FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2949599403> ?p ?o ?g. }

• W2949599403 endingPage "49" @default.
• W2949599403 startingPage "35" @default.
• W2949599403 abstract "Abstract. In order to clarify the equatorial electrojet effects on ground magnetic pulsations in central South America, we statistically analyzed the amplitude structure of Pc3 and Pc5 pulsations recorded during days considered quiet to moderately disturbed at multiple equatorial stations nearly aligned along the 10∘ magnetic meridian. It was observed that Pc3 amplitudes are attenuated around noon at the dip equator for periods shorter than ∼35 s. It is proposed that daytime Pc3s are related to MHD (magnetohydrodynamic) compressional wave vertically incident on the ionosphere, with the screening effect induced by enhanced conductivity in the dip equator causing wave attenuation. Daytime Pc5s showed amplitude enhancement at all equatorial stations, which can be explained by the model of waves excited at higher latitudes and propagating equatorward in an Earth–ionosphere waveguide. However, a slight depression in Pc5 amplitude compared to neighboring equatorial stations and a phase lag in relation to an off-equatorial station were detected at the dip equator. This wave amplitude depression in the Pc5 frequency band cannot be explained by the ionospheric waveguide model alone, and we propose that an alternative propagation model that allows ULF (ultra-low-frequency) waves to penetrate directly from the magnetosphere to low latitudes could be operating simultaneously to produce these features at the dip equator. Significant effects of the sunrise terminator on Pc3 pulsations were also observed at the stations closest to the dip equator. Contrary to what is reported at other longitudes, in central South America the sunrise effect decreases the D∕H amplitude ratio. We suggest that these differences may arise from the unique characteristics of this sector, with a strong longitudinal variation in the magnetic declination and precipitation of energetic particles due to the presence of the South Atlantic Magnetic Anomaly (SAMA). The H-component amplification can be explained by enhancements of the zonal electric field near the magnetic equator driven by F-region neutral winds and waves in the fast-mode of propagation during sunrise." @default.
• W2949599403 created "2019-06-27" @default.
• W2949599403 creator A5065660725 @default.
• W2949599403 creator A5071925907 @default.
• W2949599403 creator A5085093227 @default.
• W2949599403 date "2020-01-07" @default.
• W2949599403 modified "2023-10-13" @default.
• W2949599403 title "Latitudinal variation of Pc3–Pc5 geomagnetic pulsation amplitude across the dip equator in central South America" @default.
• W2949599403 cites W1517814695 @default.
• W2949599403 cites W1580755478 @default.
• W2949599403 cites W1582742941 @default.
• W2949599403 cites W1964938682 @default.
• W2949599403 cites W1969113607 @default.
• W2949599403 cites W1981216752 @default.
• W2949599403 cites W1989649189 @default.
• W2949599403 cites W1990276068 @default.
• W2949599403 cites W1990739089 @default.
• W2949599403 cites W1997342072 @default.
• W2949599403 cites W1997861996 @default.
• W2949599403 cites W2000828371 @default.
• W2949599403 cites W2025215220 @default.
• W2949599403 cites W2025733072 @default.
• W2949599403 cites W2026196331 @default.
• W2949599403 cites W2026342851 @default.
• W2949599403 cites W2026512931 @default.
• W2949599403 cites W2031527549 @default.
• W2949599403 cites W2034728083 @default.
• W2949599403 cites W2040934995 @default.
• W2949599403 cites W2049733611 @default.
• W2949599403 cites W2053080390 @default.
• W2949599403 cites W2054273618 @default.
• W2949599403 cites W2056287142 @default.
• W2949599403 cites W2062650621 @default.
• W2949599403 cites W2063584752 @default.
• W2949599403 cites W2064032960 @default.
• W2949599403 cites W2067466150 @default.
• W2949599403 cites W2074221808 @default.
• W2949599403 cites W2076695431 @default.
• W2949599403 cites W2078708127 @default.
• W2949599403 cites W2079379490 @default.
• W2949599403 cites W2080846694 @default.
• W2949599403 cites W2081237897 @default.
• W2949599403 cites W2082452562 @default.
• W2949599403 cites W2091773968 @default.
• W2949599403 cites W2094969007 @default.
• W2949599403 cites W2132596548 @default.
• W2949599403 cites W2146116815 @default.
• W2949599403 cites W2147416990 @default.
• W2949599403 cites W2165000042 @default.
• W2949599403 cites W2169021428 @default.
• W2949599403 cites W2244025357 @default.
• W2949599403 cites W2491071281 @default.
• W2949599403 cites W2609572943 @default.
• W2949599403 doi "https://doi.org/10.5194/angeo-38-35-2020" @default.
• W2949599403 hasPublicationYear "2020" @default.
• W2949599403 type Work @default.
• W2949599403 sameAs 2949599403 @default.
• W2949599403 citedByCount "3" @default.
• W2949599403 countsByYear W29495994032021 @default.
• W2949599403 countsByYear W29495994032022 @default.
• W2949599403 countsByYear W29495994032023 @default.
• W2949599403 crossrefType "journal-article" @default.
• W2949599403 hasAuthorship W2949599403A5065660725 @default.
• W2949599403 hasAuthorship W2949599403A5071925907 @default.
• W2949599403 hasAuthorship W2949599403A5085093227 @default.
• W2949599403 hasBestOaLocation W29495994031 @default.
• W2949599403 hasConcept C115260700 @default.
• W2949599403 hasConcept C116403925 @default.
• W2949599403 hasConcept C120665830 @default.
• W2949599403 hasConcept C121332964 @default.
• W2949599403 hasConcept C122523270 @default.
• W2949599403 hasConcept C127313418 @default.
• W2949599403 hasConcept C1276947 @default.
• W2949599403 hasConcept C12980444 @default.
• W2949599403 hasConcept C13280743 @default.
• W2949599403 hasConcept C162725370 @default.
• W2949599403 hasConcept C180205008 @default.
• W2949599403 hasConcept C199635899 @default.
• W2949599403 hasConcept C38262639 @default.
• W2949599403 hasConcept C60365795 @default.
• W2949599403 hasConcept C62520636 @default.
• W2949599403 hasConcept C8058405 @default.
• W2949599403 hasConcept C85148207 @default.
• W2949599403 hasConcept C91586092 @default.
• W2949599403 hasConceptScore W2949599403C115260700 @default.
• W2949599403 hasConceptScore W2949599403C116403925 @default.
• W2949599403 hasConceptScore W2949599403C120665830 @default.
• W2949599403 hasConceptScore W2949599403C121332964 @default.
• W2949599403 hasConceptScore W2949599403C122523270 @default.
• W2949599403 hasConceptScore W2949599403C127313418 @default.
• W2949599403 hasConceptScore W2949599403C1276947 @default.
• W2949599403 hasConceptScore W2949599403C12980444 @default.
• W2949599403 hasConceptScore W2949599403C13280743 @default.
• W2949599403 hasConceptScore W2949599403C162725370 @default.
• W2949599403 hasConceptScore W2949599403C180205008 @default.
• W2949599403 hasConceptScore W2949599403C199635899 @default.
• W2949599403 hasConceptScore W2949599403C38262639 @default.
• W2949599403 hasConceptScore W2949599403C60365795 @default.

• next