How do topography, air pressure and sunshine affect the climate in Hunan?

The latitude of Hunan Province is relatively low, the terrain of Dongting Lake Plain is relatively low, and the terrain of mountainous areas is relatively high. Although Hunan Province is located inland, it is not particularly far from the ocean and can be influenced by the ocean summer monsoon. Influenced by latitude and land and sea location, Hunan Province has formed a typical subtropical monsoon climate. Summer is hot and rainy, and winter is warm and dry. The influence of topography on Hunan climate is not obvious.