Precipitation: Water received on Earth directly from clouds as rain, hail, sleet, or snow.
Runoff: Precipitation that flows overland to surface waters, such as streams, rivers, and lakes.
Precipitation
Water from the atmosphere that falls to the ground as a liquid (rain) or a solid (snow, sleet, hail).
Primary Treatment ...
precipitation: Precipitation is when water falls from the sky in the form of rain, snow, hail, sleet, or freezing rain.
Precipitation process: The altering of dissolved compounds to insoluble or badly soluble compounds, in order to be able to remove the compounds by means of filtration.
precipitation interception
The stopping, interrupting, and temporary holding of precipitation in any form by a vegetative canopy or vegetation residue.
preconsolidation pressure (or prestress) ...
Precipitation. Rain, hail, mist, sleet, snow or any other moisture that falls to the Earth.
Precipitation: The part of the hydrologic cycle when water falls, in a liquid or solid state, from the atmosphere to Earth (rain, snow, sleet).
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Precipitation: Any and all forms of water, whether liquid or solid, that fall from the atmosphere and reach the Earth's surface.
Precipitation: Removal of hazardous solids from liquid waste to permit safe disposal; removal of particles from airborne emissions as in rain (e.g. acid precipitation).
Precipitation - What often occurs when clouds form upon reaching 100% relative humidity. If condensation nuclei are present, liquid or solid particles of water will form.
precipitation, chemical
to cause a solid substance to be separated (precipitate out) of a solution by the addition of chemical additives; the process of softening water by the addition of lime and soda ash as the precipitants.
pretreatment ...
precipitation 1) The process by which atmospheric moisture falls onto a land or water surface, such as rain, snow
precipitation gauge ...
Precipitation
Water, normally in the form or rain, snow and hail, which falls from the atmosphere to the earth as part of the water cycle, the process whereby solids or particle come out of solution.
Planktonic ...
Heavy Precipitation
In recent years, a higher percentage of precipitation in the United States has come in the form of intense single-day events. Eight of the top 10 years for extreme one-day precipitation events have occurred since 1990.
A acid precipitation
Definition (english only)
Any form of precipitation that carries chemicals (mainly sulphur oxides, sulphates, nitrogen oxides and nitrates, and ammonium compounds) that may cause acidification of surface waters, ...
Precipitation having a ph lower than the natural range of ~5.2 - 5.6; caused by sulfur and nitrogen acids derived from anthropogenic emissions.
Acidic ...
Precipitation: a) Formation of solids out of dissolved constituents; it is caused by a change in conditions (e.g. temperature) b) Water that falls to the ground surface from the atmosphere as rain, snow, hail, sleet, etc..
Precipitation The falling to earth of condensed water vapor in the form of rain, snow, sleet or hail.
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hail Precipitation in the form of balls or irregular lumps of ice with a diameter of 5 mm or more, always produced by convective clouds, nearly always cumulonimbus.
That part of precipitation, snowmelt, or irrigation water that runs off the land into streams or other surface-water. It can carry pollutants from the air and land into receiving waters.
Running Losses ...
run-off - precipitation that the ground does not absorb and that ultimately reaches rivers, lakes or oceans.
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National Acid Precipitation Assessment Program
NAPL
Non-Aqueous Phase Liquid ...
The amount of precipitation on a drainage area that does not escape as runoff. It is the difference between total precipitation and total runoff.
RETROFIT ...
Acid Rain: Precipitation which has been made acidic by airborne pollutants.
Acid Rain Rain or any form of precipitation of dilute solutions of strong mineral acids, created by the mixing in the atmosphere of pollutants, typically sulfur dioxide and nitrogen oxides compounds, ...
Conventional radar:instrument that detects the location, movement, and intensity of precipitation, and gives indications about the type of precipitation. It operates by emitting microwaves, which are reflected by precipitation. Also called radar.
Chelation is used to prevent the precipitation of metals (copper). Also see sequestration.
chemical oxygen demand (COD). An indirect measure of the amount of oxygen used by inorganic and organic matter in water.
The term also includes the amount of snow or other solid precipitation added to a glacier or snowfield by these processes.
acid deposition See acid precipitation.
acid precipitation air pollution consisting of all forms of precipitation, including wet and dry particles, that have an acidity lower than normal rainfall (pH 5.6).
acid rain.
