(INTRODUCTION)
At the Department of Physical Geography in Uppsala problems of water sampling, especially for estimating sediment discharge, have for a long time received much attention. Hjulström (1935) describes two samplers. Hjulström (1939) and Sundborg (1956) have proposed certain conditions for an ideal sampler. Many attempts have been made to construct a sampler that meet these specifications. Sundborg also constructed a time- or point-integrating sampler of special value for investigations of the vertical distribution of the investigated object.
The demand for water investigations, which has increased rapidly during recent years, has made the problem of an ideal sampler a question of immediate interest. In this report some fundamental differences in sampling conditions are summarized and a new sampler and its experimental calibration is described.
Arkivexemplar i Uppsala universitets arkiv