Extreme Climate Groups Project : Climate Group Project

12) Deserts typically occur in a band around 30 degrees north and south latitude because

Recent climate modeling results indicate that "extreme" weather events may become more common. Rising average temperatures produce a more variable climate system. Carbon dioxide from cars, industries and power plants trap heat near the earth 's surface. More heat means more energy. Adding more energy to the atmosphere creates the potential for more extremes. Climatologists say extreme weather events will become more common as our climate heats up. The gradual increase in the overall temperature of the earth 's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants is known as Global Warming. The greenhouse effect is when the Earth 's atmosphere becomes thick with gases, such as Carbon dioxide, and substances which trap the sun 's radiation, making the Earth warmer. The extreme weather is leading to climate changes which are resulting in seasonal mismatching.

Desert’s impact humans by Something called Desertification, Desertification is when fertile land becomes Desert. “ ... Desertification directly affects 1.2 billion people” (Doc 3). This shows that Desert’s affect people badly. Desert’s are dangerous as they can kill plants and animals. “ But even small changes in temperature or precipitation could drastically impact plants and animals living in the Desert.” (Internet). This shows that small changes in the Desert can affect a lot of living things. To recapitulate, Desert’s can be discussed by their impacts on humans.

Climate and appearances are how we can describe the desert. The deserts climate and appearances are specific to the desert. The desert has many distinct characteristics. It is dry, sandy and has many rocks lying around. The climate is as different as night and day. During the day it

There are roughly 8.7 million known species of plants and animals distributed all over the world. However, there are fewer plant and animal species found in hot desert areas due to the climate and landform. Living under the arid evnironment is typically difficult because of the extreme climate, the fluctuation of temperature between night and day is enormous, and sandstorms occur frequently. As well as this, there are very few nutritional substances for survival. However, the biggest challenge for living things in the hot desert is most likely the dry weather and lack of rain. The annual rainfall is below 25 mm in the Sahara Desert, the world’s biggest desert, compared with the Amazon rainforest which has an average precipitation of 1250 to

These freshwater lakes covered about 10% of the Sahara and were three times bigger than the Great Lakes. Scientists wanted to find the answer as to what caused the Sahara to go from grassland to desert. They discovered that the wobble of the earth’s orbit every 20 thousand years was the cause of the changing environment which moved the rain belt. Scientists used ocean sediment to determine that the change of landscape can happen within one or two centuries. I found this fascinating that the earth’s slight wobble could affect the landscape that much. This made me wonder what other changes might happen due to the Earth’s wobble. If the Sahara’s climate changed this much could other locations have similar changes in the next thousands of years. Even though the landscape change in the Sahara only happens every 20 thousands of years can scientist predict approximately when the next change will occur? Also, because scientists discovered that the change of landscapes can happen within a few hundred is it possible that some future generations may witness that changes of the Sahara landscape. It is very shocking to think about the fact that in the next few thousand years the biggest desert in the world might be a grassland. By observing how the Earth changes over time it can predict future changes in the landscape and

The aridity maps was prepared by using De Martonne’s Aridity Index, Thornthwaite’s Precipitation Effectiveness Index, Thornthwaite’s Moisture Index, UNESCO Aridity Index and Erinc Aridity Index. These indices showed that most of the southern parts of the country lie between arid to hyper arid where as northern parts lie between semi arid to very humid zone (Fig-3). Analysis shows the climate of northern parts is more variable as compare to southern parts. The reason in the variability of the climate in the northern parts is that this region received rainfall in summer due to monsoon systems (July to September) and in winter due to western disturbances (December to March). Southern parts of the country receive most

Is the main factor that determines Arid climate. An area must receive less than 10 inches in a year to be Arid. However. Some don’t receive any rain.

as the Caribbean and Central America, where the average temperature is 80°F (27°C), and the yearly rainfall is

The country that I chose to research was Madagascar. Madagascar is an Island country located in the Indian Ocean in South Africa. It is mostly known for its trail of large mountains. It's twice the size as Britain, coming in as the fourth largest island in the world. Mountains, though it is the main attraction, isn't the only thing Madagascar is made up of. It has forests, crystal lakes, massive caverns, and savannah grasslands covering the west part of the island. The south region is made up of sandy deserts. These parts of the island are dry, hot, and tropical while the mountains have a lower temperature from the rest. During the “wet season,” which is from December to march, is when

I learned new facts about climate change after I attend the climate march during April 29, 2017. The

Climate: Africa contains both the world’s largest desert (the Sahara) and the world 's longest river (the Nile).Temperatures are highest in desert areas, particularly the Sahara. They are cooler across the south and in mountainous areas and plateau highlands. Rainfall varies dramatically across Africa.Changing weather patterns, however patterns of weather are changing, both locally and across the continent. The Sahara is the world 's largest low-latitude hot desert. The area is located in the horse latitudes under the subtropical ridge, a significant belt of semi-permanent subtropical, warm-core high pressure where the air from the upper levels of the troposphere tends to sink towards the ground. This steady descending airflow causes a warming and a drying effect in the upper troposphere. The sinking air prevents evaporating water from rising and, therefore, prevents the adiabatic cooling, which makes cloud formation extremely difficult to nearly impossible.

“Natural disasters have killed more than 600,000 people and left behind trillions of dollars in damages in the last two decades, the United Nations said Monday.” (Chan) Extreme weather has caused millions of casualties and extreme damages over the years, but lately there has been an increase in severe weather events. This is causing problems in the US, with the amount of tornadoes rising in tornado alley “Tennessee experienced a 67 percent increase in tornado activity in 1983-2013 compared to the 1954-1983 time period. Oklahoma experienced a nearly 35 percent decrease in tornadoes in 1983-2013 compared to 1954-1983.”

Due to time constraints, the recorded RH of the site was done at 17:06 EST while the climate data was observed at 19:00 EST, this may lead to some differences when comparing data. However, using the information provided it suggests that the microclimate for the proposed site in may be less humid in August than PHL.

Varies from tropical to temperate, depending the elevation. There are mainly two seasons, the rainy from July to November and the dry one the rest of the year.