An annual analysis of data from 11 weather stations across Canada was examined for temporal changes in the number of frost free days (FFDs) per winter. From 1940 to 2009, Canada has experienced an increase in the number of FFDs with an average of 12 days in 100 years. The numbers of FFDs per winter increased exponentially when mean WDMT rises steadily. The best fit normal distribution function of WDMT in recent decades has shifted toward the hotter part of the curve.
The predicted numbers of FFDs per winter from the exceedance probability (EP) has increased exponentially when mean WDMT rise steadily. The EP model displayed a close comparison between the predicted and the measured number of FFDs. The EP model also provides a useful tool for making predictions about the increase in the number of frost-free days at any single station, given the rate of rise in minimum temperatures
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:OGU.10214/7445 |
| Date | 08 1900 |
| Creators | Manzoor, Shaukat |
| Contributors | Rudra, Ramesh |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Thesis |
| Rights | Attribution 2.5 Canada, http://creativecommons.org/licenses/by/2.5/ca/ |
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