Why is overturn important

Figures, Tables, and Topics from this paper. Citation Type. Has PDF. Publication Type. More Filters. Lake overturn as a key driver for methane oxidation. Many seasonally stratified lakes accumulate substantial amounts of the greenhouse gas methane in the anoxic zone. Methane oxidizing bacteria in the water column act as a converter, oxidizing methane … Expand.

Growth and rapid succession of methanotrophs effectively limit methane release during lake overturn. View 2 excerpts, cites background. Exceptional summer warming leads to contrasting outcomes for methane cycling in small Arctic lakes of Greenland. In thermally stratified lakes, the greatest annual methane emissions typically occur during thermal overturn events.

In July of , Greenland experienced significant warming that resulted … Expand. Highly Influenced. View 5 excerpts, cites background. Our results provide evidence that not all of the stored methane is released to the atmosphere during the overturn period. However, the fraction of stored methane emitted to the atmosphere during overturn may be substantially larger and the fraction of stored methane oxidized may be smaller than in the previous studies suggesting high oxidation losses of methane.

The development or change in the vertical extent and duration of the anoxic hypolimnion, which can represent the main source of annual methane emissions from small lakes, may be an important aspect to consider for impact assessments of climate warming on the methane emissions from lakes. Smart citations by scite. The number of the statements may be higher than the number of citations provided by EuropePMC if one paper cites another multiple times or lower if scite has not yet processed some of the citing articles.

Explore citation contexts and check if this article has been supported or disputed. Growth and rapid succession of methanotrophs effectively limit methane release during lake overturn. Contrasting methane emissions from upstream and downstream rivers and their associated subtropical reservoir in eastern China. Sediment fluxes rather than oxic methanogenesis explain diffusive CH 4 emissions from lakes and reservoirs.

Full-scale evaluation of methane production under oxic conditions in a mesotrophic lake. Initial report on methane and carbon dioxide emission dynamics from sub-Antarctic freshwater ecosystems: A seasonal study of a lake and a reservoir.

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So how does this radioactive decay work? Carbon has three forms, or isotopes: 12C, 13C, and 14C, where the different numbers refer to different atomic weights.

They have the same chemistry, but only 14C is lost through time. We measure the rate of decay with a term called a half-life. At this point you might be asking how decaying carbon got into the ocean in the first place.

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