tropic low-water inequality

The average difference between the heights of the two low waters of the tidal day at the time of tropic tides.

Related terms:

• tropic high-water inequality
• mean diurnal low-water inequality
• low-water inequality
• tropic lower-low-water interval
• mean diurnal high-water inequality
• high-water inequality
• mean low-water springs
• tropic higher-high-water interval
• mean low water
• higher low water