667 per centimeter : climate science, quantitative biology, statistics, and energy policy
“Linnaeus, letting fall his hand on a bunch of Moss at his side, exclaimed, ‘Underneath this palm is material for the study of a lifetime’; and if this is true of a handful of Moss, the treasures of a township must be inexhaustible. We need not seek for new worlds to conquer.“ — Timothy Otis Fuller, “A Sketch of the Flora of Needham”, 1886
Skip to content
  • Home
  • About

Category Archives: Markov chain random fields

Repaired R code for Markov spatial simulation of hurricane tracks from historical trajectories

Posted on 11 August 2016 by ecoquant

(Slight update, 28th June 2020.) I’m currently studying random walk and diffusion processes and their connections with random fields. I’m interested in this because at the core of dynamic linear models, Kalman filters, and state-space methods there is a random … Continue reading →

Posted in American Meteorological Association, American Statistical Association, AMETSOC, Arthur Charpentier, atmosphere, diffusion, diffusion processes, dynamic linear models, dynamical systems, environment, geophysics, hurricanes, Kalman filter, Kerry Emanuel, Lévy flights, Lorenz, Markov chain random fields, mathematics, mathematics education, maths, MCMC, mesh models, meteorological models, meteorology, model-free forecasting, Monte Carlo Statistical Methods, numerical analysis, numerical software, oceanography, open data, open source scientific software, physics, random walk processes, random walks, science, spatial statistics, state-space models, statistical dependence, statistics, stochastic algorithms, stochastics, time series | 1 Comment
  • Distributed Solar: The Democratizaton of Energy

  • Blogroll

    • Charlie Kufs' "Stats With Cats" blog
    • In Monte Carlo We Trust
    • Pat's blog
    • Awkward Botany
    • Giant vertical monopolies for energy have stopped making sense
    • Risk and Well-Being
    • Simon Wood's must-read paper on dynamic modeling of complex systems
    • James' Empty Blog
    • BioPython
    • Bob Altemeyer on authoritarianism (via Dan Satterfield)
  • climate change

    • Isaac Held's blog
    • Wally Broecker on climate realism
    • History of discovering Global Warming
    • James Powell on sampling the climate consensus
    • Agendaists
    • Climate Change Reports
    • “Ways to [try to] slow the Solar Century''
    • Interview with Wally Broecker
    • Mrooijer's Global Temperature Explorer
    • Simple models of climate change
  • Archives

  • Jan Galkowski

    • ecoquant
  • Blog Stats

    • 80,793 hits
  • Recent Posts

    • Sir David Attenborough : “… a value on Nature … and through global cooperation” 1 March 2021
    • New Meetup: Massachusetts Mosses and Lichens 26 February 2021
    • Texas. Wonderment. 26 February 2021
    • Field survey update for 2021-02-24: Bryophytes, lichens, and Lycopodia in winter (LoSoMaaCoF) 25 February 2021
    • Why I care about and study mosses 20 February 2021
    • Moss of the Week, 2021-02-19 19 February 2021
    • Wind turbines in winter 18 February 2021
    • Field survey update for 2021-02-17: Bryophytes, lichens, and Lycopodia in winter (LoSoMaaCoF) 17 February 2021
    • unsustainable 15 February 2021
    • You want to know where we really are? 14 February 2021
    • GM owes (us) 12 February 2021
    • Meet your sparring partner 11 February 2021
    • ICL’s Gast, Openshaw, Riley, Barclay on COVID-19 by SARS-CoV-2 : Disease, transmission, variants, and all that 10 February 2021
    • Field survey update for 2021-02-03 and 2021-02-10: Bryophytes, lichens, and Lycopodia in winter (LoSoMaaCoF) 9 February 2021
    • It’s all because we didn’t listen to Ted Nelson 8 February 2021
    • Good news: +2.1 degrees Celsius … It shows what we can do 8 February 2021
    • “Trump supporters go to Washington” 7 February 2021
    • Posidonia oceanica 6 February 2021
    • “…. [T]here’s something wonderful about … shooting for 200% renewable generation [over what’s needed] rather than struggling to get to 90% or net zero” 5 February 2021
    • Another reason air source heat pumps are a win 4 February 2021
    • Where We Be 2 February 2021
    • no words 2 February 2021
    • Field survey update for 2021-01-26: Bryophytes, lichens, and Lycopodia in winter (LoSoMaaCoF) 30 January 2021
    • On storing and logging moss specimens 30 January 2021
    • Rebekah Jones, update: epitome of courage 29 January 2021
    • The recipe for success of green energy in the Massachusetts suburbs 29 January 2021
    • What is to be done? Personal ideological purity not only doesn’t help, it can be counterproductive 28 January 2021
    • Construction of Solar Arrays, Oxford, MA, by BlueWave Solar 26 January 2021
    • Simple: Stop burning things 24 January 2021
    • The next time you hear someone sayin’ how dirty wind turbines and solar panels are to manufacture … 23 January 2021
    • Field survey update for 2021-01-20: Bryophytes, lichens, and Lycopodia in winter (LoSoMaaCoF) 21 January 2021
    • “Environmentalists’climate change myths” 20 January 2021
    • “The U.S. should lead the world on climate change” 19 January 2021
    • Consumer, Employment, and Environmental Benefits of Electricity Transmission Expansion in the Eastern United States 18 January 2021
    • banks aren’t interested … 7 January 2021
    • “What comes next?” 6 January 2021
    • Woods Hole Oceanographic Institution, 2020: Looking forward to 2021 and well beyond 4 January 2021
    • Introducing a long term longitudinal survey of some bryophytes, lichens, and Lycopodium individuals 29 December 2020
    • A harmful visitor who thrives because of climate change: Adelges tsugae 28 December 2020
    • Hints on a second edition of Principles of Planetary Climate 27 December 2020
    • Wind turbines don’t kill (many) birds, but people do 26 December 2020
    • Physicists Doing Blues 26 December 2020
    • The engagement with SARS-CoV-2: Where we stand in the United States, in curated numbers 26 December 2020
    • Happy Newtonmas, 2020 25 December 2020
    • Fossil fuels have no future 19 December 2020
    • Much ado about explosive methane 14 December 2020
    • a song in praise of data scientist Rebekah Jones 12 December 2020
    • … [T]oo detached from my natural origins to see the problem … 11 December 2020
    • From False Progress 9 December 2020
    • On living with wind turbines 9 December 2020
  • Enter your email address to follow this blog and receive notifications of new posts by email.

    Join 113 other followers

  • Goodreads

  • 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
667 per centimeter : climate science, quantitative biology, statistics, and energy policy
Create a website or blog at WordPress.com
Cancel

 
Loading Comments...
Comment
    ×