| Summary: | Equations relating the accretion and decay of sea ice to standard meteorological data are derived empirically from observations at Alert, Eureka, Isachsen, Mould Bay, and Resolute, 1947-1957. The differential equations permit calculation of ice growth by increments, and contain a separate term allowing for variations in snow-cover depths. The use of the formulas requires only a knowledge of air temperatures and snow depths. Good correlation is found between decrease in ice thickness and accumulated degree-days above -1.8°C. The stations' locations and names of adjacent water bodies are indicated with the approximate water depths where ice thickness measurements were made. Techniques used in the measurements are described; data on observed ice thickness, accumulated degree-days of frost, and average snow depths for 20-cm increments of ice growth are tabulated.--From CRREL.
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