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Seismological method
Seismic inversion involves the set of methods which seismologists use to infer properties through physical measurements. Surface-wave inversion is the
Surface-wave_inversion
Physical phenomenon
a surface wave is a mechanical wave that propagates along the interface between differing media. A common example is gravity waves along the surface of
Surface_wave
Deviation from the normal change of an atmospheric property with altitude
Temperature inversion can cause freezing rain in cold climates. Usually, within the lower atmosphere (the troposphere) the air near the surface of the Earth
Inversion_(meteorology)
Strongest recorded earthquake in the Netherlands and in Northwestern Europe
(1994). "Source mechanism of the 1992 Roermond earthquake from surface- wave inversion of regional data" (PDF). Geophysical Journal International. 116
1992_Roermond_earthquake
This is a list of wave topics. Contents: Top 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Index_of_wave_articles
Type of wave within a fluid medium
thermocline in lakes and oceans or an atmospheric inversion), the waves propagate horizontally like surface waves, but do so at slower speeds as determined by
Internal_wave
Process of calculating the causal factors that produced a set of observations
problems such as the inverse problem in the 1D wave equation. But it rapidly turned out that the inversion is an unstable process: noise and errors can
Inverse_problem
Wave that remains in a constant position
antinodes. Standing waves were first described scientifically by Michael Faraday in 1831. Faraday observed standing waves on the surface of a liquid in a
Standing_wave
Type of field-effect transistor
p-type MOSFET, bulk inversion happens when the intrinsic energy level at the surface becomes smaller than the Fermi level at the surface. This can be seen
MOSFET
Behaviour of travelling radio waves
radio waves can travel as surface waves following the contour of the Earth; this is called ground wave propagation. In this mode the radio wave propagates
Radio_propagation
Radio propagation due to unusual conditions
increases in both cases and the EM wave bends toward the ground instead of continuing upward. On surface-base inversion, the beam will eventually hit the
Anomalous_propagation
difference of seismic waves across areas. The modelling process involves some steps, including cross-correlation, Green's function, and inversion. The usage of
Subsurface mapping by ambient noise tomography
Subsurface_mapping_by_ambient_noise_tomography
Type of atmospheric trough
Air Layer (SAL) follows a tropical wave, leaving cloudless skies, as convection is capped by the dry layer inversion. Additionally, any dust in the SAL
Tropical_wave
Roller coasters are widely known for their drops, inversions, airtime, and other intense ride elements that contribute to the ride. They are also made
List of roller coaster elements
List_of_roller_coaster_elements
Optical phenomenon
pass through air layers of different temperatures in a steep thermal inversion where an atmospheric duct has formed. In calm weather, a layer of significantly
Fata_Morgana_(mirage)
Layer of the atmosphere above the troposphere
exothermically photolyzed into oxygen in a cyclical fashion. This temperature inversion is in contrast to the troposphere, where temperature decreases with altitude
Stratosphere
Atmospheric stationary oscillations
types of waves which form under different atmospheric conditions. Wind shear can also create waves. This occurs when an atmospheric inversion separates
Lee_Waves
Device that emits light via optical amplification
pulses at the rate of the round-trip time.) For continuous-wave operation, the population inversion of the gain medium needs to be continually replenished
Laser
Difference in wind speed or direction over a short distance
pilots on rare occasions. Wind shear can also produce wave. This occurs when an atmospheric inversion separates two layers with a marked difference in wind
Wind_shear
Measure of earthquake size
moment tensor inversion of intermediate- and long-period body- and surface-waves. Mww – Derived from a centroid moment tensor inversion of the W-phase
Moment_magnitude_scale
Meteorological phenomenon
below the inversion. The air descending from the peninsula to the east goes underneath the inversion layer and this generates a series of waves or rolling
Morning_Glory_cloud
Low-frequency plasma wave
equilibrium) inversions and magnetic field extrapolations of sunspot atmospheres, Grant et al. found evidence for elliptically polarized Alfvén waves forming
Alfvén_wave
Nonlinear optical process
without a change in frequency from absorbed to emitted waves). At the surface of a small sphere, inversion symmetry is broken, allowing for SHG and other even
Second-harmonic_generation
Variety of cloud
United States, when the surface temperature is still relatively cool. The wavy strips of clouds are generally near an inversion surface. Also referred to as
