搜索结果: 226-240 共查到“知识库 地球科学总论”相关记录3449条 . 查询时间(3.949 秒)
Refinement of a model for evaluating the population exposure in an urban area
population exposure urban area
<
2014/12/19
A mathematical model is presented for the determination of human exposure to ambient air pollution in an
urban area; the model is a refined version of a previously developed mathematical model ...
Simulations of direct and reflected wave trajectories for ground-based GNSS-R experiments
Simulations of direct refl ected wave trajectories
<
2014/12/19
The detection of Global Navigation Satellite System (GNSS) signals that are reflected off the surface, along
with the reception of direct GNSS signals, offers a unique
opportunity to monitor w...
Optimization of NWP model closure parameters using total energy norm of forecast error as a target
NWP model closure parameters forecast error
<
2014/12/19
We explore the use of dry total energy norm in
improving numerical weather prediction (NWP) model forecast skill. The Ensemble Prediction and Parameter Estimation System (EPPES) is utilized to estima...
SimSphere model sensitivity analysis towards establishing its use for deriving key parameters characterising land surface interactions
SimSphere model sensitivity establishing
<
2014/12/19
Being able to accurately estimate parameters characterising land surface interactions is currently a key scientific priority due to their central role in the Earth’s global
energy and water cyc...
A multiresolution spatial parameterization for the estimation of fossil-fuel carbon dioxide emissions via atmospheric inversions
multiresolution spatial parameterization estimation
<
2014/12/19
The characterization of fossil-fuel CO2 (ffCO2)
emissions is paramount to carbon cycle studies, but the use
of atmospheric inverse modeling approaches for this purpose has been limited by the highly...
Direct numerical simulations of particle-laden density currents with adaptive, discontinuous finite elements
particle-laden density currents adaptive
<
2014/12/19
High-resolution direct numerical simulations
(DNSs) are an important tool for the detailed analysis of
turbidity current dynamics. Models that resolve the vertical
structure and turbulence of the &...
Modeling radiocarbon dynamics in soils: SOILR version 1.1
soils Modeling radiocarbon dynamics
<
2014/12/19
Radiocarbon is an important tracer of the global
carbon cycle that helps to understand carbon dynamics in
soils. It is useful to estimate rates of organic matter cycling as
well as the mean residen...
Optimization of a prognostic biosphere model for terrestrial biomass and atmospheric CO2 variability
prognostic biosphere model terrestrial biomass atmospheric CO2 variability
<
2014/12/19
This study investigates the capacity of a prognostic biosphere model to simulate global variability in atmospheric CO2 concentrations and vegetation carbon dynamics under current environmental conditi...
On linking an Earth system model to the equilibrium carbon representation of an economically optimizing land use model
economically optimizing land global scale
<
2014/12/19
Human activities are significantly altering biogeochemical cycles at the global scale, and the scope of these activities will change with both future climate and socioeconomic decisions. This poses a ...
A flexible three-dimensional stratocumulus, cumulus and cirrus cloud generator (3DCLOUD) based on drastically simplified atmospheric equations and the Fourier transform framework
A flexible three-dimensional stratocumulus cumulus cirrus cloud generator drastically simplified atmospheric equations Fourier transform framework
<
2014/12/19
The 3DCLOUD algorithm for generating stochastic three-dimensional (3-D) cloud fields is described in this paper. The generated outputs are 3-D optical depth (τ) for stratocumulus and cumulus fields an...
Development of two-moment cloud microphysics for liquid and ice within the NASA Goddard Earth Observing System Model (GEOS-5)
two-moment cloud microphysics liquid and ice within NASA Goddard Earth Observing System Model
<
2014/12/19
This work presents the development of a two-moment cloud microphysics scheme within version 5 of the NASA Goddard Earth Observing System (GEOS-5). The scheme includes the implementation of a comprehen...
CycloTRACK (v1.0) – tracking winter extratropical cyclones based on relative vorticity: sensitivity to data filtering and other relevant parameters
winter extratropical cyclones relative vorticity sensitivity to data filtering other relevant parameters
<
2014/12/19
In this study we present a new cyclone identification and tracking algorithm, cycloTRACK. The algorithm describes an iterative process. At each time step it identifies all potential cyclone centers, d...
Air quality forecasts on a kilometer-scale grid over complex Spanish terrains
complex Spanish terrains kilometer-scale
<
2014/12/19
The CALIOPE Air Quality Forecast System
(CALIOPE-AQFS) represents the current state of the art in
air quality forecasting systems of high-resolution running on
high-performance computing platforms....
Ice sheet dynamics within an earth system model: downscaling, coupling and first results
earth system model downscaling
<
2014/12/19
We present first results from a coupled model
setup, consisting of the state-of-the-art ice sheet model
RIMBAY (Revised Ice Model Based on frAnk pattYn), and
the community earth system model ...
A model using marginal efficiency of investment to analyze carbon and nitrogen interactions in terrestrial ecosystems (ACONITE Version 1)
marginal effi ciency investment to analyze carbon
<
2014/12/19
Carbon (C) and nitrogen (N) cycles are coupled
in terrestrial ecosystems through multiple processes including photosynthesis, tissue allocation, respiration, N fixation,
N uptake, and decompos...