Oceanography- Latitude and Longitude & Manipulating Scientific Notation

Who first invested latitude and longitude

Eratosthenes

What is latitude?

a horizontal measure of distance north or south of the Equator (up and down); circles that pass through Earth at a right angle to the rotational axis

What is the difference between equator and Equator?

Equator is the ONLY line of latitude that is a great circle, 0 degrees at the center of the Earth; equators are small circles that vary in size

What is longitude?

a vertical measure of distance east or west with no obvious point of reference (left or right); circles of equal size from the polar axes 

Prime Meridian

point at 0 degrees longitude that runs through Greenwich, England

What is a rhumb line?

the straight line that reflects a constant compass direction on a Mercator map project- not the real shortest distance between two points across the globe

How do you find the longitude of your location’s antipode (opposite)?

subtract your first locations degree of longitude from 180 to get your antipodes degrees- must always equal to 180 degrees

How do you find the latitude of your location’s antipode (opposite)?

your first locations degree of latitude will be the same for your antipodes in the opposite direction (if your first latitude is measured north, your second latitude will be the same value measured south)

How do you add or subtract numbers in scientific notation?

step one: convert both numbers to the same exponent

step two: add/subtract the coefficients and change the exponent so the numbers are between 1-10

How do you multiply numbers in scientific notation?

step one: multiply the base numbers

step two: add the exponents

How do you divide numbers in scientific notation?

step one: divide the numerator by the denominator

step two: subtract the exponents