I spoke to Syukuro Manabe, one of the founders
of modern climate models and a researcher at the GFDL about this in Atlanta last month.»
Not exact matches
It would be like trying to
model 1000 years
of global
climate change on a TRS - 80 computer when it takes a
modern 16,000 processor supercomputer a week to process the data.
I confess that I have become somewhat blasé about the range
of exciting — I think revolutionary is probably more accurate — technologies that we are rolling out today: our work in genomics and its translation into varieties that are reaching poor farmers today; our innovative integration
of long — term and multilocation trials with crop
models and
modern IT and communications technology to reach farmers in ways we never even imagined five years ago; our vision to create a C4 rice and see to it that Golden Rice reaches poor and hungry children; maintaining productivity gains in the face
of dynamic pests and pathogens; understanding the nature
of the rice grain and what makes for good quality; our many efforts to change the way rice is grown to meet the challenges
of changing rural economies, changing societies, and a changing
climate; and, our extraordinary array
of partnerships that has placed us at the forefront
of the CGIAR change process through the Global Rice Science Partnership.
Professor Dan Lunt, from the School
of Geographical Sciences and Cabot Institute at the University
of Bristol said: «Because
climate models are based on fundamental scientific processes, they are able not only to simulate the
climate of the
modern Earth, but can also be easily adapted to simulate any planet, real or imagined, so long as the underlying continental positions and heights, and ocean depths are known.»
I can read any peer - reviewed article I like on
modern climate models, but until I go through much
of the process
of building, running, validation, discussing with colleagues how they solved particular wrinkles etc
of some
models, I am unlikely to fully comprehend
climate modelling as a skilled craft.
Future forecasts
of climate models forced with greenhouse gas levels as high as
modern ones tend to result in Pliocene - like
climate (~ 3 million years ago) when sea levels were estimated to be 14 meters higher than they are today.
To put it another way,
modern climate models are simulations
of physics — thermodynamics, fluid dynamics, some chemistry, and in some cases a little simulated biology.
Does this mean that the hypothesis
of nuclear winter does not survive testing by
modern climate models?
He explains how he once thought that
climate change theory was based solely on computer
models, where in fact it's based on scientific measurements
of both
modern and ancient
climates.
They took the amount
of soot (based on geologic record) and put that into a
modern climate model.
Our RAV4 was a top - tier Limited
model that goes beyond the entry LE trim with interior enhancements such as dual - zone
climate controls, autodimming rearview mirror, heated front bucket seats, and SofTex trim for all seats and door trim — SofTex being a nice and
modern way
of saying leatherette.
Options Included: 4 - Wheel ABS, 4 - Wheel Disc Brakes, A / C, Adjustable Steering Wheel, Aluminum Wheels, Cassette, CD Player, Cell Phone Hookup,
Climate Control, Cruise Control, Driver Air Bag, Front Wheel Drive, Gasoline Fuel, Keyless Entry, Passenger Air Bag, Power Door Locks, Power Driver Seat, Power Passenger Seat, Premium Sound System, Tires - Front All - Season, Tires - Rear All - Season, Vehicle Anti-Theft SystemOur Infiniti sedan offers a lot
of modern day goodness for a 1996 year
model!
I can read any peer - reviewed article I like on
modern climate models, but until I go through much
of the process
of building, running, validation, discussing with colleagues how they solved particular wrinkles etc
of some
models, I am unlikely to fully comprehend
climate modelling as a skilled craft.
On July 23, I wrote about the rocky rollout, prior to peer review,
of «Ice Melt, Sea Level Rise and Superstorms: Evidence from Paleoclimate Data,
Climate Modeling, and
Modern Observations that 2 °C Global Warming is Highly Dangerous.»
Future forecasts
of climate models forced with greenhouse gas levels as high as
modern ones tend to result in Pliocene - like
climate (~ 3 million years ago) when sea levels were estimated to be 14 meters higher than they are today.
in the meantime, in the absence
of reliable
climate models or any certainty
of «how much
climate may change,» how many trillions should we spend and how far backward must
modern industrial civilization be propelled by imposing draconian co2 emissions cuts?
The papers questioned everything from the relative role
of natural mechanisms in changes to the
climate system vis - à - vis increased CO2 concentrations, the allegedly «unprecedented» nature
of modern climate phenomena such as warming, sea levels, glacier and sea ice retreat, and the efficacy and reliability
of computer
climate models for projecting future
climate states.
(M1 & M2): We are the very
model for all
modern Climate Modellers We forecast things for foolish kings and not precocious toddlers By using tricks that would excite a high priest
of the Aztecs For example those subjective «priors» in Baysian stitastecs??
Climate Models smooth the data for the past ten thousand years and then put
modern warming on the end
of the stick.
As we have seen, there are bad
climate scientists who rig the computer
models representing a huge rise in the Earth's overall average temperature and there are good
climate scientists who have waged a long and increasingly successful effort to debunk the greatest hoax
of the
modern era.
Farmers, unions, social organizations, indigenous peoples, women and youth (at the national, regional and global level) have come together to demand
climate justice and fight against the consumerist and extractivist
model that, along with the capitalism and neoliberalism systems
of the
modern world, is harming Mother Earth.
The initial title
of «Ice melt, sea level rise and superstorms: evidence from paleoclimate data,
climate modeling, and
modern observations that 2 °C global warming is highly dangerous» had the final phrase changed to «could be dangerous.»
In addition to running
climate models, the researchers compared
modern warming to similar temperature increases that happened approximately 120,000 years ago in a period known as the Eemian, when global sea level was 5 to 9 meters (between 16 and 30 feet) higher than it is today due to the release
of glacial water.
«There's a lot more money and funding to produce
modern climate products like these advanced
climate models, than there is wallowing around in some third world pit
of a storage shed and unearthing a bunch
of paper records,» says Allen.
