Seafloor Mapping Flashcard

Front

What is the first step in exploring the unknown depths of the global ocean?

Back

Mapping the seafloor

Front

What are the three axes used to map the location of anything?

Back

Latitude, longitude, elevation

Front

What does bathymetric maps show the physical shape of?

Back

Seafloor

Front

What is the art and science of mapmaking called?

Back

Cartography

Front

What technology was developed in the 1920s and significantly improved seafloor mapping?

Back

Sonar

Front

What does SONAR stand for?

Back

Sound Navigation and Ranging

Front

What type of sonar systems emit a pulse of sound into the water?

Back

Active sonar

Front

What is the longest mountain range on Earth?

Back

Mid-ocean ridge

Front

What is the deepest point in the ocean called?

Back

Challenger Deep

Front

What was the name of the British ship whose crew first measured the seafloor depth in the Challenger Deep?

Back

HMS Challenger