Wilgen als oeverbescherming in kribrakken

Al enige jaren geleden is Rijkswaterstaat begonnen met een onderzoek naar de mogelijkheid om wilgen als oeverbescherming in kribvakken te laten fungeren, dit in het kader van PMO (Project Milieuvriendelijke Oevers) en Plan Ooievaar. Tot op heden is er zeer weinig bekend over de civieltechnische functie van de wilgen op de kribvakoevers. Om meer...

Coastal Defence and the Environment: A guide to good practice

CHAPTER 1: INTRODUCTION 1.1 The need for coastal defence 1.2 The need for coastal conservation 1.3 The need for environmental guidance CHAPTER 2: LEGAL AND ADMINISTRATIVE BACKGROUND 2.1 Coastal defence legislation and responsibilities 2.2 Environmental legislation and responsibilities 2.3 The Planning System 2.4 Environmental Assessment 2.5...

Behaviour-Oriented Models Applied to Shoreface Profile Evolution

A possible approach for the development of simple predictive methods of shoreface profile evolution is described. By application of a detailed process-based, cross-shore morphodynamic model and of some inductive assumptions we build simple descriptions which reproduce possible behaviours of the upper zones of shoreface profile as a function of...

Defense of Shorelines by Structural Approaches

Structural approaches can be employed to stabilize shorelines against erosion, to provide sheltered areas for swimming or for a myriad of other benefits. In this section, the emphasis will be on shoreline stabilization although much of the information and discussions presented would be equally applicable to accomplish other objectives. Three...

Sand erosion at the toe of a gabion-protected dune face

The purpose of this research project was to study the manner in which erosion takes place the the toe of a dune slope protected by gabions, and to examine the response of the gabions to this erosion. A sand slope overlaid by model gabions was subjected to wave attack in a hydraulic flume, and periodic measurements of the bottom profile were...

Shoreline Change and Strom-Induced Beach Erosion Modeling: A Collection of Seven Papers

This report consists of seven papers dealing with numerical simulation of beach change that were recently published by members of the Coastal Engineering Research Center, US Army Engineer Waterways Experiment Station, and colleagues from other organizations. The papers collectively provide an overview of the state of research and engineering...

Bar-generating cross-shore flow mechanisms on a beach Barre provoquant des mecanismes d' ecoulement perpendiculaires a la plage

Improvement of the superposition of geographical data in KOSMOSS

Since mid 1982, the Royal Netherlands Meteorological Institute KNMI has to its possession a ground station (KOSMOSS), which receives and processes high resolution imagery, acquired from Tiros-N type weather satellites. To determine the weather positions in the images, the ground station is equipped with the capability to superpose, in real time,...

On-line superposition of geographical data to tiros-N type meteorological satellite images

A method is described, by which geographical data are superposed in real time to the high resolution HRPT imagery, received from the TIROS-N series satellites. The superposition of additional geographical data is important for an accurate position determination of the image data. Computations necessary for the transformation, conversion and...

Flexible structures in river and stream training works and earth retaining works, using Maccaferri gabions and Reno mattresses

Set of design manuals for the use of gabions and mattresses in river and channel training works. The four volumes focus on: - Flexible structures in river and stream training works (section 1, weirs for river training and water supply); - Flexible linings in Reno mattresses and gabions for canals and canalized water courses; - Flexible gabion...