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Title:

Review of some significant claimed irregularities in Scandinavian postglacial uplift on timescales of tens to thousands of years earthquakes in Denmark?

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The postglacial uplift and surrounding subsidence in Scandinavia is well described as close to regular, and the phenomenon is similar on timescales of tens, hundreds and thousands of years studied via geodesy, seismology and geology. Searches for irregularities in the form of earthquakes claimed in the scientific literature have disclosed many e...

The postglacial uplift and surrounding subsidence in Scandinavia is well described as close to regular, and the phenomenon is similar on timescales of tens, hundreds and thousands of years studied via geodesy, seismology and geology. Searches for irregularities in the form of earthquakes claimed in the scientific literature have disclosed many earthquakes right after the Ice Age, 9000 yr ago, and some later cases for further evaluation. In a previous report, the present authors have mentioned doubts about the validity of some of the most significant claimed irregularities. In the present paper, a review is made of these significant claimed irregularities in the south-western flank of the Scandinavian postglacial uplift and subsidence via literature studies of geodetic and geological claims of earthquakes as well as discussions in the field. Geodetic observations exist for all of Scandinavia that describe the phenomenon on a scale of 10s100s of years. Earthquake observations in seismology are of relevance in the same timescales. Geological studies of dated shore lines describe the postglacial vertical earth-surface motion in a quite different timescale of 100s1000s of years. There is a need for integration of these observations geographically. This is happening in the various timescales in the DynaQlim project. The review finds the claims unlikely to be earthquakes concerning the following: (1) geodynamical motion in the Copenhagen area, (2) a palaeo-earthquake in Lжsш and (3) the recently proposed water level discrepancy in the southern part of Denmark. The assessment is less certain, but falls to improbable when concerning (4) proposed palaeo-earthquakes by Hallandsеsen in south-western Sweden. Minimize

Publisher:

Copernicus GmbH

Year of Publication:

2014-02-01T00:00:00Z

Source:

Solid Earth, Vol 5, Iss 1, Pp 109-118 (2014)

Solid Earth, Vol 5, Iss 1, Pp 109-118 (2014) Minimize

Document Type:

article

Language:

English

Subjects:

LCC:Geology ; LCC:QE1-996.5 ; LCC:Science ; LCC:Q ; LCC:Geology ; LCC:QE1-996.5 ; LCC:Science ; LCC:Q

LCC:Geology ; LCC:QE1-996.5 ; LCC:Science ; LCC:Q ; LCC:Geology ; LCC:QE1-996.5 ; LCC:Science ; LCC:Q Minimize

DDC:

550 Earth sciences *(computed)*

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CC BY

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http://www.solid-earth.net/5/109/2014/se-5-109-2014.pdf

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Title:

AN UNSYMMETRIC EIGENPROBLEM GOVERNING VIBRATIONS OF A PLATE WITH ATTACHED LOADS

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This paper presents a structure preserving iterative projection method for the unsym-metric eigenvalue problem governing free vibrations of a plate with attached masses. A numerical example demonstrates the efficiency of the approach.

This paper presents a structure preserving iterative projection method for the unsym-metric eigenvalue problem governing free vibrations of a plate with attached masses. A numerical example demonstrates the efficiency of the approach. Minimize

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The Pennsylvania State University CiteSeerX Archives

Year of Publication:

2015-01-12

Source:

https://www.mat.tu-harburg.de/ins/forschung/rep/rep134.pdf

https://www.mat.tu-harburg.de/ins/forschung/rep/rep134.pdf Minimize

Document Type:

text

Language:

en

Subjects:

linear Arnoldi

linear Arnoldi Minimize

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Metadata may be used without restrictions as long as the oai identifier remains attached to it.

Metadata may be used without restrictions as long as the oai identifier remains attached to it. Minimize

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Title:

An Arnoldi Method for Nonlinear Eigenvalue Problems

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For the nonlinear eigenvalue problem T (#)x = 0 we propose an iterative projection method for computing a few eigenvalues close to a given parameter. The current search space is expanded by a generalization of the shift-and-invert Arnoldi method. The resulting projected eigenproblems of small dimension are solved by inverse iteration. The method...

