667 per centimeter
"Whether we and our politicians know it or not, Nature is party to all our deals and decisions, and she has more votes, a longer memory, and a sterner sense of justice than we do." — Wendell Berry
Skip to content
  • Home
  • About

Category Archives: Patterson’s Worm

The Rule of 135

Posted on 29 May 2017 by ecoquant

From SingingBanana.

Posted in Conway's Game of Life, dynamical systems, finite-state machines, mathematical publishing, mathematics, mathematics education, maths, Patterson's Worm, random walks, state-space models, statistical dependence, statistics | Leave a comment
  • Distributed Solar: The Democratizaton of Energy

  • Blogroll

    • Woods Hole Oceanographic Institution (WHOI)
    • SASB Sustainability Accounting Standards Board
    • What If
    • Busting Myths About Heat Pumps Heat pumps are perhaps the most efficient heating and cooling systems available. Recent literature distributed by utilities hawking natural gas and other sources use performance figures from heat pumps as they were available 15 years ago. See today’s.
    • Hermann Scheer Hermann Scheer was a visionary, a major guy, who thought deep thoughts about energy, and its implications for humanity’s relationship with physical reality
    • distributed solar and matching location to need
    • Leverhulme Centre for Climate Change Mitigation
    • American Statistical Association
    • Prediction vs Forecasting: Knaub “Unfortunately, ‘prediction,’ such as used in model-based survey estimation, is a term that is often subsumed under the term ‘forecasting,’ but here we show why it is important not to confuse these two terms.”
    • Musings on Quantitative Paleoecology Quantitative methods and palaeoenvironments.
    • Beautiful Weeds of New York City
    • "Perpetual Ocean" from NASA GSFC
    • Charlie Kufs' "Stats With Cats" blog “You took Statistics 101. Now what?”
    • James' Empty Blog
    • Pat's blog While it is described as “The mathematical (and other) thoughts of a (now retired) math teacher”, this is false humility, as it chronicles the present and past life and times of mathematicians in their context. Recommended.
    • Tony Seba Solar energy, electric vehicle, energy storage, and business disruption professor and visionary
    • Los Alamos Center for Bayesian Methods
    • Earth Family Alpha Michael Osborne’s blog (former Executive at Austin Energy, now Chairman of the Electric Utility Commission for Austin, Texas)
    • Lenny Smith's CHAOS: A VERY SHORT INTRODUCTION This is a PDF version of Lenny Smith’s book of the same title, also available from Amazon.com
    • WEAPONS OF MATH DESTRUCTION, reviews Reviews of Cathy O’Neil’s new book
    • Dominic Cummings blog Chief advisor to the PM, United Kingdom
    • Simon Wood's must-read paper on dynamic modeling of complex systems I highlighted Professor Wood’s paper in https://hypergeometric.wordpress.com/2014/12/26/struggling-with-problems-already-attacked/
    • The Keeling Curve: its history History of the Keeling Curve and Charles David Keeling
    • WEAPONS OF MATH DESTRUCTION Cathy O’Neil’s WEAPONS OF MATH DESTRUCTION,
    • Flettner Rotor Bruce Yeany introduces the Flettner Rotor and related science
    • Awkward Botany
    • Carl Safina's blog One of the wisest on Earth
    • Professor David Draper
    • Mrooijer's Numbers R 4Us
    • Rasmus Bååth's Research Blog Bayesian statistics and data analysis
    • Earth Family Beta MIchael Osborne’s blog on Science and the like
    • Giant vertical monopolies for energy have stopped making sense
    • Label Noise
    • Mertonian norms
    • Fear and Loathing in Data Science Cory Lesmeister’s savage journey to the heart of Big Data
    • International Society for Bayesian Analysis (ISBA)
    • All about models
    • Dollars per BBL: Energy in Transition
    • Earle Wilson
    • American Association for the Advancement of Science (AAAS)
    • London Review of Books
    • Peter Congdon's Bayesian statistical modeling Peter Congdon’s collection of links pertaining to his several books on Bayesian modeling
    • Higgs from AIR describing NAO and EA Stephanie Higgs from AIR Worldwide gives a nice description of NAO and EA in the context of discussing “The Geographic Impact of Climate Signals on European Winter Storms”
    • AP Statistics: Sampling, by Michael Porinchak Twin City Schools
    • John Cook's reasons to use Bayesian inference
    • OOI Data Nuggets OOI Ocean Data Lab: The Data Nuggets
    • Darren Wilkinson's introduction to ABC Darren Wilkinson’s introduction to approximate Bayesian computation (“ABC”). See also his post about summary statistics for ABC https://darrenjw.wordpress.com/2013/09/01/summary-stats-for-abc/
    • "The Expert"
    • "Consider a Flat Pond" Invited talk introducing systems thinking, by Jan Galkowski, at First Parish in Needham, UU, via Zoom
    • Slice Sampling
  • climate change

