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
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Category Archives: amateur science

a variety of bryophyte macrophotographs

Posted on 28 April 2024 by ecoquant
Posted in ABLS, amateur science, American Bryological and Lichenological Society, biology, Botany, bryology, bryophytes, citizen data, citizen science, Commonwealth of Massachusetts, ecology, field biology, Hale Reservation, macrophotography, mosses, National Phenology Network, quantitative biology, quantitative ecology, sampling algorithms, statistical ecology | 1 Comment

In the field

Posted on 19 October 2021 by ecoquant
Posted in amateur science, bryology, bryophytes, citizen data, citizen science, computational photography, digital camera, ecology, Olympus Tough TG-6, quantitative ecology | Leave a comment
  • Distributed Solar: The Democratizaton of Energy

  • Blogroll

    • James' Empty Blog
    • GeoEnergy Math Prof Paul Pukite’s Web site devoted to energy derived from geological and geophysical processes and categorized according to its originating source.
    • Giant vertical monopolies for energy have stopped making sense
    • All about models
    • Why "naive Bayes" is not Bayesian Explains why the so-called “naive Bayes” classifier is not Bayesian. The setup is okay, but estimating probabilities by doing relative frequencies instead of using Dirichlet conjugate priors or integration strays from The Path.
    • Dr James Spall's SPSA
    • 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.
    • 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 Keeling Curve: its history History of the Keeling Curve and Charles David Keeling
    • Risk and Well-Being
    • Ted Dunning
    • Survey Methodology, Prof Ron Fricker http://faculty.nps.edu/rdfricke/
    • Los Alamos Center for Bayesian Methods
    • Leverhulme Centre for Climate Change Mitigation
    • Charlie Kufs' "Stats With Cats" blog “You took Statistics 101. Now what?”
    • International Society for Bayesian Analysis (ISBA)
    • Label Noise
    • Mark Berliner's video lecture "Bayesian mechanistic-statistical modeling with examples in geophysical settings"
    • OOI Data Nuggets OOI Ocean Data Lab: The Data Nuggets
    • 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.
    • 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.
    • Professor David Draper
    • Brendon Brewer on Overfitting Important and insightful presentation by Brendon Brewer on overfitting
    • "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.
    • Rasmus Bååth's Research Blog Bayesian statistics and data analysis
    • Dominic Cummings blog Chief advisor to the PM, United Kingdom
    • John Cook's reasons to use Bayesian inference
    • The Alliance for Securing Democracy dashboard
    • 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/.
    • American Statistical Association
    • Why It’s So Freaking Hard To Make A Good COVID-19 Model Five Thirty Eight’s take on why pandemic modeling is so difficult
    • Woods Hole Oceanographic Institution (WHOI)
    • John Kruschke's "Dong Bayesian data analysis" blog Expanding and enhancing John’s book of same title (now in second edition!)
    • SASB Sustainability Accounting Standards Board
    • What If
    • Awkward Botany
    • Leadership lessons from Lao Tzu
    • NCAR AtmosNews
    • Ives and Dakos techniques for regime changes in series
    • Carl Safina's blog One of the wisest on Earth
    • 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.
    • distributed solar and matching location to need
    • Bob Altemeyer on authoritarianism (via Dan Satterfield) The science behind the GOP civil war
    • "Talking Politics" podcast David Runciman, Helen Thompson
    • Gavin Simpson
    • Mrooijer's Numbers R 4Us
    • Comprehensive Guide to Bayes Rule
    • Gabriel's staircase
    • 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
  • climate change

    • Dessler's 6 minute Greenhouse Effect video
    • 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
    • weather blocking patterns
    • David Appell's early climate science
    • Climate Change Reports By John and Mel Harte
    • `Who to believe on climate change': Simple checks By Bart Verheggen
    • Reanalyses.org
    • `The unchained goddess' 1958 Bell Telephone Science Hour broadcast regarding, among other things, climate change.
    • ATTP summarizes all that stuff about Committed Warming from AND THEN THERE’S PHYSICS
    • "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.
    • MIT's Climate Primer
    • Climate model projections versus observations
    • Simple box models and climate forcing IMO one of Tamino’s best posts illustrating climate forcing using simple box models
    • 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
    • Sir David King David King’s perspective on climate, and the next thousands of years for humanity
    • SolarLove
    • On Thomas Edison and Solar Electric Power
    • Transitioning to fully renewable energy Professor Saul Griffiths talks to transitioning the customer journey, from a dependency upon fossil fuels to an electrified future
    • The Green Plate Effect Eli Rabett’s “The Green Plate Effect”
    • "Lessons of the Little Ice Age" (Farber) From Dan Farber, at LEGAL PLANET
    • 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
    • Tell Utilities Solar Won't Be Killed Barry Goldwater, Jr’s campaign to push for solar expansion against monopolistic utilities, as a Republican
    • “Ways to [try to] slow the Solar Century''
    • Eli on the spectroscopic basis of atmospheric radiation physical chemistry
    • 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.
    • Ice and Snow
    • The Sunlight Economy
    • Earth System Models
    • Ricky Rood's “What would happen to climate if we (suddenly) stopped emitting GHGs today?
    • Jacobson WWS literature index
    • Spectra Energy exposed
    • Skeptical Science
    • SOLAR PRODUCTION at Westwood Statistical Studios Generation charts for our home in Westwood, MA
    • Updating the Climate Science: What path is the real world following? From Professors Makiko Sato & James Hansen of Columbia University
    • Risk and Well-Being
    • Exxon-Mobil statement on UNFCCC COP21
    • Warming slowdown discussion
    • 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.
    • "Betting strategies on fluctuations in the transient response of greenhouse warming" By Risbey, Lewandowsky, Hunter, Monselesan: Betting against climate change on durations of 15+ years is no longer a rational proposition.
    • Berkeley Earth Surface Temperature
    • "A field guide to the climate clowns"
    • "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.
    • 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.
    • Social Cost of Carbon
    • Climate impacts on retail and supply chains
    • Solar Gardens Community Power
    • The Carbon Cycle The Carbon Cycle, monitored by The Carbon Project
    • Documenting the Climate Deniarati at work
    • Simple models of climate change
    • "Getting to the Energy Future We Want," Dr Steven Chu
  • Archives

  • Jan Galkowski

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  • Blog Stats

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  • Recent Posts

    • CLIMATE FORWARD from The New York Times 22 September 2026
    • Tamino On The Heat 11 September 2026
    • Rohde, Calvert, Hausfather: “A 0.25° Global Gridded Temperature Data Set for Climate Monitoring” 6 September 2026
    • Professor Terence Tao 30 August 2026
    • “World’s Worst Photographer” 28 August 2026
    • “No, we’re not” 1 August 2026
    • That’s a silly idea, especially about a universe which is fundamentally stochastic. 30 July 2026
    • So much for U.S. leadership in Science and Engineering 30 July 2026
    • “record warm 2026” 27 July 2026
    • Professor Jeff Galkowski won a Whitehead Prize this year 3 July 2026
    • From TJ on the 250th 3 July 2026
    • Professor James Hansen 30 June 2026
    • Insight from Tamino 28 June 2026
    • Climate is Back … 24 June 2026
    • Some Solar in Westwood 22 June 2026
    • Importance of NSF’s Ocean Observatories Initiative 15 June 2026
    • 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
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  • 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
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