Heat exchange at surface of built-up ice platform during construction
Heat budget observations show that sensible heat loss accounts for most of the latent heat released during freezing of an exposed, shallow-water layer in the high Arctic in January. Combined evaporation and sensible heat losses were about four times larger for this flooding situation than expected i...
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| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
1980
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| Online Access: | https://nrc-publications.canada.ca/eng/view/ft/?id=38961664-8e6b-4f78-9037-3887d6951179 https://nrc-publications.canada.ca/eng/view/object/?id=38961664-8e6b-4f78-9037-3887d6951179 https://nrc-publications.canada.ca/fra/voir/objet/?id=38961664-8e6b-4f78-9037-3887d6951179 |
| Summary: | Heat budget observations show that sensible heat loss accounts for most of the latent heat released during freezing of an exposed, shallow-water layer in the high Arctic in January. Combined evaporation and sensible heat losses were about four times larger for this flooding situation than expected in neutral conditions. Empirical and semi-empirical equations are derived for estimating the components of the heat flux from meteorological parameters. Des observations du bilan thermique montrent que des pertes de chaleur sensible constituent la majeure partie de la chaleur latente libérée durant la congélation d'une couche d'eau peu profonde exposée, en janvier dans le Haut-Arctique. L'évaporation et les pertes de chaleur sensible étaient, ensemble, environ quatre fois supérieures par arrosage à ce qu'elles seraient en situation neutre. On a dérivé des équations empiriques et semi-empiriques pour estimer les composants du flux thermique à partir des paramètres météorologiques. Les équations peuvent servir à estimer le taux d'accumulation de glace optimal à partir des données météorologiques. Peer reviewed: Yes NRC publication: Yes |
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