Distributed Solar: The Democratizaton of Energy
Category Archives: diffusion processes
Reanalysis of business visits from deployments of a mobile phone app
This reports a reanalysis of data from the deployment of a mobile phone app, as reported in: M. Yauck, L.-P. Rivest, G. Rothman, “Capture-recapture methods for data on the activation of applications on mobile phones“, Journal of the American Statistical … Continue reading
Posted in Bayesian computational methods, biology, capture-mark-recapture, capture-recapture, Christian Robert, count data regression, cumulants, diffusion, diffusion processes, Ecological Society of America, ecology, epidemiology, experimental science, field research, Gibbs Sampling, Internet measurement, Jean-Michel Marin, linear regression, mark-recapture, mathematics, maximum likelihood, Monte Carlo Statistical Methods, multilist methods, multivariate statistics, non-mechanistic modeling, non-parametric statistics, numerics, open source scientific software, Pierre-Simon Laplace, population biology, population dynamics, quantitative biology, quantitative ecology, R, R statistical programming language, sampling, sampling algorithms, segmented package in R, statistical ecology, statistical models, statistical regression, statistical series, statistics, stepwise approximation, stochastic algorithms, surveys, V. M. R. Muggeo
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“Microplastics in the Ocean: Emergency or Exaggeration?” (Morss Colloquium, WHOI)
Update, 2019-10-28 00:34 ET I have compiled notes from the talks above, and from the audience Q&A and documented these in a Google Jam here.
Posted in American Association for the Advancement of Science, bag bans, Claire Galkowski, coastal communities, coasts, diffusion processes, microbiomes, microplastics, NOAA, oceanic eddies, oceanography, oceans, perceptions, phytoplankton, plastics, pollution, quantitative biology, quantitative ecology, science, science education, statistical ecology, WHOI, Woods Hole Oceanographic Institution
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Sampling: Rejection, Reservoir, and Slice
An article by Suilou Huang for catatrophe modeler AIR-WorldWide of Boston about rejection sampling in CAT modeling got me thinking about pulling together some notes about sampling algorithms of various kinds. There are, of course, books written about this subject, … Continue reading
Posted in accept-reject methods, American Statistical Association, Bayesian computational methods, catastrophe modeling, data science, diffusion processes, empirical likelihood, Gibbs Sampling, insurance, Markov Chain Monte Carlo, mathematics, Mathematics and Climate Research Network, maths, Monte Carlo Statistical Methods, multivariate statistics, numerical algorithms, numerical analysis, numerical software, numerics, percolation theory, Python 3 programming language, R statistical programming language, Radford Neal, sampling, slice sampling, spatial statistics, statistics, stochastic algorithms, stochastic search
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The work of Alec Bogdanoff and Carol Anne Clayson on the ocean surface boundary layer
Drs Carol Anne Clayson and Alec Bogdanoff examined evaporation from the ocean surface and energy exchange at the boundary layer of the ocean surface, respectively. See also the interactive illustration here. (The above is from Dr Carol Anne Clayson’s personal … Continue reading
Posted in American Meteorological Association, AMETSOC, atmosphere, climate data, complex systems, differential equations, diffusion processes, dynamical systems, energy flux, fluid dynamics, geophysics, meteorology, oceanography, Principles of Planetary Climate, WHOI, Woods Hole Oceanographic Institution
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“Oh no, not again” (from ATTP)
Response to a paper by Hermann Harde, from Ken Rice at … And Then There’s Physics. Dr Rice cites two other responses as well: One by Gavin Schmidt at RealClimate. One from 2011 by Gavin Cawley from the University of … Continue reading
Posted in American Association for the Advancement of Science, American Meteorological Association, American Statistical Association, AMETSOC, atmosphere, being carbon dioxide, Carbon Cycle, carbon dioxide, chemistry, climate, climate disruption, climate education, Climate Lab Book, David Archer, diffusion, diffusion processes, fossil fuels, geophysics, Global Carbon Project, greenhouse gases, ignorance, physics, Principles of Planetary Climate, Ray Pierrehumbert, science, science education
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You really can’t go home again: An update of “Getting back to 350 ppm CO2 …”
I have made an important update to an earlier post here, Getting back to 350 ppm CO2: You can’t go home again. The message, essentially based upon recent work Tokarska and Zickfield on one hand, and by The Global Carbon … Continue reading
Posted in American Association for the Advancement of Science, Anthropocene, bridge to nowhere, Buckminster Fuller, Carbon Cycle, carbon dioxide, carbon dioxide capture, Carbon Worshipers, clear air capture of carbon dioxide, climate, climate business, climate change, climate data, climate disruption, climate economics, David Archer, diffusion, diffusion processes, ecological services, Eli Rabett, engineering, environment, fossil fuel divestment, fossil fuel infrastructure, fossil fuels, games of chance, geoengineering, geophysics, Glen Peters, Global Carbon Project, global warming, greenhouse gases, Hyper Anthropocene, Principles of Planetary Climate, Ray Pierrehumbert, science, Spaceship Earth, Susan Solomon, Svante Arrhenius, the tragedy of our present civilization, Tokarska and Zickfield, Wordpress, zero carbon
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Global Carbon Dioxide in 3D
Your CO2, my CO2 doesn’t remain with you or me, but mixes broadly and thoroughly over the planet at large. So, we all share responsibility for the damage. Credit: NASA And brought to you by OCO-2.