For the nonlinear eigenvalue problem T (#)x = 0 we propose an iterative projection method for computing a few eigenvalues close to a given parameter. The current search space is expanded by a generalization of the shift-and-invert Arnoldi method. The resulting projected eigenproblems of small dimension are solved by inverse iteration. The method is applied to a rational eigenvalue problem governing damped vibrations of a structure. Minimize

Contributors:

The Pennsylvania State University CiteSeerX Archives

Year of Publication:

2009-04-18

Source:

http://www.tu-harburg.de/mat/SCHRIFTEN/rep/rep56.pdf

http://www.tu-harburg.de/mat/SCHRIFTEN/rep/rep56.pdf Minimize

Document Type:

text

Language:

en

Subjects:

iteration

iteration Minimize

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Metadata may be used without restrictions as long as the oai identifier remains attached to it.

Metadata may be used without restrictions as long as the oai identifier remains attached to it. Minimize

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Title:

An Arnoldi Method for Nonlinear Symmetric Eigenvalue Problems

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this paper we consider the nonlinear eigenvalue problem T (#)x = 0 (1) where T (#) is a family of symmetric matrices depending on a parameter J , and J R is an open interval which may be unbounded. As in the linear case T (#) = #I -A a parameter # is called an eigenvalue of T () if problem (1) has a nontrivial solution x #= 0 which is called a c...

this paper we consider the nonlinear eigenvalue problem T (#)x = 0 (1) where T (#) is a family of symmetric matrices depending on a parameter J , and J R is an open interval which may be unbounded. As in the linear case T (#) = #I -A a parameter # is called an eigenvalue of T () if problem (1) has a nontrivial solution x #= 0 which is called a corresponding eigenvector. We assume that the matrices T (#) are large and sparse Minimize

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The Pennsylvania State University CiteSeerX Archives

Year of Publication:

2009-04-18

Source:

http://www.tu-harburg.de/mat/SCHRIFTEN/rep/rep57.pdf

http://www.tu-harburg.de/mat/SCHRIFTEN/rep/rep57.pdf Minimize

Document Type:

text

Language:

en

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Metadata may be used without restrictions as long as the oai identifier remains attached to it.

Metadata may be used without restrictions as long as the oai identifier remains attached to it. Minimize

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Title:

Solving a Rational Eigenvalue Problem in Fluid-Structure Interaction

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this paper we exploit the specialstrlfi[B3 of thenonlinear eigenprfiJ lem in fluid-solid inter[G74fi in a pr jection method. Motivated by a minmax charW43fiJ]H733fi of eigenvaluesfor therfi7[]W[ eigenprJ]H7 (1) and bycomparJ]] theorr for pr[W]4 (1) we deterHfiJ ansatz vector fr] suitablelinear eigenprJ][B43 This method tur[ out to be muchmor e#-...

this paper we exploit the specialstrlfi[B3 of thenonlinear eigenprfiJ lem in fluid-solid inter[G74fi in a pr jection method. Motivated by a minmax charW43fiJ]H733fi of eigenvaluesfor therfi7[]W[ eigenprJ]H7 (1) and bycomparJ]] theorr for pr[W]4 (1) we deterHfiJ ansatz vector fr] suitablelinear eigenprJ][B43 This method tur[ out to be muchmor e#- cient than the Jacobi-Davidson appr[R h in [1]. Notice howeve r that the method in [1] applies to a muchwider class of nonlinear eigenprJ]GHBH The paper isor[GG73fi as follows: Section 2descr4 es the modelfor the fluid-str7B]GG interRRHRfi prRRHR under consider4[G]fi and Section 3 summar ]WG numerR]B methodsfor nonlinear eigenvalue pr7W4H3fi In Section 4 wepr]WG t apr jection methodfor larH and sparH nonlinear eigenvalue prefi]WGW and Section 5 contains a numerG43 example. 2 A Spect72 Problem in Fluid-Solid Std-Solid This section is devoted to thepr[HB tation of the mathematical model which descrW es the prRBB3 gover[H[ fr[ vibr[7BfiJ of a tube bundleimmerfi] in a slightlycompr[HfiJ[3 fluidunder the following simplifying assumptions: The tubes ar assumed to ber igid, assembled in parWGB4 inside the fluid, and elastically mounted in such a way that they can vibr]] tr]] er]]] , but they can not move in the dir4[H7fi pe rendicular totheir sections. The fluid is assumed to be contained in a cavity which is infinitely long, and each tube is supporfi[ by an independent system of sprGG] (which simulates the specific elasticity of each tube). Due to these assumptions, thrptions,fi]WGW] e#ects ar neglected, and so thepr7H]H can be studied in any trRW4 erRB section of the cavity.Consider3W smallvibr4HH3fi of the fluid (and the tubes)ar[[H the state ofrfi7R it can also be assumed that the fluid is ir4377fiJRH[7 Mathematically thisprsfi[7. Minimize

