Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Leo Vallner"'
Autor:
Rein Vaikmäe, Joonas Pärn, Valle Raidla, Jüri Ivask, Enn Kaup, Werner Aeschbach, Christoph Gerber, Jean-Michel Lemieux, Roland Purtschert, Arnaud Sterckx, Tõnu Martma, Leo Vallner
Publikováno v:
Estonian Journal of Earth Sciences, Vol 70, Iss 3, Pp 152-164 (2021)
We review our current understanding of groundwater flow history in the northern part of the Baltic Artesian Basin (BAB) from the end of the Late Pleistocene to current conditions based on the hydrogeological studies carried out in 2012â2020 by the D
Externí odkaz:
https://doaj.org/article/77b164cc32bf4a878c36806fb3173101
Publikováno v:
Estonian Journal of Earth Sciences, Vol 69, Iss 3, Pp 154-174 (2020)
It is proved that a transient 3D distribution of 18O concentration in a regional-scale heterogeneous multi-layered aquifer system can be numerically simulated by codes MODFLOW-2005 and MT3DMS as a boundary problem. An optimum method of the transition
Externí odkaz:
https://doaj.org/article/26dab79195c64855ab9633e96525e2bd
Autor:
Leo Vallner, Andres Marandi
Publikováno v:
Estonian Journal of Earth Sciences, Vol 59, Iss 4, Pp 277-287 (2010)
The Cambrian–Vendian aquifer system is the most exploited groundwater resource in northern Estonia. As a result, the extensive use of groundwater has caused changes in the direction and velocity of groundwater flow in the Tallinn area. A groundwa
Externí odkaz:
https://doaj.org/article/6c68f6c236d1458daf7fe057bb529e0b
Publikováno v:
Science of The Total Environment. :400-415
The main wastes of the Estonian shale oil industry – oil shale semi-coke and ashes – are deposited in landfills. The Kohtla-Jarve oil shale semi-coke and ash landfill, which is likely the largest of its kind in the World, was started in 1938. The
Publikováno v:
Resources, Conservation and Recycling. 55:232-245
With 0.5–1.0% of the world's oil shale reserves, Estonia mines more than 48% of the total world oil shale output. Electricity, thermal energy and shale oil are produced from oil shale in Estonia. Enterprises operating on oil shale have been the mai
Autor:
Leo Vallner
Publikováno v:
Limnologica - Ecology and Management of Inland Waters. (3):282-285
For a sustainable development of Estonia's coastal region it is necessary to achieve a balanced proportion between purified surface water and deep groundwater for public drinking water supplies. Special attention should be directed to problems of sea