    • "Mighty Microgrids" Webinar This is a Webinar on YouTube about Microgrids from the Institute for Local Self-Reliance (ILSR), featuring New York State and Minnesota
    • SolarLove
    • Berkeley Earth Surface Temperature
    • Wind sled Wind sled: A zero carbon way of exploring ice sheets
    • Professor Robert Strom's compendium of resources on climate change Truly excellent
    • "Warming Slowdown?" (part 1 of 2) The idea of a global warming slowdown or hiatus is critically examined, emphasizing the literature, the datasets, and means and methods for telling such. In two parts.
    • Wally Broecker on climate realism
    • weather blocking patterns
    • Mrooijer's Global Temperature Explorer
    • James Hansen and granddaughter Sophie on moving forward with progress on climate
    • `The unchained goddess' 1958 Bell Telephone Science Hour broadcast regarding, among other things, climate change.
    • Interview with Wally Broecker Interview with Wally Broecker
    • "Lessons of the Little Ice Age" (Farber) From Dan Farber, at LEGAL PLANET
    • History of discovering Global Warming From the American Institute of Physics.
    • The beach boondoggle Prof Rob Young on how owners of beach property are socializing their risks at costs to all of us, not the least being it seems coastal damage is less than it actually is
    • Solar Gardens Community Power
    • "Climate science is setttled enough"
    • Sea Change Boston
    • Jacobson WWS literature index
    • Climate Change: A health emergency … New England Journal of Medicine Caren G. Solomon, M.D., M.P.H., and Regina C. LaRocque, M.D., M.P.H., January 17, 2019 N Engl J Med 2019; 380:209-211 DOI: 10.1056/NEJMp1817067
    • All Models Are Wrong Dr Tamsin Edwards blog about uncertainty in science, and climate science
    • Bloomberg interactive graph on “What's warming the world''
    • Transitioning to fully renewable energy Professor Saul Griffiths talks to transitioning the customer journey, from a dependency upon fossil fuels to an electrified future
    • Tuft's Professor Kenneth Lang on the physical chemistry of the Greenhouse Effect
    • The great Michael Osborne's latest opinions Michael Osborne is a genius operative and champion of solar energy. I have learned never to disregard ANYTHING he says. He is mentor of Karl Ragabo, and the genius instigator of the Texas renewable energy miracle.
    • Climate Change Denying Organizations
    • Jacobson WWS literature index
    • Social Cost of Carbon
    • RealClimate
    • Exxon-Mobil statement on UNFCCC COP21
    • David Appell's early climate science
    • "When Did Global Warming Stop" Doc Snow’s treatment of the denier claim that there’s been no warming for the most recent N years. (See http://hubpages.com/@doc-snow for more on him.)
    • And Then There's Physics
    • Energy payback period for solar panels Considering everything, how long do solar panels have to operate to offset the energy used to produce them?
    • `Who to believe on climate change': Simple checks By Bart Verheggen
    • Paul Beckwith Professor Beckwith is, in my book, one of the most insightful and analytical observers on climate I know. I highly recommend his blog, and his other informational products.
    • Sir David King David King’s perspective on climate, and the next thousands of years for humanity
    • NOAA Annual Greenhouse Gas Index report The annual assessment by the National Oceanic and Atmospheric Administration of the radiative forcing from constituent atmospheric greenhouse gases
    • Spectra Energy exposed
    • Simple box models and climate forcing IMO one of Tamino’s best posts illustrating climate forcing using simple box models
    • Ice and Snow
    • James Powell on sampling the climate consensus
    • Updating the Climate Science: What path is the real world following? From Professors Makiko Sato & James Hansen of Columbia University
    • Isaac Held's blog In the spirit of Ray Pierrehumbert’s “big ideas come from small models” in his textbook, PRINCIPLES OF PLANETARY CLIMATE, Dr Held presents quantitative essays regarding one feature or another of the Earth’s climate and weather system.
    • Climate change: Evidence and causes A project of the UK Royal Society: (1) Answers to key questions, (2) evidence and causes, and (3) a short guide to climate science
    • Ray Pierrehumbert's site related to "Principles of Planetary Climate" THE book on climate science
    • Eli on the spectroscopic basis of atmospheric radiation physical chemistry
    • US$165/tonne CO2: Sweden Sweden has a Carbon Dioxide tax of US$165 per tonne at present. CO2 tax was imposed in 1991. GDP has grown 60%.
    • Climate Communication Hassol, Somerville, Melillo, and Hussin site communicating climate to the public
    • "A field guide to the climate clowns"
  • Archives

