(from the article `protonosphere`) ...atomic hydrogen and protons (ionic hydrogen) are the dominant constituents; it can be considered the outermost extension of the ionosphere. In the ... Earth`s atmosphere is segmented into two major zones. The homosphere is the lower of the two and the location in which turbulent mixing dominates the...
Found on http://www.britannica.com/eb/a-z/h/66
The lower layer in a two part classification of the atmosphere based on the general homogeneity of chemical composition. In this layer, nitrogen, oxygen, argon, carbon dioxide, and the trace gases dominate and remain constant in their relative proportions. The homosphere extends from the Earth's surface to a height of 80 to 100 kilometers depending
Found on http://www.physicalgeography.net/physgeoglos/h.html
The Earth atmosphere below 105 km altitude where complete vertical mixing yields a near-homogeneous composition of about 78.1% N2, 20.9% O2, 0.9% Ar, and 0.1% CO2 and trace constituents. The homopause (or turbopause) marks the ceiling of the homosphere. The homosphere can be broadly divided into three distinct regimes
Found on http://www.braeunig.us/space/glossary.htm
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