Needs entry for isotopeInterpretation1_name. Inferred material is missing.

The extent of isotopic enrichment of surface waters from meteoric water is determined by the degree of evaporative enrichment of the water body (Leng and Anderson, 2003). Therefore, ... the ?D of lipids produced by aquatic plants (?Daq) tracks the degree of evaporative isotopic enrichment of lake water from meteoric water...."The relatively D-enriched values (more positive ?D) of ?D25 and ?D27 are consistent with our interpretation that these compounds reflect isotopically enriched lake water."

dD values of long-chain n-alkanes (dDwax) reflect dD of water used by terrestrial vegetation after modification by biosynthetic processes (Sachse et al., 2012 and references therein). Soil mois- ture provides the source water for terrestrial plants, while lake water is the source for aquatic macrophytes and algae. dD of water in soils can be modified to some extent from dD of annual precipitation by evaporation. However, it has been shown that dDwax is unaltered by plants following leaf formation and there- fore reflects dDwater used during leaf flush (Kahmen et al., 2011; Sachse et al., 2010; Tipple et al., 2013). In the Arctic, the majority of leaf formation takes place in late spring/early summer follow- ing the return of appreciable sunlight. Because snowmelt is the predominant water source available to plants at the time of leaf formation, the dDwax is potentially biased toward wintertime dDp (i.e. snowfall months). In Tasiilaq, the difference between precipitation-weighted annual average dDp (?92?) and precipitation- weighted average dDp during months with below zero average temperatures (October-April; ?96?) is negligible (Bowen, 2008; Cappelen et al., 2011), and thus, any changes in the timing of leaf formation during the Holocene, or in the seasonality of precipita- tion, are unlikely to have had much impact on dDwaxd

Needs entry for isotopeInterpretation1_name (GF). Inferred material is missing. ET: duplicate of LS13BAFLC