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: NCA

Ray Pierrehumbert on the new U.S.-China climate deal

Posted on 18 November 2014 by ecoquant

Professor Pierrehumbert offers his thoughts in Slate. He’s the author of Principles of Planetary Climate which is, as far as I’m concerned, the definitive climate book.

Posted in astronomy, astrophysics, carbon dioxide, carbon dioxide capture, Carbon Tax, chemistry, citizen science, citizenship, civilization, climate, climate education, conservation, consumption, demand-side solutions, differential equations, ecology, economics, education, efficiency, energy, energy reduction, engineering, environment, forecasting, geoengineering, geophysics, investing, investment in wind and solar energy, IPCC, mathematics, maths, meteorology, methane, NCA, NOAA, oceanography, physics, politics, rationality, reasonableness, risk, science, scientific publishing, solar power, statistics, wind power | Tagged climate book | Leave a comment

Observed change: National Climate Assessment

Posted on 5 November 2014 by ecoquant

See NOAA’s “observed change”.

Posted in citizenship, civilization, climate, climate education, environment, forecasting, geophysics, IPCC, maths, meteorology, NCA, NOAA, oceanography, physics, rationality, reasonableness, risk, science | Leave a comment
  • Distributed Solar: The Democratizaton of Energy

  • Blogroll

    • "Consider a Flat Pond" Invited talk introducing systems thinking, by Jan Galkowski, at First Parish in Needham, UU, via Zoom
    • Dominic Cummings blog Chief advisor to the PM, United Kingdom
    • Giant vertical monopolies for energy have stopped making sense
    • ggplot2 and ggfortify Plotting State Space Time Series with ggplot2 and ggfortify
    • Ives and Dakos techniques for regime changes in series
    • 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/
    • Brendon Brewer on Overfitting Important and insightful presentation by Brendon Brewer on overfitting
    • John Cook's reasons to use Bayesian inference
    • WEAPONS OF MATH DESTRUCTION Cathy O’Neil’s WEAPONS OF MATH DESTRUCTION,
    • distributed solar and matching location to need
    • Logistic curves in market disruption From DollarsPerBBL, about logistic or S-curves as models of product take-up rather than exponentials, with notes on EVs
    • 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.
    • Earth Family Beta MIchael Osborne’s blog on Science and the like
    • London Review of Books
    • 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
    • Dollars per BBL: Energy in Transition
    • Leadership lessons from Lao Tzu
    • GeoEnergy Math Prof Paul Pukite’s Web site devoted to energy derived from geological and geophysical processes and categorized according to its originating source.
    • Harvard's Project Implicit
    • South Shore Recycling Cooperative Materials management, technical assistance and networking, town advocacy, public outreach
    • 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.
    • American Statistical Association
    • Mertonian norms
    • Ted Dunning
    • Survey Methodology, Prof Ron Fricker http://faculty.nps.edu/rdfricke/
    • 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/.
    • The Alliance for Securing Democracy dashboard
    • Dr James Spall's SPSA
    • 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.
    • Flettner Rotor Bruce Yeany introduces the Flettner Rotor and related science
    • Tony Seba Solar energy, electric vehicle, energy storage, and business disruption professor and visionary
    • Bob Altemeyer on authoritarianism (via Dan Satterfield) The science behind the GOP civil war
    • Brian McGill's Dynamic Ecology blog Quantitative biology with pithy insights regarding applications of statistical methods
    • WEAPONS OF MATH DESTRUCTION, reviews Reviews of Cathy O’Neil’s new book
    • Gabriel's staircase
    • AP Statistics: Sampling, by Michael Porinchak Twin City Schools
    • 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
    • Rasmus Bååth's Research Blog Bayesian statistics and data analysis
    • Gavin Simpson
    • All about Sankey diagrams
    • Musings on Quantitative Paleoecology Quantitative methods and palaeoenvironments.
    • 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
    • Mark Berliner's video lecture "Bayesian mechanistic-statistical modeling with examples in geophysical settings"
    • 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.”
    • Slice Sampling
    • James' Empty Blog
    • "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.
    • Leverhulme Centre for Climate Change Mitigation
    • NCAR AtmosNews
    • Risk and Well-Being
  • climate change

