Which two factors cause upwelling in the ocean?
Terms in this set (3)
- Which two factors cause upwelling? prevailing winds and the Coriolis effect.
- Which of the following varies daily? shoreline.
- A spring tide occurs during which of the following conditions? The earth is aligned with the moon and the sun.
What angle must wind hit the coast for upwelling to occur?
What angle must wind hit the coast for upwelling to occur? Explain. For coastal upwelling to occur, the wind must be parallel to the coast because water is deflected to the left of the wind in the southern hemisphere, and the right of the wind in the northern hemisphere. 9.
What is the major ion in seawater quizlet?
The seven most abundant ions in seawater comprise over 99% of the total dissolved material, they are: Chloride, Sodium, Sulfate, Magnesium, Calcium, Potassium, and Bicarbonate. A solution is an acid when: it has an excess of hydrogen ions.
What is upwelling and how is it caused?
Winds blowing across the ocean surface push water away. Water then rises up from beneath the surface to replace the water that was pushed away. This process is known as “upwelling.” Upwelling occurs in the open ocean and along coastlines.
What causes upwelling and downwelling?
Upwelling and downwelling also occur along coasts, when winds move water towards or away from the coastline. Surface water moving away from land leads to upwelling, while downwelling occurs when surface water moves towards the land.
How does upwelling occur?
Winds blowing across the ocean surface push water away. Water then rises up from beneath the surface to replace the water that was pushed away. This process is known as “upwelling.” Upwelling occurs in the open ocean and along coastlines.
What direction of wind causes upwelling?
Upwelling is a phenomenon that brings cold, nutrient-rich deep water to the surface. In the Northern Hemisphere, upwelling occurs on west coasts when winds are blowing north to south. Ekman transport and the Coriolis Effect make the coastal waters move, on average, 90 degrees to the wind.
What are two processes that add salt from seawater?
Salt in the ocean comes from two sources: runoff from the land and openings in the seafloor. Rocks on land are the major source of salts dissolved in seawater.
Which process causes surface seawater to increase in density quizlet?
An increase in salinity increases seawater density. A decrease in temperature increases seawater density. In distillation, saltwater is highly pressurized to drive water molecules through a membrane to remove salts.
Does El Nino cause upwelling?
El Niño also has a strong effect on marine life off the Pacific coast. During normal conditions, upwelling brings water from the depths to the surface; this water is cold and nutrient rich. During El Niño, upwelling weakens or stops altogether.
How do upwellings form?
Conditions are optimal for upwelling along the coast when winds blow along the shore. Winds blowing across the ocean surface push water away. Water then rises up from beneath the surface to replace the water that was pushed away. This process is known as “upwelling.”
What causes upwelling apex?
process in which cold, nutrient-rich water from the bottom of an ocean basin or lake is brought to the surface due to atmospheric effects such as the Coriolis force or wind.
What causes upwelling answers?
Conditions are optimal for upwelling along the coast when winds blow along the shore. Winds blowing across the ocean surface push water away. Water then rises up from beneath the surface to replace the water that was pushed away. This process is known as “upwelling.”
What are 2 main methods of desalination?
Two distillation technologies are used primarily around the world for desalination: thermal distillation and membrane distillation. Thermal distillation technologies are widely used in the Middle East, primarily because the region's petroleum reserves keep energy costs low.
What are the factors affecting the salinity of the sea water?
The salinity of water in the surface layer of oceans depend mainly on evaporation and precipitation. Surface salinity is greatly influenced in coastal regions by the freshwater flow from rivers, and in polar regions by the processes of freezing and thawing of ice.
Which of the following processes can cause seawater to lower its salinity?
Evaporation of ocean water and formation of sea ice both increase the salinity of the ocean. However these "salinity raising" factors are continually counterbalanced by processes that decrease salinity such as the continuous input of fresh water from rivers, precipitation of rain and snow, and melting of ice.
Which of the following processes can cause surface seawater to increase in density?
The main processes that increase seawater density are cooling, evaporation, and ice formation. Evaporation and ice formation cause an increase in density by removing fresh water, leaving the remaining seawater with greater salinity (see section 5.3).
Does La Niña cause upwelling?
During La Niña events, trade winds are even stronger than usual, pushing more warm water toward Asia. Off the west coast of the Americas, upwelling increases, bringing cold, nutrient-rich water to the surface.
Does La Niña increase upwelling?
During a La Niña the trade winds are unusually strong, leading to increased upwelling and transport of deep, cold water to the surface (Figure 9.6.
What is upwelling quizlet?
Upwelling. The upward motion of water. brings cold, nutrient rich water to surface.
What occurs during upwelling?
Upwelling occurs when winds push surface water away from the shore and deeper water rises to fill the gap. During upwelling, wind-displaced surface waters are replaced by cold, nutrient-rich water that wells up from below.
Does El Niño cause upwelling?
El Niño also has a strong effect on marine life off the Pacific coast. During normal conditions, upwelling brings water from the depths to the surface; this water is cold and nutrient rich. During El Niño, upwelling weakens or stops altogether.
What two factors cause differences in ocean water density?
There are two main factors that make ocean water more or less dense: temperature and salinity. Cold, salty water is denser than warm, fresher water and will sink below the less dense layer. Density is defined as the measure of a material's mass (e.g. grams) divided by its volume (e.g. milliliters).
What causes water desalination?
Desalination processes are usually driven by either thermal (in the case of distillation) or mechanical (e.g. in the case of reverse osmosis) energy types.
What two energy sources are used in desalination?
In their review of progress in the use of renewable energy sources to power water desalination processes, Ali et al. (38) noted that the most commonly used technologies are solar and wind power.
What are 2 factors that affect salinity?
Evaporation of ocean water and formation of sea ice both increase the salinity of the ocean. However these "salinity raising" factors are continually counterbalanced by processes that decrease salinity such as the continuous input of fresh water from rivers, precipitation of rain and snow, and melting of ice.
What 2 factors affect the density of seawater?
There are two main factors that make ocean water more or less dense: temperature and salinity. Cold, salty water is denser than warm, fresher water and will sink below the less dense layer. Density is defined as the measure of a material's mass (e.g. grams) divided by its volume (e.g. milliliters).
What are the 2 main factors that affect the density of sea water?
The density of seawater depends on temperature and salinity. Higher temperatures decrease the density of seawater, while higher salinity increases the density of seawater. The following figure shows how density is affected by temperature and salinity.
What are two factors that control the salinity of seawater?
Evaporation of ocean water and formation of sea ice both increase the salinity of the ocean. However these "salinity raising" factors are continually counterbalanced by processes that decrease salinity such as the continuous input of fresh water from rivers, precipitation of rain and snow, and melting of ice.
What are 2 effects of El Niño?
Severe drought and associated food insecurity, flooding, rains, and temperature rises due to El Niño are causing a wide range of health problems, including disease outbreaks, malnutrition, heat stress and respiratory diseases.