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144 relations: Absorption (electromagnetic radiation), Afterglow, Air mass (astronomy), Air pollution, Alpenglow, Altitude, American Meteorological Society, Ammonia, Angular distance, Anthelion, Arabic, Arc (geometry), Atmosphere of Earth, Atmospheric duct, Atmospheric refraction, Backscatter, Black and white, Blue, Book of Optics, Cirrostratus cloud, Cirrus cloud, Cleveland Abbe, Cloud base, Cloud cover, Color, Color blindness, Color vision, Corona (optical phenomenon), Crepuscular rays, Cumulonimbus cloud, Dawn, Daylighting, Dew, Diamond dust, Diffraction, Diffuse sky radiation, Dispersion (optics), Dusk, Empirical evidence, Fata Morgana (mirage), French language, Frequency, Georgia State University, Gerrit de Veer, Green, Green flash, Hail, Hallucination, Halo (optical phenomenon), Halo (religious iconography), ..., Hexagon, Horizon, Ibn al-Haytham, Ice crystals, Image gradient, Indigo, Infrared, International Commission on Illumination, Inversion (meteorology), Isaac Newton, Italian language, Jacob's Ladder (disambiguation), John Peckham, Jupiter, Latin, Lens (optics), Light, Light pillar, Luminance, Mars, Meteorology, Methane, Mirage, Mirror, Molecule, Moon, Morgan le Fay, NASA, National Oceanic and Atmospheric Administration, National Weather Service, Natural environment, Neptune, Night, Noctilucent cloud, Novaya Zemlya, Novaya Zemlya effect, Observation, Ocean, Optical phenomena, Optics, Overcast, Oxford University Press, Parhelic circle, Particulates, Perception, Perspective (graphical), Photograph, Polar climate, Polar stratospheric cloud, Polarization (waves), Popular Mechanics, Prism, Ptolemy, Rain, Rainbow, Rayleigh scattering, Reflection (physics), Refraction, Roger Bacon, ROYGBIV, Sahara, Saint, San Diego State University, Saturn, Scattering, Sky, Solar irradiance, Strait of Messina, Subtropical ridge, Summer, Sun, Sun dog, Sunlight, Sunrise, Sunset, Temperature gradient, Thermocline, Thunderstorm, Tornado, Troposphere, United States, Uranus, Venus, Visible spectrum, Vitello, Warm front, Wavelength, Weather, Weather forecasting, Weather lore, Wildfire, Willem Barentsz, Wind, Zenith. Expand index (94 more) »
Absorption (electromagnetic radiation)
In physics, absorption of electromagnetic radiation is the way in which the energy of a photon is taken up by matter, typically the electrons of an atom.
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Afterglow
An afterglow is a broad arch of whitish or pinkish sunlight in the sky that is scattered by fine particulates like dust suspended in the atmosphere.
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Air mass (astronomy)
In astronomy, air mass (airmass, or AM) is the path length for light from a celestial source to pass through the atmosphere.
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Air pollution
Air pollution occurs when harmful or excessive quantities of substances including gases, particulates, and biological molecules are introduced into Earth's atmosphere.
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Alpenglow
Alpenglow (from Alpenglühen, Italian: Enrosadira) is an optical phenomenon that appears as a horizontal reddish glow near the horizon opposite of the Sun when the solar disk is just below the horizon.
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Altitude
Altitude or height (sometimes known as depth) is defined based on the context in which it is used (aviation, geometry, geographical survey, sport, atmospheric pressure, and many more).
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American Meteorological Society
The American Meteorological Society (AMS) is the premier scientific and professional organization in the United States promoting and disseminating information about the atmospheric, oceanic, and hydrologic sciences. Its mission is to advance the atmospheric and related sciences, technologies, applications, and services for the benefit of society.
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Ammonia
Ammonia is a compound of nitrogen and hydrogen with the formula NH3.
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Angular distance
In mathematics (in particular geometry and trigonometry) and all natural sciences (e.g. astronomy and geophysics), the angular distance (angular separation, apparent distance, or apparent separation) between two point objects, as viewed from a location different from either of these objects, is the angle of length between the two directions originating from the observer and pointing toward these two objects.
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Anthelion
An anthelion (plural anthelia, from late Greek ανθηλιος, "opposite the sun") is a rare optical phenomenon of the halo family.
