| A | B |
|---|
| Meteorology | the study of atmospheric phenomena |
| Weather | the current state of the atmosphere |
| Climate | Long ter variations of the weather |
| air mass | a large air current that takes on the characteristics of the land below it |
| air mass modification | describes how an air mass can change its characteristics as it moves over new regions |
| Coriolis effect | moving particles of water and air move in opposite directions in opposite hemispheres |
| trade winds | wind currents that are located closest to the equator |
| prevailing westerlies | wind systems located between 30 and 60 degrees latitudes |
| polar easterlies | wind systems located at both North and South Poles |
| jet streams | narrow bands of fast moving westerly winds |
| front | boundary between two mair masses |
| thermometer | measures temperature |
| barometers | measures atmospheric air pressure |
| anemometer | measures wind speeds |
| hygrometer | measures relative humidity |
| ceilometer | measures the height of cloud layers |
| radiosonde | gathers upper-level atmospheric data |
| Doppler effect | the change in wave frequency that occurs in energy as the energy moves towards or away from the observer |
| isopleth | lines that connect points of equal or constant values |
| station model | a record of weather data for a particular site at a particular time |
| digital forecast | relies on numerical data |
| analog forecast | involvues comparing current weather patters to patterns that took place in the past |
