What is up welling?

Answer 1

Upwelling is a process in oceanography where deep, cold, and nutrient-rich waters rise to the surface, typically along Coastlines. This phenomenon occurs when winds blow across the ocean surface, pushing warmer surface waters away and allowing deeper waters to replace them. Upwelling is crucial for marine ecosystems as it supports high primary productivity, leading to rich fishing grounds. It plays a significant role in regulating ocean temperature and nutrient distribution.