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Arabic
Arabic (العَرَبِيَّة) or (عَرَبِيّ) or) is a Central Semitic language that first emerged in Iron Age northwestern Arabia and is now the lingua franca of the Arab world. It is named after the Arabs, a term initially used to describe peoples living from Mesopotamia in the east to the Anti-Lebanon mountains in the west, in northwestern Arabia, and in the Sinai peninsula. Arabic is classified as a macrolanguage comprising 30 modern varieties, including its standard form, Modern Standard Arabic, which is derived from Classical Arabic. As the modern written language, Modern Standard Arabic is widely taught in schools and universities, and is used to varying degrees in workplaces, government, and the media. The two formal varieties are grouped together as Literary Arabic (fuṣḥā), which is the official language of 26 states and the liturgical language of Islam. Modern Standard Arabic largely follows the grammatical standards of Classical Arabic and uses much of the same vocabulary. However, it has discarded some grammatical constructions and vocabulary that no longer have any counterpart in the spoken varieties, and has adopted certain new constructions and vocabulary from the spoken varieties. Much of the new vocabulary is used to denote concepts that have arisen in the post-classical era, especially in modern times. During the Middle Ages, Literary Arabic was a major vehicle of culture in Europe, especially in science, mathematics and philosophy. As a result, many European languages have also borrowed many words from it. Arabic influence, mainly in vocabulary, is seen in European languages, mainly Spanish and to a lesser extent Portuguese, Valencian and Catalan, owing to both the proximity of Christian European and Muslim Arab civilizations and 800 years of Arabic culture and language in the Iberian Peninsula, referred to in Arabic as al-Andalus. Sicilian has about 500 Arabic words as result of Sicily being progressively conquered by Arabs from North Africa, from the mid 9th to mid 10th centuries. Many of these words relate to agriculture and related activities (Hull and Ruffino). Balkan languages, including Greek and Bulgarian, have also acquired a significant number of Arabic words through contact with Ottoman Turkish. Arabic has influenced many languages around the globe throughout its history. Some of the most influenced languages are Persian, Turkish, Spanish, Urdu, Kashmiri, Kurdish, Bosnian, Kazakh, Bengali, Hindi, Malay, Maldivian, Indonesian, Pashto, Punjabi, Tagalog, Sindhi, and Hausa, and some languages in parts of Africa. Conversely, Arabic has borrowed words from other languages, including Greek and Persian in medieval times, and contemporary European languages such as English and French in modern times. Classical Arabic is the liturgical language of 1.8 billion Muslims and Modern Standard Arabic is one of six official languages of the United Nations. All varieties of Arabic combined are spoken by perhaps as many as 422 million speakers (native and non-native) in the Arab world, making it the fifth most spoken language in the world. Arabic is written with the Arabic alphabet, which is an abjad script and is written from right to left, although the spoken varieties are sometimes written in ASCII Latin from left to right with no standardized orthography.
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Arc (geometry)
In Euclidean geometry, an arc (symbol: ⌒) is a closed segment of a differentiable curve.
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Atmosphere of Earth
The atmosphere of Earth is the layer of gases, commonly known as air, that surrounds the planet Earth and is retained by Earth's gravity.
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Atmospheric duct
In telecommunications, an atmospheric duct is a horizontal layer in the lower atmosphere in which the vertical refractive index gradients are such that radio signals (and light rays) are guided or ducted, tend to follow the curvature of the Earth, and experience less attenuation in the ducts than they would if the ducts were not present.
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Atmospheric refraction
Atmospheric refraction is the deviation of light or other electromagnetic wave from a straight line as it passes through the atmosphere due to the variation in air density as a function of height.
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Backscatter
In physics, backscatter (or backscattering) is the reflection of waves, particles, or signals back to the direction from which they came.
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Black and white
Black and white, often abbreviated B/W or B&W, and hyphenated black-and-white when used as an adjective, is any of several monochrome forms in visual arts.
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Blue
Blue is one of the three primary colours of pigments in painting and traditional colour theory, as well as in the RGB colour model.
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Book of Optics
The Book of Optics (Kitāb al-Manāẓir; Latin: De Aspectibus or Perspectiva; Italian: Deli Aspecti) is a seven-volume treatise on optics and other fields of study composed by the medieval Arab scholar Ibn al-Haytham, known in the West as Alhazen or Alhacen (965– c. 1040 AD).
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Cirrostratus cloud
Cirrostratus is a high-level, very thin, generally uniform stratiform genus-type of cloud, composed of ice-crystals.
