earth science core curriculum: 2.1g weather variables can be represented in a variety of formats...
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Earth Science Core Curriculum:2.1g Weather variables can be represented in a variety of formats including radar and satellite images, weather maps (including station models, isobars, and fronts), atmospheric cross-sections, and computer models.
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Loury asked for a conference yesterday so that we could talk about weather station models. Here is the question we discussed:
• What is a weather station model?– Draw a weather station model and label its parts– Describe how present weather is represented on
weather station models
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Loury decided that the Earth Science Reference Table might help, so we turned to page 13.
Here it is!
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There are three confusing areas on the weather station model: temperature/dewpoint, wind, and barometric pressure.
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Temperature and Dewpoint:• Both are given in degrees Fahrenheit• The closer together the two numbers, the
more likely it is there will be precipitation!
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Wind Speed:
Wind Direction:
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Barometric Pressure:• This number is not real pressure. We have to change it into
millibars.• To do this:– If the first number is less than 4, add a 10 to the front– If the first number is greater than 6, add a 9 to the front. – Put a decimal before the last number
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Examples of Barometric Pressure:
To do this:• If the first number is less than 4, add a 10 to the front• If the first number is greater than 6, add a 9 to the front. • Put a decimal before the last number
What is the pressure at this station model?
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Examples of Barometric Pressure:
This shows what is happening to the pressure: is it going up, is it going down, is it staying the same?
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Your turn to make a weather station model!Temperature: 41°F Wind Speed: 10 knotsDewpoint: 30°F Wind Direction: NEVisibility: 9 miles Precipitation: 0.15 inchesCloud Cover: 50% Present Weather: DrizzlePressure: 1020.0 mb Barometric Trend: 1.2 mb decrease
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Temperature: 41°F Wind Speed: 10 knotsDewpoint: 30°F Wind Direction: NEVisibility: 9 miles Precipitation: 0.15 inchesCloud Cover: 50% Present Weather: DrizzlePressure: 1020.0 mb Barometric Trend: 1.2 mb decrease