meteorological hazards in aviation cpt. ing. naděžda bartoov ph.d
DESCRIPTION
1. DEFINITION METEOROLOGICAL HAZARDS IN AVIATION are the phenomena, that can affect the safety of the flight.TRANSCRIPT
![Page 1: METEOROLOGICAL HAZARDS IN AVIATION Cpt. Ing. Naděžda Bartoov Ph.D](https://reader035.vdocument.in/reader035/viewer/2022062907/5a4d1b877f8b9ab0599bceac/html5/thumbnails/1.jpg)
.
METEOROLOGICAL HAZARDS IN AVIATION
Cpt. Ing. Naděžda Bartošová Ph.D.
![Page 2: METEOROLOGICAL HAZARDS IN AVIATION Cpt. Ing. Naděžda Bartoov Ph.D](https://reader035.vdocument.in/reader035/viewer/2022062907/5a4d1b877f8b9ab0599bceac/html5/thumbnails/2.jpg)
1. DEFINITIONS
2. TYPES OF METEOROLOGICAL HAZARDS
3. KEY WORDS
![Page 3: METEOROLOGICAL HAZARDS IN AVIATION Cpt. Ing. Naděžda Bartoov Ph.D](https://reader035.vdocument.in/reader035/viewer/2022062907/5a4d1b877f8b9ab0599bceac/html5/thumbnails/3.jpg)
1. DEFINITION
METEOROLOGICAL HAZARDS IN AVIATION are the phenomena, that can affect the safety of the flight.
![Page 4: METEOROLOGICAL HAZARDS IN AVIATION Cpt. Ing. Naděžda Bartoov Ph.D](https://reader035.vdocument.in/reader035/viewer/2022062907/5a4d1b877f8b9ab0599bceac/html5/thumbnails/4.jpg)
2. TYPES OF METEOROLOGICAL HAZARDS
FOG
ICING
TURBULENCE
THUNDERSTORM
![Page 5: METEOROLOGICAL HAZARDS IN AVIATION Cpt. Ing. Naděžda Bartoov Ph.D](https://reader035.vdocument.in/reader035/viewer/2022062907/5a4d1b877f8b9ab0599bceac/html5/thumbnails/5.jpg)
FOG
● Visibility is reduced under 1 km
● Types:
radiation fog (in the morning, local character)
advection fog (huge, with the drizzle)
frontal fog (moving with the frontal system)
![Page 6: METEOROLOGICAL HAZARDS IN AVIATION Cpt. Ing. Naděžda Bartoov Ph.D](https://reader035.vdocument.in/reader035/viewer/2022062907/5a4d1b877f8b9ab0599bceac/html5/thumbnails/6.jpg)
ICING
● ICING IS NOT caused by ice in cloud, is caused by SUPER - COOLED liquid water droplets.
● ICING FACTORS:
- LWC
- Temperature (0 ;– 20)
- Droplet size
- Cloud type
- Airfoil geometry
- Airspeed
- Duration of exposure
![Page 7: METEOROLOGICAL HAZARDS IN AVIATION Cpt. Ing. Naděžda Bartoov Ph.D](https://reader035.vdocument.in/reader035/viewer/2022062907/5a4d1b877f8b9ab0599bceac/html5/thumbnails/7.jpg)
ICING
● LUQIUD WATER CONTENT :
- is amout of available water,
- varies from cloud to cloud,
- depends on temperature
![Page 8: METEOROLOGICAL HAZARDS IN AVIATION Cpt. Ing. Naděžda Bartoov Ph.D](https://reader035.vdocument.in/reader035/viewer/2022062907/5a4d1b877f8b9ab0599bceac/html5/thumbnails/8.jpg)
ICING
● CUMULATIVE AFFECTS OF ICING:
Decreases
Thrust
Radio communication problems , Blockage of pitot tubes and static vents ,
Adverse Aerodynamic Effects .
![Page 9: METEOROLOGICAL HAZARDS IN AVIATION Cpt. Ing. Naděžda Bartoov Ph.D](https://reader035.vdocument.in/reader035/viewer/2022062907/5a4d1b877f8b9ab0599bceac/html5/thumbnails/9.jpg)
ICING TYPES
● Clear icing
- is often clear and smooth,
- Supercooled water droplets, or freezing rain, strike a surface but do not freeze
instantly.
● Rime icing
- is rough and opaque,
- formed by supercooled drops rapidly freezing on impact.
● Mixed icing is a combination of clear and rime ice.
● Frost icing is the result of water freezing on unprotected surfaces while the aircraft is stationary.
● SLD icing
- Supercooled Large Droplet (SLD) conditions,
- similar to clear ice.
