“Hook” structure in MARSIS ionogram and its interpretation
“Hook” structure in MARSIS ionogram and its interpretation
复制标题
MARSIS 电离图中的“Hook”结构及其解释
DOI:
10.1029/2009gl038844
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发表时间:
2009-07
影响因子:
5.2
通讯作者:
中科院分区:
文献类型:
--
作者:
MARSIS/MEX is a low frequency radar used to sound the ionosphere of Mars. In general the echo trace associated with reflections in nadir indicates an ionosphere with a main maximum electron density at typically about 130 km altitude, and a monotonously decreasing density with increasing altitude. Another maximum is sometimes detected at higher altitudes, indicating a double layer in the upper ionosphere. Sometimes a special structure (here called a “hook”) is observed at the low frequency end of the trace: as the sounding frequency decreases the delay time of sounding signal increases rapidly. It is here proposed that this signature indicates a secondary maximum with density which is so low that it can be only partly resolved by the radar. An analytical inversion approach coping with the “hook” case is then proposed. It is further suggested that the “hook” is caused by vertical wavelike structures in the Martian topside ionosphere.
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影响因子:
10.3
作者:
E. Nielsen;H. Zou;D. Gurnett;D. Kirchner;D. Morgan;R. Huff;R. Orosei;A. Safaeinili;J. Plaut;G. Picardi
通讯作者:
E. Nielsen;H. Zou;D. Gurnett;D. Kirchner;D. Morgan;R. Huff;R. Orosei;A. Safaeinili;J. Plaut;G. Picardi
影响因子:
--
作者:
N. Ness;M. Acuna;J. Connerney;A. Kliore;T. Breus;A. M. Krymskii;P. Cloutier;S. Bauer
通讯作者:
N. Ness;M. Acuna;J. Connerney;A. Kliore;T. Breus;A. M. Krymskii;P. Cloutier;S. Bauer
影响因子:
2.6
作者:
D. Gurnett;R. Huff;D. Morgan;A. Persoon;T. Averkamp;D. Kirchner;F. Duru;F. Akalin;A. Kopf;E. Nielsen;A. Safaeinili;J. Plaut;G. Picardi
通讯作者:
D. Gurnett;R. Huff;D. Morgan;A. Persoon;T. Averkamp;D. Kirchner;F. Duru;F. Akalin;A. Kopf;E. Nielsen;A. Safaeinili;J. Plaut;G. Picardi
影响因子:
--
作者:
F. Duru;D. Gurnett;D. Morgan;R. Modolo;A. Nagy;D. Najib
通讯作者:
F. Duru;D. Gurnett;D. Morgan;R. Modolo;A. Nagy;D. Najib
DOI:
--
发表时间:
1961
期刊:
--
影响因子:
--
作者:
K. Budden
通讯作者:
K. Budden