Lake and reservoir volume variability from satellite imagery data: An assessment of the usability of high-resolution digital elevation models to extract water levels

Recent research suggested that the digital elevation models can be considered, as an alternative to the altimetry data. However, the water prohibits the ability of monitoring the construction the waterbed, due to the loss of the returning signal. The elevation models have therefore a flat surface, which prohibits the extraction of the water...

Synthesis of SBW belastingen

The Dutch Water Act (in Dutch: 'Waterwet 2009') stipulates that water boards must assess the quality of their primary water defences every six years. The Statutory Safety Assessment Suite (in Dutch: 'Wettelijk Toetsinstrumentarium', or shortly WTI) prescribes the rules to be applied. The WTI mainly comprises of the Safety Test Regulations (VTV),...

Water levels at Hon Dau (Vietnam)

Handwritten tables with observed hourly waterlevels at the tidal station of Hon Dau (near Hai Phong in Vietnam) covering the period 1975-1995.

Morphological reaction of rivers due to sediment mining

In many rivers sediment is mined at same distance from the river mouth. Examples are the Brantas river at Java, Indonesia and the Mekong river, Thailand. This study contains the research of sediment mining in general. The sediment mining has its consequences on the river morphology: The bedlevel and the waterlevel decrease downstream as weIl as...

Probabilistic determination of Design Waterlevels in the Eastern Scheldt

A probabilistic coitiputation method for the determination of the design waterlevel of a dam or dyke is presented. The results of the application of the method in the Eastern Scheldt estuary are shown

Jamuna bridge project river works

In this part of the graduation report concerning the Jamuna Bridge Project in Bangla Desh, the main issues are the following : - An elaborate inventarisation of parameters and qualities of the Jamuna River system which are of consequence for the design concept of the river training works as weIl as the bridge itself. In this context special...

Optimization of monitoring networks in rivers in tidal lowlands

In this project it is attempted to find optimum values of distances between measurement locations on a tidal river. The study aims at estimating waterlevels along a tidal river as well as their confidence intervals when measured values at some fixed points are given. Several procedures to estimate the waterlevels are compared with each other. In...

Electronic computation of water levels in rivers during high discharges

If we plot the discharges of natural water-courses measured under all manner of circumstances against the water levels measured at the same time, the points obtained win give us what is called the stage-discharge relation curve. But it should be noted that the relation win only be a true one ifthere is no backwater effect (due, for exampIe, to a...