Posted in American Association for the Advancement of Science, American Meteorological Association, AMETSOC, Anthropocene, atmosphere, carbon dioxide, Carbon Worshipers, civilization, climate, climate change, climate data, climate disruption, corporate litigation on damage from fossil fuel emissions, diffusion, diffusion processes, Donald Trump, dynamical systems, ecology, environment, fluid eddies, geophysics, global warming, greenhouse gases, Hyper Anthropocene, NASA, NCAR
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Getting back to 350 ppm CO2: You can’t go home again
(Update of this piece, included below.) (Major update of this piece included below.) You can’t. It’ll cost much more than 23 times 40 times the Gross World Product to do it. And, in any case, you need to go to … Continue reading
Posted in adaptation, American Association for the Advancement of Science, Anthropocene, atmosphere, bollocks, bridge to nowhere, Carbon Cycle, carbon dioxide, carbon dioxide capture, carbon dioxide sequestration, Carbon Worshipers, chemistry, clear air capture of carbon dioxide, climate, climate change, climate disruption, climate economics, corporate litigation on damage from fossil fuel emissions, David Archer, diffusion, diffusion processes, ecological services, ecology, economics, engineering, environment, environmental law, fossil fuels, geoengineering, global warming, greenhouse gases, Hyper Anthropocene, leaving fossil fuels in the ground, methane, Our Children's Trust, physics, rationality, reason, reasonableness, science, Spaceship Earth, the right to be and act stupid, Wally Broecker, zero carbon
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“Sharon’s Water Problem” (by Paul Lauenstein)
(Click on image to see a bigger version of this figure. Use your browser Back Button to return to this blog.) The town of Sharon, MA, has a water problem. Click on the link and see Paul’s presentation about it. … Continue reading
Posted in adaptation, agriculture, American Meteorological Association, AMETSOC, Anthropocene, Boston, citizen science, climate change, climate disruption, diffusion processes, drought, ecology, Ecology Action, environment, forecasting, global warming, hydrology, Hyper Anthropocene, MA, New England, Paul Lauenstein, precipitation, quantitative ecology, science, statistics, the tragedy of our present civilization, water, Woods Hole Oceanographic Institution
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Repaired R code for Markov spatial simulation of hurricane tracks from historical trajectories
I’m currently studying random walk and diffusion processes and their connections with random fields. I’m interested in this because at the core of dynamic linear models, Kalman filters, and state-space methods there is a random walk in a parameter space. … Continue reading
Posted in American Meteorological Association, American Statistical Association, AMETSOC, Arthur Charpentier, atmosphere, diffusion, diffusion processes, dynamic linear models, dynamical systems, environment, geophysics, hurricanes, Kalman filter, Kerry Emanuel, Lévy flights, Lorenz, Markov chain random fields, mathematics, mathematics education, maths, MCMC, mesh models, meteorological models, meteorology, model-free forecasting, Monte Carlo Statistical Methods, numerical analysis, numerical software, oceanography, open data, open source scientific software, physics, random walk processes, random walks, science, spatial statistics, state-space models, statistical dependence, statistics, stochastic algorithms, stochastics, time series
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“Solar power is contagious. These maps show how it spreads.” (from Vox)
Brad Plumer at Vox writes on take-up patterns of rooftop solar based upon a large dataset from SolarCity. The full article is available at the SolarCity site. Mr Plumer combines it with a report on other studies of solar adoption … Continue reading
Posted in Bloomberg New Energy Finance, BNEF, business, clean disruption, decentralized electric power generation, decentralized energy, demand-side solutions, destructive economic development, diffusion, diffusion processes, disruption, distributed generation, economics, electricity markets, energy, energy utilities, exponential growth, grid defection, investment in wind and solar energy, local generation, Peter Diggle, point pattern analysis, public utility commissions, PUCs, rate of return regulation, regulatory capture, sociology, solar domination, solar energy, solar power, SolarPV.tv, spatial statistics, statistics, stochastics, the energy of the people, the green century, utility company death spiral, zero carbon
