Tuesday, February 23, 2016

3.1 Warm enough for ya?


Image result for el nino

El Nino's peak has passed but it's effects are going to be long lasting and world wide.  Read and think:
1) What is El Nino?  What does it do to the world regions?
2) What economic impacts will be found in our region? Canada?
3) What impacts will this have on the world?  How is this a global issue?
4) What's worse El Nino or La Nina?

http://www.cbc.ca/news/canada/ottawa/el-nino-peak-1.3190550?__vfz=tc%3D69wA-Ma227P

12 comments:

  1. MARK THIS ONE: El Nino is an irregularly occurring series of climatic changes affecting the equatorial Pacific region and beyond every three to seven years, characterized by the appearance of unusually warm, nutrient-poor water off northern Peru and Ecuador, typically in late December. The balance between wind, ocean currents, oceanic and atmospheric temperature and biosphere breaks down, resulting in a severe impact on global weather. When this warm water builds up in the western Pacific-Ocean, nutrient-rich cold waters are forced to rise up from the deeper ocean just off of the west coast of South America. This colder nutrient-rich water fosters the growth of the fish population. Warm, nutrient-poor water is not pushed westward and comes to occupy the entire tropical Pacific Ocean. The cold water is not forced to the surface and the coastal waters of Peru and Ecuador are unusually warm. This warmer water has a devastating impact on their fishing crops which rely on cool waters to thrive. The region also experiences an extremely higher than average amounts of rainfall. Its impact is also felt in weather around the world. A severe El Niño will enhance the jet stream over the western Pacific and shift it eastward, leading to stronger winter storms over California and southern United States, with accompanying floods and landslides. El Niño may also cause severe droughts over Australia, Indonesia, and parts of southern Asia. El Niño is known to lower the probability of hurricanes in the Atlantic, it increases the chances of cyclones and typhoons in the Pacific. El Niño can affect the economy of different countries. It can constrain the supply of rain-driven agricultural commodities; reduce agricultural output, construction, create food-price and generalized inflation; and may trigger social unrest in commodity-dependent poor countries that primarily rely on imported food. These impacts listed can been seen in our region and across Canada. For example, most El Niño winters are mild over western Canada and parts of the northern United States, and wet over the southern United States from Texas to Florida. The twists and turns in the ongoing dialogue between ocean and atmosphere in the Pacific can have a ripple effect on climatic conditions in far flung regions of the globe. This worldwide message is conveyed by shifts in tropical rainfall, which affect wind patterns over much of the globe. As previously stated, El Niño includes warmer-than-average temperatures over western and central Canada, and over the western and northern United States. Wetter-than-average conditions are likely over portions of the U.S. Gulf Coast and Florida, while drier-than-average conditions can be expected in the Ohio Valley and the Pacific Northwest. On the other hand, when La Nina strikes, the sea-surface temperature across the equatorial Eastern Central Pacific Ocean lowers. La Nina can last between nine months to two years. According to the National Oceanic Atmospheric Administration, the result of a La Nina episode is drier than normal conditions in the Southwest in late summer through winter, with dry conditions in the Central Plains in the fall and in the Southeast in the winter. These conditions are bad on crops. La Nina episodes represent periods of below-average sea surface temperatures across the east-central Equatorial Pacific. El Nino and La Nina are both destructive forces. While they are opposites in how they affect rain, drought and flooding conditions, one isn't really worse than the other.
    http://www.isciencetimes.com/articles/5358/20130607/what-la-nina-natural-phenomenon-worse-el.htm
    http://www.cam.ac.uk/research/news/study-reveals-economic-impact-of-el-nino#sthash.2II4dVzV.dpuf
    http://www.pmel.noaa.gov/tao/elnino/impacts.html#part5c
    http://earthobservatory.nasa.gov/Features/ElNino/

    ReplyDelete
    Replies
    1. I agree with Rianne, that neither El Nino or La Nina is worse globally. El Nino does have a greater effect on North American countries. El Nina has a great effect on south-east and east-central America.

      http://oceanservice.noaa.gov/facts/ninonina.html

      Delete
    2. I agree with Rianne, that neither El Nino or La Nina is worse globally. El Nino does have a greater effect on North American countries. El Nina has a great effect on south-east and east-central America.

