Abstract
Monitoring large (underwater) surfaces, with strongly varying composition, requires a sampling density, exceeding the capabilities of standard techniques. These techniques involve sample collection and a number of treatments and measurements in laboratory; both steps are laborious, tedious and costly. This paper shows that a trailing detector system of natural gamma-rays provides quantitative information on the dynamics at and around a waste disposal site. In this paper the technique is applied to monitor dumpsites of gold mines from an aircraft and the dispersal of dredge spoil from Rotterdam harbour dumped at the North Sea by vessel. The sea-floor monitoring has been conducted in detail, including the derivation of sediment composition and assessing by means of a mass-balance equation the transport directions and quantities in time.
| Original language | English |
|---|---|
| Pages (from-to) | 139-147 |
| Number of pages | 9 |
| Journal | Physica Scripta |
| Volume | T97 |
| Publication status | Published - 2002 |
| Event | 3rd Conference on Physics and Industrial Development - , South Africa Duration: 4-Sept-2000 → 7-Sept-2000 |