搜索结果: 76-90 共查到“理学 Uncertainty”相关记录172条 . 查询时间(0.04 秒)
The role of hydrological model complexity and uncertainty in climate change impact assessment
hydrological model complexity climate
2010/2/3
Little quantitative knowledge is as yet available about the role of hydrological model complexity for climate change impact assessment. This study investigates and compares the varieties of different ...
Assessment of conceptual model uncertainty for the regional aquifer Pampa del Tamarugal – North Chile
conceptual model uncertainty regional aquifer Pampa del Tamarugal North Chile
2010/2/20
In this work we assess the uncertainty in modelling the groundwater flow for the Pampa del Tamarugal Aquifer (PTA) – North Chile using a novel and fully integrated multi-model approach aimed at explic...
Assessment of conceptual model uncertainty for the regional aquifer Pampa del Tamarugal – North Chile
conceptual model uncertainty regional aquifer Pampa Tamarugal North Chile
2010/3/5
In this work we assess the uncertainty in modelling the groundwater flow for the Pampa del Tamarugal Aquifer (PTA) – North Chile using a novel and fully integrated multi-model approach aimed at explic...
Quantifying the discharge forecast uncertainty by different approaches to probabilistic quantitative precipitation forecast
discharge forecast forecast
2010/1/27
A probabilistic approach to flood prediction over the Reno river basin, a medium-sized catchment in Northern Italy, has been tested using two different meteorological ensemble systems. The future prec...
Assessing uncertainty in radar measurements on simplified meteorological scenarios
Assessing uncertainty simplified meteorological scenarios
2010/1/27
A three-dimensional radar simulator model (RSM) developed by Haase (1998) is coupled with the nonhydrostatic mesoscale weather forecast model Lokal-Modell (LM). The radar simulator is able to model re...
Polarization Diffusion from Spacetime Uncertainty
Cosmic Microwave Background Polarization Diffusion Spacetime Uncertainty
2010/3/18
A model of Lorentz invariant random fluctuations in photon polarization is presented. The effects are frequency dependent and affect the polarization of photons as they propagate through space. We tes...
Optimal stopping of expected profit and cost yields in an investment under uncertainty
variational inequalities cost yields expected profit
2010/4/27
We consider a finite horizon optimal stopping problem related to trade-off strategies between expected profit and cost cash-flows of an investment under uncertainty. The optimal problem is first formu...
The Generalized Uncertainty Principle and Quantum Gravity Phenomenology
Quantum Gravity Phenomenology
2010/3/19
In this article we examine a Generalized Uncertainty Principle which differs from the Heisenberg Uncertainty Principle by terms linear and quadratic in particle momenta, as proposed by the authors in ...
Quantum Black Hole in the Generalized Uncertainty Principle Framework
Quantum Black Hole Uncertainty Principle Framework
2010/3/17
In this paper we study the effects of the Generalized Uncertainty Principle (GUP) on canonical quantum gravity of black holes. Through the use of modified partition function that involves the effects ...
Dealing with uncertainty:turbulent parameterizations and grid-spacing effects in numerical modelling of deep moist convective processes
turbulent parameterizations grid-spacing effects deep moist convective processes
2009/12/10
Computer power has grown to the point that very-fine-mesh mesoscale modelling is now possible. Going down through scales is clumsily supposed to reduce uncertainty and to improve the predictive abilit...
Dealing with uncertainty:an analysis of the severe weather events over Italy in 2006
uncertainty analysis severe weather events Italy 2006
2009/12/10
Forecast verification is a long-standing issue of the whole meteorologists' community. A common definition of a truly satisfying prediction skill has not been achieved so far. Even the definition of "...
Estimation and propagation of parametric uncertainty in environmental models
Estimation propagation parametric uncertainty environmental models
2009/12/4
It is proposed that a numerical environmental model cannot be justified for predictive tasks without an implicit uncertainty analysis which uses reliable and transparent methods. Various methods of un...
Handling uncertainty in the hydroinformatic process
Handling uncertainty hydroinformatic process
2009/12/4
Hydroinformatics combines topics of modelling and decision-making, both of which have attracted a great deal of attention outside hydroinformatics from the point of view of uncertainty. Epistemic unce...
Spatial decisions under uncertainty:fuzzy inference in urban water management
Spatial decisions under uncertainty fuzzy inference urban water management
2009/12/4
The endogenous complexity and spatial nature of the problems encountered in the urban water management environment present decision-makers with three major problems: (a) in the urban environment, ever...
Sensitivity and uncertainty analysis for river quality modelling
Sensitivity analysis uncertainty analysis river quality modelling
2009/12/4
Uncertainty analysis for model simulation is of growing importance in the field of water quality management. The importance of this concern is provided by recent public awareness over health risks fro...