Mantle viscosity inference: a comparison between simulated annealing and neighbourhood algorithm inversion methods
Two direct search methods, simulated annealing and neighbourhood algorithm, are applied to the inversion of the viscosity profile of the mantle using relative sea level time-histories for the Hudson Bay region. In problems characterized by a low-dimensional model space (Nd = 2 in this study), the tw...
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ftunibolognairis:oai:cris.unibo.it:11585/772231 2024-04-14T08:12:50+00:00 Mantle viscosity inference: a comparison between simulated annealing and neighbourhood algorithm inversion methods N. PIANA AGOSTINETTI SPADA, GIORGIO S. CIANETTI N. PIANA AGOSTINETTI SPADA, GIORGIO S. CIANETTI 2004 STAMPA http://hdl.handle.net/11585/772231 https://doi.org/10.1111/j.1365-246X.2004.02237.x http://onlinelibrary.wiley.com/doi/10.1111/j.1365-246X.2004.02237.x/abstract eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000221422500031 volume:157 firstpage:890 lastpage:900 numberofpages:11 journal:GEOPHYSICAL JOURNAL INTERNATIONAL http://hdl.handle.net/11585/772231 doi:10.1111/j.1365-246X.2004.02237.x info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-2542627438 http://onlinelibrary.wiley.com/doi/10.1111/j.1365-246X.2004.02237.x/abstract mantle viscosity neighbourhood algorithm postglacial rebound simulated annealing info:eu-repo/semantics/article 2004 ftunibolognairis https://doi.org/10.1111/j.1365-246X.2004.02237.x 2024-03-21T18:28:27Z Two direct search methods, simulated annealing and neighbourhood algorithm, are applied to the inversion of the viscosity profile of the mantle using relative sea level time-histories for the Hudson Bay region. In problems characterized by a low-dimensional model space (Nd = 2 in this study), the two inversion methods show comparable performances. When a larger number of dimensions is involved (specifically Nd = 6), we directly show that simulated annealing is less effective than neighbourhood algorithm in overcoming the obstacles that are found in the model space when our specific data set is employed. This study confirms that modifications of the conventional Monte Carlo inversion method, such as simulated annealing and neighbourhood algorithm, are viable tools to determine the viscosity profile of the mantle, which, until recently, has been mainly tackled by means of linearized techniques. Article in Journal/Newspaper Hudson Bay IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) Hudson Hudson Bay Geophysical Journal International 157 2 890 900 |
institution |
Open Polar |
collection |
IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) |
op_collection_id |
ftunibolognairis |
language |
English |
topic |
mantle viscosity neighbourhood algorithm postglacial rebound simulated annealing |
spellingShingle |
mantle viscosity neighbourhood algorithm postglacial rebound simulated annealing N. PIANA AGOSTINETTI SPADA, GIORGIO S. CIANETTI Mantle viscosity inference: a comparison between simulated annealing and neighbourhood algorithm inversion methods |
topic_facet |
mantle viscosity neighbourhood algorithm postglacial rebound simulated annealing |
description |
Two direct search methods, simulated annealing and neighbourhood algorithm, are applied to the inversion of the viscosity profile of the mantle using relative sea level time-histories for the Hudson Bay region. In problems characterized by a low-dimensional model space (Nd = 2 in this study), the two inversion methods show comparable performances. When a larger number of dimensions is involved (specifically Nd = 6), we directly show that simulated annealing is less effective than neighbourhood algorithm in overcoming the obstacles that are found in the model space when our specific data set is employed. This study confirms that modifications of the conventional Monte Carlo inversion method, such as simulated annealing and neighbourhood algorithm, are viable tools to determine the viscosity profile of the mantle, which, until recently, has been mainly tackled by means of linearized techniques. |
author2 |
N. PIANA AGOSTINETTI SPADA, GIORGIO S. CIANETTI |
format |
Article in Journal/Newspaper |
author |
N. PIANA AGOSTINETTI SPADA, GIORGIO S. CIANETTI |
author_facet |
N. PIANA AGOSTINETTI SPADA, GIORGIO S. CIANETTI |
author_sort |
N. PIANA AGOSTINETTI |
title |
Mantle viscosity inference: a comparison between simulated annealing and neighbourhood algorithm inversion methods |
title_short |
Mantle viscosity inference: a comparison between simulated annealing and neighbourhood algorithm inversion methods |
title_full |
Mantle viscosity inference: a comparison between simulated annealing and neighbourhood algorithm inversion methods |
title_fullStr |
Mantle viscosity inference: a comparison between simulated annealing and neighbourhood algorithm inversion methods |
title_full_unstemmed |
Mantle viscosity inference: a comparison between simulated annealing and neighbourhood algorithm inversion methods |
title_sort |
mantle viscosity inference: a comparison between simulated annealing and neighbourhood algorithm inversion methods |
publishDate |
2004 |
url |
http://hdl.handle.net/11585/772231 https://doi.org/10.1111/j.1365-246X.2004.02237.x http://onlinelibrary.wiley.com/doi/10.1111/j.1365-246X.2004.02237.x/abstract |
geographic |
Hudson Hudson Bay |
geographic_facet |
Hudson Hudson Bay |
genre |
Hudson Bay |
genre_facet |
Hudson Bay |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000221422500031 volume:157 firstpage:890 lastpage:900 numberofpages:11 journal:GEOPHYSICAL JOURNAL INTERNATIONAL http://hdl.handle.net/11585/772231 doi:10.1111/j.1365-246X.2004.02237.x info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-2542627438 http://onlinelibrary.wiley.com/doi/10.1111/j.1365-246X.2004.02237.x/abstract |
op_doi |
https://doi.org/10.1111/j.1365-246X.2004.02237.x |
container_title |
Geophysical Journal International |
container_volume |
157 |
container_issue |
2 |
container_start_page |
890 |
op_container_end_page |
900 |
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1796310677122449408 |