  • Jan Galkowski

    • 1 ecoquant
  • Blog Stats

    • 117,205 hits
  • Recent Posts

    • More on RCP 8.5 from … 26 May 2026
    • The story of RCP 8.5 26 May 2026
    • “Estonia Warns European Allies Against Direct Talks With Russia” 17 May 2026
    • wind machine 10 May 2026
    • Dr Des Callaghan’s “Bryophytes around the world” 28 April 2026
    • Entire NSF National Science Board fired by Donald Trump 27 April 2026
    • DT is moving to control U.S. elections, one state at a time 27 April 2026
    • The Climate Brink 17 April 2026
    • Tamino, on Climate, Spring 2026 12 April 2026
    • from Canada PM Mark Carney 24 March 2026
    • Professor Katharine Hayhoe “Talking Climate” today 21 March 2026
    • thanks DT for making the case for solar and EVs and NOT oil 20 March 2026
    • 2026 March 14 [J 073.87] “Pi Day” 14 March 2026
    • Rare and hard to find 1937-1938 15 February 2026
    • EPA official actions on their “endangerment finding” 14 February 2026
    • RC: “a peek behind the curtain” 23 January 2026
    • Stark 18 January 2026
    • Could this be why DT wants Greenland? 16 January 2026
    • NAP update on Endangerment Finding 26 December 2025
    • Sporophyte capsules 16 October 2025
    • AI and GPT don’t manufacture results from nothing 18 September 2025
    • 16th September 2025, Westwood, MA 16 September 2025
    • Pohlia lescuriana 6 September 2025
    • Mckibben vs Nordhous 22 August 2025
    • NOAA climate assessment which has been taken off the federal site 13 August 2025
    • Fast-Track Review of Latest Evidence for Whether Greenhouse Gas Emissions Endanger Public Health and Welfare 7 August 2025
    • A New Phase in Trump’s War on Data 6 August 2025
    • Beaker Street 5 August 2025
    • Biofluorescent marsupial 5 August 2025
    • Steve Buchan, botanical photographer 28 July 2025
    • 2025 Jul 4-12 J(185-193) around yard 2 long lenses OM5 camera 12 July 2025
    • 25mm compact lens equivalent to 50mm 2 July 2025
    • Polytrichum macro photos, several of spore capsules 30 June 2025
    • “Macro Treasures” 12 June 2025
    • Flickr Account 24 May 2025
    • 2025 May 8 J 128 redbuds, etc, OM Systems 60mm lens 8 May 2025
    • 2025 April 19 J109 some close-ups of Polytrichum 19 April 2025
    • A New Lens 26 March 2025
    • 2025 March 23 J 82 23 March 2025
    • Climacium in Lawns 20 March 2025
    • 2025 March 16 J 75 Westwood, MA 16 March 2025
    • “Is the AMOC headed for a tipping point? Interview with Henk Dijkstra” 15 March 2025
    • 2025-03-10 J 69 10 March 2025
    • “Robert Rubin, Lawrence Summers, Timothy Geithner, Jacob Lew and Janet Yellen are former Treasury secretaries” 1 March 2025
    • “Any fool can break things” 1 March 2025
    • “What I did last week …” 27 February 2025
    • (no title) 23 February 2025
    • yesterday 16 February 2025
    • 2025Feb11 11 February 2025
    • Eviscerating the NSF 10 February 2025
  • Follow Blog via Email

    Enter your email address to follow this blog and receive notifications of new posts by email.

    Join 131 other subscribers
  • 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 Arctic Ice: The Saga Continues
Create a website or blog at WordPress.com

Loading Comments...