- Plattform: Windows 98 / Me / 2000 / XP
- Medium: CD-ROM
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Synopsis
The application of natural isotopes, stable as well as radioactive, has become a widespread tool for hydrological research, especially surface - and groundwater behaviour and exploration. By far the most common isotopes applied are those of the elements of hydrogen, oxygen and carbon, crucial in the water cycle. The concentration ratios of the stable isotopes in water (2H/1H, 18O/16O) vary, depending on the source of the water and natural processes such as evaporation and condensation. The radioactive isotopes 3H and 14C may provide indications - depending on natural conditions - of the source of water and the age, i.e. the time elapsed since infiltration. This is a textbook, explaining in a simple, but mathematically, physically and chemically correct form, the consequences of natural processes to stable isotope concentrations and radioactivities, but also containing indications of possible applications without the pretension of a cookbook.After the more or less theoretical introduction, the elements of the water cycle are treated successively: precipitation - globally, regionally and locally; different forms of surface water - rivers, rivulets and small streams, lakes and stagnant waters, estuaries and the sea; and groundwater - infiltration and groundwater flow. The book avoids complicated case studies. These have been given in a variety of existing handbooks. It contains three appendices, dealing with water sample treatment in the field and in the laboratory; measurement techniques for stable and radioactive isotopes; and the inorganic carbon chemistry of water, needed for understanding the behaviour of the carbon isotopes. The book is intended for students in the Earth Sciences, especially in Hydrology; trainees from developing countries; laboratory technicians and assistants; engineers involved in (geo)hydrological fieldwork and anyone who starts his work in natural abundances of stable or radioactive isotopes.
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