Accession Number : AD0720181

Title :   Short-Term Forecasts of Ice Formation and Breakup in Rivers (Kratkosrochnye Prognozy Zamerzaniya i Vskrytiya Rek),

Corporate Author : NAVAL OCEANOGRAPHIC OFFICE WASHINGTON D C

Personal Author(s) : Popov,E. G.

Report Date : 1963

Pagination or Media Count : 46

Abstract : Because the formation and breakup of ice in rivers, as well as the duration and thickness of ice, depend mainly on climatic and weather conditions in a given area, the short-term forecasting of the phenomena is based on data gathered by weather observation stations. The main factors determining the thermal exchange of water in rivers, its general and specific trends and the prospects of their calculation are analyzed. Formulas characterizing the relationship between the water and air temperature, the significance of latent heat at freezing and melting, the quantity of heat in water, the velocity and direction of flow and other aspects affecting the formation, duration and breakup of ice are derived. (Author)

Descriptors :   (*MELTING, PREDICTIONS), (*ICE, MELTING), (*RIVERS, ICE), GROWTH(PHYSIOLOGY), THICKNESS, FAILURE(MECHANICS), ATMOSPHERIC TEMPERATURE, PROBABILITY, FREEZING, NUMERICAL ANALYSIS, USSR

Subject Categories : Snow, Ice and Permafrost

Distribution Statement : APPROVED FOR PUBLIC RELEASE