dieser text dient der navigation austro control flying in the alps products for general aviation...

DIESER TEXT DIENT DER NAVIGATION

AUSTRO CONTROL

FLYING IN THE ALPSPRODUCTS FOR GENERAL AVIATION

Erstellt durch: Andreas PfoserVersion: 1.0Datum: 18. März 2010Datei: schoenhagen.ppt

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PRODUCTS PREPARED FOR ALL PARTS OF GENERAL AVIATION (IFR light, VFR, Gliding/Hanggliding/Paragliding, Ballooning)

– GAMET SECN I (abbreviated plain language)

– GAMET SECN II (chart form)

charts SIGWX phenomena („low-level significant weather chart“)

charts upper W / upper-air T

charts QNH / Foehn potential

ADDITIONAL PRODUCTS (SPECIALIZED FORECASTS)

– GAFOR (visibility / cloud base categories; route segments)

– ALPTHERM (atmospheric convection over complex topography)

– BALLONMET (specific information for ballooning flights)

– TEXT BULLETINS (overview forecasts in german language)

MODULAR CONCEPT

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GAMET SECN I (IFR light, VFR, Gliding/Hanggliding/Paragliding, Ballooning)

Content:

– Information on en-route weather phenomena hazardous to low-level flights up to FL 200

– Information of meteorological conditions which could adversely affect general aviation airfields

Area of interest:

FIR Wien divided into three sub-areas (climatological aspects)

MODULAR CONCEPT

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Times of Issue / Validity Periods:

– 4 times per day, every 4 hours

– Forecasts are disseminated one hour prior to the beginning of validity period

– issue 05 lct: validity period 06/12 lct




– during the night (23/06 lct) density of traffic operating at low levels is not sufficient to warrant the issuance of GAMET information

MODULAR CONCEPT

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Phenomena included in GAMET SECN I:– SFC WSPD widespread surface gusts > 30 kt (below 3000 ft amsl)– SFC VIS widespread surface visibility < 5 km (below 3000 ft amsl)– SIGWX isol-frq/obsc/embd/sql TS/TSGR; hvy DS/SS; VA– MT OBSC widespread mountain obscuration

I. frontal system / low-pressure-area / upper-level-trough

II. ST obscuring pre-alps mt passes or small peaks inside basins

III. ovc CU along ridges, base blw peaks / IV. orographic clouds

– SIG CLD isol-sql CB/TCU or widespread low stratus < 1500 ft agl– ICE mod or sev (except for occurring in convective clouds) – TURB mod or sev (except for occurring in convective clouds)– MTW mod or sev downdrafts due to mountain waves

MODULAR CONCEPT

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Examples:

MODULAR CONCEPT

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GAMET SECN II (IFR light, VFR, Gliding/Hanggliding/Paragliding, Ballooning)

Set of Fixed Time Forecast Charts:

– Forecasts of Upper Wind and Upper-Air Temperature

– Forecasts of SIGWX phenomena

– special chart „Foehn potential“

MODULAR CONCEPT

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SIGWX phenomena LLSWC („ALPFOR AUSTRIA“):

– covers layer between GND and FL200

– issue 05 lct: charts 08 lct + 12 lct + outlook 16 lct



– issue 17 lct: chart 20 lct + outlook 24 lct

– issue 21 lct: chart tomorrow 08 lct + outlook 12 lct

– pressure centres, fronts

– cloud information, precipitation, vis-reducing phenomena

– surface visibility, surface wind

– weather phenomena hazardous to low-level flights en-route

MODULAR CONCEPT

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MODULAR CONCEPT

CBtops FL390

TCUtops FL220

height of base and top layer

amount:FEW 1/8-2/8SCT 3/8-4/8BKN 5/8-7/8OVC 8/8

characteristics:CONS continuousLYR layeredEMBD embedded

types:CU, SC, ST, NS, AS, AC, AC LEN

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MODULAR CONCEPT

types of icing:OPA rime type of ice formationCLA clear type of ice formationMX mixed type of ice formation

types of turbulence:LLVL low levelRDGE ridgeLEE leewardCAT clear air turbulence

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ALPFOR AUSTRIA Examples:

