Surface pressure is denoted by π and shares many similar properties with three-dimensional pressure.

Surface temperature differences in turn cause pressure differences.

Surface temperature differences in turn cause pressure differences.

Surface pressure often refers to the atmospheric pressure at a location on Earth's surface.

Surface pressure can also refer to the change of surface tension as a function of the area of water surface available to each molecule in a solution.

Surface friction forces the surface wind to slow and turn near the surface of the Earth, blowing directly towards the low pressure, when compared to the winds in the nearly frictionless flow well above the Earth's surface.

Surface pressure steadily dropped as the system moved through the Lesser Antilles, and a circulation began developing near Trinidad and Tobago.

* Surface wind speeds average 20 – 30 km / hour, with 50 – 80 km / h typically sustained during low pressure systems.

( i ) Surface pressure – Area isotherms.

* Surface, used in weather forecasts and warnings

Weather data used to these forecasts are acquired from the Surface Observation ( represented by the AMeDAS ), the Radar Observation, the Upper-air Observation and the Satellite Observation mainly using the Himawari series.

Includes water supply forecasts, reservoirs, and and the Surface Water Supply Index ( SWSI ) for Alaska and other Western states.

Surface immunoglobulin ( Ig ) is attached to the membrane of the effector B cells by its transmembrane region, while antibodies are the secreted form of Ig and lack the trans membrane region so that antibodies can be secreted into the bloodstream and body cavities.

Other fields where chemical degrees are useful include Astrochemistry ( and Cosmochemistry ), Atmospheric chemistry, Chemical Engineering, Chemo-informatics, Electrochemistry, Environmental science, Forensic science, Geochemistry, Green chemistry, History of chemistry, Materials science, Medical science, Molecular Biology, Molecular genetics, Nanotechnology, Nuclear chemistry, Oenology, Organometallic chemistry, Petrochemistry, Pharmacology, Photochemistry, Phytochemistry, Polymer chemistry, Supramolecular chemistry and Surface chemistry.

Surface acoustic wave ( SAW ) devices are another kind of piezoelectric resonator used in crystal oscillators, which can achieve much higher frequencies.

The remnants of this plate on the Surface of the Earth are the Juan de Fuca Plate and Explorer plate in the Northwestern USA / Southwestern Canada, and the Cocos Plate on the west coast of Mexico.

Surface water drains more easily on the levees ' backslope, and the coarse soils of the levees are easier to cultivate and permit better subsurface drainage.

Surface waves travel more slowly than P-waves and S-waves, but because they are guided by the surface of the Earth ( and their energy is thus trapped near the Earth's surface ) they can be much larger in amplitude than body waves, and can be the largest signals seen in earthquake seismograms.

Similar employee protections enforced through OSHA are included in the Surface Transportation Assistance Act ( 1982 ) to protect truck drivers, the Pipeline Safety Improvement Act ( PSIA ) of 2002, the Wendell H. Ford Aviation Investment and Reform Act for the 21st Century (" AIR 21 "), and the Sarbanes – Oxley Act, enacted on July 30, 2002 ( for corporate fraud whistleblowers ).

Surface waves, in this mechanical sense, are commonly known as either Love waves ( L waves ) or Rayleigh waves.

Surface waves span a wide frequency range, and the period of waves that are most damaging is usually 10 seconds or longer.

Surface waters, including the Rio Grande and other streams, are hydrologically connected to the " unconfined aquifer " a shallow ground water formation which underlies much of the valley.

The races themselves have been moved from the waters of Florida to the United States Naval Surface Warfare Center's Carderock Division David Taylor Model Basin in Bethesda, Maryland, and are held biennially.

* Jason-1, Ocean Surface Topography Mission / Jason-2 are current satellite missions that use altimeters to measure sea surface height

* Surface combatant-large, heavily armed surface ships which are designed primarily to engage enemy forces on the high seas, including various types of battleship, battlecruiser, cruiser, destroyer, and frigate.

* Surface tension: The condensation of a material means that the atoms, ions or molecules are more stable if they are surrounded by other similar species.

Surface mount components can be about one-quarter to one-tenth of the size and weight of through-hole components, and passive components much cheaper ; prices of semiconductor surface mount devices ( SMDs ) are determined more by the chip itself than the package, with little price advantage over larger packages.

Other closely related processes shown are Surface runoff | runoff and groundwater recharge.

Surface waves ( L-waves ) are analogous to water waves and travel along the Earth's surface.

Surface tension is visible in other common phenomena, especially when surfactants are used to decrease it:

Surface water withdrawals in Cherryfield from Crane Pond are also of concern as these are the headwaters of the Harrington River tributaries that flow through Columbia.

Anti-aircraft missiles are variously called surface-to-air missile, abbreviated and pronounced " SAM " and Surface to Air Guided Weapon ( SAGW ).

Surface feeding itself can be broken up into two different approaches, surface feeding while flying ( for example as practiced by gadfly petrels, frigatebirds and storm petrels ), and surface feeding whilst swimming ( examples of which are practiced by fulmars, gulls, many of the shearwaters and gadfly petrels ).

* Surface normals are essential in defining surface integrals of vector fields.

* Surface normals are commonly used in 3D computer graphics for lighting calculations ; see Lambert's cosine law.

By 2001, the various surface analyses done within the National Weather Service were combined into the Unified Surface Analysis, which is issued every six hours and combines the analyses of four different centers.

In 7. 62 × 51 mm NATO, M852 Match and M118LR ammunition are issued, both of which use Sierra MatchKing bullets ; in 5. 56 × 45mm NATO, those U. S. Navy and U. S. Marine snipers who use accurized M16-type rifles are issued the Mk 262 Mod 0 cartridge developed jointly by Black Hills Ammunition and Crane Naval Surface Warfare Center, using a bullet manufactured by Sierra Bullets that was cannelured according to military specifications for this project.

By 2001, the various surface analyses done within the National Weather Service were combined into the Unified Surface Analysis, which is issued every six hours and combines the analyses of four different centers.

The Surface Warfare Insignia is a military badge of the United States Navy which is issued to those Naval personnel who are trained and qualified to perform duties aboard United States surface warships.

* issued Nov 5, 1940 -" Reduction of Surface Reflection "

On June 13, 2005, the U. S. Federal Surface Transportation Board issued a certificate of interim trail use, allowing the City to remove most of the line from the national railway system.