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environnement - iate.europa.eu
0 1990, by the american society of limnology and oceanography, inc. alkalinities of maine lakes: are they really changing?... Modern (late summer 1985) Gran alkalinities for the hypolimnion were compared with historical alkalinities computed using: tog,JHCO,-1 = PH(T)- PK’,( ~ + log[HXO,*l where pH(T) is the historic reported calorimetric pH at each hypolimnctic sampling depth and temperature, pK’,(T) the temperature-dependent negative logarithm of the first dissociation con-s’tant for carbonic acid, and H,CO, * represents initial CO, at last spring overturn, plus the change in CO, associated with the hypolimnetic oxygen deficit developed over summer (estimated from the historic oxygen data)....
général - core.ac.uk - PDF: www.aslo.org
Multiple cascading effects in freshwater ecosystems: from atmospheric modes to interannual plankton fluctuations... The first studies carried out in Lake Garda proved how the winter NAO had only a slight, non-significant influence on the winter climate and water temperatures at maximum spring overturn....
Influence of atmospheric modes of variability on a deep lake south of the alps... These modifications were controlled through a linked chain of factors, which included lower winter lake water temperatures, deep lake circulation episodes, and higher replenishment of epilimnetic phosphorus at spring overturn....
Spatial and trophic biomonitoring of trace metals in aquatic environments following the mt. polley mine tailings spill... These effects appear to have seasonal variations, with stronger trophic and spatial relationships during spring overturn of Quesnel Lake.spatialbiofilmtrophicbioaccumulationQuesnel...
 PDF: arcabc.ca
0 1985, by the american sociely of limnology and oceanography, relationships between phosphorus loading and trophic state in calcareous lakes of southeast wisconsin... The total P and molybdate-reactive P concentrations during winter and spring overturn are significantly higher in the calcareous lakes than predicted by models based on regional studies of Canadian Shield (ELA) lakes and the central New York Finger...

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politique des transports / transports aérien et spatial - iate.europa.eu
milieu naturel - acta.es
électronique et électrotechnique / sciences naturelles et appliquées - iate.europa.eu
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