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

Tag Archives: math

High School Sports versus What High School is For

Posted on 24 September 2013 by ecoquant

Worth a Read- The Case Against High School Sports Direct link is: http://www.theatlantic.com/magazine/archive/2013/10/the-case-against-high-school-sports/309447/

Posted in Uncategorized | Tagged education, math, science | 1 Comment
  • Distributed Solar: The Democratizaton of Energy

  • Blogroll

    • Charlie Kufs' "Stats With Cats" blog “You took Statistics 101. Now what?”
    • Awkward Botany
    • Woods Hole Oceanographic Institution (WHOI)
    • Gavin Simpson
    • Risk and Well-Being
    • Mark Berliner's video lecture "Bayesian mechanistic-statistical modeling with examples in geophysical settings"
    • Flettner Rotor Bruce Yeany introduces the Flettner Rotor and related science
    • Quotes by Nikola Tesla Quotes by Nikola Tesla, including some of others he greatly liked.
    • ggplot2 and ggfortify Plotting State Space Time Series with ggplot2 and ggfortify
    • Peter Congdon's Bayesian statistical modeling Peter Congdon’s collection of links pertaining to his several books on Bayesian modeling
    • 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.”
    • 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/
    • Karl Broman
    • John Cook's reasons to use Bayesian inference
    • "The Expert"
    • Earle Wilson
    • Mike Bloomberg, 2020 He can get progress on climate done, has the means and experts to counter the Trump and Republican digital disinformation machine, and has the experience, knowledge, and depth of experience to achieve and unify.
    • American Statistical Association
    • Musings on Quantitative Paleoecology Quantitative methods and palaeoenvironments.
    • John Kruschke's "Dong Bayesian data analysis" blog Expanding and enhancing John’s book of same title (now in second edition!)
    • The Plastic Pick-Up: Discovering new sources of marine plastic pollution
    • Tim Harford's “More or Less'' Tim Harford explains – and sometimes debunks – the numbers and statistics used in political debate, the news and everyday life
    • OOI Data Nuggets OOI Ocean Data Lab: The Data Nuggets
    • Brendon Brewer on Overfitting Important and insightful presentation by Brendon Brewer on overfitting
    • In Monte Carlo We Trust The statistics blog of Matt Asher, actually called the “Probability and Statistics Blog”, but his subtitle is much more appealing. Asher has a Manifesto at http://www.statisticsblog.com/manifesto/.
    • SASB Sustainability Accounting Standards Board
    • "Consider a Flat Pond" Invited talk introducing systems thinking, by Jan Galkowski, at First Parish in Needham, UU, via Zoom
    • Professor David Draper
    • Team Andrew Weinberg Walking September 8th for the Jimmy Fund!
    • Survey Methodology, Prof Ron Fricker http://faculty.nps.edu/rdfricke/
    • Thaddeus Stevens quotes As I get older, I admire this guy more and more
    • "Impacts of Green New Deal energy plans on grid stability, costs, jobs, health, and climate in 143 countries" (Jacobson, Delucchi, Cameron, et al) Global warming, air pollution, and energy insecurity are three of the greatest problems facing humanity. To address these problems, we develop Green New Deal energy roadmaps for 143 countries.
    • "Talking Politics" podcast David Runciman, Helen Thompson
    • BioPython A collection of Python tools for quantitative Biology
    • 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.
    • International Society for Bayesian Analysis (ISBA)
    • 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”
    • Patagonia founder Yvon Chouinard on how businesses can help our collective environmental mess Patagonia’s Yvon Chouinard set the standard for how a business can mitigate the ravages of capitalism on earth’s environment. At 81 years old, he’s just getting started.
    • 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
    • London Review of Books
    • Beautiful Weeds of New York City
    • All about models
    • Bob Altemeyer on authoritarianism (via Dan Satterfield) The science behind the GOP civil war
    • The Keeling Curve: its history History of the Keeling Curve and Charles David Keeling
    • WEAPONS OF MATH DESTRUCTION, reviews Reviews of Cathy O’Neil’s new book
    • Healthy Home Healthy Planet
    • Leadership lessons from Lao Tzu
    • All about ENSO, and lunar tides (Paul Pukite) Historically, ENSO has been explained in terms of winds. But recently — and Dr Paul Pukite has insisted upon this for a long time — the oscillation of ENSO has been explained as a large-scale slosh due to lunar tidal forcing.
    • South Shore Recycling Cooperative Materials management, technical assistance and networking, town advocacy, public outreach
    • Mrooijer's Numbers R 4Us
  • climate change

