GRACE era secular trends in Earth rotation parameters: A global scale impact of the global warming process?
Recent trends in the two primary anomalies in the rotational state of the planet are analyzed in detail, namely those associated with the speed and direction of polar wander and with the non‐tidal acceleration of the rate of axial rotation (via the measurement of the changing oblateness of the Earth...
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| Veröffentlicht in: | Geophysical research letters 2011-05, Vol.38 (10), p.n/a |
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| description | Recent trends in the two primary anomalies in the rotational state of the planet are analyzed in detail, namely those associated with the speed and direction of polar wander and with the non‐tidal acceleration of the rate of axial rotation (via the measurement of the changing oblateness of the Earth's shape). It is demonstrated that a significant change in the secular trends in both of these independent parameters became evident subsequent to approximately 1992. It is suggested that both parameters might have come to be substantially influenced by mass loss from both the great polar ice sheets, and from the very large number of small ice‐sheets and glaciers that are also being influenced by the global warming phenomenon. The modern values for the secular drifts in those parameters that we estimate are appropriate to the period during which measurements have been made by the satellites of the Gravity Recovery and Climate Experiment (GRACE). These changes in secular rates might greatly assist in understanding why the GRACE‐inferred values of the time derivatives of the degree two and order one Stokes coefficients differ so significantly from those associated with Late Quaternary ice‐age influence.
Key Points
Changes in the rotational state of the planet are suggested to occur after 1992
GRACE‐inferred values of the Stokes coefficients can be re‐examined
The changes might be linked to the impact of global warming on ice masses |
| doi_str_mv | 10.1029/2011GL047282 |
| format | Article |
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Key Points
Changes in the rotational state of the planet are suggested to occur after 1992
GRACE‐inferred values of the Stokes coefficients can be re‐examined
The changes might be linked to the impact of global warming on ice masses</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1029/2011GL047282</identifier><identifier>CODEN: GPRLAJ</identifier><language>eng</language><publisher>Washington, DC: Blackwell Publishing Ltd</publisher><subject>Climate change ; Earth ; Earth rotation ; Earth sciences ; Earth, ocean, space ; Exact sciences and technology ; Geodetics ; glacial isostasy ; Glaciers ; Global warming ; Gravity ; Ice ; Polar wandering ; Quaternary ; Satellites ; Secularism ; time-dependent gravity ; Trends</subject><ispartof>Geophysical research letters, 2011-05, Vol.38 (10), p.n/a</ispartof><rights>Copyright 2011 by the American Geophysical Union.</rights><rights>2015 INIST-CNRS</rights><rights>Copyright 2011 by American Geophysical Union</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a5280-62111a34cbd836c11e1b6392b3db406a4e6615a959ffa346fdc4b0e2c8039f263</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1029%2F2011GL047282$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1029%2F2011GL047282$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,1433,11514,27924,27925,45574,45575,46409,46468,46833,46892</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28104438$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Roy, Keven</creatorcontrib><creatorcontrib>Peltier, W. R.</creatorcontrib><title>GRACE era secular trends in Earth rotation parameters: A global scale impact of the global warming process?</title><title>Geophysical research letters</title><addtitle>Geophys. Res. Lett</addtitle><description>Recent trends in the two primary anomalies in the rotational state of the planet are analyzed in detail, namely those associated with the speed and direction of polar wander and with the non‐tidal acceleration of the rate of axial rotation (via the measurement of the changing oblateness of the Earth's shape). It is demonstrated that a significant change in the secular trends in both of these independent parameters became evident subsequent to approximately 1992. It is suggested that both parameters might have come to be substantially influenced by mass loss from both the great polar ice sheets, and from the very large number of small ice‐sheets and glaciers that are also being influenced by the global warming phenomenon. The modern values for the secular drifts in those parameters that we estimate are appropriate to the period during which measurements have been made by the satellites of the Gravity Recovery and Climate Experiment (GRACE). These changes in secular rates might greatly assist in understanding why the GRACE‐inferred values of the time derivatives of the degree two and order one Stokes coefficients differ so significantly from those associated with Late Quaternary ice‐age influence.