Altostratus_undulatus_cloud
current law. "Bloomberg Special Tax Inversion". Bloomberg. 2 May 2017. Liz Hoffman (7 July 2015). "The Tax Inversion Wave Keeps Rolling". The Wall Street
Corporation tax in the Republic of Ireland
Corporation_tax_in_the_Republic_of_Ireland
Geophysical principle
applied to tailings characterisation through P- and S-wave travel time tomographic inversions. Reflection seismology Seismic wide-angle reflection and
Seismic_refraction
Applied branch of geophysics and economic geology
method renders a layered (one-dimensional) shear wave velocity profile for the soil. Full-waveform-inversion (FWI) methods are among the most recent techniques
Exploration_geophysics
Measure of the strength of earthquakes
distinguish it from two other scales they had developed, the surface-wave magnitude (MS) and body wave magnitude (MB) scales. The Richter scale was defined in
Richter_scale
Interpretation of seismic data using linear model
relate to seismic inversion since no traveling acoustic waves are involved, it nonetheless introduces practical application of the inversion technique in a
Linear_seismic_inversion
Symmetry of spatially mirrored systems
In physics, a parity transformation (also called parity inversion) is the flip in the sign of one spatial coordinate. In three dimensions, it can also
Parity_(physics)
Weather event in the United States
as indicated by the strong inversion present between the surface and 925 mb on the 1200 UTC PAH sounding. Gravity waves thrive near boundaries, as convergence
June_4,_1993,_derecho
Châtelet surfaces Dupin cyclides, inversions of a cylinder, torus, or double cone in a sphere Gabriel's horn Right circular conoid Roman surface or Steiner
List of complex and algebraic surfaces
List_of_complex_and_algebraic_surfaces
Method to solve scalar wave equation
Fresnel–Kirchhoff integral theorem) is a surface integral to obtain the value of the solution of the homogeneous scalar wave equation at an arbitrary point P
Kirchhoff_integral_theorem
Distinct layer of temperature change in a body of water
ocean's surface, which heats during the day and cools at night as heat energy is lost to space by radiation. Waves mix the water near the surface layer
Thermocline
Atmospheric phenomenon
temperature at the surface drops below the freezing point. The thickness of a fog layer is largely determined by the altitude of the inversion boundary, which
Fog
Self-reinforcing single wave packet
mathematics and physics, a soliton is a nonlinear, self-reinforcing, localized wave packet that is strongly stable, in that it preserves its shape while propagating
Soliton
Horizontal layer that propagates electromagnetic radiation
(Russian OTH radar system based on atmospheric ducting) Sky wave Thermal fade Temperature inversion Tropospheric ducting Thomas, Michael Frederic (2006). Optical
Atmospheric_duct
Type of transistor
states forming an inversion layer. Bardeen's hypothesis marked the birth of surface physics. Bardeen then decided to make use of an inversion layer instead
Field-effect_transistor
Technology for measuring surface waves on water
radar remote sensors for ocean waves. Direct sensor measures directly some relevant parameter of the wave system (like surface elevation or water particle
Wave_radar
Electromagnetic propagation in relation to the troposphere
cools, as does the surface temperature, but at different rates. This produces a boundary or temperature gradient, which allows an inversion level to form –
Tropospheric_propagation
Measurement method using interference of waves
reference beams each experience two front-surface reflections, resulting in the same number of phase inversions. The result is that light traveling an equal
Interferometry
Object that reflects an image
hard surface. A mirror is a wave reflector. Light consists of waves, and when light waves reflect from the flat surface of a mirror, those waves retain
Mirror
Study of the structure and dynamics of the Sun through its oscillation
These are principally caused by sound waves that are continuously driven and damped by convection near the Sun's surface. It is similar to geoseismology, or
Helioseismology
Narrowly focused radar beam whose reflected signal is used to obtain a missile lock-on
in use by the United States Navy: Mk 95 — Continuous Wave Illuminator (NATO Sea sparrow Surface Missile System) Mk 92 — Combined Antenna System (Mk 75
Fire-control_radar
Mathematical transformation
sphere geometry is the transformation by reciprocal directions or Laguerre inversion, being a generator of the Laguerre group. It transforms not only spheres
Spherical_wave_transformation
Seismic wave velocity variation
J.; Herrmann, R. B.; Correig, A. M. (2000). "Joint inversion of receiver function and surface wave dispersion observations". Geophysical Journal International
Seismic_velocity_structure
discussed here. The inversion method of Wang was by far the best method for phase correction. Futterman (1962) ‘Dispersive body waves’. Journal of Geophysical
Dispersive_body_waves
Device that amplifies an optical signal