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Phytoplankton-delineated oceanic eddies near Antarctica
Excerpt, from NASA: Phytoplankton are the grass of the sea. They are floating, drifting, plant-like organisms that harness the energy of the Sun, mix it with carbon dioxide that they take from the atmosphere, and turn it into carbohydrates and … Continue reading
Posted in AMETSOC, Antarctica, Arctic, bacteria, Carbon Cycle, complex systems, differential equations, diffusion, diffusion processes, dynamic linear models, dynamical systems, Emily Shuckburgh, environment, fluid dynamics, geophysics, GLMs, John Marshall, marine biology, Mathematics and Climate Research Network, NASA, numerical analysis, numerical software, oceanic eddies, oceanography, physics, phytoplankton, science, thermohaline circulation, WHOI, Woods Hole Oceanographic Institution
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Massachusetts Solar Suburbs (a Google group)
I have just created the Massachusetts Solar Suburbs Google group. It’s Welcome Message reads: Welcome to the Massachusetts Solar Suburbs! This group exists to provide a forum for owners of solar installations, typically residential, or serving residences, to share their … Continue reading
Posted in adaptation, Anthropocene, Carbon Tax, Carbon Worshipers, citizenship, civilization, clean disruption, climate, climate change, climate disruption, corporate litigation on damage from fossil fuel emissions, decentralized electric power generation, decentralized energy, destructive economic development, diffusion, diffusion processes, economics, education, efficiency, energy, energy reduction, energy utilities, engineering, environment, ethics, fear uncertainty and doubt, fossil fuel divestment, fossil fuels, global warming, Google, greenhouse gases, Hyper Anthropocene, investing, investment in wind and solar energy, MA, meteorology, microgrids, optimization, physics, planning, politics, public utility commissions, rationality, reasonableness, risk, Sankey diagram, solar energy, solar power, SolarPV.tv, sustainability, Tony Seba, wind energy, wind power, zero carbon
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November Hottest Ever, and Christmas Likely To bring Record Warmth in The East (Dan’s Wild Wild Science Journal; AGU Blogosphere)
The long-range guidance is showing strong indications that the incredible December warmth in the Eastern U.S. will continue to the end of the month. A blast of cold air will arrive later this week,… (Click on image for larger map, … Continue reading
Posted in AMETSOC, capricious gods, climate, climate models, Dan Satterfield, differential equations, diffusion processes, dynamical systems, ensembles, ENSO, environment, forecasting, geophysics, Hyper Anthropocene, meteorology, NCAR, NOAA, numerical software, physics, science, the right to know, wave equations
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El Nino In A Can – Dan’s Wild Wild Science Journal – AGU Blogosphere
Click the image above to see a video from the GFDL CM2.6 climate model. This is NOT this year’s El Nino. When you start a climate model in which the ocean and the land and atmosphere can inte… Source: El … Continue reading
Posted in AMETSOC, astrophysics, climate, climate change, climate models, computation, Dan Satterfield, differential equations, diffusion, diffusion processes, dynamical systems, ENSO, environment, forecasting, geophysics, global warming, Hyper Anthropocene, Kerry Emanuel, mathematics, maths, mesh models, meteorology, model comparison, NASA, NCAR, NOAA, numerical analysis, oceanography, physics, Principles of Planetary Climate, rationality, Ray Pierrehumbert, reasonableness, science, Spaceship Earth, stochastics, supercomputers, the right to know, thermodynamics, time series
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On infrared radiation and Earth temperature
Good to review the basics once again. Professors Dave Archer and Ray Pierrehumbert do, in my opinion, some of the best introductions: Infrared radiation and planetary temperature.
