Hostname: page-component-78c5997874-fbnjt Total loading time: 0 Render date: 2024-11-03T00:38:17.606Z Has data issue: false hasContentIssue false

Sounding through sea and lake ice in Finland

Published online by Cambridge University Press:  27 October 2009

Extract

The coasts of Finland are fringed by vast and labyrinthine archipelagos, in which wooded islands with small hills obstruct visibility. This is a great hind-rance to topographical survey. On the other hand, conditions for carrying out hydrographic survey are excellent, as positions can be fixed on the basis of a rectangular lattice of lines run easily and accurately along the surface of the ice. There was in the past every encouragement to adopt this method of survey, as the coastal waters and the lakes in central Finland are ice-covered for some 5 months every year (from December to April) and in the northern parts of the country for an even longer period. It is true that the work is hindered by the cold, but in early spring (March and April) surveying can generally be carried out in satisfactory conditions.

Type
Articles
Copyright
Copyright © Cambridge University Press 1952

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)