N.O.A.A Tide Questions.
1: What are tides?
The alternating rise and fall of sea level due to the moon's gravitational pull
2: What causes tides? Explain in detail (show diagram)
Forces that are generated by the gravitational pull of the moon and the sun and the rotaion of the earth, tug sea water into two enormous buldges.
The alternating rise and fall of sea level due to the moon's gravitational pull
2: What causes tides? Explain in detail (show diagram)
Forces that are generated by the gravitational pull of the moon and the sun and the rotaion of the earth, tug sea water into two enormous buldges.
3: Where do tides occur?
One buldge is located on the edge of the planet closest to the moon. The other forms at the opposite side of the planet.
4: Explain- High and low tides (difference)
High tides are when the sea level rises up to it's highest point. Low tides are when the sea level drops, or ebbs, to it's lowest tide point.
5: Which object exerts the most force on the tidal bulge? Why?
Even though the sun is larger and has more mass, the moon is closer so it exerts the most force.
6: What happens when the sun and moon align? What happens when they are perpendicular to
each other?
When the sun and moon align, they combine gravitational forces producing the highest and lowest tides called Spring Tides.
7: What are some of the other factors that affect tides?
The range, magnitude, and the shape of the sea floor.
One buldge is located on the edge of the planet closest to the moon. The other forms at the opposite side of the planet.
4: Explain- High and low tides (difference)
High tides are when the sea level rises up to it's highest point. Low tides are when the sea level drops, or ebbs, to it's lowest tide point.
5: Which object exerts the most force on the tidal bulge? Why?
Even though the sun is larger and has more mass, the moon is closer so it exerts the most force.
6: What happens when the sun and moon align? What happens when they are perpendicular to
each other?
When the sun and moon align, they combine gravitational forces producing the highest and lowest tides called Spring Tides.
7: What are some of the other factors that affect tides?
The range, magnitude, and the shape of the sea floor.
8: What are the zones of the inter tidal zone?
Along most shores, the intertidal zone can be clearly separated into the following subzones: high tide zone, middle tide zone, and low tidezone. The intertidal zone is one of a number of marine biomes or habitats, including estuaries, neritic, surface and deep zones.
9: What are some of the challenges for the critters of the inter tidal zone? Explain.
The Intertidal Zone is a very harsh living environment for organisms because its ever changing conditions. Animals in this zone are constantly facing challenges such as varying salinity, drying out by wind and sunlight, predators, strong currents that carry them back to sea, and varying weather conditions.
10: How do the inter tidal organisms COPE with the harsh environment?
Some animals, such as sea urchins, carve holes in the rocks and hide in these holes that provide moisture during low tide. Mussels and other shell organisms will tightly close their shell to keep in moisture. Snails secrete a slime that gives them moisture during the long hours of low tide and anemones will fold in their tentacles to hold in moisture. Each of these techniques help the creatures from drying out. On the other hand, many organisms use rocks to help with this problem. Sea Stars and anemones have suction cups, which allow them to latch onto rocks so they are not carried out to sea. Mussels use a thread-like substance called byssal threads that stick to the rocks. Anemones have a unique jelly-like body, which can withstand the crashing waves.
11: What are some of the adaptations that help organisms cope with wave action?
The animals can use rocks, shells, and suction cups to stay in place when strong waves hit.
Along most shores, the intertidal zone can be clearly separated into the following subzones: high tide zone, middle tide zone, and low tidezone. The intertidal zone is one of a number of marine biomes or habitats, including estuaries, neritic, surface and deep zones.
9: What are some of the challenges for the critters of the inter tidal zone? Explain.
The Intertidal Zone is a very harsh living environment for organisms because its ever changing conditions. Animals in this zone are constantly facing challenges such as varying salinity, drying out by wind and sunlight, predators, strong currents that carry them back to sea, and varying weather conditions.
10: How do the inter tidal organisms COPE with the harsh environment?
Some animals, such as sea urchins, carve holes in the rocks and hide in these holes that provide moisture during low tide. Mussels and other shell organisms will tightly close their shell to keep in moisture. Snails secrete a slime that gives them moisture during the long hours of low tide and anemones will fold in their tentacles to hold in moisture. Each of these techniques help the creatures from drying out. On the other hand, many organisms use rocks to help with this problem. Sea Stars and anemones have suction cups, which allow them to latch onto rocks so they are not carried out to sea. Mussels use a thread-like substance called byssal threads that stick to the rocks. Anemones have a unique jelly-like body, which can withstand the crashing waves.
11: What are some of the adaptations that help organisms cope with wave action?
The animals can use rocks, shells, and suction cups to stay in place when strong waves hit.
What is the global impact of tides? Explain.
People who live near the coast are at risks of hurricanes and strong storm damages. But now coastal communities are at growing risk from the effects of climate change and the accelerated rise in sea levels. Scientists' measurements show that sea levels around the globe have risen by about 1.3 inches per decade since 1990. Measurements from satellites as well as tide gauges indicate that this rise has accelerated over the past 20 years, up from the previous rate of 0.7 inch per decade in the last half of the twentieth century.
What are some of the challenges on coastal areas because of tides?
Since coastal zones are continually changing because of the dynamic interaction between the oceans and the land, waves and winds along the coast are both eroding rock and depositing sediment on a continuous basis, and rates of erosion and deposition vary considerably from day to day along such zones. The energy reaching the coast can become high during storms, and such high energies make coastal zones areas of high vulnerability to natural hazards.
Explain how electricity can be generated by currents and tidal power.
Tidal energy is produced through the use of tidal energy generators. These large underwater turbines are placed in areas with high tidal movements, and are designed to capture the kinetic motion of the ebbing and surging of ocean tides in order to produce electricity. Tidal power has great potential for future power and electricity generation because of the massive size of the oceans.
People who live near the coast are at risks of hurricanes and strong storm damages. But now coastal communities are at growing risk from the effects of climate change and the accelerated rise in sea levels. Scientists' measurements show that sea levels around the globe have risen by about 1.3 inches per decade since 1990. Measurements from satellites as well as tide gauges indicate that this rise has accelerated over the past 20 years, up from the previous rate of 0.7 inch per decade in the last half of the twentieth century.
What are some of the challenges on coastal areas because of tides?
Since coastal zones are continually changing because of the dynamic interaction between the oceans and the land, waves and winds along the coast are both eroding rock and depositing sediment on a continuous basis, and rates of erosion and deposition vary considerably from day to day along such zones. The energy reaching the coast can become high during storms, and such high energies make coastal zones areas of high vulnerability to natural hazards.
Explain how electricity can be generated by currents and tidal power.
Tidal energy is produced through the use of tidal energy generators. These large underwater turbines are placed in areas with high tidal movements, and are designed to capture the kinetic motion of the ebbing and surging of ocean tides in order to produce electricity. Tidal power has great potential for future power and electricity generation because of the massive size of the oceans.