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SIMULATING INFRASTRUCTURE OUTAGES: AN OPEN-SOURCE GEOSPATIAL APPROACH
Critical Infrastructure Utilities Spatial Decision Support Systems Cascading Effects Outage Undirected Graph Graph Theory GIS
2018/4/18
Understanding the impact of service outages caused by natural or man-made disasters in utility services is a key part of decision-making in response and recovery efforts. Large-scale outages in the la...
SIMULATING INFRASTRUCTURE OUTAGES: AN OPEN-SOURCE GEOSPATIAL APPROACH
Critical Infrastructure Utilities Spatial Decision Support Systems Cascading Effects Outage Undirected Graph Graph Theory GIS
2018/5/8
Understanding the impact of service outages caused by natural or man-made disasters in utility services is a key part of decision-making in response and recovery efforts. Large-scale outages in the la...
Numerically simulating impact disruptions of cohesive glass bead agglomerates using the soft-sphere discrete element method
Asteroids, Surfaces Collisional physics Geological processes Regoliths
2015/12/25
We present our implementation of cohesion in the parallel N-body code pkdgrav in order to model small bodies that are not fully monolithic but that have at least some degree of cohesion. Small bodies ...
Months of warning signs from Mauna Loa, on Hawaii’s Big Island, prompted the U.S. Geological Survey to recently start releasing weekly updates on activity at the world’s largest active volca...
An observation-constrained multi-physics WRF ensemble for simulating European mega heat waves
multi-physics WRF ensemble simulating European mega heat waves
2015/8/6
Many climate models have difficulties in properly reproducing climate extremes, such as heat wave conditions. Here we use the Weather Research and Forecasting (WRF) regional climate model with a large...
A size-composition resolved aerosol model for simulating the dynamics of externally mixed particles: SCRAM (v 1.0)
dynamics size-composition
2015/8/6
The Size-Composition Resolved Aerosol Model
(SCRAM) for simulating the dynamics of externally mixed
atmospheric particles is presented. This new model classfies aerosols by both composition an...
Simulating the Long-Range Swell of Internal Waves Generated by Ocean Storms
Ocean Storms Internal Waves
2015/7/14
Near-inertial waves (NIWs) are a special class of internal gravity waves with periods set by planetary rotation and latitude (e.g., at 30° latitude, one cycle per 24 hours). They are notable because t...
Simulating condensational growth, evaporation, and coagulation of aerosols using a combined moving and stationary size grid
Simulating condensational growth evaporation coagulation aerosols
2015/7/6
Simulating condensational growth, evaporation, and coagulation of aerosols using a combined moving and stationary size grid.
Simulating superconducting materials with ultracold atoms
Simulating superconducting materials ultracold atoms
2015/3/4
Using ultracold atoms as a stand-in for electrons, a Rice University-based team of physicists has simulated superconducting materials and made headway on a problem that’s vexed physicists for nearly t...
Simulating nonequilibrium movement of water, solutes and particles using hydrus – a review of recent applications
nonequilibrium flow and transport physical nonequilibrium chemical nonequilibrium numerical models preferential flow reactive transport HYDRUS review of recent applications
2015/2/3
Water and contaminants moving through the vadose zone are often subject to a large number of simultaneous physical and chemical nonequilibrium processes. Traditional modeling tools for describing flow...
Scale-Separation Scheme for Simulating Superfluid Turbulence: Kelvin-Wave Cascade
Kelvin from the distorted wave of vortex superfluid turbulence low temperature the numerical simulation of vortex line
2014/12/20
A Kolmogorov-type cascade of Kelvin waves—the distortion waves on vortex lines—plays a key part in the relaxation of superfluid turbulence at low temperatures. We propose an efficient numeric scheme f...
Modelling the role of fires in the terrestrial carbon balance by incorporating SPITFIRE into the global vegetation model ORCHIDEE – Part 1: simulating historical global burned area and fire regimes
simulating historical global burned area fire regimes
2014/12/19
Fire is an important global ecological process that influences the distribution of biomes, with consequences for carbon, water, and energy budgets. Therefore it is impossible to appropriately model th...
Simulating high-latitude permafrost regions by the JSBACH terrestrial ecosystem model
High latitudes phenomenon freeze thaw coupling thermal stratified soil hydrological processes insulation moss cover basin northern system capture the dynamic
2014/12/18
The current version of JSBACH incorporates phenomena specific to high latitudes: freeze/thaw processes, coupling thermal and hydrological processes in a layered soil scheme, defining a multilayer snow...
Simulating the mid-Pliocene Warm Period with the CCSM4 model
mid-Pliocene Warm Period CCSM4 model
2014/12/16
This paper describes the experimental design and model results from a 500 yr fully coupled Community Climate System, version 4, simulation of the mid-Pliocene Warm Period (mPWP) (ca. 3.3–3.0 Ma). We s...
Simulating Southern Hemisphere extra-tropical climate variability with an idealised coupled atmosphere-ocean model
Model In the southern hemisphere Winter atmospheric circulation Lateral resolution Coupling Ocean circulation patterns Resolution Simplified physical The coupled model
2014/12/10
A quasi-geostrophic model of Southern Hemisphere's wintertime atmospheric circulation with horizontal resolution T21 has been coupled to a global ocean circulation model with a resolution of 2° × 2° a...