The reason why the natural zone on the northern slope of the Alps is lower than that on the southern slope

The natural zone on the northern slope of the Alps is lower than the southern slope. The reason why the northern slope is affected by the Atlantic water vapor brought by the westerly wind is that it has abundant precipitation and a lot of ice and snow. The snow line is determined by precipitation and temperature. The southern slope has a Mediterranean climate, with hot and dry summers and mild and rainy winters. The northern slope has an oceanic climate, with more rainfall and lower temperatures than in Mediterranean climate areas. Therefore, the snow line on the southern slope is higher than that on the northern slope. Another thing that cannot be ignored is solar radiation. The Alps are in the northern hemisphere, so the solar radiation in the north is definitely less than in the south, and the temperature is lower, so the snow line is lower than the southern slope. The southern slope of the Alps is a leeward slope and a sunny slope. Generally speaking, it is leeward. The snow line of the slope is higher than that of the windward slope, and the snow line of the sunny slope is higher than that of the shady slope.