搜索结果: 76-90 共查到“理学 numerical”相关记录670条 . 查询时间(0.132 秒)
Evaluating a lightning parameterization based on cloud-top height for mesoscale numerical model simulations
lightning parameterization cloud-top height mesoscale numerical model simulations
2014/12/16
The Price and Rind lightning parameterization based on cloud-top height is a commonly used method for predicting flash rate in global chemistry models. As mesoscale simulations begin to implement flas...
Coupling between the JULES land-surface scheme and the CCATT-BRAMS atmospheric chemistry model (JULES-CCATT-BRAMS1.0): applications to numerical weather forecasting and the CO2 budget in South America
JULES land-surface scheme the CCATT-BRAMS atmospheric
2014/12/12
This article presents the coupling of the JULES
surface model to the CCATT-BRAMS atmospheric chemistry model. This new numerical system is denominated
JULES-CCATT-BRAMS.
A test of numerical instability and stiffness in the parametrizations of the ARPEGE and ALADIN models
numerical instability stiffness
2014/12/12
Meteorological numerical weather prediction
(NWP) models solve a system of partial differential equations in time and space.
Numerical issues associated with compensating and competing processes in climate models: an example from ECHAM-HAM
Numerical issues associated compensating and competing processes climate models ECHAM-HAM
2014/12/12
The purpose of this paper is to draw attention to the need for appropriate numerical techniques to represent process interactions in climate models. In two versions of the ECHAM-HAM model, different t...
Numerical model of crustal accretion and cooling rates of fast-spreading mid-ocean ridges
Numerical model crustal accretion cooling rates fast-spreading mid-ocean ridges
2014/12/12
We designed a thermo-mechanical numerical model for fast-spreading mid-ocean ridge with variable viscosity, hydrothermal cooling, latent heat release, sheeted dyke layer, and variable melt intrusion p...
A hybrid Eulerian–Lagrangian numerical scheme for solving prognostic equations in fluid dynamics
A hybrid Eulerian–Lagrangian numerical scheme solving prognostic equations
2014/12/12
A new hybrid Eulerian–Lagrangian numerical
scheme (HEL) for solving prognostic equations in fluid dynamics is proposed. The basic idea is to use an Eulerian as
well as a fully Lagrangian repre...
Accuracy of the zeroth- and second-order shallow-ice approximation – numerical and theoretical results
second-order shallow-ice Accuracy of the zeroth
2014/12/12
In ice sheet modelling, the shallow-ice approximation (SIA) and second-order shallow-ice approximation
(SOSIA) schemes are approaches to approximate the solution of the full Stokes equations governin...
MEDSLIK-II, a Lagrangian marine surface oil spill model for short-term forecasting – Part 2: Numerical simulations and validations
hort-term forecasting MEDSLIK-II
2014/12/12
In this paper we use MEDSLIK-II, a Lagrangian marine surface oil spill model described in Part 1
(De Dominicis et al., 2013), to simulate oil slick transport and transformation processes for realisti...
A semi-implicit, second-order-accurate numerical model for multiphase underexpanded volcanic jets
semi-implicit second-order-accurate numerical model
2014/12/12
An improved version of the PDAC (Pyroclastic
Dispersal Analysis Code, Esposti Ongaro et al., 2007) numerical model for the simulation of multiphase volcanic
flows is presented and validated fo...
EMPOL 1.0: a new parameterization of pollen emission in numerical weather prediction models
pollen emission numerical weather prediction
2014/12/12
Simulating pollen concentrations with numerical
weather prediction (NWP) systems requires a parameterization for pollen emission.
An online trajectory module (version 1.0) for the nonhydrostatic numerical weather prediction model COSMO
online trajectory module nonhydrostatic numerical weather prediction model
2014/12/12
A module to calculate online trajectories has been
implemented into the nonhydrostatic limited-area weather
prediction and climate model COSMO.
"Gtool5": a Fortran90 library of input/output interfaces for self-descriptive multi-dimensional numerical data
Gtool5 Fortran90 library input/output interfaces self-descriptive multi-dimensional numerical data
2014/12/11
A Fortran90 input/output library, "gtool5", is developed for use with numerical simulation models in the fields of Earth and planetary sciences. The use of this library will simplify implementation of...
TopoSUB: a tool for efficient large area numerical modelling in complex topography at sub-grid scales
Global climate change the environment high resolution model grid lateral variation grid climate data sets
2014/12/10
Mountain regions are highly sensitive to global climate change. However, large scale assessments of mountain environments remain problematic due to the high resolution required of model grids to captu...
Numerical uncertainty at mesoscale in a Lagrangian model in complex terrain
Conservation of mass Lagrangian model euler model complex terrain Lagrangian particle dispersion models
2014/12/10
Recently, it has been shown that mass conservation in Lagrangian models is improved by using time-average winds out of Eulerian models. In this study, we evaluate the mass conservation and trajectory ...
Automated continuous verification for numerical simulation
Discrete Coding Mathematical model software
2014/12/9
Verification is a process crucially important for the final users of a computational model: code is useless if its results cannot be relied upon. Typically, verification is seen as a discrete event, p...