Sentences with phrase «higher resolution modelling studies»

Balanced against this, higher resolution modelling studies typically project substantial increases in the frequency of the most intense cyclones, and increases of the order of 20 % in the precipitation rate within 100 km of the storm centre.

Not exact matches

He and Krause also think that Willerslev's study needs to be confirmed with higher resolution sequencing to rule out contamination, and to have more population genetics modeling explain the distribution of these genetic types.
The study, published today in the journal Environmental Research Letters, is based on a new high - resolution model that maps flood risk across the entire continental United States, whereas the existing regulatory flood maps produced by the Federal Emergency Management Agency (FEMA) cover about 60 percent of the continental U.S.
The highest resolution GFDL model, CM2.6, matched the Northwest Atlantic circulation and water mass distribution most accurately,» said Vincent Saba, a NOAA fisheries scientist and lead author of the study.
While studying for his doctorate with the study's senior author, UC Berkeley Prof. Barbara Romanowicz, Lekic developed a method to more accurately model waveform data while still keeping computer time manageable, which resulted in higher - resolution images of the interaction between the layers of Earth's mantle.
Currently I am involved in a very interesting project: The study of the network oscillations in the brain using an in - vitro animal model and a new high resolution microelectronic device.
The study compared pre-industrial and present - day results in current global models to the newer high - resolution model with the PNNL - MMF extension.
This study showed that higher resolution climate models tend to more realistically depict how droplets form a cloud and how precipitation develops.
The results are presented at a resolution high enough to enable studying ocean eddies and other narrow current systems, which are overlooked by lower - resolution models.
These results confirm the need to use global high resolution models to study the aerosol indirect effects.
And a few months ago, a study with a high - resolution ocean model appeared, suggesting that the meltwater from Greenland is likely to weaken the AMOC considerably within a few decades (Böning et al. 2016 — as we reported).
It would be useful to carry out more detailed studies with higher resolution climate models including the most realistic possible distribution of meltwater.
The reconfiguration strategy included high - resolution enhancements at its Southern Great Plains (SGP) site and upgrades at its North Slope of Alaska (NSA) site that will yield additional observations to support modeling and process studies.
More work at a higher resolution, combined with modelling studies, is required to fine - tune and better understand the longer - term history of Pine Island Glacier.
The atmospheric components of climate models were never really designed for the study of TCs, but the fact that they can produce features with TC - like character when run at sufficiently high resolutions, gives us increased confidence in the possibility that climate models can be used to analyze climate change impacts on TCs.
But the GFDL study is based on a state - of - the - art high - resolution model that is more appropriate for hurricane studies and provides important evidence suggesting that climate change may have an effect on the TCs.
GCMs tend to be too coarse to resolve cyclones, but high - resolution regional models for storm studies exist.
That same day I met Synte Peacock, a former Ph.D. student of mine, in the cafeteria and we decided to use the NCAR - LANL high resolution model to perform some dye release studies.
Meanwhile, high - resolution hurricane models can forecast the growth and path of tropical storms, but would require much greater computer power or eons of time to simulate the large samples of storms required for climate - change studies.
Our study shows that in 35 - years long high - resolution simulations the new model version can reproduce the state of the Fenno - Scandinavian lakes realistically, thus leading to a better representation of the overall climate.
One recent study used higher resolution atmospheric models and found that several regions over the US experienced an increase in wind energy of around 2 %.
One of the difficulties of studying the water cycle, Wei said, is that the water sources for precipitation can not be directly observed, so the team also used a mathematical moisture - tracking method and high - resolution model simulations.
Given the different responses of high - and low - resolution models to CO2 forcing, the authors emphasize the importance of model choice for any study of extreme precipitation.
A new international study is the first to use a high - resolution, large - scale computer model to estimate how much ice the West Antarctic Ice Sheet could lose over the next couple of centuries, and how much that could add to sea - level rise.
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.
The US CLIVAR / OCB Southern Ocean Working Group was formed to identify critical observational targets and develop data / model metrics based on the currently available observational data, both physical and tracer, and the assimilative modeling (re) analyses, and evaluate and develop our understanding of the importance of mesoscale eddies in the heat and carbon uptake and of the response of the Southern Ocean to a changing climate, using high - resolution numerical studies and theory.