    • Simple box models and climate forcing IMO one of Tamino’s best posts illustrating climate forcing using simple box models
    • Reanalyses.org
    • The Sunlight Economy
    • Climate Change Reports By John and Mel Harte
    • Energy payback period for solar panels Considering everything, how long do solar panels have to operate to offset the energy used to produce them?
    • Grid parity map for Solar PV in United States
    • The Keeling Curve The first, and one of the best programs for creating a spatially significant long term time series of atmospheric concentrations of CO2. Started amongst great obstacles by one, smart determined guy, Charles David Keeling.
    • “The Irrelevance of Saturation: Why Carbon Dioxide Matters'' (Bart Levenson)
    • SolarLove
    • Climate Change Denying Organizations
    • Updating the Climate Science: What path is the real world following? From Professors Makiko Sato & James Hansen of Columbia University
    • James Powell on sampling the climate consensus
    • An open letter to Steve Levitt
    • Andy Zucker's "Climate Change and Psychology"
    • Transitioning to fully renewable energy Professor Saul Griffiths talks to transitioning the customer journey, from a dependency upon fossil fuels to an electrified future
    • RealClimate
    • Nick Bower's "Scared Scientists"
    • Exxon-Mobil statement on UNFCCC COP21
    • Tuft's Professor Kenneth Lang on the physical chemistry of the Greenhouse Effect
    • Ellenbogen: There is no Such Thing as Wind Turbine Syndrome
    • World Weather Attribution
    • Bloomberg interactive graph on “What's warming the world''
    • Équiterre Equiterre helps build a social movement by encouraging individuals, organizations and governments to make ecological and equitable choices, in a spirit of solidarity.
    • James Hansen and granddaughter Sophie on moving forward with progress on climate
    • "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
    • The net average effect of a warming climate is increased aridity (Professor Steven Sherwood)
    • Skeptical Science
    • Climate at a glance Current state of the climate, from NOAA
    • "A field guide to the climate clowns"
    • SOLAR PRODUCTION at Westwood Statistical Studios Generation charts for our home in Westwood, MA
    • History of discovering Global Warming From the American Institute of Physics.
    • Jacobson WWS literature index
    • 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
    • "Warming Slowdown?" (part 2 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. The second part.
    • Wally Broecker on climate realism
    • The Green Plate Effect Eli Rabett’s “The Green Plate Effect”
    • 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
    • CLIMATE ADAM Previously from the Science news staff at the podcast of Nature (“Nature Podcast”), the journal, now on YouTube, encouraging climate action through climate comedy.
    • Model state level energy policy for New Englad Bob Massie’s proposed energy policy for Massachusetts, an admirable model for energy policy anywhere in New England
    • MIT's Climate Primer
    • “The discovery of global warming'' (American Institute of Physics)
    • ATTP summarizes all that stuff about Committed Warming from AND THEN THERE’S PHYSICS
    • 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.
    • Sir David King David King’s perspective on climate, and the next thousands of years for humanity
    • Wind sled Wind sled: A zero carbon way of exploring ice sheets
    • Solar Gardens Community Power
    • `The unchained goddess' 1958 Bell Telephone Science Hour broadcast regarding, among other things, climate change.
    • And Then There's Physics
    • Non-linear feedbacks in climate (discussion of Bloch-Johnson, Pierrehumbert, Abbot paper) Discussion of http://onlinelibrary.wiley.com/wol1/doi/10.1002/2015GL064240/abstract
    • All Models Are Wrong Dr Tamsin Edwards blog about uncertainty in science, and climate science
  • Archives

  • Jan Galkowski

    • 1 ecoquant
  • Blog Stats

    • 115,747 hits
  • Recent Posts

    • 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
    • Comments on MFT for macrophotography, especially the OLY 60mm lens 7 February 2025
    • 2025Feb5J36 post-snow, pre-snow Polytrichum 5 February 2025
    • 2025Jan22-J22 converting ORF files to JPEG 22 January 2025
    • Moss Carbon Problem in Peatlands 20 January 2025
    • Photo Comments? 19 January 2025
    • Mosses in Winter 18 January 2025
    • “A Key Part of Biden’s Climate Law Was Built to Survive Trump. Now, the Test.” 7 January 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...