Perigean spring tide

Perigean spring tide refers to a specific type of tide that occurs when the moon is at its closest point to Earth (known as perigee) and simultaneously coincides with a spring tide. 1. **Spring Tide**: Spring tides occur twice a month, during the full moon and new moon phases, when the Earth's sun, moon, and Earth are aligned. This alignment causes higher high tides and lower low tides, resulting in a greater difference between high and low tides.