搜索结果: 1-12 共查到“地球科学总论 Data Assimilation”相关记录12条 . 查询时间(0.027 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...
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...
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...
Evaluation of radiative transfer schemes for mesoscale model data assimilation: a case study
transfer schemes mesoscale model data
2010/1/27
The assimilation of Special Sensor Microwave Imager (SSM/I) data into the Mesoscale Model 5 (MM5) allows for improving the weather forecast. However the results suggested an update the Radiative Trans...
Streamflow data assimilation for soil moisture analysis
Streamflow data assimilation soil moisture analysis
2010/2/5
Streamflow depends on the soil moisture of a river catchment and can be measured with relatively high accuracy. The soil moisture in the root zone influences the latent heat flux and, hence, the quant...
Land-atmosphere interactions in an high resolution atmospheric simulation coupled with a surface data assimilation scheme
Land-atmosphere interactions high resolution atmospheric simulation data assimilation scheme
2009/12/8
A valid tool for the retrieving of the turbulent fluxes that characterize the surface energy budget is constituted by the remote sensing of land surface states. In this study sequences of satellite-de...
Simplified aerosol modeling for variational data assimilation
Simplified aerosol modeling variational data assimilation
2010/2/5
We have developed a simplified aerosol model together with its tangent linear and adjoint versions for the ultimate aim of optimizing global aerosol and aerosol precursor emission using variational da...
Marine geochemical data assimilation in an efficient Earth System Model of global biogeochemical cycling
Marine geochemical data assimilation Earth System Model global biogeochemical cycling
2010/1/14
We have extended the 3-D ocean based "Grid ENabled Integrated Earth system model" (GENIE-1) to help understand the role of ocean biogeochemistry and marine sediments in the long-term (~100 to 100 000 ...