      http://oceanservice.noaa.gov/facts/ninonina.html

      Delete
  2. Please mark this:
    El Niño is an uncommon warm phase that is caused by warmer ocean temperatures between (approximately) the International Date Line and 120 degrees W. This comes with high air pressure in the Western Pacific and low air pressure in the eastern Pacific. La Niña is the cool phase of El Niño Southern Oscillation; this is when the sea surface temperature is lower than normal and it causes high air pressure in the east and low air pressure in the west. Both of these climate irregularities have effects on the environment however, one does not trump the other in the effects; both causes different temperatures and precipitation. The El Niño that we have been experiencing this winter has made our climate warmer. This means less ice cover over the great lakes and Georgian Bay, uncharacteristically high temperatures warm spells, and today I'm questioning if I really live in Canada. Our snow banks have also been a lot smaller this year and it has been because of less snow fall. In a study done in America by NOAA it shows that the Great Lake region has seen about 40% less precipitation than normal. Less snow has made a lot of people happy-- less shovelling is a win in my mind. However, this affects our economy in Canada. Outdoor ice rinks have been hard to maintain, ski trails/hills and tubing routes have been hard to maintain. Most ski resorts didn't open until after christmas break when in a normal season they would open early to mid December. That whole industry took a hit in the early winter and since then it's been equally as hard because of the thaws. This is not so much for skiers either; the snow conditions have been very icy because of a thaw and then a freeze. This El Niño changes both the temperature and the precipitation patterns over the globe and not completely warmer and drier around the globe. Many of the Southern States like Texas and Florida have been 50-70% wetter and 33-40% cooler over the winter. This is 100% a world issue. Different weather patterns effect the economy hugely. Cooler weather in Florida effects the oranges that grow, and warmer weather in Ontario is making skiing difficult. Everywhere in the world will have some effected industry and that becomes a world economy issue. Personally, I've enjoyed some of these warmer days but they do not fit the trend for Canadian winters. My family takes a week after Christmas to spend at our cottage and ice fish, skate, sled, ski and do winter stuff. This year the lake wasn't frozen, the ground wasn't frozen and it didn't snow until December 28th. Like I said in a previous comment, this is not the first time that there has been a warm winter and it won't be the last. I'm going to enjoy the un-Canadian like days and hopefully next winter can balance the economy from some of the loses this year. http://www.bloomberg.com/news/articles/2015-11-19/how-el-nino-will-affect-ski-season-in-america
    https://en.wikipedia.org/wiki/El_Niño

    ReplyDelete
  3. Mark please:
    El Niño is basically the warmer than normal water across the equator and the Pacific Ocean but mainly across the central-eastern pacific. It causes major climate changes around the world. It begins around late December until mid-February so its effects are slowly declining for this year. La Niña is the opposite of El Niño. It's the cooling phase. It's the build up of cool water in the equatorial eastern Pacific and the atmosphere cools in response to the cold ocean surface where less water evaporates. As a result, the weather is drier. This is a global issue because it has impacts on weather around the world such as, droughts in California, heat waves in Australia, reduced food supply in Peru, and coffee production cuts in Uganda. These are just a few examples of what gets affected by El Niño. In relation to economy issues, because of El Niño’s affect on the weather and atmospheric pressure/global atmospheric circulation, the droughts it creates and the floods it creates, along with the impact on fishing industries and even damaging crops affects the economy everywhere in the world, including Canada, because we buy a lot of food from other countries so if those countries aren’t doing so well because of the weather changes then what are the other countries who import from them going to eat? And back to the damage of floods and droughts turning into bush fires... there is always a lot of damage and someone has to pay for it. Because El Niño and La Niña are both destructive, neither is worse than the other. But depending where you are located, one will affect you more than the other. For example, because El Niño has reached its peak, the tropical storms are huge. Currently in Ecuador there is water up to people's mid thigh. So while we're in Canada enjoying our warm winter, the Southern regions are drowning due to the sea level rises.
    Sources:
    http://www.livescience.com/3650-el-nino.html
    http://earthobservatory.nasa.gov/Features/WorldOfChange/enso.php
    https://climate.ncsu.edu/climate/patterns/ENSO.html

    ReplyDelete
    Replies
    1. I would have to agree with you. I also believe that El Niño and La Niña are both destructive and that neither is worse than the other; their affect greatly depends on where you live. Since the weather and climate industries account for 10 percent of the GDP, changes have a drastic affect to our economy. I also believe that the function of the companies has effect on whether the company has economic gains or losses from El Niño and La Niña. For example, department store sales might go up to purchase clothing and other household supplies during the warm winter, but sales of snow equipment such as snowmobiles would go down. Just like most other climate issues, El Niño and La Niña affects our economy and our way of living in Canada.

      Sources:
      http://www.spacedaily.com/news/pacific-02g.html

      Delete
    2. I completely agree, for some people in certain regions they will be affected more by an El Nino or La Nina. This will then cause them to believe that one is much worse when both are just as bad. They both have many upsides and downsides it simply depends on where you are living around the world.

      Delete
  4. I agree with the posts above stating that El Niño and La Niña are equally terrible and destructive. The fact of the matter is that the effects you see depend on your location. Brittany's point regarding GDP is certainly something to note. "According to NOAA analysts, nearly 25% of the US GDP is directly or indirectly affected by weather and climate.", so it can be estimated that Canada is similar due to our similar consumer habits and location.