MODULAR CONCEPT

winter weather in the eastern alps

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ALPFOR AUSTRIA Examples:

MODULAR CONCEPT

foehn and thunderstorms in the eastern alps

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Upper Wind and Upper-Air Temperature / Freezing-Level:

issue 11-12 lct:

17 charts „barbs“ for 48hr in advance

17 charts „tabular“ for 48hr in advance

MODULAR CONCEPT

issue 23-24 lct:17 charts „barbs“ for 48hr in advance17 charts „tabular“ for 48hr in advance

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Forecast QNH („FOEHN-Potential“):

issue 11-12 lct / 23-24 lct:

17 charts „barbs“ for 48hr in advance

17 charts „tabular“ for 48hr in advance

MODULAR CONCEPT

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GAFOR (VFR)

Content:

– Forecasts of visibility / cloud base categories O, D, M, X for well-defined route segments (published in the AIP)

– routes are „adverse weather routes“

– cloud base information refers to reference heights (mountain passes)

Times of Issue / Validity Periods:

– 3 to 4 times per day, every 3 hours




– issue 1630 lct: validity period 17/23 lct (only during spring and summer)

MODULAR CONCEPT

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GAFOR (VFR)

Content:

– 3 time-segments of 2 hours

additional information:

weather phenomena, which are

expected to cause the adverse

visibility / cloud base conditions

– TS

– SN

– RA (mod or hvy)

– SHSN

– SHRA (mod or hvy)

– LC

– FG

– BR

MODULAR CONCEPT

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GAFOR (VFR)

Examples:

MODULAR CONCEPT

mountainous effects:windward side snowingleeward side flying

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ALPTHERM (Gliding/Hanggliding/Paragliding)

„a model for atmospheric convection over complex topography“

– mountainous characteristics: valley volume effect, area/height-distributions, elevated convection, various albedo, mountain-valley wind systems

– initialization with model profiles and local surface observations

– coupled with high-resolution mesoscale modell

MODULAR CONCEPT

- 31 regions (climatological aspects)

- 2-day-forecasts

- 3 updates in the morning- 1 update in the late afternoon

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Content:

– quality of thermals (based on forecast PFD)

– strength of thermals (mean climb rates)

– onset of thermals

– height of the thermal updraughts

– possible updraughts for ridge soaring

MODULAR CONCEPT

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Content:

MODULAR CONCEPT

time-altitude cross sections of- predicted climb rates- depth of the CBL- possible ridge soaring updraughts

diurnal evolution of- cumulus clouds (base and tops)- stratiform clouds (low, middle, high

levels cloud amount)- hazards (thunderstorms, rain/snow,

turbulences)

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BALLONMET (Ballooning)

Content:

– clouds, moisture

– surface wind and detailled upper wind

– turbulences, inversion layer

– precipitation

– surface temperature

MODULAR CONCEPT

common ballooning sites

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BALLONMET (Ballooning)

Content:

hazards:

– thunderstorms, convective showers

– thermals

– strong surface gusts

– fog

MODULAR CONCEPT

common ballooning sites

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ADDITIONAL MATERIAL (IFR light, VFR, Gliding/Hanggliding/Paragliding, Ballooning)

MODULAR CONCEPT

DIESER TEXT DIENT DER NAVIGATION

AUSTRO CONTROLi

FLYING IN THE ALPSPRODUCTS FOR GENERAL AVIATION

THANKTHANK YOUYOU ALLALL FORFOR LISTENINGLISTENING !!!!

Erstellt durch: Andreas PfoserVersion: 1.0Datum: 18. März 2010Datei: schoenhagen.ppt

[email protected]

dieser text dient der navigation austro control flying in the alps products for general aviation...

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