Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Contribution of satellite altimetry in modelling Moho density contrast in oceanic areas
Högskolan Väst, Institutionen för ingenjörsvetenskap, Avdelningen för Matematik, Data- och Lantmäteriteknik.
Högskolan Väst, Institutionen för ingenjörsvetenskap, Avdelningen för Matematik, Data- och Lantmäteriteknik. Royal Institute of Technology (KTH), Division of Geodesy and Satellite Positioning, Stockholm, SE-100 44, Sweden.
GReD S.r.l., Via Cavour 2, Lomazzo (CO), 22074, Italy.
2018 (engelsk)Inngår i: Journal of Applied Geodesy, ISSN 1862-9016, E-ISSN 1862-9024Artikkel i tidsskrift (Fagfellevurdert) Epub ahead of print
Abstract [en]

The determination of the oceanic Moho (or crust-mantle) density contrast derived from seismic acquisitions suffers from severe lack of data in large parts of the oceans, where have not yet been sufficiently covered by such data. In order to overcome this limitation, gravitational field models obtained by means of satellite altimetry missions can be proficiently exploited, as they provide global uniform information with a sufficient accuracy and resolution for such a task. In this article, we estimate a new Moho density contrast model named MDC2018, using the marine gravity field from satellite altimetry in combination with a seismic-based crustal model and Earth's topographic/bathymetric data. The solution is based on the theory leading to Vening Meinesz-Moritz's isostatic model. The study results in a high-accuracy Moho density contrast model with a resolution of 1° × 1° in oceanic areas. The numerical investigations show that the estimated density contrast ranges from 14.2 to 599.7 kg/m3 with a global average of 293 kg/m3. In order to evaluate the accuracy of the MDC2018 model, the result was compared with some published global models, revealing that our altimetric model is able to image rather reliable information in most of the oceanic areas. However, the differences between this model and the published results are most notable along the coastal and polar zones, which are most likely due to that the quality and coverage of the satellite altimetry data are worsened in these regions.

sted, utgiver, år, opplag, sider
2018.
Emneord [en]
Aneroid altimeters; Coastal zones; Seismology, GMG2014; Isostasy; MDC2018; Moho Density Contrast; Satellite altimetry; Vening Meinesz-Moritz, Satellites
HSV kategori
Forskningsprogram
TEKNIK
Identifikatorer
URN: urn:nbn:se:hv:diva-13120DOI: 10.1515/jag-2018-0034Scopus ID: 2-s2.0-85055655330OAI: oai:DiVA.org:hv-13120DiVA, id: diva2:1262926
Tilgjengelig fra: 2018-11-13 Laget: 2018-11-13 Sist oppdatert: 2019-05-27bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Andre lenker

Forlagets fulltekstScopus

Personposter BETA

Abrehdary, Majid

Søk i DiVA

Av forfatter/redaktør
Abrehdary, Majid
Av organisasjonen
I samme tidsskrift
Journal of Applied Geodesy

Søk utenfor DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 523 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf