On 10 August 1983 you will dock near Days...

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Question 1 of 2066636eea28f7522a1c51a9c2

On 10 August 1983 you will dock near Days Point, Weehawken, on the Hudson River, at 1800 DST (ZD +4). The charted depth alongside the pier is 24 feet (7.3 meters). What will be the depth of water when you dock?

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Question 1 of 20

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🔍 Key Concepts

• Tide Tables and Tidal Predictions for New York / Hudson River area • Difference between chart datum and observed/ predicted height of tide • Converting Daylight Saving Time (DST) and using time differences from high/low water to find tidal height

💭 Think About

• How do you find the predicted height of tide at or near 1800 DST on 10 August 1983 for Days Point, using the reference port and any needed corrections? • Once you know the predicted height of tide above chart datum, how do you combine this with the charted depth to get the actual depth of water? • Are you accounting correctly for the time zone (ZD +4) and whether the tide is flooding or ebbing at 1800?

✅ Before You Answer

• Confirm the reference station and the correct subordinate station corrections (time and height) for Days Point or the nearest listed location • Convert 1800 DST to the proper standard time used in the Tide Tables before applying time differences • After finding the tidal height, be sure you add it to the charted depth (if tide is positive above datum) and then compare carefully with the answer choices

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