (XCO2) and evaluate the approach using a ser...
Toward the Application of the Kalman Filter to Regional Open Ocean Modeling
Kalman Filter Regional Open Ocean Modeling
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2009/1/10
As ocean models improve, assimilation of data with the help of models becomes increasingly important. The Kalman filter provides a method for assimilation of data that are arbitrarily distributed in t...