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Meteorologi
Meteorologi
Indholdsfortegnelse Side
3.1 Indledning .................................................................................................. 213
3.2 Atmosfæren, sammensætning og struktur................................................ 214
3.2.1 Troposfæren ............................................................................................ 214
3.2.1.1 Temperatur i Troposfæren ................................................................. 215
3.2.1.2 Temperaturgradient og isometri ......................................................... 216
3.2.2 Stratosfæren ............................................................................................. 216
3.3 Temperatur og tæthed .............................................................................. 217
3.3.1 Årstiderne ................................................................................................. 217
3.3.2 Solens indstråling ..................................................................................... 218
3.3.2.1 Solens indstråling sommer og vinter ................................................... 218
3.3.2.2 Solens indstråling i løbet af et døgn .................................................... 219
3.3.2.3 Daglig temperaturvariation ................................................................. 219
3.3.2.4 Drivhuseffekten ................................................................................... 220
3.3.2.5 Jordoverfladens temperatur ............................................................... 221
3.3.2.6 Temperaturangivelse .......................................................................... 222
3.3.3 Temperaturens afhængighed af højde og luftmasse ............................... 223
3.3.3.1 Tøradiabat og fugtadiabat ................................................................... 224
3.3.3.2 Stabil og ustabil luftmasse .................................................................. 224
3.3.4 Inversion ................................................................................................... 225
3.3.4.1 Bundinversion ..................................................................................... 225
3.3.4.2 Turbulensinversion .............................................................................. 226
3.3.4.3 Subsidiensinversion / højdeinversion ................................................. 226
3.3.4.4 Frontinversion og advektionsinversion ............................................... 226
3.3.4.5 Inversioner stabiliserer vejret ............................................................. 227
3.3.5 Barometer, tryk og isobarer ..................................................................... 228
3.3.5.1 Måling af lufttryk ................................................................................ 228
3.3.5.2 QFE, QFF, QNH .................................................................................... 228
3.3.5.3 Isobarer ............................................................................................... 229
3.3.5.4 Overfladekort ...................................................................................... 229
3.3.5.5 Ryg og trug .......................................................................................... 230
3.3.5.6 Luft kan komprimeres ......................................................................... 230
Flyveteori PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2025 207
