Show all results sharing this subject:
1 The outer core of the Earth between about 2886 km and 5156 km depth, mainly defined on seismic velocities.
2 The ionospheric layer at about 100 km height from which 3.5 MHz radio waves are strongly reflected.
A Dictionary of Earth Sciences »
Astronomy and Astrophysics.
See all related items in Oxford Index »
Search for the text `E-layer' anywhere in Oxford Index »