An Accuracy Assessment of Absolute Gravimetric Observations in Fennoscandia
We compare a suite of absolute gravimeters used to monitor the temporal changes of gravity at a number of sites in Fennoscandia. Direct comparisons are made from simultaneous observations at selected sites within and outside of the postglacial uplift region. We also compare results at sites visited...
Main Authors: | , , , , , , , , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
The Finnish Society of Built Environment Research
2010
|
Subjects: | |
Online Access: | https://journal.fi/njs/article/view/3659 |
id |
fttsvojs:oai:journal.fi:article/3659 |
---|---|
record_format |
openpolar |
spelling |
fttsvojs:oai:journal.fi:article/3659 2023-05-15T16:11:29+02:00 An Accuracy Assessment of Absolute Gravimetric Observations in Fennoscandia Pettersen, Bjørn Ragnvald Bilker-Koivula, Mirjam Breili, Kristian Engfeldt, Andreas Falk, Reinhard Gitlein, Olga Gjevestad, Jon Glenn Omholt Hoppe, W Lysaker, Dagny I Mäkinen, Jaakko Omang, Ove Christian Dahl Reinhold, A Timmen, Ludger 2010-10-27 application/pdf https://journal.fi/njs/article/view/3659 eng eng The Finnish Society of Built Environment Research https://journal.fi/njs/article/view/3659/3428 https://journal.fi/njs/article/view/3659 Nordic Journal of Surveying and Real Estate Research; Vol 7 No 1 (2010) Nordic journal of surveying and real estate research; Vol 7 Nro 1 (2010) 2341-6599 1459-5877 Absolute gravimetry Fennoscandia info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2010 fttsvojs 2020-05-29T20:02:49Z We compare a suite of absolute gravimeters used to monitor the temporal changes of gravity at a number of sites in Fennoscandia. Direct comparisons are made from simultaneous observations at selected sites within and outside of the postglacial uplift region. We also compare results at sites visited by two instruments with some separation in time. We conclude from four years of data that gravity differences are obtained within an rms error of ± 3 Gal. The data reveal no systematic biases between the instruments, but occasional shifts from one year to another are noted. We consider that annual instrument comparisons are required to ensure data integrity in a regional observing program that extends over more than a decade. Article in Journal/Newspaper Fennoscandia Federation of Finnish Learned Societies: Scientific Journals Online |
institution |
Open Polar |
collection |
Federation of Finnish Learned Societies: Scientific Journals Online |
op_collection_id |
fttsvojs |
language |
English |
topic |
Absolute gravimetry Fennoscandia |
spellingShingle |
Absolute gravimetry Fennoscandia Pettersen, Bjørn Ragnvald Bilker-Koivula, Mirjam Breili, Kristian Engfeldt, Andreas Falk, Reinhard Gitlein, Olga Gjevestad, Jon Glenn Omholt Hoppe, W Lysaker, Dagny I Mäkinen, Jaakko Omang, Ove Christian Dahl Reinhold, A Timmen, Ludger An Accuracy Assessment of Absolute Gravimetric Observations in Fennoscandia |
topic_facet |
Absolute gravimetry Fennoscandia |
description |
We compare a suite of absolute gravimeters used to monitor the temporal changes of gravity at a number of sites in Fennoscandia. Direct comparisons are made from simultaneous observations at selected sites within and outside of the postglacial uplift region. We also compare results at sites visited by two instruments with some separation in time. We conclude from four years of data that gravity differences are obtained within an rms error of ± 3 Gal. The data reveal no systematic biases between the instruments, but occasional shifts from one year to another are noted. We consider that annual instrument comparisons are required to ensure data integrity in a regional observing program that extends over more than a decade. |
format |
Article in Journal/Newspaper |
author |
Pettersen, Bjørn Ragnvald Bilker-Koivula, Mirjam Breili, Kristian Engfeldt, Andreas Falk, Reinhard Gitlein, Olga Gjevestad, Jon Glenn Omholt Hoppe, W Lysaker, Dagny I Mäkinen, Jaakko Omang, Ove Christian Dahl Reinhold, A Timmen, Ludger |
author_facet |
Pettersen, Bjørn Ragnvald Bilker-Koivula, Mirjam Breili, Kristian Engfeldt, Andreas Falk, Reinhard Gitlein, Olga Gjevestad, Jon Glenn Omholt Hoppe, W Lysaker, Dagny I Mäkinen, Jaakko Omang, Ove Christian Dahl Reinhold, A Timmen, Ludger |
author_sort |
Pettersen, Bjørn Ragnvald |
title |
An Accuracy Assessment of Absolute Gravimetric Observations in Fennoscandia |
title_short |
An Accuracy Assessment of Absolute Gravimetric Observations in Fennoscandia |
title_full |
An Accuracy Assessment of Absolute Gravimetric Observations in Fennoscandia |
title_fullStr |
An Accuracy Assessment of Absolute Gravimetric Observations in Fennoscandia |
title_full_unstemmed |
An Accuracy Assessment of Absolute Gravimetric Observations in Fennoscandia |
title_sort |
accuracy assessment of absolute gravimetric observations in fennoscandia |
publisher |
The Finnish Society of Built Environment Research |
publishDate |
2010 |
url |
https://journal.fi/njs/article/view/3659 |
genre |
Fennoscandia |
genre_facet |
Fennoscandia |
op_source |
Nordic Journal of Surveying and Real Estate Research; Vol 7 No 1 (2010) Nordic journal of surveying and real estate research; Vol 7 Nro 1 (2010) 2341-6599 1459-5877 |
op_relation |
https://journal.fi/njs/article/view/3659/3428 https://journal.fi/njs/article/view/3659 |
_version_ |
1765996622268858368 |