titled "Light Amplifiers Employing Collisions to Produce Population Inversions" (subsequently amended as a continuation in part and finally issued as
Optical_amplifier
Antenna consisting of two rod-shaped conductors
appropriate weighting function the cost may be minimized through the inversion of a N×N matrix. Determination of each matrix element requires at least
Dipole_antenna
Type of magnetic state
g-, or i-wave order parameters. A d-wave altermagnet can be regarded as the magnetic counterpart of a d-wave superconductor. Fermi surface of an altermagnetic
Altermagnetism
Surface engineering process
on the opaque overlay surface by the expanding plasma enters the target surface as a high-amplitude stress wave or shock wave. Without a transparent
Laser_peening
Short-term state of the atmosphere
This phenomenon is known as an inversion and can cause mountaintops to be warmer than the valleys below. Inversions can lead to the formation of fog
Weather
Fracture or discontinuity in displaced rock
movement inverted in opposite directions to the original movement (fault inversion). In such a way, a normal fault may therefore become a reverse fault and
Fault_(geology)
Type of radio propagation
of radio waves back towards the Earth's surface where they are further reflected, thus causing a ducting effect. The result is that radio waves can propagate
Non-line-of-sight_propagation
Imaging technique used in seismology
Herrmann, R. B.; Correig, A. M. (October 2000). "Joint inversion of receiver function and surface wave dispersion observations". Geophysical Journal International
Seismic_tomography
1970 Tonghai and 1973 Luhuo earthquakes, China, from P-wave inversion, and relationship to surface faulting" (PDF). Bulletin of the Seismological Society
List_of_earthquakes_in_China
Visible mass of particles suspended in the atmosphere
where and when these clouds occur, or trap longer wave radiation that reflects up from the Earth's surface which can cause a warming effect. The altitude
Cloud
Scientific study of earthquakes and propagation of elastic waves through a planet
main surface wave types are Rayleigh waves, which have both compressional and shear motions, and Love waves, which are purely shear. Rayleigh waves result
Seismology
parametric chirped pulse amplification [citation needed] PI – population inversion RABBIT or RABBITT – reconstruction of attosecond beating by interference
Laser_acronyms
9.4–9.6 magnitude earthquake in Chile
S.E.; Ward S.N. (1990). "The 1960 Chile earthquake: inversion for slip distribution from surface deformation". Geophysical Journal International. 103
1960_Valdivia_earthquake
Imaging technique using inaudible air blasts
similar to radar's SAR and sonar's SAS, are widely used. Iterative wave equation inversion approaches as imaging method coming from the seismology are under
Ultrasound computer tomography
Ultrasound_computer_tomography
Scientific theory in vertebrate development
(hence somatic twist hypothesis). There is molecular evidence for the inversion hypothesis in almost all groups of deuterostomes. Marcel Kinsbourne's
Axial_twist_theory
Meteorological phenomenon
climbing in continuous lift. When the air has little moisture or when an inversion stops the warm air from rising high enough for the moisture to condense
Lift_(soaring)
EP patent 1910815 . SRAS measures the surface acoustic wave velocity across a specimen, the surface acoustic wave (SAW) velocity is in turn a function
SRAS
Gas layer surrounding Earth
referred to as air) that is retained by gravity, surrounding the Earth's surface. It contains variable quantities of suspended aerosols and particulates
Atmosphere_of_Earth
(see under "Significant events") supercell surface temperature inversion surface weather analysis surface weather observation synoptic scale meteorology
Index_of_meteorology_articles
Examination of the heart's electrical activity
creates the T wave. Ischemia or non-ST elevation myocardial infarctions (non-STEMIs) may manifest as ST depression or inversion of T waves. It may also
Electrocardiography
Imaging Instrument
convolution of the tip and sample surface states will always be important, to the extent of the apparent inversion of the atomic corrugations that may
Scanning_tunneling_microscope
Form of gas laser
specific proportions vary according to the particular laser. The population inversion in the laser is achieved by the following sequence: electron impact excites
Carbon-dioxide_laser
Solid-state electrically operated switch also used as an amplifier
Labs, an insulated-gate FET (IGFET) with an inversion layer. Bardeen's patent, and the concept of an inversion layer, forms the basis of CMOS and DRAM technology
Transistor
Measurement process
in the subsurface rather than the location that it was recorded at the surface, thereby creating a more accurate image of the subsurface. This process
Seismic_migration
1000-km-order method of measuring weather systems
seen on weather maps (such as surface weather analyses) are synoptic-scale systems, driven by the location of Rossby waves in their respective hemisphere
