On 6 July 1983, at 1830 DST (ZD +4), what will be the predicted height of tide at Newburgh, NY?
• Using a Tide Table for 1983 and identifying the correct reference station for Newburgh, NY • Converting Daylight Saving Time (DST) with given Zone Description (ZD +4) to the time format used in the tide table • Interpolating tide heights between high and low water and applying subordinate station corrections for Newburgh
• Which reference (standard) port in the tide tables is used for Newburgh, NY, and what are the listed time and height differences for high and low water? • Is 1830 DST before or after the nearest high or low water at the reference station once you convert the time properly, and how far between them is it? • After applying the time and height corrections for Newburgh and interpolating for 1830, which choice most closely matches the corrected height?
• Verify the date and time conversion: 1830 DST with ZD +4 to the clock time used in the table (standard time vs local vs GMT). • Confirm you are using the correct subordinate station page for Newburgh, NY and applying the right sign (+ or –) to time and height corrections. • Carefully interpolate proportionally between the surrounding high/low waters at the reference station before applying the height correction for Newburgh.
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