What are the causes and effects of El Niño phenomenon?

Weaker winds means the ocean gets warmer and this process happens interchangeably and consecutively thus making the El Niño bigger and bigger. In other words, El Niño is caused by the weakening of the trade winds which results in pushing of warm surface water to the west and less cold water to the east.

What is the phenomenon of El Niño?

El Niño is a climate pattern that describes the unusual warming of surface waters in the eastern tropical Pacific Ocean. El Nino is the “warm phase” of a larger phenomenon called the El Nino-Southern Oscillation (ENSO).

What causes an El Niño phenomenon quizlet?

is an abnormal weather pattern that is caused by the warming of the Pacific Ocean near the equator, off the coast of South America.

What causes El Niño in South Africa?

Oxfam South Africa conducted research into the effects of the latest El Nino in South Africa. El Nino is a change in weather patterns caused by the warming of the Pacific Ocean near the equator, off the coast of South America. El Nino usually means less rainfall in most countries, but high rainfall in some countries.

What causes El Niño in the Pacific?

El Niño events happen as warm trade winds heat up the surface waters of the tropical Pacific Ocean.

Which of these is commonly an effect of El Niño?

El Niño causes the Pacific jet stream to move south and spread further east. During winter, this leads to wetter conditions than usual in the Southern U.S. and warmer and drier conditions in the North. El Niño also has a strong effect on marine life off the Pacific coast.

What are the effects of El Niño quizlet?

The increase or decrease of what makes it warmer or colder. El Nino Southern Oscillation, trade winds weaken & warm surface water moves toward South America. Diminished fisheries off South America, drought in western Pacific, increased precipitation in southwestern North America, fewer Atlantic hurricanes.

Where does El Niño occur?

El Niño is a weather pattern that occurs in the Pacific Ocean. During this time, unusual winds cause warm surface water from the equator to move east, toward Central and South America.

Why does El Niño usually cause increased global temperatures?

Although El Niño’s strongest impacts are felt around the equatorial Pacific, they can affect weather around the world by influencing high and low pressure systems, winds and precipitation. And as the warmer ocean waters release excess energy (heat) into the atmosphere, global temperatures rise.

How does the El Niño phenomenon affect the hydrosphere?

El Nino affects the hydrosphere because the water gets to be a lot warmer in the East Pacific and a lot colder in the West Pacific. The currents are also affected. La Nina affects the hydrosphere because the water is very cold in the east Pacific and in the middle of the Pacific, too.

Is El Niño wet or dry?

Weather typically differs markedly from north to south during an El Niño event (wet in south, dry in north) but also usually varies greatly within one region from event to event.

What are causes of sea levels rising?

What’s causing sea level to rise? Global warming is causing global mean sea level to rise in two ways. First, glaciers and ice sheets worldwide are melting and adding water to the ocean. Second, the volume of the ocean is expanding as the water warms.

What two things are changing in the Pacific Ocean to cause an El Niño event?

Weak winds allow warm surface waters to build up in the eastern Pacific. Sometimes, but not always, the atmosphere responds to this warming with increased rising air motion and above-average rainfall in the eastern Pacific. This coordinated change in both ocean temperatures and the atmosphere begins an El Niño event.

What are some of the potential impacts of El Niño on the US?

Generally speaking El Niño brings: cooler and wetter weather to the southern United States. warmer weather to western Canada and southern Alaska. drier weather to the Pacific Northwest.

What is the main cause of the rise in sea level quizlet?

increases volume of water in the oceans and causes the sea levels to rise. increased global temperature causes oceans to get warmer and expand.

What cities will be underwater by 2050?

There are numerous heavily populated sinking cities like Mumbai, Shanghai, NYC, and Miami at risk. With a population of 10 million, Jakarta is considered by some to be “the fastest-sinking city in the world” and is projected to be “entirely underwater by 2050”.

Why is Kiribati under threat?

Kiribati is predicted to be one of the countries most impacted by climate change, in part to its vulnerability to sea-level rise. It is less than 2 meters above sea level. It is experiencing flooding, contamination of water sources, and food scaricty.

What is the primary cause of the overall rising trend in co2 in the atmosphere?

Answer: The increase in CO2 is caused by burning of fossil fuels. The evidence is absolutely clear on this one. Humans have burned ever-increasing amounts of fossil fuels since the industrial revolution. Over this same time scale, CO2 concentrations in the atmosphere have risen similarly.

Which statement best describes how conditions in the equatorial Pacific Ocean change during La Niña?

Which statement best describes how conditions in the equatorial Pacific Ocean change during La Niña? The surface currents become unusually cool. Which statement best describes how atmospheric circulation cells affect climate? They transfer heat energy from lower to higher latitudes.

What are the effects of sea level rise?

The major physical impacts of a rise in sea level include erosion of beaches, inundation of deltas as well as flooding and loss of many marshes and wetlands. Increased salinity will likely become a problem in coastal aquifers and estuarine systems as a result of saltwater intrusion.

What causes the annual up and down fluctuation in CO2 in the atmosphere?

The amount of CO2 found in the atmosphere varies over the course of a year. Much of this variation happens because of the role of plants in the carbon cycle. Plants use CO2 from the atmosphere, along with sunlight and water, to make food and other substances that they need to grow.

What are the two main reasons why the concentration of methane in the atmosphere is increasing?

“The specific activities that we linked to the biggest increases were raising livestock, coal mining, waste disposal in landfills, and gas and oil production.” Across the study years, wetlands contributed 30 percent of global methane emissions, with oil, gas, and coal activities accounting for 20 percent.