Estimation of iceberg draft

Previous studies to correlate iceberg draft with its above water dimensions are reviewed. Their findings are tested using data on measurements of over 200 icebergs. The correlation between the draft and the length, width, height and mass of each of these icebergs is presented. The analysis indicated that the upper limit of iceberg draft is its length, 1.5 times its width, or 10.5 times it height. The lower limit was 0.25 its length, 0.4 its width, or its height. A simple empirical expression to relate the height of an iceberg to its draft/height ratio for each type of iceberg was obtained, based on the measured data. The expected error involved in estimating iceberg draft using the empirical expressions and the degree of confidence in the estimated value are evaluated.