Sentences with phrase «many different climate models»

In the new work, Surabi Menon of the NASA Goddard Institute for Space Studies and colleagues used aerosol data collected from 46 ground stations in China to assess four different climate modeling scenarios.

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.

«This heating is represented in very different ways in different climate models, and is one of the factors responsible for inconsistency of climate model results,» Jin said.

The team used the new scheme in five ice sheet models and forced them with climate warming conditions taken from two different climate models.

Reporting in the Nov. 14 issue of the journal Science, University of California, Berkeley, climate scientist David Romps and his colleagues look at predictions of precipitation and cloud buoyancy in 11 different climate models and conclude that their combined effect will generate more frequent electrical discharges to the ground.

They then looked at 11 different climate models that predict precipitation and CAPE through this century and are archived in the most recent Coupled Model Intercomparison Project (CMIP5).

«The team determined the effect of this mismatch in 36 different climate models.

O'Gorman studied daily snowfall across the Northern Hemisphere using 20 different climate models, each of which projected climate change over a 100 - year period, given certain levels of greenhouse gas emissions.

Method: The assessment started with 20 different climate models from research groups around the world.

The scientists point out they used a range of different climate models and not all gave the same result.

Moreover, similar answers were found in different climate models, suggesting that this is a very simple way of ascertaining some of the mechanisms that can explain climate system response to climate change.

Using thus 10 different climate models and over 10,000 simulations for the weather@home experiments alone, they find that breaking the previous record for maximum mean October temperatures in Australia is at least six times more likely due to global warming.

Clouds are hard for models to get right and we know that different climate models don't agree on how hot it's going to get, in large part because they don't agree on what clouds will do in the future.

Caldeira and Myhrvold analyzed more than 50 climate simulations, which were performed using 20 different climate models for the Climate Model Intercomparison Project, Phase 5 (CMIP5).

To assess the impact of sunshade geoengineering on crop yields, Pongratz's team, which included Carnegie's Ken Caldeira and Long Cao, as well as Stanford University's David Lobell, used two different climate models.

To answer this question, the scientists compared actual measurements for the Arctic in November and December with two different «versions» of 13 different climate models.

Yellow lines show individual results from different climate models, and the black line shows observed temperatures to the present day.

These results are based on data compiled from 15 different climate models, and use the average temperature from 1970 through 1999 as a baseline for comparison.

Recall that in their 2001 Third Assessment Report, the IPCC gives a range of temperature increase between 1990 and 2100 of 1.4 and 5.8 ºC based upon the simulated output from 7 different climate models run under 35 different emissions scenarios — each of which the IPCC claimed as having an equal probability of occurrence.

Do different climate models give different results?

We now have many different climate models, many different methods, and get a range of different results.

The IPCC did a comparison of different climate models.

We employed two different climate model simulations: (1) the simulation of the NCAR CSM 1.4 coupled atmosphere - ocean General Circulation Model (GCM) analyzed by Ammann et al (2007) and (2) simulations of a simple Energy Balance Model (EBM).

Regional and local climate aspects are computed, based on different climate models, statistical analyses, empirical data, and assumptions.

It is also robust to the use of different climate models, different methods for estimating the responses to external forcing and variations in the analysis technique.

If you want uncertainty due to the forcings, then take the span of Scenario A to C, if you want the uncertainty due to the climate model, you need to compare different climate models which is a little beyond this post — but look at IPCC AR4 to get an idea.

According to that chart of actual satellite and surface temperature observations vs. what was predicted by 90 different climate models, 95 percent of models overestimated... C3: Climate Model — Charts / Graphs C3 Headlines» climate - model - chartsgraphs

One vegetation model (MOSES - TRIFFID) forced by 22 different climate models.

«We also need to investigate the altitude and seasonal dependence of the changes, and to analyse different climate models and warming scenarios to quantify the uncertainties.»

Yellow lines show individual results from different climate models, and the black line shows observed temperatures to the present day.

For the first time, researchers have been able to combine different climate models using spatial statistics — to project future seasonal temperature changes in regions across North America.

In a paper published last year Meehl et al (2011) looked at what a range of different climate models predict might happen in the future.

If clouds are allowed to change (and changes in sea - ice are suppressed), different climate models give answers ranging from 1.5 to 4.5 C for the warming due to doubling CO2.

The three climate modelers also worked at quantitatively assessing the relevance and usefulness of the delivered information for different climate models.

«The fact that there is a distribution of future climate changes arises not only because of incomplete understanding of the climate system (e.g. the unknown value of the climate sensitivity, different climate model responses, etc.), but also because of the inherent unpredictability of climate (e.g. unknowable future climate forcings and regional differences in the climate system response to a given forcing because of chaos).

I suppose my question for Nick Stokes is that there are many different climate models with varying parameters.

The second study uses a different climate model to simulate Arctic summer ice cover under a range of scenarios.

Just looking at the AR4 and early AR5 simulations, it looks as if the different climate models give a wide range of answers.

Change in average annual runoff by the 2050s under the SRES A2 emissions scenario and different climate models (Arnell, 2003a).

Obviously, even for large river basins, climate change scenarios from different climate models may result in very different projections of future runoff change (e.g., in Australia, South America, and Southern Africa).

The Americans — who published their findings on Sunday in Nature Climate Change — ran two different climate models, CAM3.5 and HadCM3L — the one devised by the US National Center for Atmospheric Research and the other by the UK Met Office's Hadley Centre and simulated a doubling of atmospheric CO2 concentrations, temperature - compensating stratospheric solar radiation management (SRM) geoengineering — and compared precipitation changes.

One of the exasperating aspects of the IPCC, and there are many, is that it pretends that climatology is a hard science but it, the IPCC, can not differentiate among 15 different climate models as to which ones are best.

Viable avenues for improving the information base include determining the primary causes of variation among different climate models and determining which climate models exhibit the best ability to reproduce the observed rate of sea ice loss.

However, there remains uncertainty in the rate of sea ice loss, with the models that most accurately project historical sea ice trends currently suggesting nearly ice - free conditions sometime between 2021 and 2043 (median 2035).12 Uncertainty across all models stems from a combination of large differences in projections among different climate models, natural climate variability, and uncertainty about future rates of fossil fuel emissions.

What denialist caused the creation of over 20 very different climate models if the science is settled?

While this data set is large, the authors nevertheless warn that even more climate projections by different climate models are needed to increase confidence in their result.

These equations are written in different ways in the different climate models, and somehow the interactions between the equations produce models with a high climate sensitivity, or with a low climate sensitivity.

I believe there are thirty different climate models and modelling teams all huffing and puffing about their great insights.

I examined simulations from 34 different climate models, each run with projected increases in greenhouse gas concentrations.

They then looked at 11 different climate models that predict precipitation and CAPE through this century and are archived in the most recent Coupled Model Intercomparison Project (CMIP5).