<P> The semi-diurnal range ( the difference in height between high and low waters over about half a day ) varies in a two - week cycle . Approximately twice a month , around new moon and full moon when the Sun , Moon , and Earth form a line ( a configuration known as a syzygy ) , the tidal force due to the sun reinforces that due to the Moon . The tide 's range is then at its maximum ; this is called the spring tide . It is not named after the season , but , like that word , derives from the meaning `` jump , burst forth , rise '' , as in a natural spring . </P>
<P> The semi-diurnal range ( the difference in height between high and low waters over about half a day ) varies in a two - week cycle . Approximately twice a month , around new moon and full moon when the Sun , Moon , and Earth form a line ( a configuration known as a syzygy ) , the tidal force due to the sun reinforces that due to the Moon . The tide 's range is then at its maximum ; this is called the spring tide . It is not named after the season , but , like that word , derives from the meaning `` jump , burst forth , rise '' , as in a natural spring . </P>
when do spring tides on earth take place
when do spring tides on earth take place
twice a month , around new moon and full moon when the Sun , Moon , and Earth form a line ( a configuration known as a syzygy )
twice a month , around new moon and full moon when the Sun , Moon , and Earth form a line ( a configuration known as a syzygy )