1: Describe the relationship between the UV Index (the colored bar in Figure 1) and latitude (y-axis).
The UV rays become less intense as you travel North or South of the equator. So, the further away from the midrange of the Earth’s latitude the less intense the UV rays.
2. How do you explain the relationship between the UV Index and latitude? (In other words, why does UV intensity change with latitude?)
More sunlight reaches the equator of the planet causing a correlation between UV intensity and latitude.
3. Find your approximate location on the map. What is the primary UV Index value of your state on this day in September?
I live in the Midwest, more specially Minnesota, so on the UV Index I would be in about the 5 or 6 range.
4. Look at the regions that receive the most-intense UV (light pink). Site a specific piece of evidence from the map that a factor other than latitude was contributing to UV intensity on this day.
Altitude increases UV radiation for example one of the pink areas is on top of the Anders Mountains in South American.
5. In the film, Dr. Jablonski explains that melanin, located in the top layer of human skin, absorbs UV radiation, protecting cells from the damaging effects of UV. Genetics determines the type of melanin (i.e., brown/black eumelanin or red/brown pheomelanin) and the amount of melanin present in an individual’s cells. Based on this information, write a hypothesis for where in the world you would expect to find human populations with
a much greater annual temperature range than City B. The most likely explanation for this fact is
Meaning that at latitudinal points closer to the poles there is less bio-diversification, and when approaching close to the equator and tropics the bio-diversification increases. The first theory on why this occurs is that in the tropics the species evolutionary clock ticks faster, increasing the chance of genetic mutations. Another theory is that in the area of the tropics the species there are more finicky because of the consistent temperature creating a low thermal tolerance creating insuperable barriers. Another theory is that the age of the tropics, rainforests, are old in comparison to the barren ice covered lands of the polar regions, creating an ideal place for life to
Vocabulary: direct sunlight, Earth’s axis, equator, indirect sunlight, northern hemisphere, North Pole, season, solstice, southern hemisphere, South Pole, summer solstice, winter solstice
The first is the maritime vs. continental relationships Brownsville is near a few water sources like the Rio Grande River and the Gulf of Mexico. Land-sea breezes wind system the air flows from the sea toward the land, so high to a low pressure zone. It can have an impact on the temperature and airflow direction. The second is the air mass circulation and Brownsville is located near the tropic of Cancer. Brownsville latitude is 25.9303° N, 97.4844° W, so it’s within the Subtropical high pressure system. This makes it for hot and dry weather. The next component is the latitude, so it affects the climate and the range of sun insolation Brownsville receives because of its latitude. Then the seasonality is also an important variable in the distribution of climate for two reason related to the sun angle. The number of hours of sunlight in a day Brownsville receives. The second is insolation and temperature can be important between the summer and winter seasons.
25 The climate zones lying between 66.5° and 90° north and south latitude are called _________________
1. Is the temperature contrast between the equator and the Arctic region greatest in the
According to Hess, “The angle at which solar rays hit Earth’s surface varies with latitude. The higher the angle, the more concentrated the energy and therefore the more effective the heating” (2011, p. 80). St. Louis, Missouri is located at 38° 39' N, 90°W, which puts it north of the Tropic of Cancer. The angle of incidence is between 10 and 40 degrees, which causes cooler temperatures since the insolation is spread out over a large area.
e following image (Figure 1) represents a map of the world on which the UV-light Index has been superimposed. e latitudes are shown on the left (latitude helps de ne a location on Earth, speci cally how far north or south of the equator a site is).
The other cause is the degree of pigmentation of the skin. Individuals with the highest risk are people who live in sunny places and people who have fair skin. The areas of the body that are the most exposed to sunlight are the areas of the face and head. Here, cancer is more likely to develop. (Bair, 1991, P. 368).
There is significant variance in day to day temperature, especially during the winters. Moreover, the temperatures at the night are substantially different from the day due to proximity to water.
Even people who don't spend hours at a time in intense sunlight, are exposed to UV radiation, including on overcast days. This is difficult to believe given that we don't
The stratosphere absorbs the UV radiations. The troposphere is the lowest part of Earth’s atmosphere.
The Troposphere is the lowest layer from Earth of Earth’s atmosphere. In the troposphere is where all weather takes place. The second layer is the Stratosphere which has warmer layers than most of the atmosphere. The Mesosphere is the third layer of Earth’s atmosphere. In this layer temperature decreases with altitude. It also includes the coldest places on Earth. The next layer is the Ozone. In the Ozone layer gases and chemicals protect us from harmful Uv radiation from the sun. The last and final layer of the atmosphere is the Thermosphere. In the Thermosphere Uv radiation is captured by the sun and warms up this layer. This is the warmest layer of all of Earth’s atmosphere. Also in this layer radio waves are refracted due to the solar radiation interfering with
The higher your altitude, the less protective atmosphere above you to protect against UV light. This means you get a higher rate of exposure than someone living at sea level.
The effect of the potential increase in urban albedo on IRF is also dependent on the urban areas can be enhanced. In Figure 2 we reported both the responsiveness (indicated by the color bar) and the area of the cities (see also table 1) of the 125 most populous cities.