搜索结果: 1-15 共查到“水文学 dynamic”相关记录21条 . 查询时间(0.489 秒)
Numerical simulation of groundwater and early warnings from the simulated dynamic evolution trend in the plain area of Shenyang, Liaoning Province (P.R. China)
roundwater table Groundwater exploitation
2018/3/23
Groundwater level is the most direct factor reflecting whether groundwater is in a virtuous cycle. It is the most important benchmark for deciding whether a balance can be struck between groundwater d...
Input–output dynamic neural networks simulating inflow–outflow phenomena in an urban hydrological basin
Input–output dynamic neural networks inflow–outflow phenomena urban hydrological basin
2009/12/7
In this paper neural networks have been studied as a tool to realise a single-input single-output nonlinear dynamic system simulating rainfall-runoff transformation in a urban hydrological basin. The ...
Dynamic identifiability analysis of the transient storage model for solute transport in rivers
Dynamic identifiability analysis transient storage model solute transport
2009/12/4
The use of dynamic mathematical models to simulate the behaviour of environmental systems is common practice. However, the output of these models remains uncertain, despite their widespread use and lo...
The shape of a runoff hydrograph depends on the dynamic properties of the
rainfall. The possible range of impact of the rainfall movement on runoff
generating process can only be judged if the rainf...
The Dynamic Calibration of Tipping-Bucket Raingauges
Dynamic Calibration Tipping-Bucket Raingauges
2009/10/27
The dynamic calibration of three types of tipping-bucket raingauges extensively
used in the Nordic countries was performed. The tested and calibrated gauges
were: "LTH gauge", PLUMATIC gauge and RIM...
Dynamic Ice Breakup Control for the Connecticut River near Windsor,Vermont
Dynamic Ice Breakup Control Connecticut River Windsor
2009/10/27
The Cornish-Windsor bridge is the longest covered bridge in the United States
and has significant historical value. Dynamic ice breakup of the Connecticut
River can threaten the bridge and cause flo...
Kinematic Model of River Ice Motion During Dynamic Breakup
Kinematic Model River Ice Motion Dynamic Breakup
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...
A DYNAMIC SOIL WATER MODEL FOR ENVIRONMENTAL SIMULATION PROBLEMS
soil water model Runge-Kutta Gill algorithm dimensional flow
2009/10/13
A soil water model of one dimensional flow, using the Runge-Kutta Gill algorithm, is described with the aim of forming a flexible general purpose simulation tool. The problem of 憇tiffness?appearing in...
The hydraulic exponents which appear in the regime theory equations are predicted using different methods such as an empirical function, extremal energy slope, or extremal stream power. These hydrauli...
A dynamic rating curve approach to indirect discharge measurement
dynamic rating curve steady-flow indirect discharge measurement
2009/7/22
The operational measurement of discharge in medium and large rivers is mostly based on indirect approaches by converting water stages into discharge on the basis of steady-flow rating curves. Unfortu...
Using a spatio-temporal dynamic state-space model with the EM algorithm to patch gaps in daily riverflow series
patch gaps daily riverflow series
2009/5/18
A spatio-temporal linear dynamic model has been developed for patching short gaps in daily river runoff series. The model was cast in a state-space form in which the state variable was estimated using...
A conceptual dynamic vegetation-soil model for arid and semiarid zones
vegetation-soil model semiarid zones arid
2009/5/6
Plant ecosystems in arid and semiarid climates show high complexity, since they depend on water availability to carry out their vital processes. In these climates, water stress is the main factor cont...
Dynamic analysis of groundwater discharge and partial-area contribution to Pukemanga Stream, New Zealand
Dynamic analysis groundwater discharge
2009/5/4
The proportion and origin of groundwater contribution to streamflow from agricultural catchments is relevant to estimation of the effects of nitrate leached from the soil on the quality of surface wat...
Prediction for temporal changes of cell concentration of the cyanobacterium Microcystis in Tenryu River, using the fluid dynamic model of cyanobacteria
range of the shift determination of initial concentration of Microcystis
2009/4/1
A toxic cyanobacterial bloom caused by Microcystis occurs from spring to autumn in Lake Suwa, a eutrophic lake in Japan. The distribution of Microcystis cells in the Tenryu River flowing from Lake Suw...
The HYREX dense raingauge network over the Brue catchment in Somerset, England is used to explore the accuracy of calibrated (raingauge-adjusted) weather radar data. Calibration is restricted to the u...