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Questions and Answers
Distinguish between weather and climate?
Distinguish between weather and climate?
Weather refers to the state of the atmosphere at a given time and place (short duration). Climate is the generalization of weather conditions for a given place based on the average of past records.
List the basic elements of weather and climate?
List the basic elements of weather and climate?
Air temperature, Humidity, Type and amounts of clouds, Type and amount of precipitation, Air pressure, Wind speed
What is the environmental lapse rate, and how is it determined?
What is the environmental lapse rate, and how is it determined?
The environmental lapse rate is the decrease in temperature as you go up through the troposphere avg = 3.5 degrees F/ 100 ft. It is determined by radio sounds attached to a balloon.
Briefly explain the cause of the seasons?
Briefly explain the cause of the seasons?
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Write a general statement that relates the season, latitude, and length of daylight.
Write a general statement that relates the season, latitude, and length of daylight.
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Describe the relationship between the temperature of a radiating body and the wavelength it emits?
Describe the relationship between the temperature of a radiating body and the wavelength it emits?
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What is the likely cause of Quito, Ecuador's low average temperature?
What is the likely cause of Quito, Ecuador's low average temperature?
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Summarize the process by which water changes from one state of matter to another. Indicate whether energy is absorbed or released.
Summarize the process by which water changes from one state of matter to another. Indicate whether energy is absorbed or released.
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Briefly describe the principle of a psychrometer?
Briefly describe the principle of a psychrometer?
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Why does the adiabatic rate of cooling change when condensation begins?
Why does the adiabatic rate of cooling change when condensation begins?
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Explain the difference between the environmental lapse and adiabatic cooling?
Explain the difference between the environmental lapse and adiabatic cooling?
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List the 5 types of fog and describe how each type forms.
List the 5 types of fog and describe how each type forms.
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Describe sleet and freezing rain. Why does freezing rain occur on some occasions and sleet on others?
Describe sleet and freezing rain. Why does freezing rain occur on some occasions and sleet on others?
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Describe the operating principle of the mercury barometer and the aneroid barometer?
Describe the operating principle of the mercury barometer and the aneroid barometer?
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Write a generalization relating the spacing of isobars to wind speed?
Write a generalization relating the spacing of isobars to wind speed?
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Explain the seasonal change in winds associated with India. What term is applied to this seasonal wind shift?
Explain the seasonal change in winds associated with India. What term is applied to this seasonal wind shift?
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What is local wind?
What is local wind?
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Study Notes
Weather vs. Climate
- Weather denotes the atmospheric conditions at a specific time and place, while climate is the long-term average of weather patterns in a region.
Basic Elements of Weather and Climate
- Key elements include air temperature, humidity, types and amounts of clouds, precipitation types and amounts, air pressure, and wind speed.
Environmental Lapse Rate
- Represents the temperature drop of approximately 3.5°F per 100 feet in the troposphere, measured using radiosondes attached to weather balloons.
Cause of Seasons
- Seasons result from Earth's axial tilt and its orbit around the sun, affecting solar angle and duration.
Length of Daylight and Latitude
- Daylight length increases towards summer solstice with higher latitudes and decreases towards winter solstice.
Radiation and Temperature Relationship
- A hotter body emits shorter wavelengths of radiation, inversely related to temperature.
Quito, Ecuador's Average Temperature
- The low average temperature of 13°C (55°F) is due to its high altitude and effects of the environmental lapse rate.
Water State Changes
- Changes of state:
- Solid to gas (sublimation) - energy absorbed
- Solid to liquid (melting) - energy absorbed
- Liquid to gas (evaporation) - energy absorbed
- Gas to solid (deposition) - energy released
- Gas to liquid (condensation) - energy released
- Liquid to solid (freezing) - energy released
Psychrometer Principle
- A sling psychrometer operates on cooling achieved through the evaporation process.
Adiabatic Cooling and Condensation
- The adiabatic cooling rate decreases when condensation occurs due to the release of latent heat.
Environmental Lapse vs. Adiabatic Cooling
- The environmental lapse rate is the temperature decrease with altitude due to surface heating, while adiabatic cooling occurs from air expansion as it rises.
Types of Fog
- Advection fog: warm moist air over cool surfaces
- Radiation fog: rapid cooling of the earth's surface leads to condensation
- Upslope fog: cooling as air ascends a slope
- Steam fog: cool air meeting warm water
- Frontal fog: moist air slumping over cooler air with added moisture from rain
Sleet vs. Freezing Rain
- Sleet consists of ice pellets; freezing rain occurs when rain freezes upon contact. The formation of sleet vs. freezing rain depends on the thickness of the cold air layer beneath the inversion.
Barometer Principles
- Mercury barometer: air pressure supports a mercury column; aneroid barometer: a flexible metal chamber compresses with increasing air pressure.
Isobar Spacing and Wind Speed
- Close spacing of isobars indicates high wind speeds, while wider spacing suggests gentle winds.
Seasonal Wind Changes in India
- Winds shift seasonally from high-pressure areas over cold land in winter (dry conditions) to winds from the Indian Ocean in summer (monsoon season).
Local Wind Definition
- Local winds are generated by small-scale pressure differences due to temperature variations in specific areas.
Global Pressure and Rainforests
- The rainforests of Africa's Congo basin are linked to specific global pressure belts that influence local climate patterns.
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Test your knowledge on essential concepts in Earth Science with this set of flashcards. Covering crucial topics such as the distinction between weather and climate, and the basic elements that define them, this quiz is perfect for final exam preparation.