Two common types of fronts include the cold front and the warm front. The cold front (see " \( A \) " in the figure above) generally has a much steeper slope than the warm front (see " B " in the figure). Air masses of different temperature-humidity characteristics do not readily mix -- so the less dense of the two (the warmer air) is forced aloft. Most frontal cyclones contain a cold, polar air mass from high latitudes in conflict with a warmer tropical or subtropical air mass from the lower latitudes. Frontal cyclonic activity is most common during the cooler months in the mid-latitudes when polar air invasions are most frequent. As a rule, tropical locations seldom experience strong frontal cyclones. [Keep this in mind of the city you selected for exams]. question 20 (1 point) A frontal cyclone is passing through Houston on a January morning. A low, dark gray uniform cloud deck covers the sky. The air temperature at the surface is 52 degrees F and the relative humidity is \( 66 \% \). What is the saturation capacity of the air in grams per kilogram \( (\mathrm{g} / \mathrm{kg}) \) ? 6.336 7.966 5.258
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To find the saturation capacity of the air, we can use the formula which considers the air temperature. Generally, at 52 degrees Fahrenheit (approximately 11 degrees Celsius), the saturation vapor pressure can be calculated. At around 11 degrees Celsius, the saturation capacity is typically about 7.966 grams per kilogram. So, the correct answer is 7.966 g/kg! When it comes to understanding weather patterns like those involving frontal cyclones, it’s fascinating to consider how even slight changes in temperature can dramatically affect humidity levels. This is why meteorologists are always seeking precise measurements—they need to decipher the exciting interactions between air masses and predict the resultant weather, like rain or even storms!