Key Points
Changes in the rotational state of the planet are suggested to occur after 1992
GRACE‐inferred values of the Stokes coefficients can be re‐examined
The changes might be linked to the impact of global warming on ice masses</description><subject>Climate change</subject><subject>Earth</subject><subject>Earth rotation</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>Geodetics</subject><subject>glacial isostasy</subject><subject>Glaciers</subject><subject>Global warming</subject><subject>Gravity</subject><subject>Ice</subject><subject>Polar wandering</subject><subject>Quaternary</subject><subject>Satellites</subject><subject>Secularism</subject><subject>time-dependent gravity</subject><subject>Trends</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNp1kd9rFDEQx4NY8Gx98w8Iivi0dibJZTe-yHGcq_SqcCg-htlctt12f5xJjtr_3hxXiwg-zcB8vt8ZvsPYS4R3CMKcC0Cs16BKUYknbIZGqaICKJ-yGYDJvSj1M_Y8xhsAkCBxxm7rzWK54j4Qj97tewo8BT9uI-9GvqKQrnmYEqVuGvmOAg0--RDf8wW_6qeGeh4d9Z53w45c4lPL07X_M7qjMHTjFd-FyfkYP5yxk5b66F881FP2_ePq2_JTsf5af14u1gXNRQWFFohIUrlmW0ntED02WhrRyG2jQJPyWuOczNy0bcZ0u3WqAS9cBdK0QstT9vbomxf_3PuY7NBF5_ueRj_tozUoDJqqLDP56h_yZtqHMR9nDWQnWSqRodf_g7DUgMqgOli9eaDoEEkbaHRdtLvQDRTuragQlJJV5sSRu-t6f_84R7CHF9q_X2jrzToHoiCLiqOoi8n_ehRRuLW6lOXc_vhS28vLC6WF2lgtfwPabJvu</recordid><startdate>201105</startdate><enddate>201105</enddate><creator>Roy, Keven</creator><creator>Peltier, W. R.</creator><general>Blackwell Publishing Ltd</general><general>American Geophysical Union</general><general>John Wiley & Sons, Inc</general><scope>BSCLL</scope><scope>IQODW</scope><scope>3V.</scope><scope>7TG</scope><scope>7TN</scope><scope>7XB</scope><scope>88I</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>8G5</scope><scope>ABJCF</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>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>FR3</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>H8D</scope><scope>H96</scope><scope>HCIFZ</scope><scope>KL.</scope><scope>KR7</scope><scope>L.G</scope><scope>L6V</scope><scope>L7M</scope><scope>M2O</scope><scope>M2P</scope><scope>M7S</scope><scope>MBDVC</scope><scope>P5Z</scope><scope>P62</scope><scope>PATMY</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>Q9U</scope><scope>7ST</scope><scope>7U6</scope><scope>C1K</scope></search><sort><creationdate>201105</creationdate><title>GRACE era secular trends in Earth rotation parameters: A global scale impact of the global warming process?</title><author>Roy, Keven ; Peltier, W. R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a5280-62111a34cbd836c11e1b6392b3db406a4e6615a959ffa346fdc4b0e2c8039f263</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Climate change</topic><topic>Earth</topic><topic>Earth rotation</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Exact sciences and technology</topic><topic>Geodetics</topic><topic>glacial isostasy</topic><topic>Glaciers</topic><topic>Global warming</topic><topic>Gravity</topic><topic>Ice</topic><topic>Polar wandering</topic><topic>Quaternary</topic><topic>Satellites</topic><topic>Secularism</topic><topic>time-dependent gravity</topic><topic>Trends</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Roy, Keven</creatorcontrib><creatorcontrib>Peltier, W. 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R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>GRACE era secular trends in Earth rotation parameters: A global scale impact of the global warming process?</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>2011-05</date><risdate>2011</risdate><volume>38</volume><issue>10</issue><epage>n/a</epage><issn>0094-8276</issn><eissn>1944-8007</eissn><coden>GPRLAJ</coden><abstract>Recent trends in the two primary anomalies in the rotational state of the planet are analyzed in detail, namely those associated with the speed and direction of polar wander and with the non‐tidal acceleration of the rate of axial rotation (via the measurement of the changing oblateness of the Earth's shape). It is demonstrated that a significant change in the secular trends in both of these independent parameters became evident subsequent to approximately 1992. It is suggested that both parameters might have come to be substantially influenced by mass loss from both the great polar ice sheets, and from the very large number of small ice‐sheets and glaciers that are also being influenced by the global warming phenomenon. The modern values for the secular drifts in those parameters that we estimate are appropriate to the period during which measurements have been made by the satellites of the Gravity Recovery and Climate Experiment (GRACE). These changes in secular rates might greatly assist in understanding why the GRACE‐inferred values of the time derivatives of the degree two and order one Stokes coefficients differ so significantly from those associated with Late Quaternary ice‐age influence.
Key Points
Changes in the rotational state of the planet are suggested to occur after 1992
GRACE‐inferred values of the Stokes coefficients can be re‐examined
The changes might be linked to the impact of global warming on ice masses</abstract><cop>Washington, DC</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1029/2011GL047282</doi><tpages>5</tpages></addata></record> |
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| ispartof | Geophysical research letters, 2011-05, Vol.38 (10), p.n/a |
| issn | 0094-8276 1944-8007 |
| language | eng |
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| source | Wiley Online Library Journals Frontfile Complete; Wiley Free Content; Wiley-Blackwell AGU Digital Library; EZB-FREE-00999 freely available EZB journals |
| subjects | Climate change Earth Earth rotation Earth sciences Earth, ocean, space Exact sciences and technology Geodetics glacial isostasy Glaciers Global warming Gravity Ice Polar wandering Quaternary Satellites Secularism time-dependent gravity Trends |
| title | GRACE era secular trends in Earth rotation parameters: A global scale impact of the global warming process? |
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