Contributors:

The Pennsylvania State University CiteSeerX Archives

Year of Publication:

2009-04-18

Source:

http://www.tu-harburg.de/mat/SCHRIFTEN/rep/rep46.pdf

http://www.tu-harburg.de/mat/SCHRIFTEN/rep/rep46.pdf Minimize

Document Type:

text

Language:

en

DDC:

532 Fluid mechanics; liquid mechanics *(computed)*

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Title:

page An Arnoldi Method for Nonlinear Symmetric Eigenvalue Problems

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In this paper we consider the nonlinear eigenvalue problem T (λ)x = 0 (1) where T (λ) ∈ R n×n is a family of symmetric matrices depending on a parameter λ ∈ J, and J ⊂ R is an open interval which may be unbounded. As in the linear

In this paper we consider the nonlinear eigenvalue problem T (λ)x = 0 (1) where T (λ) ∈ R n×n is a family of symmetric matrices depending on a parameter λ ∈ J, and J ⊂ R is an open interval which may be unbounded. As in the linear Minimize

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The Pennsylvania State University CiteSeerX Archives

Year of Publication:

2012-02-01

Source:

http://www.siam.org/meetings/la03/proceedings/VossH.pdf

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Document Type:

text

Language:

en

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Title:

Computer-Mediated Cooperative Spatial Planning

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Decision making on spatial planning problems has to integrate recent advancements on geographical information systems with a framework that supports fair, rational and efficient decision making procedures. Such a framework will assist government and businesses with the retrieval, use and reuse of information in cooperative, distributed planning ...

Decision making on spatial planning problems has to integrate recent advancements on geographical information systems with a framework that supports fair, rational and efficient decision making procedures. Such a framework will assist government and businesses with the retrieval, use and reuse of information in cooperative, distributed planning procedures requiring access to spatial data. This paper gives an overview of a computer-mediated group decision support system for the World Wide Web, namely ZENO. The target is to provide intelligent assistance to human mediators and other kinds cf “trusted third partiesi during the above procedures. The role of the system is to remain neutral and help assure that the interests and goals of all members of a group, regardless of their status, are respected and appreciated. In this paper, the system's features are illustrated with a retrospective model of a real urban planning example, concerning the allocation of a new technology park in the area of the city of Bonn, where more than eighty communities, local and federal authorities, and other organizations have been requested to submit their suggestions, objections and comments on a spatial planning problem. Minimize

Year of Publication:

1996

Language:

eng

DDC:

710 Civic & landscape art *(computed)*

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Title:

Traces of the crustal units and the upper-mantle structure in the southwestern part of the East European Craton

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The presented study is a part of the passive seismic experiment PASSEQ 20062008, which took place around the Trans-European Suture Zone (TESZ) from May 2006 to June 2008. The data set of 4195 manually picked arrivals of teleseismic P waves of 101 earthquakes (EQs) recorded in the seismic stations deployed to the east of the TESZ was inverted u...

The presented study is a part of the passive seismic experiment PASSEQ 20062008, which took place around the Trans-European Suture Zone (TESZ) from May 2006 to June 2008. The data set of 4195 manually picked arrivals of teleseismic P waves of 101 earthquakes (EQs) recorded in the seismic stations deployed to the east of the TESZ was inverted using the non-linear teleseismic tomography algorithm TELINV. Two 3-D crustal models were used to estimate the crustal travel time (TT) corrections. As a result, we obtain a model of P -wave velocity variations in the upper mantle beneath the TESZ and the East European Craton (EEC). In the study area beneath the craton, we observe up to 3% higher and beneath the TESZ about 23% lower seismic velocities compared to the IASP91 velocity model. We find the seismic lithosphereasthenosphere boundary (LAB) beneath the TESZ at a depth of about 180 km, while we observe no seismic LAB beneath the EEC. The inversion results obtained with the real and the synthetic data sets indicate a ramp shape of the LAB in the northern TESZ, where we observe values of seismic velocities close to those of the craton down to about 150 km. The lithosphere thickness in the EEC increases going from the TESZ to the NE from about 180 km beneath Poland to 300 km or more beneath Lithuania. Moreover, in western Lithuania we find an indication of an upper-mantle dome. In our results, the crustal units are not well resolved. There are no clear indications of the features in the upper mantle which could be related to the crustal units in the study area. On the other hand, at a depth of 120150 km we indicate a trace of a boundary of proposed palaeosubduction zone between the East Lithuanian Domain (EL) and the West Lithuanian Granulite Domain (WLG). Also, in our results, we may have identified two anorogenic granitoid plutons. Minimize

