FREEZING INDEX
type: Concept
change note: 2012-07-09 15:00:01.0 [mpmorahan] insert Definition (id: null text: The total annual freezing and thawing indices are defined as the cumulative number of degree-days when air temperatures are below and above zero degrees Celsius. The total annual freezing index has been widely used to predict permafrost distribution; estimate the maximum thickness of sea, lake, and river ice, and the maximum depth of ground-frost penetration; and classify snow types. The annual total thawing index has been used to predict permafrost distribution and to estimate the maximum depth of thaw in frozen ground. Both total freezing and thawing indices are important parameters for engineering design in cold regions. language code: en);
change note: 2012-06-26 10:19:27.0 [gee-cee] Insert Concept add broader relation (FREEZING INDEX [bc6d73a9-4943-4a3e-9f9d-9406fa54b0bc,39795] - TEMPERATURE INDICES [e8580cbb-701a-4ab1-a40f-5fae4ae1ea24,39791]);
definition: The total annual freezing and thawing indices are defined as the cumulative number of degree-days when air temperatures are below and above zero degrees Celsius. The total annual freezing index has been widely used to predict permafrost distribution; estimate the maximum thickness of sea, lake, and river ice, and the maximum depth of ground-frost penetration; and classify snow types. The annual total thawing index has been used to predict permafrost distribution and to estimate the maximum depth of thaw in frozen ground. Both total freezing and thawing indices are important parameters for engineering design in cold regions.
in scheme: sciencekeywords

TEMPERATURE INDICES
type: Concept