搜索结果: 76-90 共查到“理学 inversion”相关记录105条 . 查询时间(0.796 秒)
Iterative Solution of the Electrodynamical Inversion Problem for Vertically Varying Earth
Iterative Solution Electrodynamical Inversion Problem Vertically Varying Earth
2009/6/15
Iterative Solution of the Electrodynamical Inversion Problem for Vertically Varying Earth.
An Automated Finite Element Mesh Generation and Element Coding in 2-D Electromagnetic Inversion
finite element method automated mesh generation 2-D electromagnetic inversion
2009/6/10
An automated mesh generation and element coding in finite element modelling is developed for
the optimisation of geometrical and physical model parameters of the 2-D structures. The approach is based...
A fast TDR-inversion technique for the reconstruction of spatial soil moisture content
soil moisture TDR-inversion technique
2009/5/18
Spatial moisture distribution in natural soil or other material is a valuably information for many applications. Standard measurement techniques give only mean or punctual results. Therefore a new inv...
Inverting geodetic time series with a principal component analysis-based inversion method
Inverting geodetic time series a principal component analysis-based inversion method
2014/4/15
The Global Positioning System (GPS) system now makes it possible to monitor deformation of the Earth’s surface along plate boundaries with unprecedented accuracy. In theory, the spatiotemporal evoluti...
An analytical inversion method for determining regional and global emissions of greenhouse gases: Sensitivity studies and application to halocarbons
analytical inversion method determining regional and global emissions greenhouse gases halocarbons
2009/3/13
A new analytical inversion method has been developed to determine the regional and global emissions of long-lived atmospheric trace gases. It exploits in situ measurement data from three global networ...
A joint inversion of apparent resistivity and peak-period of microtremor horizontal-to-vertical spectrum for shallow soil profile
microtremors horizontal-to-vertical spectrum S-wave velocity vertical electrical sounding resistivity simulated annealing
2009/3/5
We propose a new technique for a joint inversion of apparent resistivity data from a vertical electrical sounding and peak-period of spectral ratio of horizontal microtremors to vertical one in order ...
Effectiveness of multi-mode surface wave inversion in shallow engineering site investigations
surface wave higher mode sensitivity phase velocity inversion multi-mode Vs structure
2009/3/5
Inversion of multi-mode surface-wave phase velocity for shallow engineering site investigation has received much attention in recent years. A sensitivity analysis and inversion of both synthetic and f...
Technical note: an interannual inversion method forcontinuous CO2 data
interannual inversion method forcontinuous CO2 data
2009/2/24
A sequential synthesis inversion method is described to estimate CO2 sources from continuous atmospheric data. The sequential method makes the problem computationally feasible. The method is assessed ...
Two decades of OH variability as inferred by an inversion of atmospheric transport and chemistry of methyl chloroform
OH variability atmospheric transport chemistry of methyl chloroform
2009/2/18
We developed an iterative inverse method to infer inter-annual sources and sinks of methyl chloroform (MCF) from atmospheric measurements, on a monthly basis. The methodology is presented and used to ...
Inversion of CO and NOx emissions using the adjoint of the IMAGES model
CO NOx emissions adjoint IMAGES model
2009/2/9
We use ground-based observations of CO mixing ratios and vertical column abundances together with tropospheric NO2 columns from the GOME satellite instrument as constraints for improving the global an...
Comparison of the inversion algorithms applied to the ozone vertical profile retrieval from SCIAMACHY limb measurements
inversion algorithms ozone vertical profile SCIAMACHY limb
2008/12/19
This paper is devoted to an intercomparison of ozone vertical profiles retrieved from the measurements of scattered solar radiation performed by the SCIAMACHY instrument in the limb viewing geometry. ...
The North Atlantic Circulation in the Early 1980s-An Estimate from Inversion of a Finite-Difference Model
North Atlantic Circulation Finite-Difference Model
2008/12/18
A finite-difference model of the North Atlantic is constructed for the purpose Of making an estimate of the circulation through an inverse calculation. The database is eclectic, and includes hydrograp...
Emission rate and chemical state estimation by 4-dimensional variational inversion
Emission rate chemical state 4-dimensional variational inversion
2008/12/15
This study aims to assess the potential and limits of an advanced inversion method to estimate pollutant precursor sources mainly from observations. Ozone, sulphur dioxide, and partly nitrogen oxides ...
Four-dimensional variational data assimilation for inverse modelling of atmospheric methane emissions: method and comparison with synthesis inversion
Four-dimensional variational data atmospheric methane synthesis inversion
2008/11/25
A four-dimensional variational (4D-Var) data assimilation system for inverse modelling of atmospheric methane emissions is presented. The system is based on the TM5 atmospheric transport model. It can...
A method for evaluating spatially-resolved NOx emissions using Kalman filter inversion, direct sensitivities, and space-based NO2 observations
NOx Kalman filter space-based NO2
2008/11/20
An inverse modeling method was developed and tested for identifying possible biases in emission inventories using satellite observations. The relationships between emission inputs and modeled ambient...