Wave reflection and wave disorder in the solar transition zone and corona

Solar Physics ◽  
1978 ◽  
Vol 58 (2) ◽  
pp. 307-318 ◽  
Author(s):  
Donat G. Wentzel
Keyword(s):  
Transition Zone ◽  
Wave Reflection ◽  
Solar Transition

Heating of the solar transition zone and corona

Solar Physics ◽  
1976 ◽  
Vol 50 (1) ◽  
pp. 99-108 ◽  
Author(s):  
D. Vanbeveren ◽  
C. De Loore
Keyword(s):  
Transition Zone ◽  
Solar Transition

Solar transition zone pressures from EUV observations of O IV and N IV

1982 ◽  
Vol 259 ◽  
pp. 366 ◽  
Author(s):  
K. P. Dere ◽  
J.-D. F. Bartoe ◽  
G. E. Brueckner
Keyword(s):  
Transition Zone ◽  
Solar Transition

A search for a turbulent-free region in the solar transition zone

1977 ◽  
Vol 216 ◽  
pp. L119 ◽  
Author(s):  
U. Feldman ◽  
G. A. Doschek
Keyword(s):  
Transition Zone ◽  
Solar Transition ◽  
Free Region

Mass motions in optically thin solar transition zone lines

1981 ◽  
Vol 195 (2) ◽  
pp. 107-113 ◽  
Author(s):  
G. A. Doschek ◽  
John T. Mariska ◽  
U. Feldman
Keyword(s):  
Transition Zone ◽  
Solar Transition

Area variation with temperature of supergranule network features in the solar transition zone

Solar Physics ◽  
1978 ◽  
Vol 58 (1) ◽  
pp. 31-36 ◽  
Author(s):  
Edward J. Eadon ◽  
Donald E. Billings
Keyword(s):  
Transition Zone ◽  
Solar Transition ◽  
Area Variation

The energy balance and pressure in the solar transition zone for network and active region features

1979 ◽  
Vol 233 ◽  
pp. 741 ◽  
Author(s):  
K. R. Nicolas ◽  
J.-D. F. Bartoe ◽  
G. E. Brueckner ◽  
M. E. Vanhoosier
Keyword(s):  
Energy Balance ◽  
Active Region ◽  
Transition Zone ◽  
Solar Transition

Explosive events in the solar transition zone

Solar Physics ◽  
1989 ◽  
Vol 123 (1) ◽  
pp. 41-68 ◽  
Author(s):  
K. P. Dere ◽  
J. -D. F. Bartoe ◽  
G. E. Brueckner
Keyword(s):  
Transition Zone ◽  
Solar Transition ◽  
Explosive Events

Outflows and ejections in the solar transition zone

1986 ◽  
Vol 310 ◽  
pp. 456 ◽  
Author(s):  
K. P. Dere ◽  
J.-D. F. Bartoe ◽  
G. E. Brueckner
Keyword(s):  
Transition Zone ◽  
Solar Transition

Marine PSSP reflections with a bottom velocity transition zone

Geophysics ◽  
1992 ◽  
Vol 57 (1) ◽  
pp. 161-170 ◽  
Author(s):  
N. W. Kim ◽  
A. J. Seriff
Keyword(s):  
Gulf Of Mexico ◽  
Transition Zone ◽  
Shear Wave ◽  
Wave Reflection ◽  
Conversion Factor ◽  
Shear Velocity ◽  
Data Acquisition System ◽  
Theoretical Considerations ◽  
Water Bottom ◽  
Low Shear

Marine shear‐wave reflection methods using the conventional data acquisition system (i.e., source and receiver in water) rely on two mode conversions at the water bottom to produce shear reflections such as PSSP. Some theoretical considerations and the results of a marine check shot survey conducted in the Gulf of Mexico demonstrate that the difficulty in observing PSSP events is attributable to weak P-S and S-P conversion at the bottom in regions with very low shear velocity (a few hundred ft/s or less) sediments at the bottom. For a simple water bottom with a low shear‐wave velocity, water over a uniform half space, the PS conversion factor is proportional to [Formula: see text] and the SP conversion factor is proportional to [Formula: see text], where [Formula: see text] is the bottom shear velocity. For [Formula: see text] their product gives PSSP reflections that can be comparable in amplitude to typical PPPP events. For [Formula: see text], the PSSP events should be about 30 dB weaker and probably not visible. For typical Gulf of Mexico sediments with a shear velocity transition zone several tens of feet thick at the bottom, the situation is even worse, since the velocities start near zero and may not reach 500 ft/s. This condition is common in many areas of recent sedimentations.

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