Airflow and gas exchange in snow-fact or fiction
Title | Airflow and gas exchange in snow-fact or fiction |
Publication Type | Conference Proceedings |
Year of Conference | 1975 |
Authors | Van Haveren, B. P. |
Conference Name | 43rd Annual Western Snow Conference |
Series Title | Proceedings of the 43rd Annual Western Snow Conference |
Date Published | April 1975 |
Publisher | Western Snow Conference |
Conference Location | Coronado, California |
Keywords | Snow water vapor, Snow water vapor movement |
Abstract | Snow physicists have paid little attention to the topics of airflow phenomena, void air composition, and gas transfer mechanisms in the seasonal snowpack. These processes have both hydrologic and biologic significance. Although recent information has been gathered on the concentrations and transfer characteristics of water vapor in s snow, these studies need to be expanded and intensified. The results from these preliminary studies appear to indicate that water vapor moves within and from the snowpack by diffusion and also by convection, and that concentrations of water vapor in the voids of surface snow layers may be strongly influenced by atmospheric conditions at the snow surface. Biological activity under the spring snowpack increases as snow and soil temperatures increase. Most of this activity is concentrated at or within a few centimeters of the soil-snow-interface. In order for organisms to survive under these conditions, the processes of photosynthesis and respiration must occur, which necessarily involves exchange of CO2 and O2. |
URL | sites/westernsnowconference.org/PDFs/1975Van Haveren.pdf |