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Cirrus cloud
Cirrus (cloud classification symbol: Ci) is a genus of atmospheric cloud generally characterized by thin, wispy strands, giving the type its name from the Latin word cirrus, meaning a ringlet or curling lock of hair.
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Cleveland Abbe
Cleveland Abbe (December 3, 1838 – October 28, 1916) was an American meteorologist and advocate of time zones.
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Cloud base
The cloud base (or the base of the cloud) is the lowest altitude of the visible portion of the cloud.
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Cloud cover
'Cloud cover' (also known as 'cloudiness', 'cloudage', or 'cloud amount') refers to the fraction of the sky obscured by clouds when observed from a particular location.
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Color
Color (American English) or colour (Commonwealth English) is the characteristic of human visual perception described through color categories, with names such as red, orange, yellow, green, blue, or purple.
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Color blindness
Color blindness, also known as color vision deficiency, is the decreased ability to see color or differences in color.
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Color vision
Color vision is the ability of an organism or machine to distinguish objects based on the wavelengths (or frequencies) of the light they reflect, emit, or transmit.
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Corona (optical phenomenon)
In meteorology, a corona (plural coronae) is an optical phenomenon produced by the diffraction of sunlight or moonlight (or, occasionally, bright starlight or planetlight) by individual small water droplets and sometimes tiny ice crystals of a cloud or on a foggy glass surface.
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Crepuscular rays
Crepuscular rays (more commonly known as sunbeams, sun rays, or god rays), in atmospheric optics, are rays of sunlight that appear to radiate from the point in the sky where the sun is located.
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Cumulonimbus cloud
Cumulonimbus, from the Latin cumulus ("heaped") and nimbus ("rainstorm"), is a dense, towering vertical cloud, forming from water vapor carried by powerful upward air currents.
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Dawn
Dawn, from an Old English verb dagian: "to become day", is the time that marks the beginning of twilight before sunrise.
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Daylighting
Daylighting is the practice of placing windows, other openings, and reflective surfaces so that sunlight (direct or indirect) can provide effective internal lighting.
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Dew
Dew is water in the form of droplets that appears on thin, exposed objects in the morning or evening due to condensation.
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Diamond dust
Diamond dust is a ground-level cloud composed of tiny ice crystals.
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Diffraction
--> Diffraction refers to various phenomena that occur when a wave encounters an obstacle or a slit.
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Diffuse sky radiation
Diffuse sky radiation is solar radiation reaching the Earth's surface after having been scattered from the direct solar beam by molecules or particulates in the atmosphere.
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Dispersion (optics)
In optics, dispersion is the phenomenon in which the phase velocity of a wave depends on its frequency.
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Dusk
Dusk occurs at the darkest stage of twilight, or at the very end of astronomical twilight after sunset and just before night.
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Empirical evidence
Empirical evidence, also known as sensory experience, is the information received by means of the senses, particularly by observation and documentation of patterns and behavior through experimentation.
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Fata Morgana (mirage)
A Fata Morgana is an unusual and complex form of superior mirage that is seen in a narrow band right above the horizon.
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French language
French (le français or la langue française) is a Romance language of the Indo-European family.
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Frequency
Frequency is the number of occurrences of a repeating event per unit of time.
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Georgia State University
Georgia State University (commonly referred to as Georgia State, State, or GSU) is a public research university in downtown Atlanta, Georgia, United States.
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Gerrit de Veer
Gerrit de Veer (c. 1570 – after 1598) was a Dutch officer on Willem Barentsz' second and third voyages (1595 and 1596) in search of the Northeast passage.
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Green
Green is the color between blue and yellow on the visible spectrum.
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Green flash
Green flashes and green rays are optical phenomena that sometimes occur just after sunset or right before sunrise.
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Hail
Hail is a form of solid precipitation.
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Hallucination
A hallucination is a perception in the absence of external stimulus that has qualities of real perception.
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Halo (optical phenomenon)
Halo (from Greek ἅλως, halōs) is the name for a family of optical phenomena produced by sunlight interacting with ice crystals suspended in the atmosphere.
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Halo (religious iconography)
A halo (from Greek ἅλως, halōs; also known as a nimbus, aureole, glory, or gloriole) is a crown of light rays, circle or disk of light that surrounds a person in art.
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Hexagon
In geometry, a hexagon (from Greek ἕξ hex, "six" and γωνία, gonía, "corner, angle") is a six-sided polygon or 6-gon.
