A magnetic disturbance index for Mercury's magnetic field derived from MESSENGER Magnetometer data
We present a magnetic disturbance measure for Mercury derived from MESSENGER Magnetometer data. Magnetic field fluctuations were computed in three period bands: 0.1–2 s, 2–20 s, and 20–300 s. From these, we determined log average magnetic variability versus latitude and local time in Mercury's...
Gespeichert in:
| Veröffentlicht in: | Geochemistry, geophysics, geosystems : G3 geophysics, geosystems : G3, 2013-09, Vol.14 (9), p.3875-3886 |
|---|---|
| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 3886 |
|---|---|
| container_issue | 9 |
| container_start_page | 3875 |
| container_title | Geochemistry, geophysics, geosystems : G3 |
| container_volume | 14 |
| creator | Anderson, Brian J. Johnson, Catherine L. Korth, Haje |
| description | We present a magnetic disturbance measure for Mercury derived from MESSENGER Magnetometer data. Magnetic field fluctuations were computed in three period bands: 0.1–2 s, 2–20 s, and 20–300 s. From these, we determined log average magnetic variability versus latitude and local time in Mercury's magnetosphere. The quietest regions are the southern tail lobe and the nightside poleward of 30° magnetic latitude, and the most disturbed regions are near magnetopause boundaries and the magnetospheric cusp. We used ratios at each location between the mean disturbance and that observed on each pass to compute normalized measures of magnetic disturbance for each orbit. Composite disturbance indices incorporate disturbance levels in all three bands. Percentile ranking of the composite indices provides a quantitative basis for selecting data from quiet to disturbed conditions.
Key Points
Dynamics of Mercury's magnetosphere is reflected in magnetic variability
Three period bands are used to quantify the disturbance level
Normalization is used to account for structure of fluctuation field at Mercury |
| doi_str_mv | 10.1002/ggge.20242 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_24P</sourceid><recordid>TN_cdi_proquest_miscellaneous_1651444158</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>1541402649</sourcerecordid><originalsourceid>FETCH-LOGICAL-a5302-bbdb912250e715ad8434d48f33b7f4bcae51e38634130261821ac09c47a77c2f3</originalsourceid><addsrcrecordid>eNqF0VtP2zAYBuAIbRJdtxt-gSUuQEgpPju9RChkk1pAYxOXlmN_qVJyADvZ2n8_Q8dBXGw3PkjP-1nWmyQHBM8IxvR0tVrBjGLK6V4yIYKKNF7Uhzfn_eRTCGuMCRcimyTlGWrNqoOhtsjVYRh9aToLqO4cbFDVe7QEb0e_PQqvsKqhcciBr3-BQ5XvW7TMb27yyyL_jpZPqm9hAI-cGczn5GNlmgBf_u7T5OdF_uP8a7q4Kr6dny1SIximaVm6ck4oFRgUEcZlnHHHs4qxUlW8tAYEAZZJxknkkmSUGIvnliujlKUVmybHu7n3vn8YIQy6rYOFpjEd9GPQRArCOSci-z8VnPD4CJ9HeviOrvvRd_EjcSCnOC6SRnWyU9b3IXio9L2vW-O3mmD92Ix-bEY_NRMx2eHfdQPbf0hdFEX-nEl3mdgRbF4yxt9pqZgS-vay0Gohr6WUVF-zP-OXnMg</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1642016462</pqid></control><display><type>article</type><title>A magnetic disturbance index for Mercury's magnetic field derived from MESSENGER Magnetometer data</title><source>Wiley Online Library Open Access</source><creator>Anderson, Brian J. ; Johnson, Catherine L. ; Korth, Haje</creator><creatorcontrib>Anderson, Brian J. ; Johnson, Catherine L. ; Korth, Haje</creatorcontrib><description>We present a magnetic disturbance measure for Mercury derived from MESSENGER Magnetometer data. Magnetic field fluctuations were computed in three period bands: 0.1–2 s, 2–20 s, and 20–300 s. From these, we determined log average magnetic variability versus latitude and local time in Mercury's magnetosphere. The quietest regions are the southern tail lobe and the nightside poleward of 30° magnetic latitude, and the most disturbed regions are near magnetopause boundaries and the magnetospheric cusp. We used ratios at each location between the mean disturbance and that observed on each pass to compute normalized measures of magnetic disturbance for each orbit. Composite disturbance indices incorporate disturbance levels in all three bands. Percentile ranking of the composite indices provides a quantitative basis for selecting data from quiet to disturbed conditions.