Synoptic_scale_meteorology
concentrated on developing methods to focus seismic models derived from surface wave dispersion information to tectonic scales, particularly in the US and
Michael_H._Ritzwoller
which the planet's surface can be seen. High stratocumuliform Thin scattered wave-cloud resembling cirrocumulus. Low stratocumuliform Wave-cloud resembling
List_of_cloud_types
Momentum-dependent division of spin bands in two-dimensional condensed matter systems
breaking field in the direction perpendicular to the 2D surface. All these systems lack inversion symmetry. A similar effect, known as the Dresselhaus spin
Rashba_effect
Branch of physics that studies light
they pass through or reflect from surfaces. Physical optics is a more comprehensive model of light, which includes wave effects such as diffraction and
Optics
English mathematician
radar metocean inversion methods, measurement campaigns, and validation". Limits to the Inversion of HF Radar Backscatter for Ocean Wave Measurement HF
Lucy_R._Wyatt
Set of imaging methods for determining soft-tissue hardness
ultrafast imaging technique. Using inversion algorithms, the shear elasticity of medium is mapped quantitatively from the wave propagation movie. SSI is the
Elastography
Computer modelling of a petroleum reservoir
needed for complex geology, additional stochastic inversion is then employed. Geostatistical inversion procedures detect and delineate thin reservoirs otherwise
Reservoir_modeling
Second most powerful earthquake in recorded history
far east as Freeport, Texas, where tide gauges recorded waves similar to seismic surface waves. Seiches were detected in wells in countries around the
1964_Alaska_earthquake
Relative peak or lull in the sea level pressure distribution
associated with continental arctic air masses. The low, sharp temperature inversion can lead to areas of persistent stratocumulus or stratus cloud, known
Pressure_system
Description of layer of clouds as viewed from above, resembling waves
over seas in very stable air mass conditions such as in a temperature inversion. Humidity can then reach saturation and condensation leads to a very uniform
Sea_of_clouds
Refractive eye surgery procedure
LASIK Alcohol assisted PRK Transepithelial PRK (TransPRK) ASA (Advanced Surface Ablation) LASEK, which uses Amoils Brush and gas cooling to reduce the
Photorefractive_keratectomy
approximations. Despite the fact that direct matrix inversion methods can be invoked to solve the inversion problem, this will be so costly when the size of
Microwave_imaging
Exploration of subsurface properties with seismology
properties of the rocks at the interface, such as density and wave velocity, by means of seismic inversion. The situation becomes much more complicated in the case
Reflection_seismology
Device that generates controlled seismic energy used for seismic surveys
ISSN 1539-3755. PMID 15169121. Seismic Wave Propagation Modeling and Inversion, Phil Bording [1] Derivation of Seismic wave equation can be found here. [2] Photos
Seismic_source
falling through a temperature inversion in the lower atmosphere, freezes upon impact with the ground or other cold surfaces to form a coat of glaze ice
Glossary_of_meteorology
Misjudgment of true orientation by pilots
seaplanes because the absence of waves hinders accurate judgment of the aircraft's altitude above the water surface on landing. If the pilot overestimates
Sensory_illusions_in_aviation
Roller coaster at SeaWorld San Antonio
coaster is just above the surface of the park's lake to make guests feel as if they are on a mission to rescue an animal. Wave Breaker: The Rescue Coaster
Wave Breaker: The Rescue Coaster
Wave_Breaker:_The_Rescue_Coaster
Infrared laser
well as creating a suitable shock wave. The laser beams must also be focussed evenly across the target's outer surface in order to collapse the fuel into
Shiva_laser
Disaster in Himachal Pradesh, India
Pradesh, in India on 4 April 1905. The earthquake measured 7.8 on the surface-wave magnitude scale and killed more than 20,000 people. Apart from this,
1905_Kangra_earthquake
Area of mathematical analysis
formulation, E g {\displaystyle Eg} is a superposition of plane waves whose frequencies lie on the surface S {\displaystyle S} . The Fourier-analytic aspect of the
Harmonic_analysis
largest amplitude signals are seismic surface waves that reach the antipode after about 100 minutes. The surface waves can be clearly seen to reinforce near
2004 Indian Ocean earthquake and tsunami
2004_Indian_Ocean_earthquake_and_tsunami
Laser which emits light with blue wavelengths
gas lasers are large and expensive instruments relying on population inversion in rare gas mixtures which use high currents and large cooling due to
Blue_laser
Destructive outbreak of 12 tornadoes striking the state of Wisconsin on July 18, 1996
inversion, which made it difficult for convection to break through. Additionally, the effects of daytime heating had not yet weakened the inversion.
