Exam 3: Air Temperature
Describe the sources,sinks and effects of atmospheric carbon dioxide and its role in the greenhouse effect.
Atmospheric carbon dioxide (CO2) is primarily sourced from human activities such as burning fossil fuels, deforestation, and industrial processes. Natural sources of CO2 include volcanic eruptions, respiration by living organisms, and the decay of organic matter.
Sinks for atmospheric CO2 include the oceans, where CO2 is absorbed and stored in the form of carbonic acid, and terrestrial vegetation, which takes in CO2 during photosynthesis. Additionally, CO2 is removed from the atmosphere through chemical weathering of rocks.
The greenhouse effect occurs when CO2 and other greenhouse gases trap heat in the Earth's atmosphere, leading to an increase in global temperatures. This effect is essential for maintaining the Earth's temperature within a habitable range. However, human activities have significantly increased the concentration of CO2 in the atmosphere, leading to enhanced greenhouse warming and climate change.
The role of atmospheric CO2 in the greenhouse effect is to absorb and re-emit infrared radiation, effectively trapping heat in the atmosphere. This leads to an increase in global temperatures, changes in weather patterns, and impacts on ecosystems and human societies. Efforts to mitigate the effects of atmospheric CO2 include reducing emissions through sustainable energy practices, reforestation, and carbon capture and storage technologies.
Identify whether your location has a continental or maritime climate.Compare and contrast your climate to that of an opposing continental or maritime climate
My location has a maritime climate. This means that it is influenced by the proximity to large bodies of water, such as oceans or seas, which leads to milder and more moderate temperatures throughout the year. In contrast, a continental climate is characterized by more extreme temperature variations, with hot summers and cold winters, due to the lack of a moderating influence from nearby water bodies.
In comparison to a continental climate, a maritime climate typically experiences less temperature variation throughout the year. The presence of water helps to moderate temperature extremes, leading to cooler summers and milder winters. Additionally, maritime climates often have higher levels of humidity and more precipitation, as the proximity to water bodies can lead to increased moisture in the air.
On the other hand, a continental climate tends to have drier air and lower levels of precipitation, as well as more pronounced seasonal changes. Summers in continental climates are typically hotter and drier, while winters are colder and snowier.
Overall, the main difference between a maritime and continental climate lies in the influence of water on temperature and precipitation patterns. While maritime climates are characterized by milder and more moderate conditions, continental climates experience more extreme temperature variations and drier conditions.
Large land masses located in the subarctic and arctic zones develop centers of low temperatures related to the high albedos of snow cover.
True
Using two examples of each,describe the climate,seasons and locations where isotherms are bent either poleward or northward.
It is envisaged that global temperatures will be on average higher than today's by anywhere between 1 and 3.5 degrees Celsius by 2100.Describe the changes that would result from such a change.
The warming effect of vegetation is the result of transpiring leaves and their interception of solar radiation.
Overall,net radiation is greatest at _____________ latitudes and smallest at ______________ latitudes.
Using Figure 3.27,identify and speculate on the impact upon human history in those eras.
City surfaces are darker and more absorbent than rural surfaces.
Air temperature increase with altitude,an inversion is present.This can develop on cloudy nights when the surface loses longwave radiation to space.
Generally,the height above the ground for a weather thermometer placement is approx.4 ft.,because:
Temperatures of air and soil at or very close to the ground surface are less variable than air temperatures measured at standard height.
Isotherms make a large north-south shift from January to July over continents in mid-latitude and subarctic zones.
What is the primary reason for thermometers being housed in a thermometer shelter?
Locations near oceans experience a wider range of air temperatures than locations in continental interiors.
Which of the following statements concerning land/water heating differences is correct?
Describe and explain how the urban heat island effect influences the climate of your location
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