Observing Gravity Change in the Fennoscandian Uplift Area with the Hanover Absolute Gravimeter
The Nordic countries Norway, Sweden, Finland and Denmark are a key study region for research of glacial isostasy. In addition, such research offers a unique opportunity for absolute gravimetry to show its capability as a geodetic tool for geophysical research. Within a multi-national cooperation, an...
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| Veröffentlicht in: | Pure and applied geophysics 2012-08, Vol.169 (8), p.1331-1342 |
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| creator | Timmen, Ludger Gitlein, Olga Klemann, Volker Wolf, Detlef |
| description | The Nordic countries Norway, Sweden, Finland and Denmark are a key study region for research of glacial isostasy. In addition, such research offers a unique opportunity for absolute gravimetry to show its capability as a geodetic tool for geophysical research. Within a multi-national cooperation, annual absolute gravity measurements have been performed in Fennoscandia by IfE since 2003. For the Hanover gravimeter FG5-220, overall accuracy of ±30 nm/s
2
is indicated for a single station determination. First results of linear gravity changes are derived for ten stations in the central and southern part of the uplift area. Comparing with the rates predicted by glacial rebound modelling, the gravity trends of the absolute measurements differ by 3.8 nm/s
2
per year (root-mean-square discrepancy) from the uplift model. The mean difference between observed and predicted rates is 0.8 nm/s
2
per year only. A proportionality factor of −1.63 ± 0.20 nm/s
2
per mm has been obtained, which describes the mean ratio between the observational gravity and height rates. |
| doi_str_mv | 10.1007/s00024-011-0397-9 |
| format | Article |
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2
is indicated for a single station determination. First results of linear gravity changes are derived for ten stations in the central and southern part of the uplift area. Comparing with the rates predicted by glacial rebound modelling, the gravity trends of the absolute measurements differ by 3.8 nm/s
2
per year (root-mean-square discrepancy) from the uplift model. The mean difference between observed and predicted rates is 0.8 nm/s
2
per year only. A proportionality factor of −1.63 ± 0.20 nm/s
2
per mm has been obtained, which describes the mean ratio between the observational gravity and height rates.</description><identifier>ISSN: 0033-4553</identifier><identifier>EISSN: 1420-9136</identifier><identifier>DOI: 10.1007/s00024-011-0397-9</identifier><language>eng</language><publisher>Basel: SP Birkhäuser Verlag Basel</publisher><subject>Cooperation ; Earth and Environmental Science ; Earth Sciences ; Geodetics ; Geophysics ; Geophysics/Geodesy ; Glaciers ; Gravimeters ; Gravimetry ; Gravitation ; Isostasy ; Lithosphere ; Mathematical models ; Scientific apparatus & instruments ; Stations</subject><ispartof>Pure and applied geophysics, 2012-08, Vol.169 (8), p.1331-1342</ispartof><rights>Springer Basel AG 2011</rights><rights>Springer Basel AG 2012</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a415t-bee2f1d7b473061536a5c5a4bcabc1c6aa6a12f97408430029d18494a42434ec3</citedby><cites>FETCH-LOGICAL-a415t-bee2f1d7b473061536a5c5a4bcabc1c6aa6a12f97408430029d18494a42434ec3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00024-011-0397-9$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00024-011-0397-9$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Timmen, Ludger</creatorcontrib><creatorcontrib>Gitlein, Olga</creatorcontrib><creatorcontrib>Klemann, Volker</creatorcontrib><creatorcontrib>Wolf, Detlef</creatorcontrib><title>Observing Gravity Change in the Fennoscandian Uplift Area with the Hanover Absolute Gravimeter</title><title>Pure and applied geophysics</title><addtitle>Pure Appl. Geophys</addtitle><description>The Nordic countries Norway, Sweden, Finland and Denmark are a key study region for research of glacial isostasy. In addition, such research offers a unique opportunity for absolute gravimetry to show its capability as a geodetic tool for geophysical research. Within a multi-national cooperation, annual absolute gravity measurements have been performed in Fennoscandia by IfE since 2003. For the Hanover gravimeter FG5-220, overall accuracy of ±30 nm/s
