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Category Archives: The Weather Company

Proud to be a member of the American Meteorological Society

Posted on 14 March 2017 by ecoquant

(Click image to see a larger figure, and use your browser Back Button to return to blog.) Here is the link to the AMETSOC official statement, cited in the letter. AMETSOC is hardly the only such professional scientific organization to … Continue reading →

Posted in American Association for the Advancement of Science, American Meteorological Association, AMETSOC, Anthropocene, atmosphere, being carbon dioxide, Bill Nye, Carbon Worshipers, climate, climate change, climate disruption, climate education, Climate Lab Book, David Archer, Donald Trump, ecology, environment, environmental law, geophysics, global warming, greenhouse gases, Hyper Anthropocene, meteorological models, meteorology, National Center for Atmospheric Research, NCAR, Our Children's Trust, Principles of Planetary Climate, Ray Pierrehumbert, science, the right to know, the tragedy of our present civilization, The Weather Channel, The Weather Company | Leave a comment
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  • Kalman filtering and smoothing; dynamic linear models



    Also, see datasets and R examples to accompany this excellent text.





    I have used dlm almost exclusively, except when extreme efficiency was required. Since Jouni Helske's KFAS was rewritten, though, I'm increasingly drawn to it, because the noise sources it supports are more diverse than dlm's. KFAS uses the notation and approaches of Durbin, Koopman, and Harvey.

    ``The real problem is that programmers have spent far too much time worrying about efficiency in the wrong places and at the wrong times; premature optimization is the root of all evil (or at least most of it) in programming.''
    Professor Donald Knuth, 1974
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