1996 Oakfield tornado outbreak
1996_Oakfield_tornado_outbreak
Generic name for a relatively persistent vibration of the ground
arises primarily due to surface or near-surface sources and thus consists mostly of elastic surface waves. Low frequency waves (below 1 Hz) are commonly
Seismic_noise
French geophysicist
non-linear inversion of the slip evolution during a large earthquake and showed the existence of long-range correlations in multiply diffracted seismic wave fields
Michel_Campillo
Separation of electric charge in a molecule
that oppose each other will cancel out. Any molecule with a centre of inversion ("i") or a horizontal mirror plane ("σh") will not possess dipole moments
Chemical_polarity
Surface second harmonic generation is a method for probing interfaces in atomic and molecular systems. In second harmonic generation (SHG), the light
Surface second harmonic generation
Surface_second_harmonic_generation
Device that emites acoustic radiation
which the phonon plays the role of Stokes wave. Stokes wave refers to a non-linear and periodic surface wave on an inviscid fluid (ideal fluid assumed
Sound amplification by stimulated emission of radiation
Sound_amplification_by_stimulated_emission_of_radiation
SURFACE WAVE-INVERSION
SURFACE WAVE-INVERSION
Boy/Male
English
Alert.
Girl/Female
Slavic
Stranger. Pet name formed from Varvara; the Russian form of Barbara.
Surname or Lastname
English
English : topographic name for someone who lived by a dam or weir on a river (Old English wær, wer), or a habitational name from a place named with this word, such as Ware in Hertfordshire.English : nickname for a cautious person, from Middle English war(e) ‘wary’, ‘prudent’ (Old English (ge)wær).English : Robert Ware came to Dedham, MA, from England in or before 1642. Henry Ware (1764–1845), born in Sherborn, MA, was a Unitarian clergyman and theologian and father of the physician John Ware (b. 1795) and two clergymen, Henry (b. 1794) and William (b. 1797).
Boy/Male
Anglo, British, English
Alert; Watchman
Boy/Male
Anglo Saxon English
Wise.
Surname or Lastname
English
English : from a Germanic personal name Walo, either a byname meaning ‘foreigner’ (see Wallace), or else a short form of the various compound names with this first element.English : nickname for a well-liked person, from Middle English wale ‘good’, ‘excellent’ (originally meaning ‘choice’).English : topographic name for someone who lived near an embankment, Middle English wale (Old English walu).
Female
Irish
Variant spelling of Irish Maeve, MAVE means "intoxicating."Â
Girl/Female
Irish
Joy.
Boy/Male
Hebrew American Scottish Welsh
Cherished; Beloved.
Surname or Lastname
English
English : from the Middle English personal name Wade, Old English Wada, from wadan ‘to go’. (Wada was the name of a legendary sea-giant.)English : topographic name for someone who lived near a ford, Old English (ge)wæd (of cognate origin to 1), or a habitational name from a place named with this word, as for example Wade in Suffolk.Dutch and North German : occupational name or nickname from Middle Dutch, Middle Low German wade ‘garment’, ‘large net’.Jonathan Wade emigrated from Norfolk, England, to Medford, MA, in 1632. Benjamin Franklin Wade (1800–1878), born near Springfield, MA, was a prominent U.S. senator from OH during the Civil War.
