- 行业: Weather
- Number of terms: 60695
- Number of blossaries: 0
- Company Profile:
The American Meteorological Society promotes the development and dissemination of information and education on the atmospheric and related oceanic and hydrologic sciences and the advancement of their professional applications. Founded in 1919, AMS has a membership of more than 14,000 professionals, ...
A nonrecording cylindrical rain gauge with a collector diameter of 20. 3 cm (8 in. ). The rain drains into a collector tube that amplifies the depth by a factor of 10. The depth in the collector tube is measured by a wooden ruler. Formerly in common use in the United States.
Industry:Weather
A branch of bioclimatology that studies the relations between organisms and their climatic environment. It includes the physiological adaptation of plants and animals to their climate, and the geographical distribution of plants and animals in relation to climate.
Industry:Weather
A groundwater hydrology term describing the slow and diffused discharge of groundwater to the surface or to streams.
Industry:Weather
Limitations or specifications placed by regulatory agencies on the quantity and quality of the effluent leaving a reservoir, waterway, or sewage (or industrial) treatment plant.
Industry:Weather
Term commonly used in water quality for liquid, partially or completely treated, that flows out of a reservoir, basin, sewage treatment plant, or industrial treatment plant.
Industry:Weather
1. The temperature at which motionless saturated air would induce, in a sedentary worker wearing ordinary indoor clothing, the same sensation of comfort as that induced by the actual conditions of temperature, humidity, and air movement. Effective temperature is used as a guide in air-conditioning practice, and, on the comfort chart (American Society of Heating and Air Conditioning Engineers), it appears as a family of curves that serves as one coordinate in defining comfort zones. Compare sensible temperature, cooling temperature, operative temperature. 2. In phenology, the temperature at which plants, especially cereals, begin to grow; generally about 0°C (32°F), for example, winter wheat, to 7°–10°C (45°–50°F), for example, maize. See degree-day. 3. With respect to radiation, the blackbody temperature that would yield the same amount of radiation as that emitted. The effective temperature of the earth as a whole is about 254 K, corresponding to an average emittance of 236 W m−2.
Industry:Weather
The final equilibrium height of the centerline of an effluent (smoke) plume from a smokestack or other source. The effective stack height is the sum of the actual physical height of the top of the stack, plus any plume rise due to buoyancy or initial momentum (inertia) of the rising effluent, minus any downwash such as stack downwash, building downwash, or terrain downwash. The downwashes are associated with wake turbulence behind objects on the ground.
Industry:Weather
The value of the aerodynamic roughness length over a heterogeneous surface that relates the horizontally averaged wind velocity profile to the spatially averaged or aggregated shear stress or momentum flux. The effective roughness length is defined only for heights above the numerical blending height and is dependent on the magnitude, distribution, and length scale of surface roughness variations. The effective roughness length is typically larger than linearly or geometrically averaged roughness lengths. See flux aggregation.
Industry:Weather
