Sentences with phrase «using regional climate models»
Our research group studies the meteorology and climate of both polar regions using regional climate models and numerical weather prediction models.
https://cires.colorado.edu/
After obtaining precise ice shelf height data, the researchers used a regional climate model to work out how much of the variability on a year - to - year basis was due to snowfall (which causes ice shelves to grow taller) versus ocean - driven melting (which causes ice shelves to thin from below).
Knutson et al project future changes in Atlantic TC behavior by using a regional climate model (RCM) which produces tropical cyclones (though ones that are too weak — see discussion below) to «downscale» climate change impacts.
What I am saying is that they used a regional climate model which did not include the changes in the Arctic region, and the boundary conditions they used were those predicted using GCMs that we know got the Arctic ice wrong!
Researchers used a regional climate model to study links between a streak of cooler water in the tropical Atlantic during spring to the timing and intensity of West African monsoon rains.
Simulating the variation of the ice sheet's albedo using a regional climate model — Modèle Atmosphérique Régionale (MAR), which some members of the team helped develop — indicated that increasing temperatures and melting accompanied by snow grain growth and greater bare ice exposure account for about half the decline, the scientists report.
(b) to (d): JJA temperatures for Switzerland observed during 1864 to 2003 (b), simulated using a regional climate model for the period 1961 to 1990 (c) and simulated for 2071 to 2100 under the A2 scenario using boundary data from the HadAM3H GCM (d).
A study using a regional climate model and the same indices of significant severe thunderstorms as have been used to diagnose their patterns in the current climate finds that, especially in the central and eastern United States (the preferred locations for severe weather anywhere in the world), we can expect a few more days per month with conditions favorable to severe thunderstorm occurrence in a doubled CO2 climate [12](Fig. 5).
To determine how much ice and snowfall enters a specific ice shelf and how much makes it to an iceberg, where it may split off, the research team used a regional climate model for snow accumulation and combined the results with ice velocity data from satellites, ice shelf thickness measurements from NASA's Operation IceBridge — a continuing aerial survey of Earth's poles — and a new map of Antarctica's bedrock.
This assessment used regional climate models (RCMs) to examine how climate extremes may change in the Columbia Basin.
Using a regional climate model combined with an urban model that allowed researchers to adjust roof reflectance, they found that the average urban midday temperature was lowered by 1.2 degrees Celsius (2.2 degrees Fahrenheit) during heat waves, or 50 percent more than the 0.8 degrees Celsius reduction for typical summer conditions.
In order to do this they downscale output from a global climate model using a regional climate model that can simulate vegetation dynamics.
Not exact matches
It's going to be one of the major topics at a regional Climate Solutions Summit in Syracuse this weekend, as the city hopes to take the lead on an energy supply model that uses renewable energy.
They used this data compilation to evaluate the quality of their regional atmospheric climate model, based on global climate projections that included several scenarios of anticipated climate change.
So it is not surprising that while the inure than a dozen major global climate models in use around the world tend to agree on the broadest phenomena, they differ wildly when it comes to regional effects.
The global climate models assessed by the Intergovernmental Panel on Climate Change (IPCC), which are used to project global and regional climate change, are coarse resolution models based on a roughly 100 - kilometer or 62 - mile grid, to simulate ocean and atmospheric dyclimate models assessed by the Intergovernmental Panel on Climate Change (IPCC), which are used to project global and regional climate change, are coarse resolution models based on a roughly 100 - kilometer or 62 - mile grid, to simulate ocean and atmospheric dyClimate Change (IPCC), which are used to project global and regional climate change, are coarse resolution models based on a roughly 100 - kilometer or 62 - mile grid, to simulate ocean and atmospheric dyclimate change, are coarse resolution models based on a roughly 100 - kilometer or 62 - mile grid, to simulate ocean and atmospheric dynamics.
Vahmani and Jones used a high - resolution regional climate model for their analysis; Vahmani then added a component to the model to account for irrigation water.
Colgan's team used two different combinations of regional and global climate models to estimate how conditions might change at the camp's location in the future.
