air mass

From: A Dictionary of Weather | Date: 2001| Author: STORM DUNLOP | Copyright information

air mass A large body of air, whose properties (temperature, humidity, and lapse rate) are essentially homogeneous over an area several hundred kilometres across. Fronts form the boundaries between air masses with differing properties.

The nature of air masses is determined by three factors: the properties o...

Read all of this article with a FREE trial to HighBeam Research

Related newspaper, magazine, and journal articles from HighBeam Research

Evaporation and Precipitation Surface Effects in Local Mass Continuity Laws of Moist Air
Journal of the Atmospheric Sciences ; ABSTRACT The local mass balance equations of cloudy air are formulated for a model system composed ... meters per second relative to their ambient air. Precipitation transports mass from the atmosphere to the surface, whereby ... the condensate is affected, but also the mass budget of the ...
ARCTIC AIR MASSES BORN IN CANADA AND ALASKA MIGRATE OUR WAY
The Milwaukee Journal Sentinel ; ... weather continues across Wisconsin, arctic air masses will be getting stronger in their ... and Alaska. These bitter cold masses of air are a common occurrence to our north. Given a big enough mass of air and the proper upper air wind flow, subzero ... form at the surface with the arctic ...
Fresno, Calif., Officials Plan to Streamline Mass Transit, Make Air Cleaner.
The Fresno Bee (Fresno, California) (via Knight-Ridder/Tribune Business News) ; ... At a meeting to discuss streamlining Fresno County mass transit, Supervisor Bob Waterston outlined a consolidation ... summit and a monthly meeting of the San Joaquin Valley Air Pollution Control District. He appeared at the air board with Mayor Alan Autry to urge support for a Valleywide clean-air ...
Dynamically consistent formulations in meteorological and air quality models for multiscale atmospheric studies. Part II: Mass conservation issues
Journal of the Atmospheric Sciences ; ABSTRACT Eulerian air quality models that require gridded meteorological ... nological data closely. For2 evaluating mass consistency in meteorological data, one ... meteorological models should be used in air quality simulations. It proposes a general methodology to conserve mass of trace species in ...
Future should be `Green' for designing buildings. (Meeting update/SMACNA).(Douglas Mass of Cosentini Associates talks about heating, ventilation, and air conditioning systems)(Brief Article)
Air Conditioning, Heating & Refrigeration News ; ... Systems at the recent Sheet Metal and Air Conditioning Contractors' National Association (SMACNA) convention here, Mass defined what goes into a sustainable design ... of sheet metal contractors: underfloor air distribution. In order to get to the point ... and contractor integration, stressed Mass. I ...