Sentences with phrase «earth system models of»

Biogeophysical effects of historical land cover changes simulated by six Earth system models of intermediate complexity.

In this plot from IPCC (2013 Fig. 9.8), the thin colored lines represent individual models from the Climate Model Intercomparison Project 5 (CMIP5) and the simpler Earth System Models of Intermediate Complexity (EMIC) and the thick red lines their means, while the thick black lines represent three observed temperature sequences.

Carefully designed non-linear modeling experiments using Earth system Models of Intermediate Complexity (EMICs; and also the FAMOUS AOGCM; Hawkins et al., 2011) have revealed a model - dependent threshold beyond which an active AMOC can not be sustained (Rahmstorf et al., 2005; see Figure 2.2).

EMICs (Earth System Models of Intermediate Complexity) are a step down in complexity.

Experience with solution algorithms, data assimilation methods and tools, coupling of components and processes, nonlinear and linear solvers, limiters, and / or other numerical issues common with complex codes within earth system models of varying complexity

To explore the potential importance of carbon cycle feedbacks in the climate system, explicit treatment of the carbon cycle has been introduced in a few climate AOGCMs and some Earth System Models of Intermediate Complexity (EMICs).

Another approach uses the response of climate models, most often simple climate models or Earth System Models of Intermediate Complexity (EMICs, Table 8.3) to explore the range of forcings and climate parameters that yield results consistent with observations (Andronova and Schlesinger, 2001; Forest et al., 2002; Harvey and Kaufmann, 2002; Knutti et al., 2002, 2003; Forest et al., 2006).

Earth System Models of Intermediate Complexity have been evaluated in greater depth than previously.

Earth system Models of Intermediate Complexity have been developed to investigate issues in past and future climate change that can not be addressed by comprehensive AOGCMs because of their large computational cost.

To explore the potential importance of carbon cycle feedbacks in the climate system, explicit treatment of the carbon cycle has been introduced in a few climate AOGCMs and some Earth System Models of Intermediate Complexity (EMICs).

Claussen, M., et al., 2002: Earth system models of intermediate complexity: closing the gap in the spectrum of climate system models.

Claussen, M., 2005: Table of EMICs (Earth System Models of Intermediate Complexity).

Brovkin, V., et al., 2006: Biogeophysical effects of historical land cover changes simulated by six Earth system models of intermediate complexity.

Crucifix, M., et al., 2002: Climate evolution during the Holocene: A study with an Earth system model of intermediate complexity.

The potential of coastal ocean alkalinization (COA), a carbon dioxide removal (CDR) climate engineering strategy that chemically increases ocean carbon uptake and storage, is investigated with an Earth system model of intermediate complexity.

The last panel shows the longer term redistribution including ocean dissolution of carbonaceous sediments as computed with an Earth System Model of Intermediate Complexity.

We use the DCESS model, a relatively simple but well - tested and flexible Earth system model of intermediate complexity (41, 52, 53).

«The assessment is supported additionally by a complementary analysis in which the parameters of an Earth System Model of Intermediate Complexity (EMIC) were constrained using observations of near - surface temperature and ocean heat content, as well as prior information on the magnitudes of forcings, and which concluded that GHGs have caused 0.6 °C to 1.1 °C (5 to 95 % uncertainty) warming since the mid-20th century (Huber and Knutti, 2011); an analysis by Wigley and Santer (2013), who used an energy balance model and RF and climate sensitivity estimates from AR4, and they concluded that there was about a 93 % chance that GHGs caused a warming greater than observed over the 1950 — 2005 period; and earlier detection and attribution studies assessed in the AR4 (Hegerl et al., 2007b).»

I'd appreciate the RC's resident sea level rise consultant (s) thoughts on «Millennial total sea - level commitments projected with the Earth system model of intermediate complexity `

Basic performance of a new Earth system model of the Meteorological Research Institute (MRI - ESM1).

Not exact matches

The team's model suggests that stems from a slower deceleration rate for Earth's spin at the time, which affected the total amount of rotational momentum in the Earth - moon system and thus how rapidly the moon's spin rate decelerates, among other things.

Murali Haran, a professor in the department of statistics at Penn State University; Won Chang, an assistant professor in the department of mathematical sciences at the University of Cincinnati; Klaus Keller, a professor in the department of geosciences and director of sustainable climate risk management at Penn State University; Rob Nicholas, a research associate at Earth and Environmental Systems Institute at Penn State University; and David Pollard, a senior scientist at Earth and Environmental Systems Institute at Penn State University detail how parameters and initial values drive an ice sheet model, whose output describes the behavior of the ice sheet through time.

Researchers from Bern have developed a method to simplify the search for Earth - like planets: By using new theoretical models they rule out the possibility of Earth - like conditions, and therefore life, on certain planets outside our solar system — and limit their search by doing so.

Using an earth system modeling approach, Deutsch and scientists at the National Center for Atmospheric Research and the Georgia Institute of Technology mapped out changing oxygen levels across the world's oceans through the end of the 21st century.

Three approaches were used to evaluate the outstanding «carbon budget» (the total amount of CO2 emissions compatible with a given global average warming) for 1.5 °C: re-assessing the evidence provided by complex Earth System Models, new experiments with an intermediate - complexity model, and evaluating the implications of current ranges of uncertainty in climate system properties using a simple System Models, new experiments with an intermediate - complexity model, and evaluating the implications of current ranges of uncertainty in climate system properties using a simple system properties using a simple model.

