As a general rule of thumb, lows have a pressure of around 1,000 millibars 29. Weather is the state of the atmosphere, describing for example the degree to which it is hot or. Not only does meteorology look at how the atmosphere behaves, it also deals with the. Fair describes weather in which there is less than 410ths of opaque cloud cover, no precipitation, and there is no extreme visibility, wind or temperature conditions. In canada, a wave, in meteorology, is the intersection of warm and cold fronts. When a fair weather waterspout makes landfall it usually dissipates quickly as it. Backscattering is the principle underlying all weather radar systems, which can distinguish radar. Meteorology is the study of the atmosphere, atmospheric phenomena, and atmospheric effects on our weather.
A species of cumulus cloud characterized by small vertical development and a generally flattened appearance, vertical growth is usually restricted by the. Fair weather cumulus clouds puffy cotton balls floating in the sky fair weather cumulus have the appearance of floating cotton and have a lifetime of 540 minutes 6. In meteorology, atmospheric motions that are predominantly vertical. Unisa has forged a partnership with the south african weather service saws to enhance academic collaboration under the theme the mathematics and physics of meteorology in support of its applications in africa. Microbursts can cause extensive damage at the surface, and in some instances, can be lifethreatening. Meteorology, scientific study of atmospheric phenomena, particularly of the troposphere and lower stratosphere. These things include phenomena that are bound by the atmosphere. Applied to someone who is present only when things are going well or when they need something, but at the first sign of troublehardship, they disappear faster than brittney spearss career in sports, the term is often confused with a bandwagoner, but unlike bandwagon fans, a fair weather fan initially has some interest in the team, but they want nothing to do with them when tough times occur.
Cloud cover is 2 oktas or less of low and or medium clouds for most of the time. The nws uses fair, typically at night, to describe less than 38 cloud cover, with no precipitation and no extremes of visibility, temperature or. Common forecast terms and weather systems dominica. I also like fair weather cumulus clouds because they can be. Fair weather liberals are people who lack conviction in their faith, and tend to blow with the wind. Meteorology is the study of the processes in the earths atmosphere that cause particular. In meteorology any pattern identifiable on a weather map that has a cyclic pattern or a small cyclonic circulation in the early stages of development that moves along a cold front. The global atmospheric electrical circuit is the course of continuous movement of atmospheric electricity between the ionosphere and the earth. Gravity keeps the atmosphere from expanding much farther.
Fair meteorology definition,meaning online encyclopedia. Information about careers in meteorology, and a listing of colleges and universities offering. Fair weather condition describes the state of atmospheric electricity where air carries this electrical current between the earth and the ionosphere. Many of these terms and abbreviations are used by nws forecasters to communicate between each other and have been in use for many years and before many nws products were directly available to the public. Fairweather definition, used in or intended for fair weather only. This was finalised on 10 july 2017 when profes bhekie mamba, executive dean of the college of science, engineering and technology cset. Meteorology isnt the study of meteors, but it is the study of meteoros, greek for things in the air. Fair weather definition of fair weather by the free dictionary.
Dynamic processes cover a large range of scales from the microscopicscale. National weather service glossary this glossary contains information on more than 2000 terms, phrases and abbreviations used by the nws. Twice every day the bureau of meteorology sends out the official weather forecasts for towns and cities. Meteorology the following 200 pages are in this category, out of 360 total. A weather term implying no precipitation and no extreme conditions of clouds, visibility or wind. The earths atmosphere is a complex dynamical, physical, and chemical system. The nws definition says the sky is classified as mostly cloudy when 34 to 78 of the sky is. Meteorology definition and meaning collins english dictionary. The atmosphere is the gaseous layer of the physical environment that surrounds a planet. Meteorology is the study of the processes in the earths atmosphere that cause particular weather conditions.
In a more specific sense, the word fair may be used in a national weather service forecast or observation when less than 38 of the sky is covered by opaque clouds, there is no precipitation. As it turns out, fair weather can signify a lot of things, with one critical caveat. Do you have a specific question about a career as a meteorologist that isnt answered on this page. Browse meteorology news, research and analysis from the.
Information about careers in meteorology, and a listing of colleges and universities offering meteorology programs, are provided by the. Fair weather definition, used in or intended for fair weather only. Fair weather definition of fair weather by the free. Mar 15, 2011 fair weather liberals are people who lack conviction in their faith, and tend to blow with the wind. Everybody talks about the weather, but nobody does anything about it.
Do a science fair project in this area and at least youll be able to talk with more authority. A weather front is a boundary separating two masses of air of different densities, and is the principal cause of meteorological phenomena outside the tropics. What are the differences between climatology, meteorology and. Even with thick highlevel clouds overhead, yesterday saw fair weather conditions reported across the metro area, but what does this actually mean. Meteorology background aside, i personally would expect fair to be. The fair weather electric field is measured to be an average of 120 volts per meter directed downward to the ground. Meteorology is a subdiscipline of the atmospheric sciences, a term. Weather terms and descriptions explained with links to forcasts and climate information. What are the differences between climatology, meteorology. Fine no rain or other precipitation hail, snow etc. This glossary of meteorology is a list of terms and concepts relevant to meteorology and. When the wind is calm or blows to the left, they tend to be liberal, but when the wind changes. Meteorology definition and meaning collins english.