    Due to the fact above, consumer habits depend on the weather greatly. Some goods' sales may increase through the winter, however some will drop as well. Should an El Niño effect carry into spring continues into spring,the sale of seasonal goods often drops.

    http://www.financialsense.com/contributors/evelyn-browning-garris/economic-consequences-el-nino-north-america

    ReplyDelete
  5. Mark this one:
    According to this article, El Nino is the natural warming of the central tropic pacific region, also affecting the atmosphere and weather patterns worldwide. This year, the warm temperatures of November and December have been linked to El Nino. El Nino affects Canadian economy because we are not having winter tourists that may come and visit our country to see it's winter. Also, this could affect future environmental problems over the spring and summer, meaning some businesses will struggle through the spring and summer. Unfortunately, this issue is also a global issue because it happens all around the world. America and Canada are affected, but so are any other countries along the Pacific Ocean. Many of these countries will also suffer some economical change because of El Nino. On the other hand, La Nina is become more popular. In the United States La Nina will mean droughts within the great plains and southwest while more rain in the norhwest. La Nina also calls for warmer winters in the U.S. Southeast and cooler winters in the U.S. Northwest. El Nino is really bad for the environment, but La Nina is just as bad. Both result in severe changes in weather patterns, which may also affect the economy.
    http://www.theweathernetwork.com/news/articles/winter-hasnt-been-cancelled-but-will-be-milder-for-most/60506/?utm_source=hootsuite

    ReplyDelete
  6. Mark this one:
    The El Nino is a natural increase of temperature in the the central tropical Pacific which then changes in the atmosphere. An El Nino occurs every five years and alters weather patterns across the world. This causes positive and sometimes negative effects of rainfall, wind patterns and sea temperatures. For Western Canada and Northern Western USA the temperatures would become more mild, for the Gulf Coast, the precipitation would be much high than normal and for pacific northwest and Ohio the weather would be more drier than normal. Overall, the effects of an El Nino are sometimes erratic and unpredictable. "Despite the advanced technological feats of human beings like duplicate sheep, genetically engineered soya beans etc., we still depend on Nature and can easily sucumb to it's savage brutality too."(http://www.globalissues.org/article/186/el-nino-and-climate-change) El Nino and La Nina affect the water systems leading to a change in precipitation patterns which may cause a negative impact on many economic factors around the world. For Canadian Fishermen, the cold water from the deep ocean currents that provides nutrients to the fish slows, causes the ocean water temperatures to increase and the fish to swim deeper into the ocean. This makes it much more difficult on fishermen to get the products they need to keep that part of the economy going. Farming and agriculture are a huge source of food and livelihood for majority of the world. Hot, dry summers in Australia cause and increase in bush fires which leads to reduced wheat exports and the global wheat price to raise. For India, their agricultural sector is largely affected causing an increase in domestic food prices. However, in Indonesia, they rely on hydro and with dry weather (no rain or river current) they are unable to make as much nickel which is used for strengthening steel. El Nino is a global issue because it directly affects and changed the climate around the world, not just in Canada. All unpredictable climate changes may have a major effect on the world and climate change in the future. For some regions, the weather changes during an El Nino however, for some places it stayed normal. Although the weather may not have changed in one region of the world, they will soon begin to be impacted by it as well. With the El Nino messing up many economic factors, everyone’s imports and exports and money within the country will change. El Nino and La Nina are ongoing environmental and economic issue, it occurs every five years meaning it will continue again. There isn’t much we can do about it expect always be prepared for it as meteorologists are not fully capable of predicting them. This is why their continued study globally is extremely important.

    http://www.environmentalscience.org/el-nino-la-nina-impact-environment
    http://www.cam.ac.uk/research/news/study-reveals-economic-impact-of-el-nino
    http://www.globalissues.org/article/186/el-nino-and-climate-change

    ReplyDelete
  7. Mark this one please:
    El Nino is a phenomenon in the Pacific Ocean that has global impact on weather patterns, resulting from variations in ocean temperatures. Basically it is the warming in the equatorial Pacific. For example, in Peru, warm air rises because of this and it causes it to rain in the desert, which is unusual. Some even believe that the ice storm of 1998 in Canada was caused by El Nino. In Collingwood, El Nino causes more snow, which has a positive economic impact towards the ski companies. It has a bad economic impact towards the council that pays the snowplow companies because more snow is produced making it more expensive to plow. Although El Nino causes milder temperatures which people tend to like, it also produces a lot more storms which can affect any area around the globe. This would especially have a huge impact on 3rd world countries that cannot withstand huge storms. La Nina is a cooling of the water in the equatorial Pacific that occurs at irregular intervals. El Nino is worse because the heating of the water gives more energy into the atmosphere, which fuels the snow, rain, and ice storms.

    ReplyDelete