heat equator

1. The line which circumscribes the earth and connects all points of highest mean annual temperature for their longitudes. 2. The parallel of latitude of 10øN, which has the highest mean temperature of any latitude. Also known as thermal equator.

Related terms:

• astronomical equator
• hyetal equator
• meteorological equator
• magnetic equator
• geodetic equator
• equator
• heat storage
• continental heat flow
• oceanic heat flow
• terrestrial equator