The Influence of Cloudiness on The Net Radiation Balance of A Snow Surface with High Albedo
The short-wave and long-wave radiant fluxes measured in the accumulation area of the Greenland ice sheet during a mid-summer period are discussed with respect to their dependence on cloudiness. At a cloudiness of 10/10, a mean value of 270 J/cm 2 d is obtained for the daily totals of net radiation b...
| Published in: | Journal of Glaciology |
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| Main Author: | |
| Format: | Article in Journal/Newspaper |
| Language: | English |
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Cambridge University Press (CUP)
1974
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1017/s0022143000023388 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000023388 |
| Summary: | The short-wave and long-wave radiant fluxes measured in the accumulation area of the Greenland ice sheet during a mid-summer period are discussed with respect to their dependence on cloudiness. At a cloudiness of 10/10, a mean value of 270 J/cm 2 d is obtained for the daily totals of net radiation balance, whereas a mean value of only 75 J/cm 2 d is observed at 0/10. The energy excess of the net radiation balance with overcast sky is due to the significant influence of the incoming long-wave radiation and the high albedo of the surface (average of 84%). High values of net radiation balance are therefore correlated with high values of long-wave radiation balance and low values of short-wave radiation balance. |
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