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Horizon
The horizon or skyline is the apparent line that separates earth from sky, the line that divides all visible directions into two categories: those that intersect the Earth's surface, and those that do not.
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Ibn al-Haytham
Hasan Ibn al-Haytham (Latinized Alhazen; full name أبو علي، الحسن بن الحسن بن الهيثم) was an Arab mathematician, astronomer, and physicist of the Islamic Golden Age.
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Ice crystals
Ice crystals are solid ice exhibiting atomic ordering on various length scales and include hexagonal columns, hexagonal plates, dendritic crystals, and diamond dust.
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Image gradient
An image gradient is a directional change in the intensity or color in an image.
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Indigo
Indigo is a deep and rich color close to the color wheel blue (a primary color in the RGB color space), as well as to some variants of ultramarine.
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Infrared
Infrared radiation (IR) is electromagnetic radiation (EMR) with longer wavelengths than those of visible light, and is therefore generally invisible to the human eye (although IR at wavelengths up to 1050 nm from specially pulsed lasers can be seen by humans under certain conditions). It is sometimes called infrared light.
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International Commission on Illumination
The International Commission on Illumination (usually abbreviated CIE for its French name, Commission internationale de l'éclairage) is the international authority on light, illumination, colour, and colour spaces.
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Inversion (meteorology)
In meteorology, an inversion is a deviation from the normal change of an atmospheric property with altitude.
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Isaac Newton
Sir Isaac Newton (25 December 1642 – 20 March 1726/27) was an English mathematician, astronomer, theologian, author and physicist (described in his own day as a "natural philosopher") who is widely recognised as one of the most influential scientists of all time, and a key figure in the scientific revolution.
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Italian language
Italian (or lingua italiana) is a Romance language.
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Jacob's Ladder (disambiguation)
Jacob's Ladder is a staircase to heaven from a dream of Jacob described in the Old Testament.
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John Peckham
John Peckham (c. 1230 – 8 December 1292) was Archbishop of Canterbury in the years 1279–1292.
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Jupiter
Jupiter is the fifth planet from the Sun and the largest in the Solar System.
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Latin
Latin (Latin: lingua latīna) is a classical language belonging to the Italic branch of the Indo-European languages.
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Lens (optics)
A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction.
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Light
Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum.
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Light pillar
A light pillar is an atmospheric optical phenomenon in the form of a vertical band of light which appears to extend above and/or below a light source.
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Luminance
Luminance is a photometric measure of the luminous intensity per unit area of light travelling in a given direction.
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Mars
Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System after Mercury.
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Meteorology
Meteorology is a branch of the atmospheric sciences which includes atmospheric chemistry and atmospheric physics, with a major focus on weather forecasting.
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Methane
Methane is a chemical compound with the chemical formula (one atom of carbon and four atoms of hydrogen).
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Mirage
A mirage is a naturally occurring optical phenomenon in which light rays bend to produce a displaced image of distant objects or the sky.
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Mirror
A mirror is an object that reflects light in such a way that, for incident light in some range of wavelengths, the reflected light preserves many or most of the detailed physical characteristics of the original light, called specular reflection.
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Molecule
A molecule is an electrically neutral group of two or more atoms held together by chemical bonds.
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Moon
The Moon is an astronomical body that orbits planet Earth and is Earth's only permanent natural satellite.
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Morgan le Fay
Morgan le Fay, alternatively known as Morgaine, Morgain, Morgana, Morganna, Morgant, Morgane, Morgen, Morgne, Morgue and other names and spellings, is a powerful enchantress in the Arthurian legend.
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NASA
The National Aeronautics and Space Administration (NASA) is an independent agency of the executive branch of the United States federal government responsible for the civilian space program, as well as aeronautics and aerospace research.
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National Oceanic and Atmospheric Administration
The National Oceanic and Atmospheric Administration (NOAA; pronounced, like "Noah") is an American scientific agency within the United States Department of Commerce that focuses on the conditions of the oceans, major waterways, and the atmosphere.
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National Weather Service
The National Weather Service (NWS) is an agency of the United States Federal Government that is tasked with providing weather forecasts, warnings of hazardous weather, and other weather-related products to organizations and the public for the purposes of protection, safety, and general information.
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Natural environment
The natural environment encompasses all living and non-living things occurring naturally, meaning in this case not artificial.
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Neptune
Neptune is the eighth and farthest known planet from the Sun in the Solar System.
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Night
Night or nighttime (sp. night-time or night time) is the period of time between sunset and sunrise, when the Sun is below the horizon.
