This looks like a job for a marine surveyor.
Robert was a surveyor
here i am
The surveyor used specialized tools to measure and map the land accurately.
The properties were surveyed by a land surveyor in order to resolve the boundary line dispute.
When writing a sentence
When used in a sentence a surveyor means a person who surveys (measures) land.
Who is a marine surveyor? Businesses that inspect and appraises boats.http://www.marinesurveyor.com/
The surveyor will mark the real-estate plot before we set the foundations.
the oil spill imperiled local marine life.
This is for surveying: He was surveying the house, thinking about if he should buy it or not. =)
"Are you still in the marine?"
Marine biologists use hydrophones to record underwater sounds.