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: Botany

Climacium in Lawns

Posted on 20 March 2025 by ecoquant

https://www.linkedin.com/posts/michelle-price-80657a171_welovemosses-ugcPost-7307433929911726080-jVG6?utm_source=share&utm_medium=member_android&rcm=ACoAAE-ACSUBqFHQ9Sxa8pZNDWlNBLUfXlBh_mw

Posted in Botany, bryology, bryophytes, mosses | Tagged Botany, bryophytes, ecology, mosses | Leave a comment

Moss of the Week, 2021-05-31: Pohlia nutans

Posted on 31 May 2021 by ecoquant

All photographs by Jan Galkowski, 2021.

Posted in American Bryological and Lichenological Society, Botany, bryology, bryophytes, mosses | Tagged Botany, bryophytes, mosses | Leave a comment
  • Distributed Solar: The Democratizaton of Energy

  • Blogroll

    • WEAPONS OF MATH DESTRUCTION Cathy O’Neil’s WEAPONS OF MATH DESTRUCTION,
    • ggplot2 and ggfortify Plotting State Space Time Series with ggplot2 and ggfortify
    • Ted Dunning
    • "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
    • 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.
    • Earle Wilson
    • The Mermaid's Tale A conversation about biological complexity and evolution, and the societal aspects of science
    • Gabriel's staircase
    • Tony Seba Solar energy, electric vehicle, energy storage, and business disruption professor and visionary
    • Number Cruncher Politics
    • Team Andrew Weinberg Walking September 8th for the Jimmy Fund!
    • "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
    • American Statistical Association
    • 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
    • Brian McGill's Dynamic Ecology blog Quantitative biology with pithy insights regarding applications of statistical methods
    • John Cook's reasons to use Bayesian inference
    • Awkward Botany
    • Survey Methodology, Prof Ron Fricker http://faculty.nps.edu/rdfricke/
    • Earth Family Alpha Michael Osborne’s blog (former Executive at Austin Energy, now Chairman of the Electric Utility Commission for Austin, Texas)
    • Ives and Dakos techniques for regime changes in series
    • 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
    • WEAPONS OF MATH DESTRUCTION, reviews Reviews of Cathy O’Neil’s new book
    • Earth Family Beta MIchael Osborne’s blog on Science and the like
    • Giant vertical monopolies for energy have stopped making sense
    • Professor David Draper
    • 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.”
    • Woods Hole Oceanographic Institution (WHOI)
    • Subsidies for wind and solar versus subsidies for fossil fuels
    • The Keeling Curve: its history History of the Keeling Curve and Charles David Keeling
    • All about Sankey diagrams
    • The Alliance for Securing Democracy dashboard
    • Beautiful Weeds of New York City
    • GeoEnergy Math Prof Paul Pukite’s Web site devoted to energy derived from geological and geophysical processes and categorized according to its originating source.
    • Brendon Brewer on Overfitting Important and insightful presentation by Brendon Brewer on overfitting
    • Risk and Well-Being
    • 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.
    • 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/
    • Comprehensive Guide to Bayes Rule
    • 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”
    • Los Alamos Center for Bayesian Methods
    • 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/
    • Charlie Kufs' "Stats With Cats" blog “You took Statistics 101. Now what?”
    • distributed solar and matching location to need
    • Dollars per BBL: Energy in Transition
    • Healthy Home Healthy Planet
    • Quotes by Nikola Tesla Quotes by Nikola Tesla, including some of others he greatly liked.
    • Carl Safina's blog One of the wisest on Earth
  • climate change

    • The HUMAN-caused greenhouse effect, in under 5 minutes, by Bill Nye
    • James Powell on sampling the climate consensus
    • 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
    • Wind sled Wind sled: A zero carbon way of exploring ice sheets
    • Tamino's Open Mind Open Mind: A statistical look at climate, its science, and at science denial
    • History of discovering Global Warming From the American Institute of Physics.
    • David Appell's early climate science
    • The Green Plate Effect Eli Rabett’s “The Green Plate Effect”
    • 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.
    • "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.
    • "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
    • Reanalyses.org
    • Thriving on Low Carbon
    • Earth System Models
    • `The unchained goddess' 1958 Bell Telephone Science Hour broadcast regarding, among other things, climate change.
    • 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.
    • "Getting to the Energy Future We Want," Dr Steven Chu
    • 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.
    • Anti—Anti-#ClimateEmergency Whether to declare a climate emergency is debatable. But some critics have gone way overboard.
    • 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
    • Energy payback period for solar panels Considering everything, how long do solar panels have to operate to offset the energy used to produce them?
    • Climate Change Denying Organizations
    • Dessler's 6 minute Greenhouse Effect video
    • 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%.
    • Nick Bower's "Scared Scientists"
    • Grid parity map for Solar PV in United States
    • And Then There's Physics
    • Sir David King David King’s perspective on climate, and the next thousands of years for humanity
    • "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.
    • Updating the Climate Science: What path is the real world following? From Professors Makiko Sato & James Hansen of Columbia University
    • Eli on the spectroscopic basis of atmospheric radiation physical chemistry
    • Tell Utilities Solar Won't Be Killed Barry Goldwater, Jr’s campaign to push for solar expansion against monopolistic utilities, as a Republican
    • Skeptical Science
    • Rabett Run Incisive analysis of climate science versus deliberate distraction
    • World Weather Attribution
    • 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.
    • Berkeley Earth Surface Temperature
    • Climate at a glance Current state of the climate, from NOAA
    • Jacobson WWS literature index
    • “Ways to [try to] slow the Solar Century''
    • Équiterre Equiterre helps build a social movement by encouraging individuals, organizations and governments to make ecological and equitable choices, in a spirit of solidarity.
    • HotWhopper: It's excellent. Global warming and climate change. Eavesdropping on the deniosphere, its weird pseudo-science and crazy conspiracy whoppers.
    • Wally Broecker on climate realism
    • Ice and Snow
    • weather blocking patterns
    • MIT's Climate Primer
    • Andy Zucker's "Climate Change and Psychology"
    • SolarLove
    • Exxon-Mobil statement on UNFCCC COP21
    • On Thomas Edison and Solar Electric Power
  • Archives

  • Jan Galkowski

    • 1 ecoquant
  • Blog Stats

    • 118,673 hits
  • Recent Posts

    • “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
    • 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
  • Follow Blog via Email

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

    Join 130 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...