Seasonal Variability in Material Fluxes Through Rivers and Streams on the North Slope of Alaska

Midshipman Researcher(s): 1/C Haven Cofer

Adviser(s): Associate Professor Joseph P. Smith and CDR Shawn Gallaher

Poster #80

Regional changes in climate are impacting North Slope Alaska watershed landscapes through enhanced permafrost thaw and degradation and alteration of hydrologic processes. Results of the biogeochemical analyses of river and stream samples collected from June – October 2019 and mixing estimates show that during high discharge conditions in the open water season, integrated material inputs from smaller tundra streams can significantly alter surface water biogeochemistry in and constituent fluxes through larger rivers that discharge into the Arctic Ocean. Such variability can be used as an indicator of material contributions from changing tundra landscapes.

Full Size Oceanography #80