Category Archives: modeling

The Birth of CGR Science

Posted on January 20, 2012 by

Guest Post by Willis Eschenbach I was reading a study published in November 2011 in Science mag, paywalled of course. It’s called “The Pace of Shifting Climate in Marine and Terrestrial Ecosystems”, by Burrows et al. (abstract here,  hereinafter B2011). … Continue reading →

Posted in Environment, modeling | Tagged , , , , , , | 156 Comments

Sense and Sensitivity II – the sequel

Posted on January 15, 2012 by

By Christopher Monckton of Brenchley Joel Shore, who has been questioning my climate-sensitivity calculations, just as a good skeptic should, has kindly provided at my request a reference to a paper by Dr. Andrew Lacis and others at the Goddard … Continue reading →

Posted in climate sensitivity, modeling | Tagged , , , , , , , | 206 Comments

Earth’s baseline black-body model – “a damn hard problem”

Posted on January 12, 2012 by

By Robert G. Brown, Duke University (elevated from a WUWT comment) I spent what little of last night that I semi-slept in a learning-dream state chewing over Caballero’s book and radiative transfer, and came to two insights. First, the baseline … Continue reading →

Posted in earth, modeling | Tagged , , , , , , , | 445 Comments

Children just aren’t going to know what hail is…

Posted on January 9, 2012 by

Source of title inspiration here From NOAA Headquarters. Colorado mountain hail may disappear in a warmer future NOAA-led study shows less hail, more rain in region’s future, with possible increase in flood risk Summertime hail could all but disappear from … Continue reading →

Posted in hail, modeling, weather | Tagged , , , , , , , | 102 Comments

Scafetta on his latest paper: Harmonic climate model versus the IPCC general circulation climate models

Posted on January 9, 2012 by

Guest Post by Dr. Nicola Scafetta Herein, I would like to briefly present my latest publication that continues my research about the meaning of natural climatic cycles and their implication for climate changes: Nicola Scafetta, “Testing an astronomically based decadal-scale … Continue reading →

Posted in climate data, IPCC, modeling | Tagged , , , , , , , | 98 Comments

Unified Climate Theory May Confuse Cause and Effect

Posted on December 29, 2011 by

Guest Post by Ira Glickstein The Unified Theory of Climate post is exciting and could shake the world of Climate Science to its roots. I would love it if the conventional understanding of the Atmospheric “Greenhouse” Effect (GHE) presented by … Continue reading →

Posted in climate sensitivity, modeling | Tagged , , , , , , , , | 1,032 Comments

Unified Theory of Climate

Posted on December 29, 2011 by

Note: This was a poster, and adopted into a blog post by the author, Ned Nikolov, specifically for WUWT. My thanks to him for the extra effort in converting the poster to a more blog friendly format. – Anthony Expanding … Continue reading →

Posted in climate sensitivity, modeling | Tagged , , , , , , , | 685 Comments

Shutting down power plants: Imaginary benefits, extensive harm

Posted on December 26, 2011 by

EPA mercury rules for electricity generating units are based on false science and economics Guest post by Craig Rucker The Environmental Protection Agency claims its “final proposed” Maximum Achievable Control Technology (MACT) rules will eliminate toxic pollution from electrical generating … Continue reading →

Posted in energy, Environment, modeling | Tagged , , , , , , , | 200 Comments

Tisdale on IPCC Models Versus Sea Surface Temperature Observations During The Recent Warming Period

Posted on December 19, 2011 by

Guest post by Bob Tisdale OVERVIEW This post compares satellite-based Sea Surface Temperature (SST) anomalies to the hindcasts and projections of the multi-model mean of CMIP3 models. CMIP3 is the archive the IPCC used as the source of their models … Continue reading →

Posted in IPCC, modeling, Sea Surface Temperature | Tagged , , , , , , , | 101 Comments

UCAR on Blocking Highs, heat waves, and modeling limits

Posted on December 8, 2011 by

Dr. Roger Pielke Sr. writes: Candid Admission By UCAR – “Blocking The Way – Predicting The Atmospheric Detours That Lead To Weather Troubles” There was an interesting article in the Fall issue of the UCAR Magazine titled by Bob Henson titled Blocking The … Continue reading →

Posted in heat wave, modeling | Tagged , , , , , , , | 50 Comments

Shades of Foster Grant

Posted on November 20, 2011 by

Tamino Misses The Point And Attempts To Distract His Readers By Bob Tisdale The obvious intent of my recent post “17-Year And 30-Year Trends In Sea Surface Temperature Anomalies: The Differences Between Observed And IPCC AR4 Climate Models” was to illustrate … Continue reading →

Posted in modeling | Tagged , , , , , , , | 81 Comments

Santer’s “17 years needed for a sign of climate change” compared against the IPCC models

Posted on November 19, 2011 by

I recently covered a press release from Dr. Ben Santer where it was claimed that: In order to separate human-caused global warming from the “noise” of purely natural climate fluctuations, temperature records must be at least 17 years long, according … Continue reading →

