ascent vs change of location

ascent and change of location both are nouns.

Word	Noun	Adjective	Verb	Adverb
ascent	Yes	No	No	No
change of location	Yes	No	No	No

As nouns, change of location is a hypernym of ascent; that is, change of location is a word with a broader meaning than ascent:

ascent: a movement upward; rise above the ground
change of location: a movement through space that changes the location of something

Other hypernyms of ascent include travel.

ascent (noun)	change of location (noun)
the act of changing location in an upward direction	a movement through space that changes the location of something
a movement upward; rise above the ground
an upward slope or grade (as in a road)