Term
| The weight of the atmosphere |
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Definition
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Term
| Any instrument that measures air pressure |
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Definition
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Term
| Measurement of altitude using air pressure |
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Definition
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Term
| Lines that connect equal points of pressure |
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Definition
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Term
| The change in atmospheric pressure over distance between areas of higher pressure and lower pressure |
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Definition
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Term
| Is determined by humidity and temperature characteristics of an air mass. |
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Definition
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Term
| A ratio expressed as a percentage of the amount of water vapor that is actually in the air, compared to the maximum water vapor the air could hold at a given temperature. |
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Definition
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Term
| When air is holding all the water vapor that it can at a given temperature |
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Definition
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Term
| The temperature at which a given mass of air becomes saturated |
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Definition
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Term
| The percentage of total air pressure including the water vapor in the air |
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Definition
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Term
| The maximum water vapor capacity of air (100% at that temperature) |
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Definition
| Saturation Vapor Pressure |
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Term
| Measures that hair can change as much as 4% in length between 0% and 100% relative humidity. |
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Definition
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Term
| Has two parts, the dry-bulb thermometer which records the surrounding air temp. and the wet-bulb thermometer. |
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Definition
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Term
| The average decrease in temperature with increasing altitude (6.4 C per 1000 m) |
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Definition
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Term
| The actual lapse rate at a particular place and time |
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Definition
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Term
| Used if the air is less than saturated. (10 C per 1000 m) |
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Definition
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Term
| Used if the air is saturated. (6 C per 1000 m) |
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Definition
| Moist Adiabatic Rate (MAR) |
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Term
| If the rising air is cooler than or the same temperature as the surrounding air |
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Definition
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Term
| If the rising air is warmer than the surrounding air |
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Definition
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Term
| If, in rising, the air becomes warmer than the surrounding air only after cooling at the MAR |
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Definition
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Term
| Short-term, day-to-day condition of the atmosphere |
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Definition
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Term
| long-term average of weather conditions and extremes in a region |
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Definition
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Term
| Scientific study of the atmosphere |
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Definition
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Term
| Typically cold, dry and stable |
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Definition
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Term
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Definition
| cT (continental tropical) |
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Term
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Definition
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Term
| warm, moist, usually unstable |
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Definition
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Term
| Areas of similar weather statistics |
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Definition
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Term
| A classification based on causative factors (i.e. the interaction of air masses) |
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Definition
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Term
| A classification based on temperature and precipitation data; based on statistics or other data used to determine general categories |
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Definition
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