Posted in astrophysics, carbon dioxide, climate, climate change, climate models, David Archer, differential equations, diffusion, diffusion processes, environment, evidence, geophysics, global warming, greenhouse gases, meteorology, methane, oceanography, physics, Principles of Planetary Climate, rationality, Ray Pierrehumbert, reasonableness, science, Svante Arrhenius
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Is Earth Much More Sensitive to CO2 Than Thought?
Originally posted on Climate Denial Crock of the Week:
A nahcolite from the Eocene Green River Formation. Credit: Timothy Lowenstein Phys.org: Ancient climates on Earth may have been more sensitive to carbon dioxide than was previously thought, according to new…
Posted in Anthropocene, Carbon Cycle, carbon dioxide, climate, climate change, climate data, climate disruption, differential equations, diffusion processes, dynamic linear models, dynamical systems, environment, fossil fuels, generalized linear models, geophysics, global warming, Hyper Anthropocene, Principles of Planetary Climate, risk, science
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On differential localization of tumors using relative concentrations of ctDNA. Part 2.
Part 1 of this series introduced the idea of ctDNA and its use for detecting cancers or their resurgence, and proposed a scheme whereby relative concentrations of ctDNA at two or more sites after controlled disturbance might be used to … Continue reading
No turning back: On the effectiveness of artificially removing emitted CO2 from atmosphere for remediating climate disruption
A new paper, by Tokarska and Zickfeld, just published in the Institute Of Physics (“IOP”) Environmental Research Letters examines the question of what happens to climate change and disruption should, at some time, we collectively decide it’s too bad and … Continue reading
Posted in adaptation, Anthropocene, carbon dioxide, carbon dioxide capture, citizenship, civilization, climate, climate change, climate disruption, denial, diffusion processes, dynamical systems, environment, ethics, forecasting, fossil fuels, games of chance, geoengineering, geophysics, global warming, Hyper Anthropocene, ignorance, James Hansen, oceanography, physics, Principles of Planetary Climate, rationality, reasonableness, risk, science, scientific publishing, sea level rise, statistics, sustainability, the right to know, thermodynamics, zero carbon
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New Paper Shows Global Climate Model Errors are Significantly Less Than Thought (Dan’s Wild Wild Science Journal)
New Paper Shows Global Climate Model Errors are Significantly Less Than Thought – Dan's Wild Wild Science Journal – AGU Blogosphere. The paper is here, unfortunately behind a paywall. I wonder if they looked at the temperature distributions’ second moments? … Continue reading
Posted in Arctic, carbon dioxide, climate, climate change, climate disruption, climate models, differential equations, diffusion processes, ensembles, environment, forecasting, geophysics, global warming, HadCRUT4, meteorology, model comparison, NASA, NCAR, NOAA, oceanography, open data, physics, prediction, rationality, reasonableness, science, statistics, Tamino, time series
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Sea Surface Anomalies
(Hat tip to Susan Stone.) The graphic below shows sea surface temperature anomalies relative to the 1971-2000 baseline First data are courtesy of the Climate Reanalyzer, a joint project of the Climate Change Institute at the University of Maine, and … Continue reading
Posted in Anthropocene, carbon dioxide, climate, climate change, climate disruption, climate education, differential equations, diffusion processes, dynamical systems, ecology, ENSO, environment, forecasting, geophysics, global warming, Hyper Anthropocene, IPCC, mathematics, MCMC, NASA, NCAR, NOAA, oceanography, open data, physics, Principles of Planetary Climate, rationality, reasonableness, risk, science, science education, sea level rise, statistics, sustainability, the right to know, time series, transparency
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“Regulating Government”, from Overcoming Bias
Regulating Government. This post is about governments — with the advice of big banks — gaming pension accounts so they appear more solvent than they are.
