Sentences with phrase «global model output»

The presence of higher spatial resolution information in the regional models, beyond what can be accomplished by interpolation of the global model output to a finer grid mesh, is only an illusion of added skill.

I speculate that this is due to (among other things) the use of the RCM as the poor man's global model, and - as described above - a disconnect between stakeholders and global model output.

Are efforts best used in making global model output more applicable to the local scale, or in increasing the local skill and resolution of global models?

Statistical downscaling of the global model outputs like GPCs are done using tools like CPT.

Not exact matches

The researchers looked at a total of 34 different global climate model outputs, encompassing different degrees of atmospheric sensitivity to greenhouse gases and different levels of human emissions of greenhouse gases into the atmosphere.

Their findings, based on output from four global climate models of varying ocean and atmospheric resolution, indicate that ocean temperature in the U.S. Northeast Shelf is projected to warm twice as fast as previously projected and almost three times faster than the global average.

For much of the global ocean the coarser resolution is okay, but when you are studying a unique location like the Gulf of Maine, with its complex bathymetry of deep basins, channels, and shallow banks combined with its location near the intersection of two major ocean current systems, the output from the coarser models can be misleading.»

In other words, whereas the new satellite measurements call into question computer models of solar output, it does not change the fundamental physics of human - induced global warming.

Results: Researchers at Pacific Northwest National Laboratory — in collaboration with NERSC, Argonne National Laboratory, and Cray — recently achieved an effective aggregate IO bandwidth of 5 Gigabytes / sec for writing output from a global atmospheric model to shared files on DOE's «Franklin,» a 39,000 - processor Cray XT4 supercomputer located at NERSC.

Methods: The PNNL research team analyzed model outputs from 24 global climate models used in the Intergovernmental Panel on Climate Change (IPCC) Fifth Assessment Report (AR5).

Studies of the Arctic system, connections between atmosphere and sea ice, and between the Arctic and the global system using remote sensing, conventional measurements, and output from global climate models.

Xie, P., and P.A. Arkin, 1997: Global precipitation: A 17 - year monthly analysis based on gauge observations, satellite estimates, and numerical model outputs.

To determine the temperature of different portions of the atmosphere, Santer and his colleagues sampled the output of global climate models at specific areas of the atmosphere where temperature is currently measured by satellites.

These is output from the large scale global models used to assess climate change in the past, and make projections for the future.

The idealised model from Myhrvold & Caldeira is looking a 1TW of deliverable electric which is «the order of magnitude of the global electrical output currently generated from coal.»

Of course you should have posted the models hindcasts for the whole of the 20th century and then you would see the excellent short to medium term correlation between model output ant global temperature record.

In other words, the fundamental reason scientists think atmospheric CO2 strongly affects the global temperature is not climate model output — it's just * basic radiative physics *!

I presume global climate model outputs could just as easily be extracted to compare to such an extensive but incomplete set of data as is done now to compare to existing GATs.

Both observational data and statistically downscaled global climate model output were used and the regions chosen were the Salmon and Willow headwater sub-basins in the Fraser River, in British Columbia.

This was done by calculating the climate change occurring in each model as a result of a 1 C increase in global mean temperature.The output from GCMs can be used directly to construct regional scenarios.

A recent meta - analysis published in the journal Nature Climate Change, by Challinor et al. (2014) examines 1,722 crop model simulations, run using global climate model output under several emissions scenarios, to evaluate the potential effects of climate change and adaptation on crop yield.

The DICE model attempts to quantify how the atmospheric concentration of CO2 negatively affects economic output through its impact on global average surface temperature.

You may have missed his recent posting about this topic: http://wattsupwiththat.com/2013/05/21/model-climate-sensitivity-calculated-directly-from-model-results/#more-86761 It is actually amazing that the global temperature result of climate models can be replicated with forcing inputs manipulated by his trivial formula, resulting in an almost identical output (r value of about 0.99).

A new study comparing the composite output of 22 leading global climate models with actual climate data finds that the models do an unsatisfactory job of mimicking climate change in key portions of the atmosphere.

However, when comparing model outputs against Hurst climate persistence, I find that the catastrophic majority anthropogenic global warming hypothesis to be formally «Not Proven» per Bray (2005), and Johnson (2013).

