 |
 |
 |
 |
||||||||||||||||
|
High ocean tides are produced by "bulges" that form from the horizontal flow of water toward TWO regions on the earth. "Why two regions?" you might ask. One always faces the Moon...where the moon's gravitational pull is strongest. The other always faces directly away...where the moon's gravitational pull is weakest. In this image the gravitational pull of the moon and the rotation of Earth combine to produce two bulges: one on the side close to the moon, one on the side opposite the moon. HIgh tides occur at the bulges. Low tide occurs 90 degrees away from the bulges. Low tides are created by a corresponding withdrawal of
water from regions around the earth midway between the "bulges." So,
the shift between high and low tides results from Earth's daily rotation
BENEATH: two tidal bulges AND two tidal depressions. |
|||||||||||||||||||
|
|||||||||||||||||||
