How do the northeast trade winds bring rain to Asia?
I suppose you are referring to what we otherwise call our winter monsoons. These winds come from the northeast during winter months in the northern hemisphere. The basic driving force is similar to that for the southwest monsoons that we get during summer the winds travel from colder regions to hotter ones. The rain comes because the winds often travel long distances over the sea. In our case, most of the moisture is picked up over Bay of Bengal and the southeast coast of the country gets the most rain at the time. For the east coast of the Asian continent, the winds pick up their moisture over the Pacific Ocean.