CAPMoN- Canadian Air and Precipitation Monitoring Network
CAR- Corrective Action Report
CAS- Center for Automotive Safety; Chemical Abstract Service
CASAC- Clean Air Scientific Advisory Committee ...
Constant springs are fed large volumes of water in net positive storage in relation to the discharge rate and are not commonly affected by annual variation in seasonal precipitation. Example: Paradise Springs, Idaho, Ayios Isidheros, Cyprus.
US EPA emergency disinfection recomendations In areas where the water is "hard" (that is, containing significant dissolved calcium salts), boiling decomposes the bicarbonate ions, resulting in partial precipitation as calcium carbonate.
climate The long term average changes in temperature and precipitation. climate change Greenhouse gases emission are heating up the earth. The polar latitudes are most affected.
As precipitation continues, the surface of the soil becomes saturated - all the spaces between particles of soil are filled with water - and the rate at which water can infiltrate the soil is limited to the rate at which the water can move downwards ...
In its 2003 Draft Report on the Environment, the EPA stated that acidity in precipitation in the eastern US is still at least twice as high as in pre-industrial times.
As temperatures continue to rise, precipitation is projected to come more frequently in the form of heavy downpours. We can probably expect more extreme wet and dry conditions.
Precipitation varies from 28 inches per year in the northwestern section of the biome to 60 inches per year in the southeastern part; in most areas the precipitation is distributed evenly throughout the year.
Intergovernmental Panel on Climate Change said that if global warming were occurring, increased precipitation in Antarctica's interior would likely result. In his study, Davis reported growth in the interior East Antarctica ice mass.
Atmospheric conditions are expressed and described in terms of temperature, humidity, type and amount of precipitation (rain, snow, hail, drizzle, sleet, etc.), wind (speed, type and direction), air pressure, cloud cover and visibility.
Climate Change: Any significant change in measures of climate (such as temperature, precipitation or wind) lasting for an extended period (decades or longer).
Run-Off The part of precipitation water that runs off the land into streams or other surfacewater.
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Safe water Water that does not contain harmful bacteria, toxic materials, or chemicals, and is considered safe for drinking.
Infiltration: entry of water from precipitation, irrigation, or runoff into the soil profile.
Inorganic Chemicals: natural or synthetic chemicals that contain no carbon.
Insecticide: substance that kills insects.
This is expected to result in other climate changes including rises in sea level and changes in the amount and pattern of precipitation.
CLIMATE: Meteorological conditions, including temperature, precipitation, condensation and wind.
COLORADO RIVER AQUEDUCT: A 242-mile structure that transports water from the Colorado River to Southern California.
Hydraulic Cycle: The continuous circulation of water between the earth and the atmosphere, through condensation, precipitation, runoff, percolation, evaporation, transpiration, groundwater storage and seepage, ...
Stormflow. Surface flow originating from precipitation and run-off which has not percolated to an underground basin.
About one drop is in the atmosphere as vapor, clouds and precipitation (or the steam in your bathroom).
Another drop is in our soil, and part of life itself (our bodies are made up mostly of water, for instance).
There are different air cleaning technologies now in use including HEPA filtration, electrostatic precipitation and negative ion generation.
It is measured in terms of such things as wind, temperature, humidity, atmospheric pressure, cloudiness, and precipitation. In most places, weather can change from hour-to-hour, day-to-day, and season-to-season.
Air Cleaning: An IAQ control strategy to remove various airborne particulates and/or gases from the air. The three types of air cleaning most commonly used are particulate filtration, electrostatic precipitation, and gas sorption.
The science that deals with the properties of the waters of the earth, their distribution on the surface and underground, and the circulation cycles involving evaporation, precipitation, flow, etc.
Hydrometer ...
The greenhouse gases of most concern are carbon dioxide, methane, and nitrous oxides. If these gases in our atmosphere double, the earth could warm up by 1.5 to 4.5 degrees by the year 2050, with changes in global precipitation having the greatest ...
The actual evapotranspiration will commonly fall below the potential depending on the availability of water from precipitation and soil storage.
the precipitation from solution (e.g. shale, sandstone, limestone).
Separate, soil - mineral particles less than 2.00 mm in diameter and ranging between specified size limits. The names and ...
 See also: Water, Environment, Condition, Soil, Air
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