Maritime Meteorology Quiz

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Questions and Answers

What is the primary purpose of meteorology in the maritime industry?

  • To study ocean currents and marine life
  • To predict weather patterns for recreational purposes
  • To facilitate safe navigation (correct)
  • To monitor air quality and pollution

What does a hygrometer measure?

  • Air pressure variations
  • Wind speed and direction
  • Cloud base height
  • Humidity (correct)

What is the purpose of a barometer in weather forecasting?

  • To calculate relative humidity
  • To measure cloud base height
  • To measure wind speed and direction
  • To predict weather changes (correct)

What is the primary use of altimeters in maritime navigation?

<p>For navigation during foggy conditions (B)</p> Signup and view all the answers

What is the dew point?

<p>The temperature at which air becomes saturated with moisture (A)</p> Signup and view all the answers

What instrument provides information about sea surface temperature?

<p>Sea thermometer (A)</p> Signup and view all the answers

What type of clouds are often associated with thunderstorms?

<p>Nimbostratus (C)</p> Signup and view all the answers

What is the term for the process by which water vapor changes directly to ice crystals?

<p>Deposition (D)</p> Signup and view all the answers

What type of cloud is often associated with fair weather?

<p>Cumulus (D)</p> Signup and view all the answers

What is an air mass?

<p>A large body of air that has similar temperature and moisture properties throughout (C)</p> Signup and view all the answers

What happens when a cold front meets a warm front?

<p>The cold air mass moves under the warm air mass (B)</p> Signup and view all the answers

What is a depression or low-pressure system?

<p>A region of low atmospheric pressure (A)</p> Signup and view all the answers

Flashcards

Purpose of meteorology in maritime industry?

To facilitate safe navigation by providing weather information.

What does a hygrometer measure?

An instrument used to measure the amount of moisture in the air.

Purpose of a barometer?

To predict weather changes by measuring atmospheric pressure.

Primary use of altimeters in maritime navigation?

For navigation during foggy conditions by measuring altitude.

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What is the dew point?

The temperature at which air becomes saturated with moisture, leading to condensation.

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Sea thermometer

An instrument that provides information about the temperature of the sea surface.

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Clouds associated with thunderstorms?

Clouds that are tall, dark, and often associated with heavy rain, lightning, and thunder.

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What is deposition?

The process by which water vapor changes directly into ice crystals without becoming liquid first.

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Cloud associated with fair weather?

White, puffy clouds with flat bases, often seen in good weather conditions.

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What is an air mass?

A large body of air that has relatively uniform temperature and humidity characteristics.

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Cold vs warm front?

The colder air mass, being denser, pushes under the warmer air mass, often leading to cloud formation and precipitation.

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Depression/Low-pressure system?

An area of low atmospheric pressure where the surrounding air flows inward, often associated with unstable weather conditions.

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Study Notes

Atmospheric Science

  • Variations in air pressure across different regions are caused by Earth's rotation.
  • Humidity is associated with the formation of clouds.

Meteorology in Maritime Studies

  • The primary purpose of meteorology in maritime studies is to facilitate safe navigation.
  • Meteorology plays a crucial role in mitigating weather-related risks to ensure safe maritime voyages.

Weather Measurement Instruments

  • A ceilometer measures cloud base height above the ground.
  • An anemometer measures wind speed.
  • A hygrometer measures humidity.
  • A barometer is essential for predicting weather changes.
  • An altimeter is primarily used for navigation during foggy conditions.
  • A barograph measures air pressure variations over time.

Clouds and Weather Phenomena

  • Dew point is the temperature at which air becomes saturated with moisture.
  • Cumulus clouds are associated with fair weather.
  • Stratus clouds are low-level clouds that often bring steady rain.
  • Cirrus clouds are thin and wispy, often appearing high in the sky.
  • Cumulonimbus clouds are associated with thunderstorms.
  • Nimbostratus clouds are often gray and bring continuous rain or snow.
  • Deposition is the process of water vapor changing directly to ice crystals.
  • Fog is a type of cloud that forms near the ground.

Fronts and Air Masses

  • A front is a boundary separating two masses of air of different densities.
  • An air mass is a large body of air that has similar temperature and moisture properties throughout.
  • A depression or low-pressure system is a region of low atmospheric pressure.
  • When a cold front meets a warm front, the cold air mass moves under the warm air mass.

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