Thermal properties of sea ice. IV. Thermal constants of sea ice PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Thermal properties of sea ice. IV. Thermal constants of sea ice PDF full book. Access full book title Thermal properties of sea ice. IV. Thermal constants of sea ice by Nobuo Ono. Download full books in PDF and EPUB format.
Author: Nobuo Ono
Publisher:
ISBN:
Category : Sea ice
Languages : pl
Pages : 19
Get Book Here
Book Description
Author: Nobuo Ono
Publisher:
ISBN:
Category : Sea ice
Languages : pl
Pages : 19
Get Book Here
Book Description
Author: Yin-Chao Yen
Publisher:
ISBN:
Category : Ice
Languages : en
Pages : 44
Get Book Here
Book Description
Author: Nobuo Ono
Publisher:
ISBN:
Category : Sea ice
Languages : en
Pages : 19
Get Book Here
Book Description
Author: Michael A. Bilello
Publisher:
ISBN:
Category : Atmospheric temperature
Languages : en
Pages : 20
Get Book Here
Book Description
Sea-ice surface temperatures observed at Eureka, N.W.T., Canada, during 1949-50 and 1950-51 were used to compute the numerical value of the expression k/L rho, where k = thermal conductivity, L = latent heat of fusion and rho = density. The numerical value for these combined physical properties of sea ice was found to increase from approximately 0.000047 to 0.00007 during ice growth (between 6 November and 22 December) from 0.6 to 1 m thickness. During the increase from 1.1 to 1.3 m (between 20 January and 10 February) the value of k/L rho ranged from 0.00007 to 0.00008 and then decreased slightly during the rest of the growth period. These variations in the value of k/L rho throughout the winter season were considered as changes in the effective conductivity caused by physical changes and distribution of brine in the sea ice. Since no observations on sea-ice salinity were made at Eureka, it was not possible to investigate the effect of the physical properties separately. A study on the relation between sea-ice accretion and temperature gradient disclosed a correlation coefficient of r = 0.73. (Author).
Author: A. Assur
Publisher:
ISBN:
Category : Ice crystals
Languages : en
Pages : 34
Get Book Here
Book Description
Author: Yin-Chao Yen
Publisher:
ISBN:
Category :
Languages : en
Pages : 35
Get Book Here
Book Description
This treatise thoroughly reviews the subjects of density, thermal expansion and compressibility of ice; snow density change attributed to destructive, constructive and melt metamorphism; and the physics of regelation and the effects on penetration rate of both the thermal properties of the wire and stress level. Heat capacity, latent heat of fusion and thermal conductivity of ice and snow over a wide range of temperatures were analyzed with regression techniques. In the case of snow, the effect of density was also evaluated. The contribution of vapor diffusion to heat transfer through snow under both natural and forced convective conditions was assessed. Expressions representing specific and latent heat of sea ice in terms of sea ice salinity and temperature were given. Theoretical models were given that can predict the thermal conductivities of fresh bubbly ice and sea ice in terms of salinity, temperature and fractional air content. (Author).
Author: W. F. Weeks
Publisher:
ISBN:
Category : Ice mechanics
Languages : en
Pages : 100
Get Book Here
Book Description
The review discusses the state of thinking of each of the main national groups investigating sea ice and gives an overall appraisal of the field as a whole. Emphasis is placed on (1) the physical basis for interpreting sea ice strength (phase relations, air volume, and structural considerations), (2) theoretical considerations (strength models, air bubbles and salt reinforcement, and interrelations between growth conditions and strength), (3) experimental results (tensile, flexural, shear, and compressive strength, elastic modulus, shear modulus and Poisson's ratio, time dependent effects, and creep), and (4) plate characteristics. The paper includes a review of problems in sea ice investigations, relates the chemical, crystallographic, mechanical, and physical aspects involved, and concludes by showing how to utilize this knowledge to solve practical problems. (Author).
Author: A. Assur
Publisher:
ISBN:
Category : Salt
Languages : en
Pages : 68
Get Book Here
Book Description
Part of the salts contained in sea water are trapped in sea ice upon freezing. They form liquid and solid inclusions in a systematic pattern. The amount depends upon temperature and salinity. A detailed table of phase relations is given and a general theory is derived to show how the internal cavities may affect the strength of sea ice. The general theory leads to specific models. The principle of ring tensile strength tests is explained and a series for evaluation is given. Test data lead to a substantiation of theoretical principles and to an illustration of several hypotheses concerning the effect of solid salt inclusions upon strength. Observed sea ice phenomena are explained on the basis of internal structure. (Author).
Author: Duwayne Marlo Anderson
Publisher:
ISBN:
Category : Sea ice
Languages : en
Pages : 32
Get Book Here
Book Description
Computations are presented which show that the latent heat of freezing ice in equilibrium with sea water is less than that associated with freezing pure water at 0C. The difference is due primarily to a temperature effect that is opposed to some extent by the effect of dissolved substances in the brine. The difference probably amounts to about 7 cal/gm of ice for a brine of about 150 o/oo slinity, freezing at -8C. When the effect of this difference in the total heat required to raise the temperature and melt sea ice is computed by Schwerdtfeger's method, it is found to be of the order of 0.5 cal/gm of sea ice for an overall ice salinity of 8 o/oo and an initial temperature of -8C. The differences are small but significant and until true values are established, published values of heats of freezing and melting and specific heats of sea ice should be used with discretion. (Author).
Author: W. F. Weeks
Publisher:
ISBN:
Category : International Conference on Education
Languages : en
Pages : 28
Get Book Here
Book Description
Information and test results are presented concerning the mechanism of growth, brine content, strength, structure, and dielectric properties of sea ice. Suggestions are given for improving methods of calculating growth conditions and a schematic drawing is given of the solid-liquid interface for sea ice together with photomicrographs of sea ice at low temperatures. (Author).
