Schusterguide - Ch09 - Tides

Front 1

what causes the tides

Back 1

gravitational attraction of sun and moon

Front 2

two massive hills of water that rotate around Earth and cause the tides

Back 2

tidal bulges

Front 3

what percentage of the size of the lunar bulge is the solar bulge

Back 3

46%

Front 4

theoretical tide that would exist if there was an ocean of uniform depth, no friction, and no continents

Back 4

equilibrium tide

Front 5

actual tide that exists in the presence of factors such as ocean depth, continents, and friction

Back 5

dynamic tide

Front 6

the time that elapses between successive passages of the moon across a certain point on Earth; how long

Back 6

lunar month; 29.5 days

Front 7

phase when moon is between sun and earth (in conjunction)

Back 7

new moon

Front 8

phase when moon is behind earth with respect to the sun (in opposition)

Back 8

full moon

Front 9

phase when moon forms a right angle with the earth and sun

Back 9

quarter moon

Front 10

point where the moon is closest to earth in its elliptical orbit; farthest point

Back 10

perigee; apogee

Front 11

point where the sun is closest to earth in its elliptical orbit; farthest point

Back 11

perihelion; aphelion

Front 12

time for moon to complete one orbit around Earth relative to a fixed point; how long

Back 12

anomalistic month; 27.5 days

Front 13

point on Earth closest to moon that marks one crest of the lunar bulge

Back 13

zenith

Front 14

point on Earth farthest from moon that marks one crest of the lunar bulge

Back 14

nadir

Front 15

the time it takes a point on the Earth to start under the moon, then rotate back into position under it; how long

Back 15

lunar day; 24 hrs 50 mins

Front 16

sun is over equator and is moving from south to north; when

Back 16

vernal equinox; March 21

Front 17

sun reaches farthest northern point in sky at tropic of Cancer (23.5°N)

Back 17

summer solstice

Front 18

sun is over equator and is moving from north to south; when

Back 18

autumnal equinox; September 23

Front 19

sun reaches farthest southern point in sky above the tropic of Capricorn (23.5°S)

Back 19

winter solstice

Front 20

analysis that factors real-time data into a mathematical model

Back 20

harmonic analysis

Front 21

can the tides be predicted purely mathematically right now

Back 21

no

Front 22

line where the highest high tides have reached

Back 22

splash line

Front 23

angle between earth’s equatorial plane and the orbital plane of itself another object

Back 23

declination

Front 24

maximum declination of earth to moon; maximum declination of earth to sun

Back 24

28.5 degrees; 23.5 degrees

Front 25

the plane of Earth’s orbital motion

Back 25

ecliptic

Front 26

vertical difference between height of water at high and low tides

Back 26

tidal range

Front 27

3 celestial bodies are in a row

Back 27

syzygy

Front 28

the reference point/level of a tide (zero tide can be wherever you put it)

Back 28

datum

Front 29

tide that occurs when the tidal range is maximized because the solar and lunar bulge constructively interfere

Back 29

spring tide

Front 30

tide that occurs when the tidal range is minimized because the solar and lunar bulge destructively interfere

Back 30

neap tide

Front 31

what is the orientation of the earth, sun, and moon during: spring tides; neap tides

Back 31

line; right angle

Front 32

two high and two low tides each lunar day; tidal period

Back 32

semidiurnal tide; 12 hrs 25 mins

Front 33

single high and low tide each lunar day; tidal period

Back 33

diurnal tide: 24 hrs 50 mins

Front 34

where in the US are semidiurnal tides found; where in the US are diurnal tides found

Back 34

US Atlantic coast; Gulf of Mexico

Front 35

variation in heights of successive diurnal tides

Back 35

diurnal inequality

Front 36

tide with diurnal inequality and a period of 12 hrs 25 mins

Back 36

mixed semidiurnal tide

Front 37

where are mixed semidiurnal tides found in the US

Back 37

US Pacific coast

Front 38

which is the most common type of tide in the world: semidiurnal, diurnal, mixed semidiurnal

Back 38

mixed semidiurnal tide

Front 39

tide occurring when spring tides coincide with perigee, resulting in high tidal ranges

Back 39

proxigean tide

Front 40

when was the last absolute maximum tide; when will the next occur

Back 40

1700; 3300

Front 41

the periodic rise and fall of the local sea level due to the gravitational pull of the sun and moon

Back 41

tides

Front 42

tide in the open ocean basin that travels radially around a point once in a tidal period

Back 42

rotary current

Front 43

point that a rotary current tide travels around

Back 43

amphidromic point

Front 44

marks the crest of a tidal wave and connects points that have high tide simultaneously

Back 44

cotidal line

Front 45

line that connects points with equal tidal range and is perpendicular to a cotidal line, so it runs in loops around the amphidromic point

Back 45

corange line

Front 46

the apparent motion of a tide toward and away from shore

Back 46

reversing/alternating current

Front 47

receding movement of water that occurs between the transition from high to low tide

Back 47

ebb current

Front 48

oncoming movement of water that occurs between the transition from low to high tide

Back 48

flood current

Front 49

period when the water is not moving at high or low tide because it is between an ebb and flood current

Back 49

slack water

Front 50

rapidly spinning body of water in shallow passages near the coast that occur when a tidal current is deflected by an obstacle

Back 50

whirlpool

Front 51

the Scandinavian word for a strong whirlpool

Back 51

maelstrom

Front 52

where are the strongest whirlpools and tidal current in the world found

Back 52

Saltstraumen, Norway

Front 53

largest whirlpool in North America; where

Back 53

Old Sow; north of Maine

Front 54

bay that experiences the largest tidal ranges in the world; maximum tidal range

Back 54

Bay of Fundy, 17 m

Front 55

2 factors that causes unusually large tidal range in the Bay of Fundy

Back 55

narrowing of bay, tidal resonance

Front 56

a steep wave traveling up a low-lying river as the result of an oncoming high tide

Back 56

tidal bore

Front 57

the word for a tidal bore in Brazil

Back 57

pororocas

Front 58

on what river are the highest tidal bores; how high

Back 58

Chientang River, China; 8 m

Front 59

on what river do tidal bores go farther into the river than anywhere else

Back 59

Amazon River, Brazil

Front 60

where are the largest tidal bores in the US

Back 60

Cook Inlet, Alaska