Key Points
Dynamics of Mercury's magnetosphere is reflected in magnetic variability
Three period bands are used to quantify the disturbance level
Normalization is used to account for structure of fluctuation field at Mercury</description><identifier>ISSN: 1525-2027</identifier><identifier>EISSN: 1525-2027</identifier><identifier>DOI: 10.1002/ggge.20242</identifier><language>eng</language><publisher>Washington: Blackwell Publishing Ltd</publisher><subject>Astrophysics ; Bands ; Disturbance ; disturbance index ; Disturbances ; Fluctuation ; Latitude ; Magnetic disturbances ; magnetic field ; Magnetic fields ; Magnetometers ; magnetosphere ; Magnetospheres ; Mercury ; Mercury (planet)</subject><ispartof>Geochemistry, geophysics, geosystems : G3, 2013-09, Vol.14 (9), p.3875-3886</ispartof><rights>2013. American Geophysical Union. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a5302-bbdb912250e715ad8434d48f33b7f4bcae51e38634130261821ac09c47a77c2f3</citedby><cites>FETCH-LOGICAL-a5302-bbdb912250e715ad8434d48f33b7f4bcae51e38634130261821ac09c47a77c2f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fggge.20242$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fggge.20242$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,777,781,1412,11543,27905,27906,45555,45556,46033,46457</link.rule.ids><linktorsrc>$$Uhttps://onlinelibrary.wiley.com/doi/abs/10.1002%2Fggge.20242$$EView_record_in_Wiley-Blackwell$$FView_record_in_$$GWiley-Blackwell</linktorsrc></links><search><creatorcontrib>Anderson, Brian J.</creatorcontrib><creatorcontrib>Johnson, Catherine L.</creatorcontrib><creatorcontrib>Korth, Haje</creatorcontrib><title>A magnetic disturbance index for Mercury's magnetic field derived from MESSENGER Magnetometer data</title><title>Geochemistry, geophysics, geosystems : G3</title><addtitle>Geochem. Geophys. Geosyst</addtitle><description>We present a magnetic disturbance measure for Mercury derived from MESSENGER Magnetometer data. Magnetic field fluctuations were computed in three period bands: 0.1–2 s, 2–20 s, and 20–300 s. From these, we determined log average magnetic variability versus latitude and local time in Mercury's magnetosphere. The quietest regions are the southern tail lobe and the nightside poleward of 30° magnetic latitude, and the most disturbed regions are near magnetopause boundaries and the magnetospheric cusp. We used ratios at each location between the mean disturbance and that observed on each pass to compute normalized measures of magnetic disturbance for each orbit. Composite disturbance indices incorporate disturbance levels in all three bands. Percentile ranking of the composite indices provides a quantitative basis for selecting data from quiet to disturbed conditions.
Key Points
Dynamics of Mercury's magnetosphere is reflected in magnetic variability
Three period bands are used to quantify the disturbance level
Normalization is used to account for structure of fluctuation field at Mercury</description><subject>Astrophysics</subject><subject>Bands</subject><subject>Disturbance</subject><subject>disturbance index</subject><subject>Disturbances</subject><subject>Fluctuation</subject><subject>Latitude</subject><subject>Magnetic disturbances</subject><subject>magnetic field</subject><subject>Magnetic fields</subject><subject>Magnetometers</subject><subject>magnetosphere</subject><subject>Magnetospheres</subject><subject>Mercury</subject><subject>Mercury (planet)</subject><issn>1525-2027</issn><issn>1525-2027</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqF0VtP2zAYBuAIbRJdtxt-gSUuQEgpPju9RChkk1pAYxOXlmN_qVJyADvZ2n8_Q8dBXGw3PkjP-1nWmyQHBM8IxvR0tVrBjGLK6V4yIYKKNF7Uhzfn_eRTCGuMCRcimyTlGWrNqoOhtsjVYRh9aToLqO4cbFDVe7QEb0e_PQqvsKqhcciBr3-BQ5XvW7TMb27yyyL_jpZPqm9hAI-cGczn5GNlmgBf_u7T5OdF_uP8a7q4Kr6dny1SIximaVm6ck4oFRgUEcZlnHHHs4qxUlW8tAYEAZZJxknkkmSUGIvnliujlKUVmybHu7n3vn8YIQy6rYOFpjEd9GPQRArCOSci-z8VnPD4CJ9HeviOrvvRd_EjcSCnOC6SRnWyU9b3IXio9L2vW-O3mmD92Ix-bEY_NRMx2eHfdQPbf0hdFEX-nEl3mdgRbF4yxt9pqZgS-vay0Gohr6WUVF-zP-OXnMg</recordid><startdate>201309</startdate><enddate>201309</enddate><creator>Anderson, Brian J.</creator><creator>Johnson, Catherine L.</creator><creator>Korth, Haje</creator><general>Blackwell Publishing Ltd</general><general>John Wiley & Sons, Inc</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>7TN</scope><scope>F1W</scope><scope>H96</scope><scope>KL.