This book describes the methods and numerical approaches for data assimilation in geodynamical models and presents several applications of the described methodology in relevant case studies.
Author: Alik Ismail-Zadeh
This book describes the methods and numerical approaches for data assimilation in geodynamical models and presents several applications of the described methodology in relevant case studies. The book starts with a brief overview of the basic principles in data-driven geodynamic modelling, inverse problems, and data assimilation methods, which is then followed by methodological chapters on backward advection, variational (or adjoint), and quasi-reversibility methods. The chapters are accompanied by case studies presenting the applicability of the methods for solving geodynamic problems; namely, mantle plume evolution; lithosphere dynamics in and beneath two distinct geological domains – the south-eastern Carpathian Mountains and the Japanese Islands; salt diapirism in sedimentary basins; and volcanic lava flow. Applications of data-driven modelling are of interest to the industry and to experts dealing with geohazards and risk mitigation. Explanation of the sedimentary basin evolution complicated by deformations due to salt tectonics can help in oil and gas exploration; better understanding of the stress-strain evolution in the past and stress localization in the present can provide an insight into large earthquake preparation processes; volcanic lava flow assessments can advise on risk mitigation in the populated areas. The book is an essential tool for advanced courses on data assimilation and numerical modelling in geodynamics.
454 461 471 471 473 478 7.4.3 Variational Formulation of the Problem 7.4.4 Numerical Solution 7.5 Computer Implementation of the Algorithms for Contact
Problems 7.5.1 Introduction 7.5.2 Conjugate Gradient Method with Constraints
Author: Jirí Nedoma
Publisher: John Wiley & Sons Incorporated
The aim of this monograph is to provide mathematical bases and methods for analysing geophysical problems for global geodynamic models of the Earth and planets. If presents computational methods, based on variational formulations of model problems used in all areas of geosciences. Tectonic plates, seismic waves propagation, geothermal and electromagnetic fields, global geodynamics, geomagnetic and gravity models are all addressed. Emphasis is placed on the variational approach to the problems studied, which involves numerical analysis, whilst preserving the physical nature of the problems. The book details numerous applications of geodynamic and plate tectonic models which relate to constructions such as nuclear power plants, high level radioactive waste repositories, deep mines and water dams, under critical conditions.
Numerical inversion of geophysical data does not normally require user
interaction apart from the selection of initial ... Method Introduction Geophysical
inversion technology has vastly improved the interpretability of survey data . ... (
2003 ) demonstrate examples of IEC used to attain targets during geodynamic modelling .
Why the Sacramento Delta Area Differs from Other Parts of the Great Valley : Numerical Modeling of Thermal Structure and Thermal ... INTRODUCTION While
many excellent studies have been devoted to thermal modeling of subduction
zones ( e.g. , [ McKenzie , 1969 ... In this paper , we consider a geodynamic model of thermal evolution and tectonic subsidence of a forearc basin and
calibrate it using ...
Author: Universitetet i Bergen. Dept. of Applied MathematicsPublish On: 1999
The general background for the reservoir flow model is reviewed , and the main
features of the numerical algorithms are presented . ... Introduction . 2 . The
Reservoir Flow Model . 3 . Basic Mathematical Theory . 4 . The Operator Splitting
Algorithms . 5 . ... Models for flow dynamics should therefore be coupled to a geodynamical model Date : January 19 , 1999 . describing the dynamics of the
Author: Universitetet i Bergen. Dept. of Applied Mathematics
Details of numerical results are discussed . Keywords : Aleutian arc ; finite
element method ; numerical modelling ; obduction ; plate tectonics 1. INTRODUCTION In order to review the general characteristics of the collision
zones , an example ...
Thus , papers for the introduction and first two scientific themes are incorporated
in the first issue ( April , Vol . ... Perry and Forte review the methodology used for
joint seismic and geodynamic modeling of the chemical contributions to the ... In
a companion paper , Jamieson et al . explain some of the criteria for success in
integrating numerical models with data , using examples from the Grenville
Finite element modelling of the recent - present deformation pattern in the
Calabrian arc and surrounding regions Dario ... Numerical experiments show that
this convergence causes the lateral escape of crustal wedges in the Calabrian
arc and the adjacent African margin ( Sicily ) . ... deformations actually observed .
Key words geodynamic modelling – finite elements – Mediterranean 1 . Introduction ...
NUMERICAL COMPUTATION OF THE MAGNETOTELLURIC FIELD FOR TWO -
DIMENSIONAL STRUCTURES Adam CICHY , Juliusz ... The two - dimensional model of the geoelectrical cross - section has been assumed in which the
conductivity of the overburden 6 ... Introduction For carrying out actual
geophysical - geological interpretation of the magnetotelluric observation a
knowledge of the ...
2.1 Introduction The role of temperature - dependent viscosity in mantle
convection has long been recognized as being of extreme importance in geodynamics and the Earth's thermal history ( e.g. , Turcotte and Torrance , 1971
; Mckenzie and ...
This second edition of the important introductory text for earth scientists has been thoroughly revised and extended.
Author: Kurt Stüwe
Publisher: Springer Science & Business Media
This second edition of the important introductory text for earth scientists has been thoroughly revised and extended. It is required reading for all those interested in learning about the quantitative description of geological problems. It contains chapters on heat flow, sedimentary basin modeling, the mechanics of continental deformation, PT path modeling, geomorphology, mass transfer and more. The book is aimed at the field oriented geologist who wants to begin by learning about the quantitative description of problems. The new edition features yet more illustrations and maps as well as almost 100 corrections of scientific problems.
A numerical modeling of the formation of extensive regional structures ( Emperor
Fracture Zone , Chinook Trough ... S000143700705013X INTRODUCTION deep
- water part of the Bering Sea is separated into the Commander and Bowers
basins by the submarine ShirIn this paper , we present a geodynamical analysis
of the northern part of the Pacific Ocean located north of shov and Bowers ridges
II - MODEL OF SUBDUCTION ZONE INFANCY AT A MID - OCEAN RIDGE
Delphine Insergueix - Filippi * , Laure Dupeyrat ... ABSTRACT INTRODUCTION NUMERICAL MODELLING In many ophiolite complexes , tectonic , magmatic
and ... The geodynamic scenario of our model is made up of three successive
stages ( Fig .
NUMERICAL MODELLING OF THE OCEAN CIRCULATION AND
PALEOCIRCULATION D.G. Seidov Shirshov's Institute of ... The atmosphere has
been assuined to be zonal , and continents drifted after the breakup of Pangaea
as it is proposed by geodynamics . ... Introduction There has always been great
interest among paleoecologists , paleoclimatologists and geologists in geologic
history of the ...
I.2. Ionospheric irregularities, their morphology and properties. I.3. Theories of
spread-F irregularity formation . . II. Quasi-hydrodynamic model of ionospheric
plasma . . . . . . . . . . . . III. Iv. V. Numerical analysis in ionospheric conditions . VI.
We have developed a new two - dimensional stratigraphic model that combines a geodynamical model that simulates ... INTRODUCTION While geophysicists have
been examining the role of lithosSloss ( 1962 ) was possibly the first to apply ...
Author: John Warvelle Harbaugh
Publisher: Sepm Society for Sedimentary
Category: Geology, Stratigraphic
This volume summarizes the status of computer modelling of sedimentary and stratigraphic processes and demonstrates the potential of these studies. The papers in the volume collectively illustrate the utility of stratigraphic modelling for incorporating an synthesizing geologic, geophysical and petrophysical data for increasing understanding of sedimentary and stratigraphic systems and the distribution of natural resources.