Isoline Practice

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Which location is the surface wind speed the lowest?

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Base your answer on the map below, which shows most of New York State. Isolines indicate the depth of the Precambrian bedrock surface below present-day sea level. Depths are in feet.

Which map best shows the location of the –4,000-foot isoline?

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The maps below show the odor fields from a neighborhood hamburger barbecue. An X marks the exact location of the barbecue grill. The wind was blowing from the northeast when map A was drawn. Map B represents the same area drawn 1 hour after map A was drawn.

Which conclusion about what happened during the hour is best supported by comparing these two maps?

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On the field map above, draw the 50-ppm, 100-ppm, and 150-ppm isolines. The 0-ppm isoline has been drawn for you.

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Base your answer on the information provided by the diagram. The diagram represents a sketch drawn in a notebook by an earth science student. Lines A, B, C, D, E, and F are isolines. The points along the isolines indicate the only locations where actual measurements were made. Points W, X, Y, and Z are reference locations in the field diagram.

Which is the best description of the value of the measured quantities along isoline C on the map?

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Which statement is true about an isoline on an air temperature field map?

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On the below that shows the total inches of snowfall received at various locations for the 1984-1985 winter season, draw the 120-inch snowfall isoline

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Approximately how many inches of average yearly precipitation does Rochester, New York, receive?

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Which New York State landscape region receives the greatest average yearly precipitation?

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Identify the amount of rainfall, in inches (in), that is predicted to occur at Oswego, New York, for the highest rainfall event occurring once in 100 years.

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Identify two New York State landscape regions with the highest predicted rainfall value for an event occurring once in 100 years.

Landscape region 1: _______ 
Landscape region 2: _______ 

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Base your answer on the map below, which shows coral reef distribution and diversity (number of different coral types) around the world. Isolines on the map represent the number of different types of coral. Coral reefs are found mostly in shallow tropical waters and do not grow when ocean temperatures fall below 18°C. The 18°C barrier represents the outer boundaries within which coral reefs normally grow. Points X and Y are locations on the map.

Which graph shows the number of coral types found along the 165° east longitude line between point X and point Y?

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Between which two locations does the steepest gradient occur?

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Which location is the surface wind speed the lowest?

Base your answer on the map below, which shows most of New York State. Isolines indicate the depth of the Precambrian bedrock surface below present-day sea level. Depths are in feet.Which map best shows the location of the –4,000-foot isoline?

On the field map above, draw the 50-ppm, 100-ppm, and 150-ppm isolines. The 0-ppm isoline has been drawn for you.

Which statement is true about an isoline on an air temperature field map?

On the below that shows the total inches of snowfall received at various locations for the 1984-1985 winter season, draw the 120-inch snowfall isoline

Approximately how many inches of average yearly precipitation does Rochester, New York, receive?

Which New York State landscape region receives the greatest average yearly precipitation?

Identify the amount of rainfall, in inches (in), that is predicted to occur at Oswego, New York, for the highest rainfall event occurring once in 100 years.

Between which two locations does the steepest gradient occur?

Between which two points is the greatest gradient?

Base your answer on the map below, which shows most of New York State. Isolines indicate the depth of the Precambrian bedrock surface below present-day sea level. Depths are in feet.

Which map best shows the location of the –4,000-foot isoline?