Boy/Male
Anglo, British, English, Jamaican
Wise; Watchful; Aware; Watchman; Careful
Boy/Male
Hindu
Variant of David beloved
Surname or Lastname
English
English : variant spelling of Way.
Boy/Male
Indian
Part of Sun
Surname or Lastname
English (of Norman origin) and northern French
English (of Norman origin) and northern French : nickname for a bald man, from Anglo-Norman French cauf ‘bald’. Compare Chaffee.English : habitational name from a place in East Yorkshire called Cave, apparently from a river name derived from Old English cÄf ‘swift’.French : metonymic occupational name for someone employed in or in charge of the wine cellars of a great house, from Old French cave ‘cave’, ‘cellar’ (Latin cavea, a derivative of cavus ‘hollow’).French, possibly also English : topographic name for someone who lived in or near a cave, from the same word as in 3 in an older sense.
Surname or Lastname
English
English : occupational name for a servant, from Middle English knave ‘boy’, ‘youth’, ‘servant’.English : possibly a metonymic occupational name for a maker of wheel-hubs, Middle English nave (from Old English nafa, nafu).German (also Näve) : variant of Neff (see Neve).Dutch (de Nave) : variant of Naef 1.In some cases possibly Portuguese : topographic name from nave ‘plain’ (a variant of nava), or a habitational name from a place named with this word. Compare Nava.
Boy/Male
Anglo Saxon American English Scandinavian
Moving.
Surname or Lastname
English (Cumbria and Durham)
English (Cumbria and Durham) : variant spelling of Furness.
Male
English
 English topographical surname transferred to forename use, WADE means "lives near the river crossing." Middle English form of Anglo-Saxon Wada (the name of a sea giant), meaning "to go," in the sense of going forward, proceeding.
Male
English
English short form of Hebrew David, DAVE means "beloved."
SURFACE WAVE-INVERSION
SURFACE WAVE-INVERSION
Boy/Male
Tamil
Pranto | பà¯à®°à®¾à®‚தோ
Boy/Male
Hindu, Indian, Punjabi, Sikh
Source of Energy
Boy/Male
Latin
God of medicine.
Girl/Female
Indian
Wise, Clean
Boy/Male
British, English, Irish
Battle
Female
Hebrew
(×‘Ö¼Ö´×™× Ö¸×”) Hebrew name BINA means "intelligence, wisdom."Â
Biblical
watch-tower
Surname or Lastname
English
English : variant of Redman or Redmond.
Boy/Male
Anglo, Australian, British, English, German, Teutonic
Fortress; From the Buildings Near the Weir; Leader who Defends
Girl/Female
American, Anglo, British, English, Indian
Flower; Girl; Eye of the Day
SURFACE WAVE-INVERSION
SURFACE WAVE-INVERSION
SURFACE WAVE-INVERSION
SURFACE WAVE-INVERSION
SURFACE WAVE-INVERSION
imp. & p. p.
of Wave
v. t.
To give a surface to; especially, to cause to have a smooth or plain surface; to make smooth or plain.
v. i.
Unevenness; inequality of surface.
v. t.
See Waive.
v. i.
To play loosely; to move like a wave, one way and the other; to float; to flutter; to undulate.
imp.
of Weave
v. t.
To raise into inequalities of surface; to give an undulating form a surface to.
n.
A wave.
n.
The exterior part of anything that has length and breadth; one of the limits that bound a solid, esp. the upper face; superficies; the outside; as, the surface of the earth; the surface of a diamond; the surface of the body.
v. t.
To work over the surface or soil of, as ground, in hunting for gold.
v. t.
To move like a wave, or by floating; to waft.
n.
A form of machine for dressing the surface of wood, metal, stone, etc.
n.
A wave.
n.
A magnitude that has length and breadth without thickness; superficies; as, a plane surface; a spherical surface.
v. i.
To fluctuate; to waver; to be in an unsettled state; to vacillate.
a.
Undulating on the border or surface; waved.
a.
Exhibiting a wavelike form or outline; undulating; intended; wavy; as, waved edge.
imp. & p. p.
of Surface