introduction to radar meteorology
TRANSCRIPT
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February 15, 2006 Hanne Murphey
Introduction to RadarMeteorology
AOS-C110
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S-POL 10 cm radar
ELDORA 3cm radar
Doppler On Wheels (DOW) 3 cm radar
Types of radars
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Second Trip EchoesSecond Trip Echoes
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Different WeatherDifferent Weather
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Types of Displays: PPI
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Hook echo associated with a super cell
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Doppler on Wheels (DOW)Doppler on Wheels (DOW)
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Bright Band & S-shaped veering windsBright Band & S-shaped veering winds
Bright bands are an artifact of theradar. Occurs at the melting level.
S-Shaped velocity pattern withheight. Indicates veering winds orwarm air advection.
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Clear Air Return with developing storms
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Single Doppler VelocitySingle Doppler Velocity
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Single Doppler Velocity
Courtesy Nolan Atkins
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Speed ShearSpeed Shear
Shear LineShear Line
Brown and Wood JAOT 1986Brown and Wood JAOT 1986
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Dryline Dryline and Cold Frontand Cold Front
Murphey et al. 2006
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Example of a shear zoneExample of a shear zone
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ConvergentConvergentFlowFlow
DivergentDivergentFlowFlow
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Veering Winds:Veering Winds: ““S-shapedS-shaped””
Warm AirWarm Airadvectionadvection
Backing Winds:Backing Winds: ““BackwardsBackwardsS-shapedS-shaped””
Cold AirCold Air advectionadvection
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Bright Band & S-shaped veering windsBright Band & S-shaped veering winds
Bright bands are an artifact of theradar. Occurs at the melting level.
S-Shaped velocity pattern withheight. Indicates veering winds orwarm air advection.
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Veering andVeering and Backing WindsBacking Winds
Veering WindsVeering Winds
Backing WindsBacking Winds
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Note: Radar is located to the south in both imagesNote: Radar is located to the south in both images
DivergentDivergentWindsWinds
Example:Example:downdraftsdowndrafts
RotationRotationSignatureSignature
Example:Example:tornadotornado
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Hook echo associated with a super cell
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Folded Velocities:Folded Velocities:
v > v > vvunambiguousunambiguous
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