Why is there so much desert in New Mexico, USA?

The reasons are:

1. The subtropical area on the west coast of the mainland roughly ranges from the Tropic of Cancer to 30° north latitude, which is easily controlled by the subtropical high and the northeast trade wind belt

The prevailing subsidence airflow of the subtropical high is not likely to cause precipitation. The northeast trade wind wind comes from the eastern land and has low water vapor content, so it is not easy to cause precipitation.

The temperature is high and the precipitation is low, so large deserts are formed

2. The influence of the California cold current in the nearby sea area, which reduces temperature and humidity, affects the nearby coastal areas, exacerbating the scope and degree of drought of the tropical desert climate zone in this area

Making the desert Extending to the Tropic of Cancer - a wider range of 30° north latitude, the coastal areas of the southwestern United States south of the Tropic of Cancer also develop a tropical desert climate

3 Topographic factors, the Mexican Plateau, The Rocky Mountains block the flow of moist air from the Gulf of Mexico