搜索结果: 151-165 共查到“理学 regional”相关记录358条 . 查询时间(0.263 秒)
The comprehensive model system COSMO-ART – Radiative impact of aerosol on the state of the atmosphere on the regional scale
COSMO-ART aerosol atmosphere regional scale
2009/11/19
A new fully online coupled model system developed for the evaluation of the interaction of aerosol particles with the atmosphere on the regional scale is described. The model system is based on the op...
An elevated large-scale dust veil from the Taklimakan Desert: Intercontinental transport and three-dimensional structure as captured by CALIPSO and regional and global models
large-scale dust Taklimakan Desert CALIPSO
2009/11/19
An intense dust storm occurred during 19–20 May 2007 over the Taklimakan Desert in northwestern China. Over the following days, the space-borne lidar CALIOP tracked an optically thin, highly elevated,...
Clouds, photolysis and regional tropospheric ozone budgets
Clouds photolysis regional tropospheric ozone budgets
2009/11/19
We use a three-dimensional chemical transport model to examine the shortwave radiative effects of clouds on the tropospheric ozone budget. In addition to looking at changes in global concentrations as...
Neural-network-based prediction techniques for single station modeling and regional mapping of the foF2 and M(3000)F2 ionospheric characteristics
Neural-network-based prediction techniques single station modeling regional mapping ionospheric characteristics
2009/11/12
In this work, Neural-Network-based single-station hourly daily foF2 and M(3000)F2 modelling of 15 European ionospheric stations is investigated. The data used are neural networks and hourly daily valu...
Lagrangian predictability of high-resolution regional models:the special case of the Gulf of Mexico
Lagrangian predictability high-resolution regional models special case Gulf of Mexico
2009/11/11
The Lagrangian prediction skill (model ability to reproduce Lagrangian drifter trajectories) of the nowcast/forecast system developed for the Gulf of Mexico at the University of Colorado at Boulder is...
Statistical characteristics of irreversible predictability time in regional ocean models
Statistical characteristics irreversible predictability time regional ocean models
2009/11/9
Probabilistic aspects of regional ocean model predictability is analyzed using the probability density function (PDF) of the irreversible predictability time (IPT) (called τ-PDF) computed from an unco...
On stochastic stability of regional ocean models with uncertainty in wind forcing
stochastic stability regional ocean models uncertainty in wind forcing
2009/11/3
A shallow-water model was used to understand model error induced by non-Gaussian wind uncertainty. Although the model was simple, it described a generic system with many degrees of freedom randomized ...
The Use of Environmental Isotope Techniques together with Conventional Methods in Regional Groundwater Studies
Environmental Isotope Techniques Conventional Methods Regional Groundwater Studies
2009/10/29
Regional hydrological investigations of the subsurface drainage in the neovolcanic
area around lake Thorisvatn on the central Icelandic plateau have been
carried out as well as geological exploratio...
Optimal Allocation of Regional Water Resources
Optimal Allocation Regional Water Resources
2009/10/29
A methodology is presented for the optimal allocation of water resources in a
region, considering the economic and hydrologic characteristics of the water
resources system. In order to systematicall...
Soil Moisture Deficits in South-Central Sweden I-Seasonal and Regional Distributions
Soil Moisture Deficits South-Central Sweden Seasonal and Regional Distributions
2009/10/27
Some commonly used assumptions about climatically induced soil moisture
fluxes within years and between different parts of a region were challenged
with the help of a conceptual soil moisture model....
Regional Exceedance Probabilities
Regional Exceedance Probabilities regional flood frequency
2009/10/27
Construction of a regional flood frequency curve is based, as a rule, on fitting this curve to representative quantiles. In a regional sample of floods the probability of extreme values corresponding ...
PDS-Modelling and Regional Bayesian Estimation of Extreme Rainfalls
PDS-Modelling Regional Bayesian Estimation Extreme Rainfalls
2009/10/26
Since 1979 a country-wide system of raingauges has been operated in Denmark
in order to obtain a better basis for design and analysis of urban drainage
systems. As an alternative to the traditional ...
Regional Flood Relationships by Nonparametric Regression
Regional Flood Relationships Nonparametric Regression
2009/10/26
Since some theoretical assumptions needed in linear regression are not always
fulfilled in practical applications, nonparametric regression was investigated as
an alternative method in regional floo...
Modelling regional scale surface fluxes,meteorology and CO2 mixing ratios for the Cabauw tower in the Netherlands
regional scale surface fluxes meteorology CO2 mixing ratios Cabauw tower
2010/1/21
We simulated meteorology and atmospheric CO2 transport over the Netherlands with the mesoscale model RAMS-Leaf3 coupled to the biospheric CO2 flux model 5PM. The results were compared with meteorologi...
Estimating Regional Precipitation Trends Comparison of two Methods
Regional Precipitation Trends Comparison two Methods
2009/10/23
Two different methods werc applied to estimate long-term precipitation trends
representativ'e for regions in Norway. A new method, comparative trend analysis
(CTA), was applied on 142 homogeneous pr...