High spatial resolution prediction of tritium (³H) in contemporary global precipitation.

ABSTRACT: Tritium (³H) in Earth's precipitation is vigilantly monitored since historical nuclear bomb tests because of radiological protection considerations and its invaluable role as a tracer of the global water cycle in quantifying surface, groundwater, and oceanic fluxes. For hydrological applications, accurate knowledge of ³H in contemporary local precipitation is prerequisite for dating of critical zone water and calibrating hydrogeologic transport and groundwater protection models. However, local tritium input in precipitation is hard to constrain due to few ³H observation sites. We present new high-spatial resolution global prediction maps of multi-year mean ³H in contemporary "post-bomb" (2008-2018) precipitation by using a robust regression model

SUBMITTER: Terzer-Wassmuth S 

PROVIDER: S-EPMC9205854 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature