Search results
23 paź 2020 · Key Points. Carbon isotopes, 14 C and 13 C, in atmospheric CO 2 are changing in response to fossil fuel emissions and other human activities. Future simulations using different SSPs show continued changes in isotopic ratios that depend on fossil fuel emissions and, for 13 C, BECCS.
28 wrz 2021 · Stable isotopes of hydrogen, carbon and oxygen are used to investigate numerous physical and chemical processes in the water and inorganic carbon cycles. Measuring and comparing natural...
1 gru 2019 · TDLAS measures the mixing ratios of stable isotopes of carbon dioxide in the air (e.g., the isotopologues, 12 C 16 O 2, 13 C 16 O 2 and 16 O 12 C 18 O) by comparing the infrared absorption of sample and reference gases in a specific absorption line of the spectrum (Santos et al., 2012).
22 wrz 2022 · The distribution of dissolved inorganic carbon (DIC), as the largest reservoir of carbon (38,000 Gt C) in the oceans (Key et al., 2004; Schuur et al., 2016), has a vast potential impact on the global carbon cycle and climate change (Broecker et al., 1985; Key et al., 2004; Tagliabue and Bopp, 2008).
18 sie 2023 · Carbon isotopes can be used to study the sources and sinks of CO2 in the atmosphere, and to understand the role of different types of vegetation in the carbon cycle. Oxygen isotopes can be used to study the sources and sinks of water vapor in the atmosphere, and to understand the effects of climate change on precipitation patterns.
1 sty 2004 · Iso- topic analyses of CO2 and CH4 provide key tools for better understanding global bud- gets of these trace gases. In this chapter we describe two different methods for measuring carbon and oxygen isotopes in atmospheric CO2 and a method for measur- ing carbon isotopes in atmospheric CH4.
Key Points: • Carbon isotopes, 14C and 13C, in atmospheric CO 2 are changing in response to fossil fuel emissions and other human activities • Future simulations using different SSPs show continued changes in isotopic ratios that depend on fossil fuel emissions and, for 13C, BECCS • Applications using atmospheric 14C and 13C in studies of ...
