| A | B |
|---|
| D.A.R. (dry adiabatic rate)- | (1)when the air is rising and the relative humanity is less than 100% (2) whenever the air is subsiding |
| dew | condensation onto the surface of an object that has dropped below the dew point temperature |
| dew point temperature | the temp at which an air mass becomes saturated and relative humidity is 100%. At that point condensation or sublimation will occur |
| divergent wind circulation | pressure-and-wind system where the airflow is outward away from the center, where pressure is highest |
| doldrums | zone of low pressure and calms along the equator |
| doppler radar | advanced type of radar that can detect motion in storms, specifically motion toward and away from the radar signal |
| E.L.R. Environmental lapse rate | decrease in temperature with altitude under normal atmospheric conditions; approximately 6.5*C/1000 meters (3.6*F/1000 ft) |
| el nino | warm countercurrent that influences the central and eastern pacific |
| equatorial low/trough | zone of low atmospheric pressure centered more or less over the equator where heated air is rising |
| evaporation | liquid to gas |
| evapotranspiration | the loss of moisture to the atmosphere from plants, soils, and water bodys |
| upslope fog | where rises up along the sides of a mountain, it cools and it cools and condences |
| evaporation fog | when cold r settle over a warm body of water |
| radiation fog | I formed when ir cools I contact with a cold ground surface |
| advection/California fog | formed by the movement of warm moist air across a cold sea or land surface, as the air moves across that cold surface it cools, relative humidity rises, and the air condences |
| freezing | liquid to solid |
| freezing rain “sleet”- | condensation falling then freezing |
| frontal lifting | happens when warm and cold air masses meet and the warm air is forced to rise; the line of separation at the surface of the planet between warm and cold masses |
| occulded front | - two cold air masses meet forcing all warm air upwards |
| stationary front | warm and cold air masses are next to each other but neither is aggressive |
