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What was the first meteorological instrument, developed by Leonardo da Vinci in the 1400s?
A hygrometer
A thermometer
A mercurial barometer
A aneroid barometer
A psychrometer
What invention is regarded as the first step in the development of meteorology as a science?
The invention of the thermometer by Galileo Galilei.
The invention of the hygrometer by Leonardo da Vinci.
The invention the first mercurial barometer by the Italian mathematician Evangelista Torricelli.
The invention the first aneroid barometer by the French scientist Lucien Vidie.
The invention of the psychrometer.
What scientist first developed a system for organizing weather observations, using the Black Sea region's weather patterns to predict storm movements?
U. J. Leverrier
Leonardo da Vinci
Galileo Galilei
Evangelista Torricelli
Vilheim Bjerknes
What scientist developed the air-mass and polar-front theories of weather which are the basis for many of the forecasting rules used today?
Vilhelm Bjerknes
U. F. Leverrier
Galileo Galilei
Leonardo da Vinci
Lucien Vidie
Water vapor makes up approximately what percentage of our atmosphere?
One percent
Ten percent
78 percent
21 percent
Fifteen percent
Which of the following is NOT one of the 5 principal layers of the earth's atmosphere?
Photosphere
Stratosphere
Mesosphere
Exosphere
Troposphere
The chemosphere, or ozone layer, lies mainly between what two layers of the atmosphere?
The stratosphere and mesosphere.
The thermosphere and the exosphere.
The troposphere and the stratosphere.
The mesosphere and the exosphere.
The troposphere and the mesosphere.
The area of the atmosphere which encompasses the mesosphere and the thermosphere is known as what?
The Ionosphere
The Exosphere
The Tropopause
The Ozone Layer
The Jet Stream
Nearly all clouds are found in which of the layers of the atmosphere?
The troposphere
The stratosphere
The mesosphere
The thermosphere
The exosphere
What is the average temperature of air at sea level?
56 degrees F
56 degrees C
50 degrees F
60 degrees F
65 degrees F
What is adiabatic warming or cooling?
The automatic temperature change in rising or falling air.
The process of air moving upwards as it is heated close to the surface of the Earth.
The daily increase and then reduction in temperature caused by the rising and setting of the sun.
The temperature to which air must be heated or cooled at a constant pressure and water vapor content to reach saturation.
Warming or cooling as measured by aneroid barometers as opposed to mercurial barometers.
Carbon Dioxide makes up approximately what percentage of the Earth's atmosphere?
Less than 1 percent
21 percent
78 percent
71 percent
28 percent
Which of the following is NOT one of the overlapping areas of the Tropopause?
All three listed areas are a part of the Tropopause.
Tropical
Extratropical
Arctic tropopause
The Tropopause is not made up of overlapping sub areas.
The Jet Stream has been found to be strongest over which of the following countries?
Japan
Russia
France
Australia
Canada
When were Jet Stream winds first discovered?
During World War II
During World War I
During the Korean War
During the Space Age in the late 1950's and early 1960's
In the period just after World War I and prior to World War II
In North America, what season see the greatest movement of the Jet Stream southward?
Winter
Summer
Fall
Spring
Jet Stream winds are constant and do not vary by season
In which of the listed layers of the Earth's atmosphere does the temperature actually begin to get warmer near the upper limits of the layer?
The Stratosphere
The Troposphere
The Mesosphere
The Tropopause
The Exosphere
What layer of the Earth's atmosphere is used to reflect radio waves within certain frequency ranges to allow for world-wide radio communication?
The Ionosphere
The Troposphere
The Stratosphere
The Exosphere
The Tropopause
What gasses exist within the Exosphere?
Hydrogen and Helium
Neon and Argon
Nitrogen and Oxygen
Argon and Carbon Dioxide
Ozone and Xenon
A region of intense radiation within the Exosphere is known as the...
Van Allen radiation belt
Ozone layer
Thermosphere
Jet Stream
Tropopause
Variations in atmospheric pressure are measured using what type of instrument?
A barometer
A thermometer
A psychrometer
A mercurial thermometer
An aneroid thermometer
Which type of barometer is commonly used onboard Navy ships?
Aneroid Barometers
Mercurial Barometers
Wet bulb psychrometers
Dry bulb psychrometers
Nautical Barometers
Which of the following barometric readings is the average atmospheric pressure at the Earth's surface.
29.92 inches
30.03 inches
28.82 inches
30.92 inches
28.29 inches
Which of the following best describes how barometric pressure readings are given on TV and on weather charts?
Readings are in inches of mercury on TV and in millibars on weather charts.
Readings are in millibars on TV and in inches of mercury on weather charts.
Both methods use measurements in inches of mercury.
Both methods use measurements in millibars.
TV readings are in degrees Fahrenheit while charts depict degrees Celsius.
What type of weather front is formed when a warm-air mass moves over a cold air mass?
A Warm Front
A Cold Front
A Stationary Front
A Tropical Front
A Polar Front
Lines on a weather chart that are drawn through points of equal pressure are known as....
Isobars
Contours
Millibars
Gradients
Barometric Projections
What is the boiling point of water on the Fahrenheit scale?
212 degrees
186 degrees
100 degrees
32 degrees
267 degrees
What would 56 degrees Fahrenheit equate to on the Celsius scale?
13 degrees Celsius
44 degrees Celsius
28 degrees Celsius
100 degrees Celsius
0 degrees Celsius
What does the term Relative Humidity refer to?
The amount of water vapor the air is actually holding.
The amount of water vapor the air is capable of holding at a given pressure.
The comparison of the moisture content of one frontal system to another.
The local amount of humidity compared to an international standard.
There is no Relative Humidity, only Absolute Humidity.
What device is commonly used on ships to speed up the process of getting accurate relative humidity and dew point readings?