tag:blogger.com,1999:blog-4572286363399496963.post5501203734714730570..comments2024-03-18T16:56:29.399-08:00Comments on Deep Cold: Alaska Weather & Climate: Accessing Deep Cold in FairbanksRickhttp://www.blogger.com/profile/03946704894714514716noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-4572286363399496963.post-22539092736751134152013-01-04T13:00:12.396-09:002013-01-04T13:00:12.396-09:00OK, no noun modifiers allowed here...PDO Coefficie...OK, no noun modifiers allowed here...PDO Coefficient Of Denial. <br /><br />It stems from realizing we're now in a cool phase of the PDO, but living in denial that the fine relatively warm years of a positive PDO (1976-7 to about mid 2000's) may have lapsed. <br /><br />Who wants years more of cold? = denial. How we allow that fact to run our lives might yield a correlation coefficient (ooops, another noun modifier slipped in). (;-) <br /><br />Gary<br /><br />GaryNL7Yhttps://www.blogger.com/profile/15874712728971005352noreply@blogger.comtag:blogger.com,1999:blog-4572286363399496963.post-72620711018731645492013-01-04T12:09:49.079-09:002013-01-04T12:09:49.079-09:00denial coefficient?denial coefficient?Rickhttps://www.blogger.com/profile/03946704894714514716noreply@blogger.comtag:blogger.com,1999:blog-4572286363399496963.post-11900765890502502402013-01-04T12:09:24.164-09:002013-01-04T12:09:24.164-09:00Thanks RichardThanks RichardRickhttps://www.blogger.com/profile/03946704894714514716noreply@blogger.comtag:blogger.com,1999:blog-4572286363399496963.post-45768926457297802482013-01-04T11:14:15.137-09:002013-01-04T11:14:15.137-09:00After some thought and sleep, I agree with the -30...After some thought and sleep, I agree with the -30F criteria for breaking the "cold barrier" and BDD. It's a subjective value, yet over my last 48 years in Alaska it becomes a real challenge to operate and run equipment normally at low temps when they fall below -30F, Chill factor included. For example, the local International Airport maintenance crew minimizes their activity at that temp due to increased breakdowns in equipment.<br /><br />Snow machining, flying, travel, vehicles, house heating/fuel expenses, whatever takes on a new dimension below -30F. Even my dog recognizes the chill.<br /><br />Good show Rick...now to see what the rest of the winter brings.<br /><br />Gary<br /><br />NL7Yhttps://www.blogger.com/profile/15874712728971005352noreply@blogger.comtag:blogger.com,1999:blog-4572286363399496963.post-58218311609027795462013-01-04T06:05:11.842-09:002013-01-04T06:05:11.842-09:00Rick, This is a fascinating, creative analysis. S...Rick, This is a fascinating, creative analysis. So December 2012 was almost in the top 10 coldest on record according to the degree of "bitter cold", though it was much less remarkable from the perspective of mean temperature.<br /><br />The PDO phases show up really well in these statistics. It seems that 18 of the 20 most negative PDO winters had above-normal BDD, whereas 18 of the 20 most positive PDO winters had below-normal BDD. So the BDD distribution is strongly influenced by PDO phase. Would be interesting to examine whether BDD's are more sensitive to PDO than just the mean temperature, i.e. how does the PDO affect the tails of the temperature distribution.<br /><br />Richard<br />Richard Jamesnoreply@blogger.comtag:blogger.com,1999:blog-4572286363399496963.post-43677734690372865122013-01-03T23:47:19.272-09:002013-01-03T23:47:19.272-09:00Excellent Rick..I knew you could offer a good Cold...Excellent Rick..I knew you could offer a good Cold Weather/BDD analysis. The CC's above are good. Time now to mine the databases for more. <br /><br />Does Negative PDO have a denial coefficient?<br /><br />Thank you. <br /><br />GaryNL7Yhttps://www.blogger.com/profile/15874712728971005352noreply@blogger.com