Which datum is used for soundings on charts...

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Question 1 of 2066636ee928f7522a1c519505

Which datum is used for soundings on charts of the East Coast of the United States?

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Question 1 of 20

66636ee928f7522a1c519505

Which datum is used for soundings on charts of the East Coast of the United States?

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🔍 Key Concepts

• Chart sounding datum on U.S. coastal charts • The difference between mean low water, mean lower low water, and mean low water springs • How NOAA and U.S. charts standardize vertical datums along the U.S. coastline

💭 Think About

• Ask yourself: Which tidal level gives mariners the most conservative (safest) water depth for navigation on East Coast charts? • Consider which of these datums is commonly used by NOAA for U.S. coastal charts, especially in areas with a mixed or semidiurnal tide. • Think about which option is used consistently along most of the U.S. Pacific and Atlantic coasts as the chart sounding datum.

✅ Before You Answer

• Look up how NOAA defines the chart datum for soundings along the U.S. East Coast in its tidal datums publications. • Verify which of these tidal levels is defined as the average of the lower low waters over a 19-year period. • Confirm that the correct datum is the one that is standard for U.S. coastal charts, not a special case like springs or half tide.

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Question 1 of 2066636ee928f7522a1c519505

Which datum is used for soundings on charts of the East Coast of the United States?

Back

Question 1 of 20

66636ee928f7522a1c519505

Which datum is used for soundings on charts of the East Coast of the United States?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

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