Publisher:

Copernicus GmbH

Year of Publication:

2014-08-01T00:00:00Z

Source:

Solid Earth, Vol 5, Iss 2, Pp 821-836 (2014)

Solid Earth, Vol 5, Iss 2, Pp 821-836 (2014) Minimize

Document Type:

article

Language:

English

Subjects:

LCC:Geology ; LCC:QE1-996.5 ; LCC:Science ; LCC:Q

LCC:Geology ; LCC:QE1-996.5 ; LCC:Science ; LCC:Q Minimize

DDC:

550 Earth sciences *(computed)*

Rights:

CC BY

CC BY Minimize

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Title:

Reconstruction of Grand Minima of Solar Activity From . data: Linear and nonlinear signal analysis

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Using a special technique of data analysis, we have found 34 grand minima of solar activity in a 7700--year--long \Delta 14 C record. The method used rests on a proper filtering of the \Delta 14 C record and the extrapolation of verifiable results for the later history back in time. Additionally, we have applied a method of nonlinear dynamics, t...

Using a special technique of data analysis, we have found 34 grand minima of solar activity in a 7700--year--long \Delta 14 C record. The method used rests on a proper filtering of the \Delta 14 C record and the extrapolation of verifiable results for the later history back in time. Additionally, we have applied a method of nonlinear dynamics, the recurrence rate, to back up the results. Our findings are not contradictory to the record of grand minima by Eddy [1977] but constitute a considerable extension. Hence it has become possible to look closer at the validity of models. This way, we have tested the model of Barnes et al. [1980]. There are hints for that the grand minima might solely be driven by the 209--year period found in the \Delta 14 C record. Introduction The long--term behavior of solar activity is most obvious in the occurrence of grand minima, as rediscovered by Eddy [1977]. By evaluating historical sunspot observations, Eddy claimed the existence of the so--cal. Minimize

Contributors:

The Pennsylvania State University CiteSeerX Archives

Year of Publication:

2009-04-11

Source:

http://www.agnld.uni-potsdam.de/~hv/p1.ps

http://www.agnld.uni-potsdam.de/~hv/p1.ps Minimize

Document Type:

text

Language:

en

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Title:

Thematic Internet Maps For Cities: Data Analysis And PUBLISHING WITH DESCARTES

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City administrations find increasing interest in providing mapping services to their customers: citizens, businesses, non-governmental organizations, etc. The paper discusses possible architectures of implementing such services in the Internet, and then describes our own system, Descartes, in more detail. Descartes can be used in client/server m...

City administrations find increasing interest in providing mapping services to their customers: citizens, businesses, non-governmental organizations, etc. The paper discusses possible architectures of implementing such services in the Internet, and then describes our own system, Descartes, in more detail. Descartes can be used in client/server mode, where the interactive client interface can be downloaded as a Java Applet. Descartes is particularly suited for a Web-based analysis and publication of geo-referenced statistical data. The functionality and user interface of Descartes is illustrated by some example applications of the Cities of Bonn and Tilburg. 1. INTRODUCTION Geographic information systems (GIS) are widely used as tools supporting the management of spatial information and various map-mediated activities. One such activity is thematic mapping, i.e. presentation of spatially referenced attribute data on maps. As city administrations increasingly understand their r. Minimize

Contributors:

The Pennsylvania State University CiteSeerX Archives

Year of Publication:

2009-04-13

Source:

ftp://ais.gmd.de/pub/SET/publications/released/1999/pdf/Andrienko99.5.pdf

ftp://ais.gmd.de/pub/SET/publications/released/1999/pdf/Andrienko99.5.pdf Minimize

Document Type:

text

Language:

en

DDC:

005 Computer programming, programs & data *(computed)*

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