ATMOSPHERIC ENERGY ADVECTION IN THE ARCTIC.
Scientific rept. no. 13,
MCGILL UNIV MONTREAL (QUEBEC)
Pagination or Media Count:
The Arctic has a strongly negative radiation balance during most of the year. Part of the required energy import is fulfilled by the ocean currents, and the remainder by atmospheric advection. In the present investigation a method was used whereby the net heat import was determined directly from the quantity of energy released. The advection of latent heat was calculated by determining precipitation, evaporation and change in storage of atmospheric water vapour. The various terms and the calculated values for advected latent heat are given in tables, for different areas of the Arctic Ocean, and in illustrations for the two extreme areas. Apart from a very short spell in fall, the advection of latent heat is always positive in the Polar Ocean, contributing as much as 65 of the annual precipitation. Only 12 of the annual precipitation is contributed by advection in the Norwegian-Barents Sea. The net sensible heat advection is given by the energy balance equation for the atmosphere. The calculated values are given in a table and illustration. Author