|WORLD METEOROLOGICAL ORGANIZATION||
|Explanation of the criteria for classification and numbering of components||
|Explanation of the dates on the component's description|
SNOW SURVEYING PROCEDURES
1. Purpose and objectives
Snow surveys at designated sites are made at regular intervals during
the winter months to determine the depth and water equivalent (and
therefore density) of the snowpack.
Snow survey data are of value in estimating the spring runoff
potential, agricultural productivity and fertilizer requirements, water
fowl populations, snow loads, wildlife survival, etc. The site selected
Actual snow cover.
Average depth, density and water equivalent of snowpack as determined
from snow surveys.
5. Operational requirements and restrictions
Snow surveys are done on a regular basis (weekly, semi-monthly or
monthly) at each snow course as long as there is more than 5 cm of snow on
6. Form of presentation
Manual of Standards on Snow Surveying Procedures (paper copy).
7. Operational experience
Snow surveys are carried out in most countries where snow is of
hydrological significance. They have been operated in various regions of
Canada from as early as 1935.
8. Originator and technical support
10. Conditions on use
|(First entered: 16 JAN 81||
Last updated: 14 DEC 99)