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26 Cards in this Set

  • Front
  • Back
The oceans cover ____ % of the planet and make up ____ % of the water.
71; 97
only about ___ % of the ocean has been explored.
History of Oceanography

-4000 BC
-600 BC
-450 BC
-325 BC
-200 BC
egyptians make vessels
Phoenicians sailed the world to trade
1st published map
navigation using lattitude
in 150 AD who made an accurate map with longitude and lattitude lines?
What culture sailed from Polynesia to Hawaii.
The lapita culture of the polynesian islands.
who was credited with figuring out the circumference of Earth.
In the middle ages the Europeans began building vessels. How?
carvel built hulls with smooth sided planks
The vikings built ships differently. How so?
they used overlapping planks (water tight).
In the end of the middle ages, which country sent hundreds of ships with thousands of crew?
The chinnese were also the first to do what?
use a compass.
The Age of exploration began with
Christopher Columbus.
Magellan sailed for portugal. he became the first to do what?
Circumnavigate the world.
Who was the first to reach the WEST coast of North america?
Sir Frances Drake
Lattitude became easily determined by your position relative to the North star. How was the problem of Longitude solved?
With a wrist watch. Earth rotates 360 degrees/ 24 hours or 15 degrees/hr. By keeping time in both locations you can determine your longitude.
The first scientific voyage was on who's expedition?
James Cook
On James Cook's expedition what was performed
Depth sounding
Studied culture and history
charted the pacific
Protected against scurvy w/ fruit.
Matthew Fontaine Maury
Collected data on wind and currents.

Mapped Atlantic floor

Redesigned sounding techniques.
First expedition EXCLUSIVELY FOR Marine science
The HMS Challenger
What was discovered as part of the HMS Challenger's mission?
The mariana trench (deepest)

Recorded temperature, salinity and current

Disproved that there was no life 500 m below sea.
WW II technology
Echo sounders, seismic and magnetic studies.
Post WWII Technology
Satelite technology, Ocean drilling.
is a scaled down (reduced in size) 3-dimensional representation of the earth’s surface
A projection of a curved surface onto a plane)
a 2-dimensional representation
1 degree of lattitude is about
60 nautical miles or 69 miles
The prime meridian runs through
Greenwhich, England
If the sun rises in the east which way is earth turning
East; CCW from above