搜索结果: 1-15 共查到“地球科学总论 assimilation”相关记录26条 . 查询时间(0.147 秒)
Global sensitivity analysis,probabilistic calibration,and predictive assessment for the data assimilation linked ecosystem carbon model
Global sensitivity analysis probabilistic calibration predictive assessment data assimilation linked ecosystem carbon model
2015/8/6
In this paper we propose a probabilistic framework for an uncertainty quantification (UQ) study of a carbon cycle model and focus on the comparison between steady-state and transient simulation setups...
Assimilation of surface NO2 and O3 observations into the SILAM chemistry transport model
surface NO2 chemistry transport model
2015/3/5
This paper describes the assimilation of trace
gas observations into the chemistry transport model SILAM
(System for Integrated modeLling of Atmospheric coMposition) using the 3D-Var method. Assimil...
The impact of aerosol optical depth assimilation on aerosol forecasts and radiative effects during a wild fire event over the United States
aerosol forecasts radiative effects
2014/12/19
The Gridpoint Statistical Interpolation three-dimensional variational data assimilation (DA) system coupled with the Weather Research and Forecasting/Chemistry (WRF/Chem) model was utilized to improve...
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
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...
Implementation of aerosol assimilation in Gridpoint Statistical Interpolation (v. 3.2) and WRF-Chem (v. 3.4.1)
aerosol assimilation Gridpoint Statistical Interpolation WRF-Chem
2014/12/19
Gridpoint Statistical Interpolation (GSI) is an assimilation tool that is used at the National Centers for Environmental Prediction (NCEP) in operational weather forecasting in the USA. In this articl...
Limiting the parameter space in the Carbon Cycle Data Assimilation System (CCDAS)
Limiting the parameter space Carbon Cycle Data Assimilation System
2014/12/19
Terrestrial ecosystem models are employed to calculate the sources and sinks of carbon dioxide between land and atmosphere. These models may be heavily parameterised. Where reliable estimates are unav...
Regional scale ozone data assimilation using an ensemble Kalman filter and the CHIMERE chemical transport model
Regional scale ozone data ensemble Kalman fi lter
2014/12/18
An ensemble Kalman filter (EnKF) has been coupled to the CHIMERE chemical transport model in order to
assimilate ozone ground-based measurements on a regional
scale. The number of ensembles is...
A variational data assimilation system for soil–atmosphere flux estimates for the Community Land Model (CLM3.5)
data assimilation system soil–atmosphere fl ux estimates
2014/12/18
This paper presents the development and implementation of a spatio-temporal variational data assimilation
system (4D-var) for the soil–vegetation–atmosphere transfer
model “Community Land Model” (CL...
Assimilation of OMI NO2 retrievals into the limited-area chemistry-transport model DEHM (V2009.0) with a 3-D OI algorithm
OMI NO2 retrievals limited-area chemistry-transport model DEHM 3-D OI algorithm
2014/12/17
Data assimilation is the process of combining real-world observations with a modelled geophysical field. The increasing abundance of satellite retrievals of atmospheric trace gases makes chemical data...
Quantifying the model structural error in carbon cycle data assimilation systems
Quantifying the model structural error carbon cycle data assimilation systems
2014/12/17
This study explores the impact of the structural error of biosphere models when assimilating net ecosystem exchange (NEE) measurements or CO2 concentration measurements to optimise uncertain model par...
Better constraints on the sea-ice state using global sea-ice data assimilation
Better constraints sea-ice state global sea-ice data assimilation
2014/12/10
Short-term and decadal sea-ice prediction systems need a realistic initial state, generally obtained using ice–ocean model simulations with data assimilation. However, only sea-ice concentration and v...
Construction of non-diagonal background error covariance matrices for global chemical data assimilation
Chemical data assimilation To optimize the noise Model predictions Chemical state
2014/12/9
Chemical data assimilation attempts to optimally use noisy observations along with imperfect model predictions to produce a better estimate of the chemical state of the atmosphere. It is widely accept...
Discharge assimilation in a distributed flood forecasting model
Discharge assimilation forecasting model
2010/1/27
In the field of operational flood forecasting, uncertainties linked to hydrological forecast are often crucial. In this work, data assimilation techniques are employed to improve hydrological variable...
EnKF assimilation of simulated spaceborne Doppler observations of vertical velocity: impact on the simulation of a supercell thunderstorm and implications for model-based retrievals
EnKF velocity
2010/1/27
Recently, a number of investigations have been made that point to the robust effectiveness of the Ensemble Kalman Filter (EnKF) in convective-scale data assimilation. These studies have focused on the...
Impact of the assimilation of conventional data on the quantitative precipitation forecasts in the Eastern Mediterranean
data Eastern Mediterranean
2010/1/27
This study is devoted to the evaluation of the role of assimilation of conventional data on the quantitative precipitation forecasts at regional scale. The conventional data included surface station r...