One year, and ten years of carbon dioxide concentration readings, Mauna Loa
From NOAA.
Posted in carbon dioxide, Carbon Tax, climate, climate change, climate disruption, climate education, consumption, diffusion processes, dynamical systems, ecology, environment, ethics, exponential growth, forecasting, fossil fuel divestment, geophysics, investment in wind and solar energy, IPCC, meteorology, NOAA, open data, Principles of Planetary Climate, rationality, reasonableness, risk, science, science education, Scripps Institution of Oceanography, statistics, sustainability, temporal myopia, the right to know, time series, zero carbon
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“NOAA temperature record updates and the ‘hiatus’” (from Gavin at REALCLIMATE)
NOAA temperature record updates and the ‘hiatus’. No doubt there’ll be, as Dr Schmidt says, a howl of protests that the data are “being manipulated”. There’s more discussion by Professor Mann. But, more to the point, it looks like we’re … Continue reading
Posted in chance, citizen science, climate, climate change, climate disruption, climate education, climate models, diffusion processes, dynamical systems, energy, ensembles, forecasting, geophysics, global warming, hiatus, maths, meteorology, model comparison, NASA, NCAR, NOAA, oceanography, physics, rationality, spatial statistics, statistics, stochastics, temporal myopia, time series
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Eli Rabett on the APS “Draft Statement on Earth’s Changing Climate”
This is from Rabett Run. The American Physical Society (“APS”) is working on a draft statement on climate change. Compared to other scientific organizations (and my own primary society, the American Statistical Association), it’s sure taking them a long time. … Continue reading
Posted in carbon dioxide, Carbon Tax, chemistry, citizenship, civilization, climate, climate change, climate education, diffusion processes, ecology, environment, fossil fuel divestment, geophysics, meteorology, methane, NCAR, NOAA, oceanography, open data, politics, Principles of Planetary Climate, rationality, reasonableness, risk, science, science education, Scripps Institution of Oceanography, sea level rise, solar power, testing, the right to know, time series, WHOI, wind power
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“Barking mad”
Today was a big day at the U.S. National Academy of Sciences (“NAS”). The Academy released two important climate reports, each dealing with one of two categories of global countermeasures for the effects of dumping unprecedented amounts of carbon dioxide … Continue reading
Posted in astrophysics, bridge to nowhere, carbon dioxide, carbon dioxide capture, carbon dioxide sequestration, Carbon Tax, citizenship, civilization, climate, climate change, climate education, demand-side solutions, diffusion processes, ecology, economics, engineering, environment, ethics, forecasting, games of chance, geoengineering, geophysics, history, humanism, IPCC, meteorology, NCAR, NOAA, oceanography, physics, Principles of Planetary Climate, rationality, Ray Pierrehumbert, reasonableness, science, science education, sea level rise, the right to know
Tagged albedo modification
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Models don’t over-estimate warming?
Originally posted on …and Then There's Physics:
I thought I might write about the new paper by Jochem Marotzke and Piers Forster called Forcing, feedback and internal variability in global temperature trends. It’s already been discussed in a Carbon…
Posted in astrophysics, carbon dioxide, chemistry, citizen science, citizenship, civilization, climate, climate change, climate education, differential equations, diffusion processes, ecology, education, energy, forecasting, geophysics, IPCC, mathematics, meteorology, model comparison, NASA, NCAR, NOAA, oceanography, physics, Principles of Planetary Climate, rationality, Ray Pierrehumbert, reasonableness, science, statistics, the right to know
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engineering and understanding with stable models
Stable distributions or Lévy -stable models is a class of probability distributions which contains the Gaussian, the Cauchy (or Lorentz), and the Lévy distribution. They are parameterized by an which is . Values of of 1 or less give distributions … Continue reading
Posted in approximate Bayesian computation, Bayesian, citizen science, climate, climate change, climate education, differential equations, diffusion processes, ecology, economics, forecasting, geophysics, information theoretic statistics, IPCC, mathematics, mathematics education, maths, meteorology, model comparison, NOAA, oceanography, physics, rationality, reasonableness, risk, science, science education, stochastic search, the right to know
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