About: http://webisa.webdatacommons.org/421562593

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Atmosphere and ocean are poor examples of the point you were trying to illustrate because there is far more earth mass below the bottom of the ocean/atmosphere, but technically yes there is less gravity there.
http://www.w3.org/ns/prov#wasQuotedFrom	phys.org