For 3 November 1983, at 0830 EST (ZD +5) at Catskill, NY, what is the predicted height of tide?
• Use the tide tables for November 3, 1983, for Catskill, NY (not just the reference station) • Convert the time correctly using time zone (ZD +5) and make sure you are using EST, not EDT • Interpolate between the nearest high and low waters to find the height at 0830
• What are the times and heights of the high and low waters that fall immediately before and after 0830 on 3 November 1983 at Catskill? • Is 0830 closer in time to the preceding tide or the following tide, and is the tide rising or falling at that time? • When you apply interpolation (or the tidal curve), does your intermediate height make sense compared to the known high and low heights?
• Confirm you are looking at the correct station (Catskill, NY) and the correct date (3 Nov 1983) • Double-check the time conversion to ensure you are working in the same time base as the tide table listing • Verify your interpolated height is between the surrounding high and low tide heights and has the correct sign (+ or -) before choosing an answer
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