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21.
The idea that coronal mass ejections (CMEs) pile up mass in their transport through the corona and heliosphere is widely accepted. However, it has not been shown that this is the case. We perform an initial study of the volume electron density of the fronts of 13 three-part CMEs with well-defined frontal boundaries observed with the Solar and Heliospheric Observatory/Large Angle and Spectrometric COronagraph (SOHO/LASCO) white-light coronagraphs. We find that, in all cases, the volume electron density decreases as the CMEs travel through the LASCO-C2 and -C3 fields of view, from \(2.6\,\mbox{--}\,30~\mbox{R}_{\odot}\). The density decrease follows closely a power law with an exponent of ?3, which is consistent with a simple radial expansion. This indicates that in this height regime there is no observed pile-up. 相似文献
22.
Dynamics of a large tropical lake: Lake Maracaibo 总被引：1，自引：0，他引：1
23.
Angelos Mavromatidis 《International Journal of Earth Sciences》2008,97(3):623-634
Seismic reflection profiles indicate the compressive nature of the structural style associated with the major uplift events
in the Cooper–Eromanga Basins. Inversion geometries and reactivated features attest to a period of compression during Late
Triassic–Early Jurassic times. In the Eromanga Basin, compressional structural styles associated with Late Cretaceous–Tertiary
are apparent. Many of the Late Cretaceous–Tertiary structures coincide with exhumation highs in Late Cretaceous–Tertiary times.
The two-layer lithospheric compression model is considered as the most complete explanation of both the uplift of areas subject
to compression and crustal thickening, and of the regional uplift of areas not subject to any apparent Late Cretaceous–Tertiary
compression. In the model, compression and thickening in the lower lithosphere is decoupled and laterally displaced from that
in the upper crust. Thickening of the mantle lithosphere without thickening of the overlying crust can account for the initial
subsidence then uplift of not inverted platform areas. The opening of the Tasman Sea and the Coral Seas can lead to stress
transmission in the interior of the continent. These stresses are likely to generate uplift but cannot explain the distribution
of uplift in areas not subject to compression. 相似文献