ALTITUDE
type: Concept

MESOPAUSE
type: Concept
change note: 2012-06-28 15:13:32.0 [saritz] undo move add broader relation (MESOPAUSE [dacbf270-1734-4503-bab8-a32cdaff3012,20723] - ALTITUDE [16bfcf54-f8e1-4c8e-9bd4-a1ac06ea95a0,20169]); delete broader relation (null);
change note: 2012-06-28 15:13:00.0 [saritz] Move Concepts add broader relation (MESOPAUSE [dacbf270-1734-4503-bab8-a32cdaff3012,20723] - ATMOSPHERE [c47f6052-634e-40ef-a5ac-13f69f6f4c2a,19875]); delete broader relation (null);
definition: The top of the mesosphere and the base of the thermosphere. The mesopause is usually located at heights of 85¿95 km, and is the site of the coldest temperatures in the atmosphere. Temperatures as low as 100 K (− 173¿C) have been measured at the mesopause by rockets.
in scheme: sciencekeywords