Deciphering satellite observations of compressional ULF waveguide modes
We present an analytical method for determining incident and reflection coefficients for flank ULF compressional waveguide modes in Earth's magnetosphere. In the flank magnetosphere, compressional waves propagate azimuthally but exhibit a mixed standing/propagating nature radially. Understandin...
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| Veröffentlicht in: | Journal of geophysical research. Space physics 2016-04, Vol.121 (4), p.3381-3394 |
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| container_issue | 4 |
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| container_title | Journal of geophysical research. Space physics |
| container_volume | 121 |
| creator | Elsden, T. Wright, A. N. Hartinger, M. D. |
| description | We present an analytical method for determining incident and reflection coefficients for flank ULF compressional waveguide modes in Earth's magnetosphere. In the flank magnetosphere, compressional waves propagate azimuthally but exhibit a mixed standing/propagating nature radially. Understanding this radial dependence will yield information on the energy absorption and transport of these waves. We provide a step by step method that can be applied to observations of flank ULF waves, which separates these fluctuations into incident and reflected parts. As a means of testing, we apply the method to data from a numerical waveguide simulation, which shows the effect on the reflection coefficient when energy is absorbed at a field line resonance.
Key Points
Derive a method for estimating incident and reflection coefficients for flank ULF waveguide modes
Test method on simulation data which provide consistent results
Method will be applied to satellite data in the future |
| doi_str_mv | 10.1002/2016JA022351 |
| format | Article |
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Key Points
Derive a method for estimating incident and reflection coefficients for flank ULF waveguide modes
Test method on simulation data which provide consistent results
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Key Points
Derive a method for estimating incident and reflection coefficients for flank ULF waveguide modes
Test method on simulation data which provide consistent results
Method will be applied to satellite data in the future</description><subject>Coefficients</subject><subject>Computer simulation</subject><subject>Earth magnetosphere</subject><subject>Earth science</subject><subject>Energy absorption</subject><subject>Estimating</subject><subject>Estimation</subject><subject>Field line resonance</subject><subject>Flanks</subject><subject>Geophysics</subject><subject>Magnetic fields</subject><subject>Magnetosphere</subject><subject>Magnetospheres</subject><subject>Mathematical models</subject><subject>MHD waves</subject><subject>Reflectance</subject><subject>Reflection</subject><subject>Reflection coefficient</subject><subject>Satellite data</subject><subject>Satellite observation</subject><subject>Test procedures</subject><subject>Transport</subject><subject>ULF</subject><subject>ULF waves</subject><subject>Wave propagation</subject><subject>waveguide modes</subject><subject>Waveguides</subject><issn>2169-9380</issn><issn>2169-9402</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNqFkc1KAzEUhYMoWGp3PsCAGxeO3iSTSbIs1VZLQRC7HjJppqbMNGMybenbm1IFcVHv5v7wcTiXg9A1hnsMQB4I4Hw6BEIow2eoR3AuU5kBOf-ZqYBLNAhhBbFEPGHWQ5NHo237YbxdL5OgOlPXtjOJK4PxW9VZtw6JqxLtmtabEOKu6mQ-Gyc7tTXLjV2YpHELE67QRaXqYAbfvY_m46f30XM6e528jIazVGdUQloZznR0IoSWMq8okxUtFWOkFEoBoZiUzGAuORalyHW8SUJFBpSVi5KSjPbR7VG39e5zY0JXNDbo6FqtjduEAsfHADjF9H-US5AMM35QvfmDrtzGx1cjJYEzyajAJykuopgAcdC6O1LauxC8qYrW20b5fYGhOCRV_E4q4vSI72xt9ifZYjp5GzLCMNAvVqWQxQ</recordid><startdate>201604</startdate><enddate>201604</enddate><creator>Elsden, T.</creator><creator>Wright, A. 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D.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4390-fe75c93888c996f359f3ba552b8aa02312b5e179718b86caa092384035bdb3243</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Coefficients</topic><topic>Computer simulation</topic><topic>Earth magnetosphere</topic><topic>Earth science</topic><topic>Energy absorption</topic><topic>Estimating</topic><topic>Estimation</topic><topic>Field line resonance</topic><topic>Flanks</topic><topic>Geophysics</topic><topic>Magnetic fields</topic><topic>Magnetosphere</topic><topic>Magnetospheres</topic><topic>Mathematical models</topic><topic>MHD waves</topic><topic>Reflectance</topic><topic>Reflection</topic><topic>Reflection coefficient</topic><topic>Satellite data</topic><topic>Satellite observation</topic><topic>Test procedures</topic><topic>Transport</topic><topic>ULF</topic><topic>ULF waves</topic><topic>Wave propagation</topic><topic>waveguide modes</topic><topic>Waveguides</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Elsden, T.</creatorcontrib><creatorcontrib>Wright, A. 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Space physics</jtitle><date>2016-04</date><risdate>2016</risdate><volume>121</volume><issue>4</issue><spage>3381</spage><epage>3394</epage><pages>3381-3394</pages><issn>2169-9380</issn><eissn>2169-9402</eissn><abstract>We present an analytical method for determining incident and reflection coefficients for flank ULF compressional waveguide modes in Earth's magnetosphere. In the flank magnetosphere, compressional waves propagate azimuthally but exhibit a mixed standing/propagating nature radially. Understanding this radial dependence will yield information on the energy absorption and transport of these waves. We provide a step by step method that can be applied to observations of flank ULF waves, which separates these fluctuations into incident and reflected parts. As a means of testing, we apply the method to data from a numerical waveguide simulation, which shows the effect on the reflection coefficient when energy is absorbed at a field line resonance.
Key Points
Derive a method for estimating incident and reflection coefficients for flank ULF waveguide modes
Test method on simulation data which provide consistent results
Method will be applied to satellite data in the future</abstract><cop>Washington</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/2016JA022351</doi><tpages>14</tpages><orcidid>https://orcid.org/0000-0002-2643-2202</orcidid><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| source | Wiley Online Library Journals; Wiley Online Library (Online service) |
| subjects | Coefficients Computer simulation Earth magnetosphere Earth science Energy absorption Estimating Estimation Field line resonance Flanks Geophysics Magnetic fields Magnetosphere Magnetospheres Mathematical models MHD waves Reflectance Reflection Reflection coefficient Satellite data Satellite observation Test procedures Transport ULF ULF waves Wave propagation waveguide modes Waveguides |
| title | Deciphering satellite observations of compressional ULF waveguide modes |
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