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Noctilucent cloud
Noctilucent clouds, or night shining clouds, are tenuous cloud-like phenomena in the upper atmosphere of Earth.
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Novaya Zemlya
Novaya Zemlya (p, lit. the new land), also known as Nova Zembla (especially in Dutch), is an archipelago in the Arctic Ocean in northern Russia and the extreme northeast of Europe, the easternmost point of Europe lying at Cape Flissingsky on the Northern island.
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Novaya Zemlya effect
The Novaya Zemlya effect is a polar mirage caused by high refraction of sunlight between atmospheric thermoclines.
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Observation
Observation is the active acquisition of information from a primary source.
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Ocean
An ocean (the sea of classical antiquity) is a body of saline water that composes much of a planet's hydrosphere.
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Optical phenomena
Optical phenomena are any observable events that result from the interaction of light and matter.
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Optics
Optics is the branch of physics which involves the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it.
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Overcast
Overcast or overcast weather, as defined by the World Meteorological Organization, is the meteorological condition of clouds obscuring at least 95% of the sky.
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Oxford University Press
Oxford University Press (OUP) is the largest university press in the world, and the second oldest after Cambridge University Press.
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Parhelic circle
A parhelic circle is a halo, an optical phenomenon appearing as a horizontal white line on the same altitude as the sun, or occasionally the Moon.
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Particulates
Atmospheric aerosol particles, also known as atmospheric particulate matter, particulate matter (PM), particulates, or suspended particulate matter (SPM) are microscopic solid or liquid matter suspended in Earth's atmosphere.
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Perception
Perception (from the Latin perceptio) is the organization, identification, and interpretation of sensory information in order to represent and understand the presented information, or the environment.
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Perspective (graphical)
Perspective (from perspicere "to see through") in the graphic arts is an approximate representation, generally on a flat surface (such as paper), of an image as it is seen by the eye.
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Photograph
A photograph or photo is an image created by light falling on a light-sensitive surface, usually photographic film or an electronic medium such as a CCD or a CMOS chip.
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Polar climate
The polar climate regions are characterized by a lack of warm summers.
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Polar stratospheric cloud
Polar stratospheric clouds (PSCs), also known as nacreous clouds (from nacre, or mother of pearl, due to its iridescence), are clouds in the winter polar stratosphere at altitudes of.
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Polarization (waves)
Polarization (also polarisation) is a property applying to transverse waves that specifies the geometrical orientation of the oscillations.
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Popular Mechanics
Popular Mechanics is a classic magazine of popular science and technology.
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Prism
In optics, a prism is a transparent optical element with flat, polished surfaces that refract light.
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Ptolemy
Claudius Ptolemy (Κλαύδιος Πτολεμαῖος, Klaúdios Ptolemaîos; Claudius Ptolemaeus) was a Greco-Roman mathematician, astronomer, geographer, astrologer, and poet of a single epigram in the Greek Anthology.
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Rain
Rain is liquid water in the form of droplets that have condensed from atmospheric water vapor and then becomes heavy enough to fall under gravity.
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Rainbow
A rainbow is a meteorological phenomenon that is caused by reflection, refraction and dispersion of light in water droplets resulting in a spectrum of light appearing in the sky.
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Rayleigh scattering
Rayleigh scattering (pronounced), named after the British physicist Lord Rayleigh (John William Strutt), is the (dominantly) elastic scattering of light or other electromagnetic radiation by particles much smaller than the wavelength of the radiation.
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Reflection (physics)
Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated.
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Refraction
Refraction is the change in direction of wave propagation due to a change in its transmission medium.
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Roger Bacon
Roger Bacon (Rogerus or Rogerius Baconus, Baconis, also Rogerus), also known by the scholastic accolade Doctor, was an English philosopher and Franciscan friar who placed considerable emphasis on the study of nature through empiricism.
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ROYGBIV
ROYGBIV or Roy G. Biv is an acronym for the sequence of hues commonly described as making up a rainbow: red, orange, yellow, green, blue, indigo and violet.
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Sahara
The Sahara (الصحراء الكبرى,, 'the Great Desert') is the largest hot desert and the third largest desert in the world after Antarctica and the Arctic.
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Saint
A saint (also historically known as a hallow) is a person who is recognized as having an exceptional degree of holiness or likeness or closeness to God.
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San Diego State University
San Diego State University (SDSU) is a public research university in San Diego, California, and is the largest and oldest higher education institution in San Diego County.