This study is a clear shot across the bow against some previous research showing higher potential rates of oceanic sequestration, all of which used coarser resolution models that may not have accurately simulated critical variables, including particle circulation.
In the first study, the research team from PNNL and Los Alamos National Laboratory used idealized global model simulations of the aquaplanet with Model for Prediction Across Scales - Atmosphere (MPAS - A) and Weather Research and Forecasting Model (WRF) to run at low, high and variable resolutmodel simulations of the aquaplanet with Model for Prediction Across Scales - Atmosphere (MPAS - A) and Weather Research and Forecasting Model (WRF) to run at low, high and variable resolutModel for Prediction Across Scales - Atmosphere (MPAS - A) and Weather Research and Forecasting Model (WRF) to run at low, high and variable resolutModel (WRF) to run at low, high and variable resolutions.
paper refers to a new model which makes it possible to study the globally impacts of aerosols on warm clouds (T > 0 ° C) thanks to a much higher resolution than former approaches.
Both studies are part of a model improvement plan to compare different high - resolution climate modeling approaches and find the impacts of model resolution on results.
In her study, RCMs operating at the typical 25 — 50 km scale resolution tend to overestimate the positive soil moisture — precipitation feedback in the Alpine area, which is better represented by higher resolution models.
But because the stakes are so high, the researchers also urge for more studies to track the movement of freshwater throughout the region with greater resolution and detail so that models — both conceptual and computational — can be more tightly constructed to match the realities of our changing planet.
Using an ensemble of four high resolution (~ 25 km) regional climate models, this study analyses the future (2021 - 2050) spatial distribution of seasonal temperature and precipitation extremes in the Ganges river basin based on the SRES A1B emissions scenario.
The relationship is exponential, resulting in an increase of SMB as a function of Antarctic SAT change evaluated in various recent studies with high - resolution (~ 60 km) models as 3.7 % °C — 1 (Bengtsson et al., 2011), 4.8 % °C — 1 (Ligtenberg et al., 2013) and ~ 7 % °C — 1 (Krinner et al., 2007).
Studying Chinese summer thunderclouds the researchers found that an increase in aerosols led to larger and more persistent convective cloud systems, with larger anvils at several kilometers of altitude that may reflect more sunlight, but trap even more heat — as their high - resolution model showed.
A recent study using a higher - resolution model, however, finds no evidence of future intensification except for precipitation [20].
The review study found that high - resolution mixed layer ocean models can represent some of the complicated air - sea interactions and recommended that scientists use coupled simulations and evaluate them in terms of the observed relationship between convection and sea surface temperature and associated variables.
In order to study if an underrepresentation of weak magnetic fields in the Carrington rotation synoptic charts is the explanation for the difference between our model and the observation, full - disk images with higher spatial and temporal resolution should be analyzed in future.
Higher resolution observations have recently become available, and model A could possibly be improved in future studies.
North American Regional Climate Change Assessment Program The North American Regional Climate Change Assessment Program (NARCCAP) is an international effort that produces high - resolution regional climate model simulations of North America's climate, for regional analysis and impacts studies.
For processes such as boundary layer turbulence that are computable in limited areas if sufficiently high resolution is available, parameterization schemes are increasingly also tested with data generated computationally in local process studies with high - resolution models (e.g., large - eddy simulations), likewise at only a few locations.
Recent studies show that global high - resolution models have remarkable skill in simulating the interannual variability in cyclone counts, implicating strong control by sea surface temperatures patterns.
We review evidence for climate change over the past several millennia from instrumental and high - resolution climate «proxy» data sources and climate modeling studies.
We know this from «downscaling» studies made by using high - resolution regional climate models to add local detail to larger - scale changes derived from coarser - resolution global models.
The average intensity of the storms that do occur increases by a few percent (Figure 6), in general agreement with previous studies using other relatively high resolution models, as well as with hurricane potential intensity theory (Emanuel 1987).
A new study from Lawrence Berkeley National Laboratory (Berkeley Lab) breaks new ground by using a high - resolution model of the continental United States that incorporates land - surface feedback to probe the effects of deploying light - colored roads and rooftops.
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