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Kinematic Model of River Ice Motion During Dynamic Breakup
Kinematic Model River Ice Motion Dynamic Breakup
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2009/10/26
We begin a study of the dynamics of ice motion during river breakup by
formulating a kinematic model. Ice continuity equations are applied to relate
the speeds of a breaking front, a convergence fro...
Tracer Test in Fractured Chalk 2.Numerical Analysis
Tracer Test Fractured Chalk Numerical Analysis
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2009/10/26
A two-well tracer test carried out in fractured chalk was analyzed using a threedimensional
finite-difference model for flow and transport which, was constructed
on the basis of the geological and h...
Tracer Test in Fractured Chalk 1.Experimental Design and Results
Tracer Test Fractured Chalk Experimental Design
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2009/10/26
A two-well tracer test was conducted in eastern Denmark, in which a short
duration pulse of lithium chloride was injected into a recharge well and made to
flow through a fractured chalk aquifer to a...
Potential Evaporation—A Matter of Definition
Potential Evaporation Matter of Definition
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2009/10/26
The aim of this paper is to discuss the concept of potential evaporation and its
use in runoff models. The potential evaporation for forest is defined on basis of
estimated minimum canopy resistance...
Low Flow Estimation and Hydrogeology in a Chalk Catchment
Low Flow Estimation Hydrogeology Chalk Catchment
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2009/10/26
Procedures to estimate low flow statistics at ungauged sites and their relation to
hydrogeology are presented. The discussion is based on an example of a Danish
chalk catchment of 242 kmz, within wh...
Simulation of Discharge using Different Methods of Meteorological Data Distribution,Basin Discretization and Snow Modelling
Simulation of Discharge Meteorological Data Basin Discretization Snow Modelling
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2009/10/26
This contribution investigates the performance of discharge modelling when
proceeding from rather simple methods of snowmelt modelling to more sophisticated,
distributed approaches. In all cases, th...
The Role of Turbulent Heat Fluxes in the Energy Balance of High Alpine Snow Cover
Turbulent Heat Fluxes Energy Balance High Alpine Snow Cover
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2009/10/26
Energy balance measurements over a seasonal snow cover were performed
near Davos, Switzerland at 2,540 m a.s.1. The energy fluxes were studied over
dry and melting snow covers. The beginning of snow...
On Currents and Vertical Mixing in Lake Ontario during Summer Stratification
Currents and Vertical Mixing Lake Ontario Summer Stratification
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2009/10/26
Currents and vertical mixing characteristics were investigated on the basis of
time series of current meter and temperature data from a summer-stratified
period in Lake Ontario. The experimental set...
Prediction of Log-Transmissivity 1.Using Specific Capacity
Prediction Log-Transmissivity Specific Capacity
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2009/10/26
The log-transmissivity may in many cases be predicted from the log-transformed
specific capacity of wells by applying a linear statistical model. The
coefficients of the linear equation can be estim...
几条水文学定理·定律和推论研究初探
水文学 定理 定律 推论
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2009/10/26
提出了水文学定理、定律及推论的概念，并结合水文学实际，总结出几条水文学定理、定律和推论，为加快水文学理论在这方面的发展并进一步促进生产技术水平的提高提供参考。
Prediction of Log-Transmissivity 2.Using Lithology and Specific Capacity
Prediction Log-Transmissivity Lithology Specific Capacity
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2009/10/26
Two physically based models are derived that can be used to predict the log-transmissivity from the lithology, e.g. as logged in boreholes. The first model uses the lithology as the only predictor, wh...
Frost Heave due to Ice Lens Formation in Freezing Soils 2.Field Application
Frost Heave Ice Lens Formation Freezing Soils Field Application
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2009/10/26
An operational model for estimation of frost heave in field where stratified soil
profile appears is presented. The model is developed from the research model
described in part B. Soil layers are fi...
Frost Heave due to Ice Lens Formation in Freezing Soils 1.Theory and Verification
Frost Heave Ice Lens Formation Freezing Soils Theory and Verification
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2009/10/26
A frost heave model which simulates formation of ice lenses is developed for
saturated salt-free soils. Quasi-steady state heat and mass flow is considered.
Special attention is paid to the transmit...
Spring Circulation Associated with the Thermal Bar in Large Temperate Lakes
Spring Circulation Thermal Bar Large Temperate Lakes
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2009/10/26
The overall circulation pattern in spring is rather specific as density-induced
currents may be of significance. The density-driven circulation perpendicular to
the shore can be described as consist...
Effects of Hydrology on the Thermal Conditions of the Active Layer
Effects of Hydrology Thermal Conditions Active Layer
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2009/10/26
Ground thawing and soil warming arc governed by ground heat flux, soil thermal
properties and the ice content of the soil, all of which are directly or indircctly
inlluenced by the soil moisture sta...