Using
modern measurements
of air temperature, incoming / outgoing radiation, and ocean temperature / heat content should provide much more robust techniques
of climate model validation.
I'll say again... Lindzen, Spencer, and some others catch a lot
of heat for attempts to verify
climate models by some
of the more
modern, more accurate measures, but I believe they are moving in the right direction.
«scientists have assumed» «The
climate models assume» «assumption that Natural CO2 is totally fixed and unchanging» «if you assume a long lifetime for atmospheric CO2 ″ «falsification
of the basic assumption» «it requires assumptions that violate empirical knowledge» «assumed so that the ice cores and
modern measurements fit together» «arbitrary and unjustified assumption»
Modern climate models simulate the conditions
of the earth fairly well, albeit not perfectly.
That the
climate model need not work is perfectly acceptable to the Post Modern (Climate) Scientists because their model of science has no Cause & Effect, so it has no way to predict, and can have no standard that the model
climate model need not work is perfectly acceptable to the Post
Modern (
Climate) Scientists because their model of science has no Cause & Effect, so it has no way to predict, and can have no standard that the model
Climate) Scientists because their
model of science has no Cause & Effect, so it has no way to predict, and can have no standard that the
models work.
More substantial changes would be along the lines
of «Exploring potential impacts
of a 2C world using insights from paleo
climate records,
modern observations and
climate modelling» or «Exploring the potential for tipping points in the
climate system before 2C».
Above all, these supposed
modeling experts and
climate scientists need to terminate their biases and their evangelism
of political agendas that seek to slash fossil fuel use, «transform» our energy and economic systems, reduce our standards
of living, and «permit» African and other impoverished nations to enter the
modern era only in a «sustainable manner,» as callous elitists often insist.
It is still not well understood how
model biases in simulation
of modern climate affect
climate sensitivity.
These records can then be integrated with observations
of Earth's
modern climate and placed into a computer
model to infer past as well as predict future
climate.
Our analysis is based on about equal parts
of information gleaned from paleoclimate studies,
climate modeling, and
modern observations
of ongoing
climate changes.
Modern numerical
models of weather and
climate are over half a century old.
To better understand these discrepancies, a recent study published in Geophysical Research Letters investigates the drivers
of changes in deep ocean circulation across a range
of modern and Last Glacial Maximum (LGM, ~ 21000 years ago)
climate simulations from the latest Paleoclimate
Modelling Intercomparison Project (PMIP).
But the
modern range
of estimates is based on more lines
of evidence and better methodology (analyzing recent observations, better
models, and investigations into pre-human
climate conditions), which give about the same picture for now.
AMO / PDO on the other hand are system states that last 20 - 40 years, and there's very good reasons to think that they are the cause
of the entire
modern warming, these should be
modeled by GCM's, but they don't do this either, and they have a far bigger effect on «
climate» while the smaller scale chaotic artifacts have no effect on «
climate».
Despite long searches for «fatal flaws» in
modern climate models, a handful
of contrarians still have no supporting evidence.
Despite the fact that both the
models and the YD hypothesis indicate changes in heat transport can affect the global temperature, and in the case
of the YD so dramatically temperatures go against the forcing trend, you are steadfast in your beliefs that it is impossible that any long term trend in heat transport can be affecting
modern climate.
Indeed ACP does not have strong roots in paleo -
climate, while the sister journal «Climate of the Past» does not address modern climate mo
climate, while the sister journal «
Climate of the Past» does not address modern climate mo
Climate of the Past» does not address
modern climate mo
climate modeling.
The multidisciplinary aspect
of the paper made it difficult to chose the journal for this work, that covers paleo -
climate,
modern observations and
climate modelling.
Eli, and the bunnies, have been following the on line review
of Ice melt, sea level rise and superstorms: evidence from paleoclimate data,
climate modeling, and
modern observations that 2 °C global warming is highly dangerous by J. Hansen, M. Sato, P. Hearty, R. Ruedy, M. Kelley, V. Masson - Delmotte, G. Russell, G. Tselioudis, J. Cao, E. Rignot, I. Velicogna, E. Kandiano, K. von Schuckmann, P. Kharecha, A. N. Legrande, M. Bauer, and K. - W.
Modern predictive
models require data about the specific mechanisms
of change too, in order to better project the response to
climate change.
It's an observation, and the observed range
of natural variation in response to (say) solar cycles are incorporated into
modern climate models.
Researchers investigated the response
of Atlantic Meridional Overturning Circulation (AMOC) to the rise
of atmospheric CO2 in the NCAR
Climate System
Model version 3, with the focus on the different responses under
modern and glacial periods.
That might have changed this week with the coverage
of announcement
of «Ice Melt, Sea Level Rise and Superstorms: Evidence from Paleoclimate Data,
Climate Modeling, and
Modern Observations that 2 °C Global Warming is Highly Dangerous» by James Hansen and 16 other eminent scientists.
The injection
of stratospheric aerosols from the eruption
of Mt. Pinatubo was noted as the first
modern test
of a known radiative forcing, and indeed one
climate model accurately predicted the temperature response (Hansen et al., 1992).
«It is unlikely that coastal cities or low - lying areas such as Bangladesh, European lowlands, and large portions
of the United States eastern coast and northeast China plains could be protected against such large sea level rise,» states a report co-authored by Hansen, titled «Ice Melt, Sea Level Rise and Superstorms: Evidence from Paleoclimate Data,
Climate Modeling, and
Modern Observations that 2 °C Global Warming is Highly Dangerous».
Instead
climate scientists have developed scientific predictive techniques (aka computer
climate models) that are informed by the paleoclimatic data we have, but that also incorporate the differences between the
climate of modern humanity and the analyzed paleoclimates into their analyses.