The analysis uses methods that have already been peer - reviewed, including examining the change in occurrence of such extreme rains in the historical record and in climate models, as well as using finer - scale regional climate models to compare the current climate to one without warming.
Leung and Qian also participate in the North American Climate Change Assessment Program to use multiple global and regional climate models to better quantify uncertainties in projecting climate Climate Change Assessment Program to use multiple global and regional climate models to better quantify uncertainties in projecting climate climate models to better quantify uncertainties in projecting climate climate change.
After the field campaign, Fast will perform computer simulations to help evaluate all of the field campaign data and quantify the uncertainties associated with using coarse grid global climate models to study megacity emissions and to determine the radiative impact of the Mexico City particulates on the local and regional climate.
Using a super-ensemble of regional climate model simulations from the climateprediction.net experiment, we will determine how the carbon produced by these major industrial entities is contributing to the damages from climate change.
A team at the University of Oxford in the UK, led by Myles Allen and Friederike Otto, used thousands of iterations of regional climate models embedded within larger global models to examine more localized weather events.
The reduction of surface reflection due to biological activity, derived from our results, was used as a proxy for a reduction in albedo in the regional climate model Modèle Atmosphérique Régional (MAR; Fettweis et al., 2013) to project future microbially - mediated increases in GrIS melt (see Methodology, Supplementary Information).
What's Next: PNNL scientists are using a regional model at a much finer scale than conventional climate models to understand the processes that determine the time - scales of MJO and the roles of various types of clouds in its energy cycle.
The weather@home regional climate modelling system for Australia and New Zealand has been used for a number of different experiments in 2016.
Find out how researchers are using data from U.S. Department of Energy's Atmospheric Radiation Measurement (ARM) Climate Research Facility — the world's most comprehensive outdoor laboratory and data archive for research related to atmospheric processes that affect Earth's climate — to improving regional and global climate Climate Research Facility — the world's most comprehensive outdoor laboratory and data archive for research related to atmospheric processes that affect Earth's climate — to improving regional and global climate climate — to improving regional and global climate climate models.
«[B] y making use of 21 CMIP5 coupled climate models, we study the contribution of external forcing to the Pacific Ocean regional sea level variability over 1993 — 2013, and show that according to climate models, externally forced and thereby the anthropogenic sea level fingerprint on regional sea level trends in the tropical Pacific is still too small to be observable by satellite altimetry.»
Using models to distinguish between the forcing histories is thus likely to require a tighter focus on regional changes, or in climate patterns, more than the just the mean temperature.
If we had done a simple back - of - the - envelope estimate, surely someone would have criticized us for not using a climate model... Besides we also looked into regional patterns and the sea - ice response in our paper, something one can not do without a climate model.
Using (i) a state - of - the - art global climate model and (ii) a low - order energy balance model, we show that the global climate feedback is fundamentally linked to the geographic pattern of regional climate feedbacks and the geographic pattern of surface warming at any given time.
Again more sobering is «Development of regional future climate change scenarios in South America using the Eta CPTEC / HadCM3 climate change projections: climatology and regional analyses for the Amazon, São Francisco and the Paraná River basins» — a mouthful - titled publication in Climate Dynamics from 2012 that (indeed) uses the Hadley Centre climate model to conclude that droughts in the Amazon basin could increase rather dramatclimate change scenarios in South America using the Eta CPTEC / HadCM3 climate change projections: climatology and regional analyses for the Amazon, São Francisco and the Paraná River basins» — a mouthful - titled publication in Climate Dynamics from 2012 that (indeed) uses the Hadley Centre climate model to conclude that droughts in the Amazon basin could increase rather dramatclimate change projections: climatology and regional analyses for the Amazon, São Francisco and the Paraná River basins» — a mouthful - titled publication in Climate Dynamics from 2012 that (indeed) uses the Hadley Centre climate model to conclude that droughts in the Amazon basin could increase rather dramatClimate Dynamics from 2012 that (indeed) uses the Hadley Centre climate model to conclude that droughts in the Amazon basin could increase rather dramatclimate model to conclude that droughts in the Amazon basin could increase rather dramatically.
