JET STREAM (METEOROLOGY); GEMÄSSIGTES KLIMA (KLIMATOLOGIE); ALLGEMEINE ZIRKULATION DER ATMOSPHÄRE (METEOROLOGIE); TEMPERATE CLIMATE (CLIMATOLOGY); GENERAL CIRCULATION OF THE ATMOSPHERE (METEOROLOGY); METEOROLOGISCHE MODELLE; ZIRKULATIONSFORMEN, WETTERVORHERSAGE (METEOROLOGIE); STRAHLSTROM (METEOROLOGIE); METEOROLOGICAL MODELS; TROPICS (CLIMATIC ZONES); CIRCULATION PATTERNS, WEATHER FORECASTING (METEOROLOGY); TROPEN (KLIMAZONEN)