Thread by @carolina_olid

Really excited to share our last paper about the importance of #groundwater discharge as driver of #methane emissions from #Arctic lakes published in @NatureComms !
nature.com/articles/s4146…

In this paper we sampled ten different lakes in the Abisko region to evaluate spatial and temporal patterns of groundwater discharge and implications in lake CH4 emissions (1/6)

A 222Rn mass balance revealed that groundwater discharge was an important water source for the lakes, with inflows comparable to those from inlet streams (2/6).

Due to the high concentrations of CH4 in groundwater, groundwater inflows represent an important source of CH4 to these lakes, which can account for a large fraction of CH4 emissions (3/6).

The comparison of the magnitude of groundwater CH4 inputs to lakes with other potential CH4 sources and sinks evidences that groundwater discharge is a major mechanism controlling CH4 cycling the Arctic (4/6).

We also discuss spatial and temporal patterns of these fluxes. But I am not going to explain everything here! (5/6)

Thanks @GRocherRos ,@phujigi ,@ValentiRodellas ,@aaronalorda , Marc Diego-Feliu, Jan Karlsson, and David Bastviken for your great work!! And thanks to @FormasForsk for funding my project (6/6).
@ArcticCIRC @UmeaUniversity @UniBarcelona @ICTA_UAB @GrabUab @UABBarcelona