Sentences with phrase «model sensitivity with»

How would that affect modelled sensitivity with feedbacks?

Not exact matches

Surely an unplanned blunder on Newsweek's part, but a blunder nonetheless (perhaps worse in the long run exactly because it was unconscious and indicates not deliberate discrimination but a naive lack of sensitivity) A balance of exceptional model elders with equal numbers of average everyday folk would provide a more accurate picture of the aging as they really are, with their very human combinations of merits and faults.

Once the premodern virtuecrats have been dispatched, postmodern virtuecrats like Nash and his role model, Richard Rorty (when he isn't joshing), can inculcate «the spirit of postmodern virtues,» starting with «a sensitivity to the postmodern realities of incommensurability, indeterminacy, and nonfoundationalism.»

The machine's unique self - learning Genetic Algorithm (GA) technology offers maximum detection sensitivity and reliability, with the most sophisticated models able to spot impurities down to 0.3 mm in size.

This model was chosen because of its high sensitivity and the ease with which it will detect all magnetic and non-magnetic metal contamination — even when contamination is enclosed in the product.

Through responding with sensitivity and positive discipline, where we've modeled to our kids how to resolve conflict, we don't have to do nearly as much policing as some parents as our kids are just behaving the way we've taught them.

Dr Ryan Hossaini of Lancaster University and colleagues use simulations with a global chemical transport model to examine the sensitivity of future stratospheric chlorine and ozone levels to sustained dichloromethane growth.

The reason, it seems, has to do with Mexico City's unusual sensitivity to earthquakes and the efforts it has made to compensate, which could serve as a model for preparedness in the developing world.

Until now, even climatologists have assumed that their models simulate different temperature rises because they respond with different degrees of sensitivity to increased amounts of solar energy in the atmosphere.

This optimisation will allow the team to increase the number of signal events, and reach the sensitivity required to show to what extent this process agrees with the Standard Model prediction.

They used two different climate models, each with a different sensitivity to carbon dioxide, to project California's future under two scenarios: an optimistic one, in which we only double the level of carbon dioxide in the atmosphere — since the 19th century we've already increased it by about a third — and a pessimistic scenario, in which we more than triple CO2.

A 2000 - year transient climate simulation with the Community Climate System Model shows the same temperature sensitivity to changes in insolation as does our proxy reconstruction, supporting the inference that this long - term trend was caused by the steady orbitally driven reduction in summer insolation.

The model had a fairly high climate sensitivity to begin with, predicting a warming of 5.15 °C.

When the scientists compared the output of climate models with a decade of satellite measurements of relative humidity, they found that the models that best reproduced observed conditions were built on the premise that climate sensitivity is relatively high — 7 degrees F or more.

Isaac Held, a National Oceanic and Atmospheric Administration climate scientist, said he agreed with the researchers about the «the importance of getting the ice - liquid ratio in mixed - phase clouds right,» but he doesn't agree that global climate models generally underestimate climate sensitivity.

The sensitivity result from the modeling experiments should be taken «with a grain of salt,» she said.

Many psychological factors could have confounded the results — differential sensitivity to gains and losses, for example — but Cavanagh and Frank controlled for those with the help of a sophisticated computer model that accounts for and statistically disentangles the relationship of bias and theta from those other influences.

Michael Mann, a meteorology professor at Penn State who was not involved with the study, said it's «speculative» but «plausible» that global climate models have been underestimating climate sensitivity by assuming too much cloud glaciation.

These longer response times are consistent with models of how visual neurons enhance sensitivity at low light intensities, but they could pose a challenge for moths feeding from swaying flowers.

Using an experimental model, researchers were able to identify a region of a chromosome that was causally associated with differences in sensitivity to the stimulant properties of methamphetamine.

However, studies evaluating model performance on key observed processes and paleoclimate evidence suggest that the higher end of sensitivity is more likely, partially conflicting with the studies based on the recent transient observed warming.

Taken together, these data are consistent with interallelic complementation of UV sensitivity in cells but underscore the lack of any correlation between UV - related repair characteristics and TTD progeroid phenotypes in animal models.

Hopefully, more refined work with recent and future data, and incorporation of research into the coupling mechanisms themselves, will allow us to validate the model climate sensitivities to the various forcings, and confidently reproduce multidecadal internal climate modes.

On the face of it the range of the IPCC models is centrally within the A&H 90 % range, but visual inspection of Figure 1 suggests that A&H find that there is about a 45 % probability that climate sensitivity is below the lower end of the range quoted by Meehl in August 2004 (Of course the IPCC draft report, which I have not seen, may include models with lower sensitivity than 2.6 ºC).

From at least Lorius et al (1991)-- when we first had reasonable estimates of the greenhouse gases from the ice cores, to an upcoming paper by Schneider von Deimling et al, where they test a multi-model ensemble (1000 members) against LGM data to conclude that models with sensitivities greater than about 4.3 ºC can't match the data.

