Question

How the moisture in a maritime polar (mp) air mass that formed over the north pacific ocean would modify as it moved inland over the western coast of north america.?

Answer 1

A maritime polar (mp) air mass that formed over the North Pacific Ocean would experience a decrease in moisture as it moved inland over the western coast of North America due to the rain shadow effect caused by the western mountain ranges.

Step-by-step explanation:

As a maritime polar (mp) air mass moves inland over the western coast of North America, it undergoes certain modifications in terms of moisture content. The air mass, which formed over the North Pacific Ocean, carries a significant amount of moisture due to its origin. However, as it encounters the western mountain ranges such as the Cascades and the Sierra Nevada, it experiences the rain shadow effect. This effect leads to the blocking of moisture and creates a semi-arid condition in the leeward side of the mountains, resulting in less precipitation.

Answer 2

Most of the moisture will be turned to precipitation as a result of condensation of the moisture as it moves on to the land and is lifted to great mountain heights that exist in the west coast. After passing over those heights the air will come down and it will be warmed via compression process. The compression process make the air to be dry.