It contains a suite of routines for downscaling coarse scale global climate model (GCM) output to a fine spatial resolution.

The models currently assume a generally static global energy budget with relatively little internal system variability so that measurable changes in the various input and output components can only occur from external forcing agents such as changes in the CO2 content of the air caused by human emissions or perhaps temporary after effects from volcanic eruptions, meteorite strikes or significant changes in solar power output.

The arguments put forward are that climate models, which produce output at a wide range of spatial and temporal scales, but it is claimed that the only become skillful at global scale with 30 - year temporal resolution.

Output from global circulation models indicates that climate variability will continue to be an important characteristic of the region in the future [52], but that climate change may increase the risk of extreme climatic events such as multi-decade droughts and extreme winter precipitation [53], [54].

Just because the use of models is the best we have to try a determine what will happen to global temperatures as CO2 quantities go on increasing, is no reason to believe that the output of climate models is anything other that scientific wild a ** e guesses.

Examining the global environmental impact of regional consumption activites — Part 2: Review of input - output models for the assessment of environmental impacts embodied in trade.

Shown are data from the Global Historical Climatology Network (GHCN) dataset and output from the two GISS model experiments (SST only in middle panel and SST+D ust in bottom panel).

«We use a combination of (1) 9 years of global satellite data, (2) a simple forcing - feedback model of climate variability, and (3) output from the IPCC climate models, to demonstrate various aspects of this issue.

We are helping you to understand that there are other plausible explanations for global warming, and the assumption that it is due to CO2 is based only on opinionated papers hand - waved through the peer review process by friendly referees [while skeptical papers rarely see the light of day], and by computer model outputs, which are invariably unable to predict the future climate, or even today's climate with all available past data as the input.

Have you ever wanted a simple way to output global average values for each year from a series of monthly climate model output files?

The same analysis will be applied to output from the high - resolution Regional Arctic System Model (RASM) and to output from a suite of global climate models (GCMs).

Symbols are GVM outputs and lines are fitted responses, using a simple model fitted to the global NPP responses to CO2 and temperature and residence time responses to temperature for each model as described in the main text.

Future global vegetation carbon change calculated by seven global vegetation models using climate outputs and associated increasing CO2 from five GCMs run with four RCPs, expressed as the change from the 1971 — 1999 mean relative to change in global mean land temperature.

Nic Is it not true that the harsh reality is that the output of the climate models which the IPCC rely's on on their dangerous global warming forecasts have no necessary connection to reality because of their structural inadequacies.

Clarke et al.'s work is published in Nature Geoscience and uses a regional glaciation model driven by global climate model output to examine possible future changes to glaciers in western Canada.

The sources of uncertainty are many, including the trajectory of greenhouse gas emissions in the future, their conversion into atmospheric concentrations, the range of responses of various climate models to a given radiative forcing and the method of constructing high resolution information from global climate model outputs (Pittock, 1995; see Figure 13.2).

Their work involved using a hydrologic model that included a simple representation of glaciers, run by statistically - downscaled output from global climate models, in order to come up with projected changes to evaporation, precipitation, runoff, snow, soil moisture and temperature in the Canadian portion of the Columbia River Basin.

The question is not to prove that GCMs are bad a global forecasting but to show that these models, and especially aggregated outputs from these models, are of any use.

So I do not think that ensemble outputs of climate models would perform better at any local scale than at the global scale.

-- «Global climate models are unable to produce an output that is verifiable» — April 2009

If such model outputs exist for any of the global climate parameters, I would really like to learn what they projected and how that matched real measurements.

They said we would see immediate and ongoing sharp rises in temperatures and produced projections to show that, based on the output of the Global Climate Models.

The model output is simply nonsense, the false precision is a joke, the error bands swamp the signal, and the so called causal relationship between CO2 and global average temperature is wishful thinking.

Using output from Global Climate Models participating in the Fifth Phase of the Coupled Model Intercomparison Project, PCIC has applied a statistical downscaling method called BCSD to create a set of downscaled climate projections of precipitation, minimum temperature and maximum temperature.

In the second part, the RCMs were driven using the output of global climate models in order to make projections of climate extremes for the 2050s in the Columbia Basin.