In surface weather analyses, fronts are depicted using various colored triangles and halfcircles, depending on the type of front. A subjective expression of an objective assessment of environmental fuels and weather factors which influence whether fires will start and how they may spread. Definition of meteorology from the collins english. It includes temperature, pressure, humidity, clouds, wind, precipitation and fog. Believe it or not, this weather term actually has an official definition.
If the peas need 1200 growing degreedays before they can be picked, and if the mean temperature for each day during may and june is 70f, in about how many days will the peas be ready to pick. Weather state of the atmosphere with respect to heat or cold, wetness or dryness, calm or storm, clearness or cloudiness. This was finalised on 10 july 2017 when prof bhekie mamba, executive dean of the college of science, engineering and technology cset. The atmosphere is the gas eous layer of the physical environment that surrounds a planet. Fair weather cumulus clouds also tell you that, at least for the moment, its safe to enjoy the outdoors without immediate fear of rain, lightning, or damaging winds. The technical term is the study of the atmosphere and its phenomena. Weather terms youve heard, but probably dont know what they. A weather term implying no precipitation and no extreme conditions of. Weather is the state of the atmosphere at a given time and place with regard to temperature, atmospheric pressure, humidity, wind, cloudiness, and precipitation. A microburst is a localized column of sinking air downdraft within a thunderstorm and is usually less than or equal to 2.
The 19th century saw modest progress in the field after weather observation networks were formed across. Meteorology news, research and analysis the conversation. The air masses separated by a front usually differ in temperature and humidity. Fair weather cumulus cloud article about fair weather.
Weather and atmospheric science offer lots of opportunities for interesting projects. Meteorological phenomena are observable weather events which. Often, meteorologists interface with the public, via television, forensic meteorology, produce forecasts etc. Through solar radiation, thunderstorms, and the fair weather condition, the atmosphere is subject to a continual and substantial electrical current. A national weather service convective precipitation descriptor for a 10 percent chance of measurable precipitation 0. Your weather forecast might call for partly cloudy skies, but do you know what that really means. For forecasting purposes, the absolute barometric pressure value is generally less important than the change in barometric pressure.
Meteorology entails the systematic study of weather and its causes, and provides the basis for weather forecasting. Twice every day the bureau of meteorology sends out. The study of the physics, chemistry, and dynamics of the atmosphere and the. Few clouds an official sky cover classification for aviation weather observations, descriptive of a sky cover of 18 to 28. Find out information about fair weather cumulus cloud.
Fair weather cumulus clouds are the kind of cloud that imaginative people can find all kinds of familiar shapes in. Weather and climate the structure of the atmosphere surrounding the earth is a gaseous envelope or atmosphere, held in place by the planets gravitational attraction. Fairweather definition is loyal only during a time of success. Fair weather cumulus clouds puffy cotton balls floating in the sky fair weather cumulus have the appearance of floating cotton and have a lifetime of 540 minutes. In meteorology, usually the eye of the storm hurricanetyphoon. Meteorology meaning in the cambridge english dictionary. Landfall is the event of a storm moving over land after being over water.
Fair weather cumulus clouds the ultimate weather guide. Meteorology is a branch of the atmospheric sciences which includes atmospheric chemistry and atmospheric physics, with a major focus on weather forecasting. Jan 14, 2020 when you see a red capital letter l on a weather map, youre looking at a symbolic representation of a lowpressure area, also known as a low. Fair definition, free from bias, dishonesty, or injustice.
Measurement edit the voltages involved in the earths circuit are significant. When a waterspout makes landfall it is becomes a regular tornado, which can then cause damage inland. Books on meteorology often describe earths atmosphere as a huge ocean of air in which we all live. Meteorology is the scientific study of the atmosphere that focuses on weather processes and forecasting. Meteorologyintroduction to the definitions wikibooks. His fairweather friends left him when he lost his money. Meteorology definition is a science that deals with the atmosphere and its phenomena and especially with weather and weather forecasting. Meteorology is the study of weather, especially in forecasting. Fair weather definition is loyal only during a time of success. In regards to research, meteorologists often study improvements to atmospheric models, or other aspects to forecasting. A low is an area where air pressure is lower than it is in the areas surrounding it. The study of meteorology dates back millennia, though significant progress in meteorology did not occur until the 18th century. Earths atmosphere is roughly 100 to 125 kilometers 6575 miles thick.
Meteorology is, by definition, the study of earths atmosphere. Meteorologyintroduction to the definitions wikibooks, open. High pressure meteorology definition,meaning online. The fairweather electric field is measured to be an average of 120 volts per meter directed downward to the ground.
Also, weather is the meteorological daytoday variations of the atmosphere and their effects on life and human activity. Microscale meteorology is the study of shortlived atmospheric phenomena smaller. Post your question on the science buddies ask an expert forum. It decreases exponentially with height with the air density because the dielectric strength decreases causing the atmospheres conductivity to increase. Meteorology definition of meteorology by merriamwebster. This term also is used in tropical meteorology to describe spiralshaped. When you see a red capital letter l on a weather map, youre looking at a symbolic representation of a lowpressure area, also known as a low. Weather and meteorology meteorology is the science that studies the processes and phenomena of the atmosphere. When viewed from above, winds spiral out of a highpressure center in a clockwise rotation in the northern hemisphere. Occurs when prevailing wind direction is from the same direction as the elevated terrain and often produces fair weather conditions. The root of meteor is a variation on the greek meteoron, which is a term dealing with any objects that originate in the sky. Fairweather definition of fairweather by merriamwebster. Mar 05, 2020 browse meteorology news, research and analysis from the.
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