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Saturn
Saturn is the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter.
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Scattering
Scattering is a general physical process where some forms of radiation, such as light, sound, or moving particles, are forced to deviate from a straight trajectory by one or more paths due to localized non-uniformities in the medium through which they pass.
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Sky
The sky (or celestial dome) is everything that lies above the surface of the Earth, including the atmosphere and outer space.
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Solar irradiance
Solar irradiance is the power per unit area received from the Sun in the form of electromagnetic radiation in the wavelength range of the measuring instrument.
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Strait of Messina
The Strait of Messina (Stretto di Messina), is a narrow strait between the eastern tip of Sicily (Punta del Faro) and the western tip of Calabria (Punta Pezzo) in the south of Italy.
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Subtropical ridge
The subtropical ridge, also known as the subtropical high or horse latitudes, is a significant belt of atmospheric high pressure situated around the latitudes of 30°N in the Northern Hemisphere and 30°S in the Southern Hemisphere.
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Summer
Summer is the hottest of the four temperate seasons, falling after spring and before autumn.
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Sun
The Sun is the star at the center of the Solar System.
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Sun dog
A sun dog (or sundog) or mock sun, formally called a parhelion (plural parhelia) in meteorology, is an atmospheric optical phenomenon that consists of a bright spot to the left or right of the Sun.
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Sunlight
Sunlight is a portion of the electromagnetic radiation given off by the Sun, in particular infrared, visible, and ultraviolet light.
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Sunrise
Sunrise or sun up is the instant at which the upper edge of the Sun appears over the horizon in the morning.
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Sunset
Sunset or sundown is the daily disappearance of the Sun below the horizon as a result of Earth's rotation.
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Temperature gradient
A temperature gradient is a physical quantity that describes in which direction and at what rate the temperature changes the most rapidly around a particular location.
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Thermocline
A thermocline (also known as the thermal layer or the metalimnion in lakes) is a thin but distinct layer in a large body of fluid (e.g. water, such as an ocean or lake) or air (such as an atmosphere) in which temperature changes more rapidly with depth than it does in the layers above or below.
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Thunderstorm
A thunderstorm, also known as an electrical storm, lightning storm, or thundershower, is a storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere, known as thunder.
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Tornado
A tornado is a rapidly rotating column of air that is in contact with both the surface of the Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud.
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Troposphere
The troposphere is the lowest layer of Earth's atmosphere, and is also where nearly all weather conditions take place.
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United States
The United States of America (USA), commonly known as the United States (U.S.) or America, is a federal republic composed of 50 states, a federal district, five major self-governing territories, and various possessions.
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Uranus
Uranus is the seventh planet from the Sun.
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Venus
Venus is the second planet from the Sun, orbiting it every 224.7 Earth days.
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Visible spectrum
The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye.
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Vitello
Witelo (also Erazmus Ciołek Witelo; Witelon; Vitellio; Vitello; Vitello Thuringopolonis; Vitulon; Erazm Ciołek); born ca.
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Warm front
A warm front is a density discontinuity located at the leading edge of a homogeneous warm air mass, and is typically located on the equator-facing edge of an isotherm gradient.
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Wavelength
In physics, the wavelength is the spatial period of a periodic wave—the distance over which the wave's shape repeats.
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Weather
Weather is the state of the atmosphere, describing for example the degree to which it is hot or cold, wet or dry, calm or stormy, clear or cloudy.
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Weather forecasting
Weather forecasting is the application of science and technology to predict the conditions of the atmosphere for a given location and time.
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Weather lore
Weather lore is the body of informal folklore related to the prediction of the weather.
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Wildfire
A wildfire or wildland fire is a fire in an area of combustible vegetation that occurs in the countryside or rural area.
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Willem Barentsz
Willem Barentsz (anglicized as William Barents or Barentz) (c. 1550 – 20 June 1597) was a Dutch navigator, cartographer, and Arctic explorer.
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Wind
Wind is the flow of gases on a large scale.
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Zenith
The zenith is an imaginary point directly "above" a particular location, on the imaginary celestial sphere.
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Redirects here:
Atmospheric Optics, Atmospheric optical phenomena, Atmospheric optical phenomenon, Meteorological optical illusion, Meteorological optics, Optical atmospheric phenomena, Optical atmospheric phenomenon.
References
[1] https://en.wikipedia.org/wiki/Atmospheric_optics