![Page 10: METEOROLOGICAL HAZARDS IN AVIATION Cpt. Ing. Naděžda Bartoov Ph.D](https://reader035.vdocument.in/reader035/viewer/2022062907/5a4d1b877f8b9ab0599bceac/html5/thumbnails/10.jpg)
ICING PREVENTION
● Mechanical means, which may be as simple as using a broom or brush to
remove snow
● Application of Deicing fluid
● Use of infrared heating to melt and remove contaminants
● Put the aircraft into a heated hangar until snow and ice have melted
● Position aircraft towards the sun
![Page 11: METEOROLOGICAL HAZARDS IN AVIATION Cpt. Ing. Naděžda Bartoov Ph.D](https://reader035.vdocument.in/reader035/viewer/2022062907/5a4d1b877f8b9ab0599bceac/html5/thumbnails/11.jpg)
TURBULENCE
Def: Turbulence can be defined as small-scale, short-term, random and
frequent changes to the velocity of air
TYPES:
● Light, moderate, severe, extreme
● THERMAL
above a warm surface
● MECHANICAL
caused by interference of surface features on the horizontal flow of air
● SHEAR
wind changes dramatically within a short horizontal or vertical distance
● AERODYNAMIC
caused by an aircraft as it flys through the air (wake turbulence)
![Page 12: METEOROLOGICAL HAZARDS IN AVIATION Cpt. Ing. Naděžda Bartoov Ph.D](https://reader035.vdocument.in/reader035/viewer/2022062907/5a4d1b877f8b9ab0599bceac/html5/thumbnails/12.jpg)
TURBULENCE
THERMAL MECHANICAL SHEAR
![Page 13: METEOROLOGICAL HAZARDS IN AVIATION Cpt. Ing. Naděžda Bartoov Ph.D](https://reader035.vdocument.in/reader035/viewer/2022062907/5a4d1b877f8b9ab0599bceac/html5/thumbnails/13.jpg)
THUNDERSTORMDEF:
● a storm caused by strong rising air currents and characterized by thunder and lightning and usually heavy rain or hail.
● formed by a process called convection, defined as the
transport of heat energy
TYPES: frontal
non – frontal
HAZARDS:
● severe turbulence,
● low level windshear,
● low ceilings and visibilities,
● hail and lightning
![Page 14: METEOROLOGICAL HAZARDS IN AVIATION Cpt. Ing. Naděžda Bartoov Ph.D](https://reader035.vdocument.in/reader035/viewer/2022062907/5a4d1b877f8b9ab0599bceac/html5/thumbnails/14.jpg)
THUNDERSTORM
3 STAGES:
Towering Cumulus Stage:
- visible clouds of liquid water,
- upward motion throughout the cloud,
- turbulence and icing.
Mature Stage:
- production of precipitation,
- updrafts /downdrafts motion,
- turbulence, lightning, icing, microburst.
Dissipating Stage:
- final stage,
- downdrafts,
- moderate precipitation.
![Page 15: METEOROLOGICAL HAZARDS IN AVIATION Cpt. Ing. Naděžda Bartoov Ph.D](https://reader035.vdocument.in/reader035/viewer/2022062907/5a4d1b877f8b9ab0599bceac/html5/thumbnails/15.jpg)
THUNDERSTORM
STRUCTURE:
Single cell
Multi cell
Super cell
![Page 16: METEOROLOGICAL HAZARDS IN AVIATION Cpt. Ing. Naděžda Bartoov Ph.D](https://reader035.vdocument.in/reader035/viewer/2022062907/5a4d1b877f8b9ab0599bceac/html5/thumbnails/16.jpg)
THUNDERSTORM
HAZARDS:
severe turbulence,
low level windshear,
low ceilings and visibilities,
hail and lightning
![Page 17: METEOROLOGICAL HAZARDS IN AVIATION Cpt. Ing. Naděžda Bartoov Ph.D](https://reader035.vdocument.in/reader035/viewer/2022062907/5a4d1b877f8b9ab0599bceac/html5/thumbnails/17.jpg)
KEY WORDS
FOG - radiation/frontal/advection fog
ICING – clear/rime/mixed icing
TURBULENCE – light/moderate/severe/extreme
THUNDERSTORM - single/multi/super cell
![Page 18: METEOROLOGICAL HAZARDS IN AVIATION Cpt. Ing. Naděžda Bartoov Ph.D](https://reader035.vdocument.in/reader035/viewer/2022062907/5a4d1b877f8b9ab0599bceac/html5/thumbnails/18.jpg)
THANK YOU FOR YOUR ATTENTION !