</scope><scope>L.G</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>201309</creationdate><title>A magnetic disturbance index for Mercury's magnetic field derived from MESSENGER Magnetometer data</title><author>Anderson, Brian J. ; Johnson, Catherine L. ; Korth, Haje</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a5302-bbdb912250e715ad8434d48f33b7f4bcae51e38634130261821ac09c47a77c2f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Astrophysics</topic><topic>Bands</topic><topic>Disturbance</topic><topic>disturbance index</topic><topic>Disturbances</topic><topic>Fluctuation</topic><topic>Latitude</topic><topic>Magnetic disturbances</topic><topic>magnetic field</topic><topic>Magnetic fields</topic><topic>Magnetometers</topic><topic>magnetosphere</topic><topic>Magnetospheres</topic><topic>Mercury</topic><topic>Mercury (planet)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Anderson, Brian J.</creatorcontrib><creatorcontrib>Johnson, Catherine L.</creatorcontrib><creatorcontrib>Korth, Haje</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Oceanic Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Geochemistry, geophysics, geosystems : G3</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Anderson, Brian J.</au><au>Johnson, Catherine L.</au><au>Korth, Haje</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A magnetic disturbance index for Mercury's magnetic field derived from MESSENGER Magnetometer data</atitle><jtitle>Geochemistry, geophysics, geosystems : G3</jtitle><addtitle>Geochem. Geophys. Geosyst</addtitle><date>2013-09</date><risdate>2013</risdate><volume>14</volume><issue>9</issue><spage>3875</spage><epage>3886</epage><pages>3875-3886</pages><issn>1525-2027</issn><eissn>1525-2027</eissn><abstract>We present a magnetic disturbance measure for Mercury derived from MESSENGER Magnetometer data. Magnetic field fluctuations were computed in three period bands: 0.1–2 s, 2–20 s, and 20–300 s. From these, we determined log average magnetic variability versus latitude and local time in Mercury's magnetosphere. The quietest regions are the southern tail lobe and the nightside poleward of 30° magnetic latitude, and the most disturbed regions are near magnetopause boundaries and the magnetospheric cusp. We used ratios at each location between the mean disturbance and that observed on each pass to compute normalized measures of magnetic disturbance for each orbit. Composite disturbance indices incorporate disturbance levels in all three bands. Percentile ranking of the composite indices provides a quantitative basis for selecting data from quiet to disturbed conditions.
Key Points
Dynamics of Mercury's magnetosphere is reflected in magnetic variability
Three period bands are used to quantify the disturbance level
Normalization is used to account for structure of fluctuation field at Mercury</abstract><cop>Washington</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/ggge.20242</doi><tpages>12</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | ISSN: 1525-2027 |
| ispartof | Geochemistry, geophysics, geosystems : G3, 2013-09, Vol.14 (9), p.3875-3886 |
| issn | 1525-2027 1525-2027 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1651444158 |
| source | Wiley Online Library Open Access |
| subjects | Astrophysics Bands Disturbance disturbance index Disturbances Fluctuation Latitude Magnetic disturbances magnetic field Magnetic fields Magnetometers magnetosphere Magnetospheres Mercury Mercury (planet) |
| title | A magnetic disturbance index for Mercury's magnetic field derived from MESSENGER Magnetometer data |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-20T08%3A17%3A18IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_24P&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=A%20magnetic%20disturbance%20index%20for%20Mercury's%20magnetic%20field%20derived%20from%20MESSENGER%20Magnetometer%20data&rft.jtitle=Geochemistry,%20geophysics,%20geosystems%20:%20G3&rft.au=Anderson,%20Brian%20J.&rft.date=2013-09&rft.volume=14&rft.issue=9&rft.spage=3875&rft.epage=3886&rft.pages=3875-3886&rft.issn=1525-2027&rft.eissn=1525-2027&rft_id=info:doi/10.1002/ggge.20242&rft_dat=%3Cproquest_24P%3E1541402649%3C/proquest_24P%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1642016462&rft_id=info:pmid/&rfr_iscdi=true |