2
is indicated for a single station determination. First results of linear gravity changes are derived for ten stations in the central and southern part of the uplift area. Comparing with the rates predicted by glacial rebound modelling, the gravity trends of the absolute measurements differ by 3.8 nm/s
2
per year (root-mean-square discrepancy) from the uplift model. The mean difference between observed and predicted rates is 0.8 nm/s
2
per year only. A proportionality factor of −1.63 ± 0.20 nm/s
2
per mm has been obtained, which describes the mean ratio between the observational gravity and height rates.</description><subject>Cooperation</subject><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Geodetics</subject><subject>Geophysics</subject><subject>Geophysics/Geodesy</subject><subject>Glaciers</subject><subject>Gravimeters</subject><subject>Gravimetry</subject><subject>Gravitation</subject><subject>Isostasy</subject><subject>Lithosphere</subject><subject>Mathematical models</subject><subject>Scientific apparatus & instruments</subject><subject>Stations</subject><issn>0033-4553</issn><issn>1420-9136</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp1kE9PwjAYhxujiYh-AG9NvHiZ9t9WeiREwISEi1xd3o13MDI6bDsM397iPBgTT708vydvH0LuOXvijOlnzxgTKmGcJ0wanZgLMuBKsMRwmV2SAWNSJipN5TW58X7HGNc6NQPyviw8umNtN3Tm4FiHE51swW6Q1paGLdIpWtv6Euy6BktXh6auAh07BPpZh-03MgfbHtHRceHbpgvYm_YY0N2Sqwoaj3c_75Cspi9vk3myWM5eJ-NFAoqnISkQRcXXulBasoynMoO0TEEVJRQlLzOADLiojFZspGT8qVnzkTIKlFBSYSmH5LH3Hlz70aEP-b72JTYNWGw7n3MmR0KlIqqH5OEPums7Z-N1kRKZ5llmRKR4T5Wu9d5hlR9cvQd3ilB-Lp73xfNYPD8Xz03ciH7jIxsTut_m_0Zf8ICCYQ</recordid><startdate>20120801</startdate><enddate>20120801</enddate><creator>Timmen, Ludger</creator><creator>Gitlein, Olga</creator><creator>Klemann, Volker</creator><creator>Wolf, Detlef</creator><general>SP Birkhäuser Verlag Basel</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7TG</scope><scope>7UA</scope><scope>7XB</scope><scope>88I</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>GNUQQ</scope><scope>H8D</scope><scope>H96</scope><scope>HCIFZ</scope><scope>KL.</scope><scope>L.G</scope><scope>L7M</scope><scope>M2P</scope><scope>P5Z</scope><scope>P62</scope><scope>PATMY</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PYCSY</scope><scope>Q9U</scope></search><sort><creationdate>20120801</creationdate><title>Observing Gravity Change in the Fennoscandian Uplift Area with the Hanover Absolute Gravimeter</title><author>Timmen, Ludger ; 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2
is indicated for a single station determination. First results of linear gravity changes are derived for ten stations in the central and southern part of the uplift area. Comparing with the rates predicted by glacial rebound modelling, the gravity trends of the absolute measurements differ by 3.8 nm/s
2
per year (root-mean-square discrepancy) from the uplift model. The mean difference between observed and predicted rates is 0.8 nm/s
2
per year only. A proportionality factor of −1.63 ± 0.20 nm/s
2
per mm has been obtained, which describes the mean ratio between the observational gravity and height rates.</abstract><cop>Basel</cop><pub>SP Birkhäuser Verlag Basel</pub><doi>10.1007/s00024-011-0397-9</doi><tpages>12</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Cooperation Earth and Environmental Science Earth Sciences Geodetics Geophysics Geophysics/Geodesy Glaciers Gravimeters Gravimetry Gravitation Isostasy Lithosphere Mathematical models Scientific apparatus & instruments Stations |
| title | Observing Gravity Change in the Fennoscandian Uplift Area with the Hanover Absolute Gravimeter |
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