While the study conducts a sensitivity analysis that includes one scenario with higher levels of production subsidies, the fact that the model's outputs seem to barely register a tripling of production subsidies raises some questions, especially in light of the findings of the other recent U.S. study led by the Stockholm Environment Institute and EarthTrack described above.

We show elsewhere (8) that a forcing of 1.08 W / m2 yields a warming of 3/4 °C by 2050 in transient climate simulations with a model having equilibrium sensitivity of 3/4 °C per W / m2.

About the transfer sensitivity to 22 years, Z22y = 0.17 + / -0.06 K / W / m ^ 2, we have clearly explained in our paper that this is approximately 1.5 times larger than Z11y and this is in agreement with theoretical energy balance model estimates such as Wigley (1988) or Foukal et al (2004).

Where climate sensitivity is estimated in studies involving comparing observations with values simulated by a forced climate model at varying parameter settings (see Appendix 9.

A sensitivity study for solar in the HadCM3 model showed that it probably underestimates solar with a factor 2 (see Stott ea.)

There are, incidentally, other scientific problems with the paper: notably that the model used was only suitable for small perturbations but the results are for rather large perturbations; and that the estimate of CO2 sensitivity was too low by a factor of about 3.

The climate sensitivity is an output of complex models (it is not decided ahead of time) and it doesn't help as much with the details of the response (i.e. regional patterns or changes in variance), but it's still quite useful for many broad brush responses.

Such studies can reasonably account for the observed variations as a response to solar and volcanic forcing (and a few secondary things) with energy balance climate models tuned to have a climate sensitivity equivalent to 2.5 C per doubling of CO2.

Just for the sake of illustration, though, here's one scenario where higher Holocene variability could go along with lower climate sensitivity: Suppose that some unknown stabilizing mechanism makes the real world less sensitive to radiative forcing than our current models.

Patients (for whose care the movement exists) must demand better evidence, better presented, better explained, and applied in a more personalised way with sensitivity to context and individual goals.48 There are already some models of good practice here.

However, a model with a very low sensitivity, say 1 deg C, would have fallen well below the observed trends.

does fit the temperature trend to an acceptable level, if one should reduce the sensitivity for CO2 / aerosols far enough... Current models also can reproduce other transitions (LGM - Holocene) with a reasonable accuracy, but this is mainly in periods where there is a huge overlap between temperature (as initiator) and CO2 / CH4 levels (as feedback).

For large animals, like hippo and buffalo, their sensitivity to change — especially with predictions of more frequent and prolonged drought — means they don't do well in any of the future scenarios modelled by the park's scientific teams.

Stowasser, M., K. Hamilton, and G.J. Boer, 2006: Local and global climate feedbacks in models with differing climate sensitivity.

Le Treut, H., Z.X. Li, and M. Forichon, 1994: Sensitivity of the LMD general circulation model to greenhouse forcing associated with two different cloud water parametrizations.

Hourdin, F., et al., 2006: The LMDZ4 general circulation model: Climate performance and sensitivity to parameterized physics with emphasis on tropical convection.

Govindasamy, B., et al., 2005: Increase of the carbon cycle feedback with climate sensitivity: results from a coupled and carbon climate and carbon cycle model.

This paper suggests that models with sensitivity around 4ºC did the best, though they didn't give a formal estimation of the range of uncertainty.

Rather, their analysis shows that if you compare the LGM land cooling with the model land cooling, then the model that fits the land best has much higher GLOBAL climate sensitivity than you get for best fit if you use ocean data.

Wigley et al. (2005b) demonstrate that the analysis method of Douglass and Knox (2005) severely underestimates (by a factor of three) climate sensitivity if applied to a model with known sensitivity.

Ideally we might prefer a full Earth Systems Sensitivity approach with the computationally expensive modeling that has evidently been deemed too expensive to date.

But to reiterate: the difference between climate sensitivity estimates based on land vs. ocean data indicates that something is seriously wrong, either with the model, or the data, or some of both.

What this is saying I think is that no one had managed at that point to build a physics - based model which produces a very high sensitivity while agreeing well with observations such as the effect of the Pinatubo eruption.

In the response by raypierre - I agree about the problems with simple energy balance model and its lack of spatial representation, but it's tough to fault the authors for the lack of cloud detail, since the science is not up to the task of solving that problem (and doing so would be outside the scope of the paper; very few paleoclimate papers that tackle the sensitivity issue do much with clouds).

The basic idea is that across the CMIP3 models there was a strong correlation of mid-tropospheric humidity variations with the model sensitivity, and combined with observations of the real world variations, this gives a way to suggest which models are most realistic, and by extension, what sensitivities are more likely.