From SEG Wiki
Revision as of 20:45, 4 May 2017 by Lilianameleza (talk | contribs) (Marked this version for translation)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search
Other languages:
English • ‎español • ‎中文

1. The innermost layer of the ionosphere. It occurs at heights of 50 to 90 km during daylight hours, reflects ELF, VLF, and LF waves, absorbs MF waves, and partially absorbs HF waves. Some consider the D-layer as starting at 70-80 km and merging with the E-layer. See Figure A-22. 2. A layer within the Earth; see Figure E-1.