🔍 Key Concepts

• Tide prediction tables for Kingston Point, NY on 23 March 1983 • How to interpolate between high/low water heights and times using the tide curve method • Difference between EST (ZD +5) and GMT, and how it affects the time you read from the table

💭 Think About

• Identify the times and heights of the two tidal events that your +2.0 feet level falls between, then think about how to estimate the exact time between them • Consider whether the value +2.0 feet occurs more than once in the tidal cycle that day and which occurrence is earliest after 1700 • Ask yourself how the shape of the tidal curve (not a straight line) affects your interpolation—are you using the rule of twelfths or a similar method?

✅ Before You Answer

• Confirm that you are using the correct station (Kingston Point, NY) and correct date (23 March 1983) in the tide tables • Verify that the time you obtain is after 1700 EST and not before, and that you have not mixed up AM/PM • Double-check that you have converted any intermediate calculations to clock time that matches one of the answer choices exactly