ANN's Daily Aero-Term (05.07.12): Anomalous Propagation | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

** Airborne 12.17.14 ** HD iPad-Friendly -- Airborne 12.17.14 **
** Airborne 12.15.14 ** HD iPad-Friendly -- Airborne 12.15.14 **
** Airborne 12.12.14 ** HD iPad-Friendly -- Airborne 12.12.14 **

Mon, May 07, 2012

ANN's Daily Aero-Term (05.07.12): Anomalous Propagation

Aero-Terms!

Aero-Terms are designed to be a daily reminder of the terms, names, acronyms and explanations of the unique language that populates the aviation world. Aerospace, sport aviation, fixed wing, helo, you name it... it's all fair game.

Aero-Terms should serve as a quick but intriguing reminder of the terms you may use every day, or an introduction to an aspects of the Aero-World you may not yet be familiar with. ANN also encourages readers to go beyond the FMI link, and further research any intriguing terms.

Suggestions for future Aero-Terms are ALWAYS welcome, as are additions or discussion of the explanations given for each Aero-Term.

Anomalous Propagation

Non-standard atmospheric temperature or moisture gradients will cause all or part of the radar beam to propagate along a non-normal path. When non-standard index-of-refraction distributions prevail, "abnormal" or "anomalous" propagation occurs. When abnormal downward bending occurs, it is called "superrefraction." If the beam is refracted downward sufficiently, it will illuminate the ground and return signals to the radar from distances further than is normally associated with ground targets. The term "subrefraction" is applied when there is abnormal upward bending of the radar beam.

FMI: www.weather.gov

Advertisement

More News

Dassault Aviation Reveals First Falcon 8X

Next Step: Maiden Flight In First Quarter 2015 Dassault Aviation on Wednesday rolled back the curtains on the ultra long range Falcon 8X, the company's new flagship and the latest >[...]

Evergreen Museum Says Its 'Business As Usual'

Some Of Its Aircraft Are On Loan From Company Reorganizing Under Bankruptcy Laws The Evergreen Aviation and Space Museum in McMinnville, OR says that it is doing just fine, thank y>[...]

Airborne 12.15.14: A380 Future, More USA Today Disappointments, Jetman FORMATION

Also: Comet Water Differences, Garmin Datalink, Bogert Battery Boxes, WSI/iOs, Mistletoe Copter Fail Airbus hasn't seen a single airline order for its double-decker A380 superjumbo>[...]

NTSB Prelim Released From Gaithersburg, MD Phenom Accident

Six Fatally Injured When Plane Impacted A Home The NTSB had released its preliminary report from an accident which occurred December 8, 2014 involving an Embraer EMB-500 Phenom 100>[...]

Airborne 12.17.14: Evergreen Woes, Foolish Pilot Tricks, No 757 Replacement--Yet

Also: $1M Aero-Photo, Draken Gets A-4s, 'Super Dell' Acts Super Dumb, Legendary Bell 47, Osprey Hours Evergreen Vintage Aircraft, LLC, the company that owns many of the aircraft on>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2014 Web Development & Design by Pauli Systems, LC