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Space Weather Advisories (SWX ADVISORY)

The ICAO Manual on Space Weather Information in Support of International Air Navigation (ICAO DOC 10100), describes the hazards of space-weather as follows:  HF communicationsHF radio blackout (absorption)Compressed HF bandwidth (depression) Satellite communicationsIonospheric scintillation GNSS-based navigation and surveillancePositioning errors (ionospheric delay)GNSS loss of lock (scintillation*) Elevated radiation dose rates on polar flightsA 2100 m decrease…
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23 avril 2022 0

VOLCANO ACTIVITY NOTIFICATION

Here is the daily volcano activity observed by Alaska Volcano Observatory (Tuesday, April 19, 2022). Look at our “Volcanic Ash Encounter” E-Learning module for details.


21 avril 2022 0

COLD WEATHER OPERATION B737NG ANTI-ICE OPERATION

Icing conditions exist when OAT (on the ground) or TAT (in flight) is 10°C or below and any of the following exist: visible moisture (clouds, fog with visibility of one statute mile (1600m) or less, rain, snow, sleet, ice crystals, and so on) is present, or ice, snow, slush or standing water is present on…
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29 janvier 2022 0

COLD TEMPERATURE COMPENSATION

Baro instruments are calibrated using the International Standard Atmosphere (ISA) model. The effects on measured altitude of a significantly colder vertical temperature laps, colder than ISA, can be dangerous when not accounted for. For RNP APCH operations to LNAV/VNAV minima using Baro VNAV: (A) The flight crew should not commence the approach when the aerodrome…
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29 janvier 2022 0
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