Modern Earth is experiencing unprecedented changes to our climate, biogeochemical environment, and physical landscape. Understanding the impact of rapid changes and gauging the success of societal response requires modern chronometry– a means for measuring rates of change over historical timescales. FRNA is a collaborative effort to develop short-lived radiogenic isotope (SLR) and fallout radionuclide (FRN) chronometers to understand changes to atmospheric aerosols, rivers, forests, landscapes, and the biogeochemical connections among them.
We are scientists in ecology, hydrology, geomorphology, geochemistry, carbon and Hg cycles, all converging with common interests to environmental changes among four principal themes:
- modern soil processes, carbon storage, and fate of atmospheric mercury (Hg)
- climate impacts on river headwater-hillslope coupling, river sediment dynamics, carbon and contaminant transport
- Arctic hillslope erosion, sediment and carbon transport
- environmental systematics of FRNs and soil/sedimentary archives
We offer fee-for-service analyses of short-lived radionuclides by gamma spectroscopy, please inquire for details. joshua.d.landis@dartmouth.edu