Page 211 - PPL-2025-9fag
P. 211
Meteorologi
3.8.5.1 Vandrende lavtryk ................................................................................ 309
3.8.6 Varmfront ................................................................................................. 310
3.8.6.1 Sommervarmfront ............................................................................... 311
3.8.6.2 Vintervarmfront ................................................................................... 311
3.8.7 Koldfront ................................................................................................... 312
3.8.7.1 Aktiv koldfront ..................................................................................... 312
3.8.7.2 Passiv koldfront .................................................................................... 312
3.8.8 Okklusion .................................................................................................. 313
3.8.8.1 Varm okklusion .................................................................................... 313
3.8.8.2 Kold okklusion ..................................................................................... 314
3.9 Flyvesikkerhed ............................................................................................. 315
3.9.1 Signifikant vejr ......................................................................................... 315
3.9.1.1 SIGMET ................................................................................................ 316
3.9.2 Isdannelse ................................................................................................ 319
3.9.2.1 4 hovedformer for is ............................................................................ 320
3.9.2.2 Definitioner på isning ........................................................................... 322
3.9.2.3 Følger af isning ..................................................................................... 322
3.9.2.4 Planlægning i tilfælde af risiko for is .................................................... 324
3.9.3 Karburatoris ............................................................................................ 325
3.9.4 Torden ...................................................................................................... 326
3.9.4.1 Varmetorden ........................................................................................ 328
3.9.4.2 Advektionstorden ................................................................................. 328
3.9.4.3 Orografisk torden ................................................................................. 328
3.9.4.4 Varmfronttorden .................................................................................. 328
3.9.4.5 Koldfronttorden ................................................................................... 329
3.9.4.6 Squall-line ............................................................................................. 329
3.9.4.7 Varsler om torden ................................................................................ 329
3.9.5 Vejrfænomener som følge af torden ...................................................... 330
3.9.5.1 Lyn ........................................................................................................ 330
3.9.5.2 Hagl ...................................................................................................... 330
3.9.5.3 Turbulens i forbindelse med CB-skyer ................................................. 331
3.9.5.4 Gustfront .............................................................................................. 332
3.9.5.5 Microburst ............................................................................................ 332
Flyveteori PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2025 211