    • Spectra Energy exposed
    • Interview with Wally Broecker Interview with Wally Broecker
    • AIP's history of global warming science: impacts The American Institute of Physics has a fine history of the science of climate change. This link summarizes the history of impacts of climate change.
    • 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
    • Klaus Lackner (ASU), Silicon Kingdom Holdings (SKH) Capturing CO2 from air at scale
    • `Who to believe on climate change': Simple checks By Bart Verheggen
    • Dessler's 6 minute Greenhouse Effect video
    • Steve Easterbrook's excellent climate blog: See his "The Internet: Saving Civilization or Trashing the Planet?" for example Heavy on data and computation, Easterbrook is a CS prof at UToronto, but is clearly familiar with climate science. I like his “The Internet: Saving Civilization or Trashing the Planet” very much.
    • James Powell on sampling the climate consensus
    • ATTP summarizes all that stuff about Committed Warming from AND THEN THERE’S PHYSICS
    • weather blocking patterns
    • World Weather Attribution
    • Sea Change Boston
    • Non-linear feedbacks in climate (discussion of Bloch-Johnson, Pierrehumbert, Abbot paper) Discussion of http://onlinelibrary.wiley.com/wol1/doi/10.1002/2015GL064240/abstract
    • Professor Robert Strom's compendium of resources on climate change Truly excellent
    • Simple models of climate change
    • Ellenbogen: There is no Such Thing as Wind Turbine Syndrome
    • 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.
    • The HUMAN-caused greenhouse effect, in under 5 minutes, by Bill Nye
    • Grid parity map for Solar PV in United States
    • MIT's Climate Primer
    • Ice and Snow
    • SolarLove
    • Rabett Run Incisive analysis of climate science versus deliberate distraction
    • 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
    • `The unchained goddess' 1958 Bell Telephone Science Hour broadcast regarding, among other things, climate change.
    • Tuft's Professor Kenneth Lang on the physical chemistry of the Greenhouse Effect
    • Bloomberg interactive graph on “What's warming the world''
    • The Scientific Case for Modern Human-caused Global Warming
    • HotWhopper: It's excellent. Global warming and climate change. Eavesdropping on the deniosphere, its weird pseudo-science and crazy conspiracy whoppers.
    • 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%.
    • Jacobson WWS literature index
    • Wally Broecker on climate realism
    • The Green Plate Effect Eli Rabett’s “The Green Plate Effect”
    • "Lessons of the Little Ice Age" (Farber) From Dan Farber, at LEGAL PLANET
    • Eli on the spectroscopic basis of atmospheric radiation physical chemistry
    • “The Irrelevance of Saturation: Why Carbon Dioxide Matters'' (Bart Levenson)
    • Documenting the Climate Deniarati at work
    • Mathematics and Climate Research Network The Mathematics and Climate Research Network (MCRN) engages mathematicians to collaborating on the cryosphere, conceptual model validation, data assimilation, the electric grid, food systems, nonsmooth systems, paleoclimate, resilience, tipping points.
    • 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
    • “Ways to [try to] slow the Solar Century''
    • Warming slowdown discussion
    • “The discovery of global warming'' (American Institute of Physics)
    • James Hansen and granddaughter Sophie on moving forward with progress on climate
    • Updating the Climate Science: What path is the real world following? From Professors Makiko Sato & James Hansen of Columbia University
    • "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.
    • Transitioning to fully renewable energy Professor Saul Griffiths talks to transitioning the customer journey, from a dependency upon fossil fuels to an electrified future
    • Earth System Models
    • Thriving on Low Carbon
  • 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...