The study used simulations from the Community Earth System Model (CESM) run at the National Center for Atmospheric Research (NCAR) and examined warming scenarios ranging from 1.5 degrees Celsius all the way to 4 degrees Celsius (7.2 degrees Fahrenheit) by the end of the century.

The researchers now want to continue developing a more advanced regional earth system model to improve the regional environmental impact assessment, and apply this not only to the Amazon region but also to other parts of the world.

According to Minchao Wu, regional earth system models are an important tool for assessing the impact of regional environmental changes.

«For the first time, space weather forecasters now have models and tools for predicting how a CME is released from the sun, accelerated out into the solar wind, and ultimately ends up colliding with Earth's magnetosphere creating the geomagnetic storms that impact so many technologies and systems,» says Rodney Viereck of the National Oceanic and Atmospheric Administration's (NOAA) Space Environment Center.

The recent slowdown in global warming has brought into question the reliability of climate model projections of future temperature change and has led to a vigorous debate over whether this slowdown is the result of naturally occurring, internal variability or forcing external to Earth's climate system.

Existing Earth System Model simulations indicate that the ability of tropical land ecosystems to store carbon will decline over the 21st century.

NASA researchers found that countries in the Northern Hemisphere had an average temperature increase of 0.93 C, and latitudes around 60 degrees north or above had an average temperature increase of 1.8 C, according to Gavin Schmidt, director of GISS and principal investigator for the GISS Model E Earth System Model.

Canadell added that while the models represent the best possible simulation of Earth system components, they are continually being improved.

The standard model for the formation of the Earth - moon system is that a huge, Mars - size object hit Earth and spun off material that coalesced in orbit to become the moon.

The study, «The effect of horizontal resolution on simulation quality in the Community Atmospheric Model, CAM5.1,» has been published online in the Journal of Advances in Modeling Earth Systems.

Morgan O'Neill, the paper's lead author and a former PhD student in MIT's Department of Earth, Atmospheric and Planetary Sciences (EAPS), says the team's model may eventually be used to gauge atmospheric conditions on planets outside the solar system.

The slow impact velocity of previous models requires it to have originated from an orbit very near Earth, while the new model allows for an origin from more far - flung parts of the solar system, researchers report in an upcoming issue of Icarus.

Likewise, while models can not represent the climate system perfectly (thus the uncertainly in how much the Earth will warm for a given amount of emissions), climate simulations are checked and re-checked against real - world observations and are an established tool in understanding the atmosphere.

To test his idea, Salzmann used a computer model of the Earth system to find out how the climate would react to a doubling of the atmospheric carbon - dioxide concentration.

Global Earth System Models (ESMs) all predict that global photosynthesis will increase with carbon dioxide, but they differ by a factor of three in the size of this «CO2 fertilization».

The new findings of successful multi-year drought / fire predictions are based on a series of computer modeling experiments, using the state - of - the - art earth system model, the most detailed data on current ocean temperature and salinity conditions, and the climate responses to natural and human - linked radiative forcing.

Their models showed that if you visited any star with a planet orbiting from the same distance as Earth down to one tenth that, there is about a 38 percent chance (and likely less) that you would run into a planet and moon system similar to Jupiter's four Galilean satellites (Io, Europa, Ganymede and Callisto), with similar ratios of moon to planetary diameters and orbital to planetary radii.

Under the Decadal and Regional Climate Prediction Using Earth System Models (EaSM) program, the National Science Foundation and the U.S. Departments of Agriculture and Energy will kick in a total of $ 50 million a year for 5 years.

Professor Park Je - Geun, Associate Director of the Center for Correlated Electron Systems (CCES), within the Institute for Basic Science (IBS), and colleagues have observed, quantified and created a new theoretical model of the coupling of two forms of collective atomic excitation, known as magnons and phonons in crystals of the antiferromagnet manganite (Y, Lu) MnO3, a mineral made of manganese oxide and rare - earth elements called yttrium (Y) and lutetium (Lu).

«One class of crop models is agronomy - based and the other is embedded in climate models or earth system models.

Most important, it relies on the first published results from the latest generation of so - called Earth System climate models, complex programs that run on supercomputers and seek to simulate the planet's oceans, land, ice, and atmosphere.

In this research, the authors present extensive evidence of the need for a new paradigm of modeling that incorporates the feedbacks that the Earth System has on humans, and propose a framework for future modeling that would serve as a more realistic guide for policymaking and sustainable development.

Titled «Modeling Sustainability: Population, Inequality, Consumption, and Bidirectional Coupling of the Earth and Human Systems,» the paper describes how the rapid growth in resource use, land - use change, emissions, and pollution has made humanity the dominant driver of change in most of the Earth's natural systems, and how these changes, in turn, have critical feedback effects on humans with costly and serious consequences, including on human health and well - being, economic growth and development, and even human migration and societal coSystems,» the paper describes how the rapid growth in resource use, land - use change, emissions, and pollution has made humanity the dominant driver of change in most of the Earth's natural systems, and how these changes, in turn, have critical feedback effects on humans with costly and serious consequences, including on human health and well - being, economic growth and development, and even human migration and societal cosystems, and how these changes, in turn, have critical feedback effects on humans with costly and serious consequences, including on human health and well - being, economic growth and development, and even human migration and societal conflict.

The biggest concern: that the Accelerated Climate Modeling for Energy (ACME) project, meant to forecast local impacts of climate change and to be used on DOE's future exascale supercomputers, would dilute resources from the Community Earth System Model (CESM).

Computer models have shown that the early solar system was a tumultuous billiards table, with dozens or even hundreds of planetary building blocks the size of Earth bouncing around.