Posted in IPCC, modeling | Tagged , , , , , , , | 101 Comments

Erratic, extreme, press release puts Princeton climate science in a new light

Posted on November 15, 2011 by

Must be Durban season. From Princeton University here’s a highly charged press release lapped up by some MSM professional worriers today that uses words like “erratic and extreme” to describe that it’s getting rainier in some places, a whole third … Continue reading →

Posted in Durban Climate Conference, modeling, Science | Tagged , , , , | 127 Comments

Tisdale on model initialization in wake of the leaked IPCC draft

Posted on November 15, 2011 by

Should Climate Models Be Initialized To Replicate The Multidecadal Variability Of The Instrument Temperature Record During The 20th Century? Guest post by Bob Tisdale The coupled climate models used to hindcast past and project future climate in the IPCC’s 2007 report … Continue reading →

Posted in IPCC, modeling | Tagged , , , , , , | 120 Comments

An Initial Look At The Hindcasts Of The NCAR CCSM4 Coupled Climate Model

Posted on November 5, 2011 by

Guest post by Bob Tisdale OVERVIEW This post compares the instrument observations of three global temperature anomaly datasets (NINO3, Global, and North Atlantic “Plus”) to the hindcasts of the NCAR couple climate model CCSM4, which was used in a couple … Continue reading →

Posted in modeling | Tagged , , , , , , , | 104 Comments

The Unknown Unknowns of Global Warming

Posted on October 29, 2011 by

Plants, both through decay and respiration, are responsible for over half of the world’s annual carbon dioxide emissions. I mention this fact for one reason and that is to communicate the power of the biosphere upon the atmosphere. Usually, when … Continue reading →

Posted in Carbon dioxide, climate sensitivity, feedbacks, modeling | Tagged , | 60 Comments

Send in the clouds, there ought to be clouds (in models)

Posted on October 27, 2011 by

New tool clears the air on cloud simulations LIVERMORE, Calif. — Climate models have a hard time representing clouds accurately because they lack the spatial resolution necessary to accurately simulate the billowy air masses. But Livermore scientists and international collaborators … Continue reading →

Posted in modeling | Tagged , , | 35 Comments

Dr. Ben Santer speaks on climate modeling, and everything else

Posted on October 21, 2011 by

Today is a day I got not one thing done for myself due to the Berkeley Earth Surface Temperature release sucking all the oxygen out of the climate debate with their pre-peer review release shenanigans. Tonight was no different, as … Continue reading →

Posted in modeling, presentations | Tagged , , , , | 118 Comments

Dust up in climate modeling

Posted on October 13, 2011 by

From the Georgia Institute of Technology Research News Insoluble dust particles can form cloud droplets affecting global and regional climates Cloud formation New information on the role of insoluble dust particles in forming cloud droplets could improve the accuracy of … Continue reading →

Posted in aerosols, modeling | Tagged , , | 42 Comments

Model predicts Arctic sea ice extent

Posted on September 24, 2011 by

From the University of Washington , some great news if it holds predictive power over time in the face of a cyclic, noisy, non-linear system. Model provides successful seasonal forecast for the fate of Arctic sea ice Relatively accurate predictions … Continue reading →

Posted in Arctic, forecasting, modeling, sea ice | Tagged , , | 47 Comments

IPCC, models, HadCRUT, and cherrymandering

Posted on September 22, 2011 by

The Rest of the Cherries: 140 decades of Climate Models vs. Observations by Roy W. Spencer, Ph. D. Since one of the criticisms of our recent Remote Sensing paper was that we cherry-picked the climate models we chose to compare … Continue reading →

Posted in climate data, modeling | Tagged , , , , , | 129 Comments

Study suggests Arctic sea ice loss is not irreversible

Posted on September 21, 2011 by

We covered this topic before on WUWT, but it showed up again in this week’s AGU highlights. Given the attention to the recent Arctic sea ice low and quick turnaround, I thought it would be appropriate to mention again. From … Continue reading →

Posted in Arctic, modeling | Tagged , , , | 69 Comments

Uncertain, impaired, models

Posted on September 19, 2011 by

There’s a runway joke in here somewhere, but it seems that this is a pitch for a new satellite program. From the National Physical Laboratory Uncertain climate models impair long-term climate strategies New calibration satellite required to make accurate predictions, … Continue reading →

Posted in modeling | 93 Comments

Trenberth’s missing heat? Look to the deep

Posted on September 18, 2011 by

From the National Center for Atmospheric Research/University Corporation for Atmospheric Research  an explanation for Global Ocean Heat Content Is Still Flat. Key point from the press release: Observations from a global network of buoys showed some warming in the upper ocean, … Continue reading →

Posted in modeling, oceans, Trenberth's missing heats | Tagged , , | 205 Comments

24 Hours of Climate Reality: Gore-a-thon – Hour 23

Posted on September 15, 2011 by

A new post containing a cartoon from Josh will appear every hour. At the end of the 24 hours, everything will be collated on a single page. Readers are encouraged to post skeptical arguments below, as well as offer comments … Continue reading →

Posted in Al Gore, Gore-a-thon 2011, IPCC, modeling | Tagged , , , , | 40 Comments