Khan says, «Since we need local and regional information, we downscale the global data to local area information through the grid method, using climate modelling.»
Sarah is also working on determining the natural and human components of observed regional climate change in Australia, using both observed and climate model data.
In another study, a multi-year time series of surface radiative fluxes and other atmospheric properties measured by a DOE climate program are being used at AER to evaluate radiative fluxes and to validate forecasts of surface temperature and other properties in the Weather Research and Forecasting (WRF) regional model.
Unfortunately, the figure also confirms that the spatial resolution of theoutput from the GCMs used in the Mediterranean study is too coarse for constructing detailed regional scenarios.To develop more detailed regional scenarios, modelers can combine the GCM results with output from statistical models.3 This is done by constructing a statistical model to explain the observed temperature or precipitation at a meteorological station in terms of a range of regionally - averaged climate variables.
Dynamical downscaling uses high - resolution climate models to represent global or regional sub-domains, and uses either observed or lower - resolution AOGCM data as their boundary conditions.
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.
The Chair of Land - Climate interactions investigates the role of land surface processes in the climate system using global (COSMOS) and regional (COSMO - CLM) climate models, land surface models (CLM, TerraLM), diagnostic estimates, ground and satellite observations, and field measurClimate interactions investigates the role of land surface processes in the climate system using global (COSMOS) and regional (COSMO - CLM) climate models, land surface models (CLM, TerraLM), diagnostic estimates, ground and satellite observations, and field measurclimate system using global (COSMOS) and regional (COSMO - CLM) climate models, land surface models (CLM, TerraLM), diagnostic estimates, ground and satellite observations, and field measurclimate models, land surface models (CLM, TerraLM), diagnostic estimates, ground and satellite observations, and field measurements.
«We studied regional climate effects of land use changes in the Western United States using Regional Spectral Model.
They arrived at the conclusion by using innovative computer modeling methods to simulate regional patterns of climate anomalies.
The simulated future emissions and land use were downscaled from the regional simulation to a grid to facilitate transfer to climate models.
For the purpose, the PRECIS (Providing REgional Climates for Impacts Studies) a regional climate modelling system, of UK Met Office, is used.
We quantify sea - level commitment in the baseline case by building on Levermann et al. (10), who used physical simulations to model the SLR within a 2,000 - y envelope as the sum of the contributions of (i) ocean thermal expansion, based on six coupled climate models; (ii) mountain glacier and ice cap melting, based on surface mass balance and simplified ice dynamic models; (iii) Greenland ice sheet decay, based on a coupled regional climate model and ice sheet dynamic model; and (iv) Antarctic ice sheet decay, based on a continental - scale model parameterizing grounding line ice flux in relation to temperature.
A fully coupled regional climate, 3D lake modeling system is used to investigate the physical mechanisms associated with the multiscale variability of the Lake Victoria basin climate.
This result suggests that current projections of regional climate change may be questionable.This finding is also highly relevant to regional climate modelling studies where lower resolution global atmospheric models are often used as the driving model for high resolution regional models.
Other activities include the downscaling of the European Centre for Medium - Range Weather Forecasts (ECMWF) long - range forecasts using regional coupled models, the participation in the preparation of the WMO Climate Watch System (providing a Climate Watch Advisory for South East Europe), and the preparation of the South East European Climate Outlook Forum (SEECOF) and Mediterranean Climate Outlook Forum (MEDCOF) activities.
Climate models are also used on regional scales in attempts to figure out way climate models don't perform well on regional Climate models are also used on regional scales in attempts to figure out way climate models don't perform well on regional climate models don't perform well on regional scales.
While regional climate downscaling yields higher spatial resolution, the downscaling is strongly dependent on the lateral boundary conditions and the methods used to constrain the regional climate model variables to the coarser spatial scale information from the parent global models.
The question that is addressed in my post is, with respect to multi-decadal model simulations, are global and / or regional climate models ready to be used for skillful regional projections by the impacts and policymaker communities?