Carbon flux from aquatic ecosystems of the Arctic Coastal Plain along the Beaufort Sea, Alaska, 2010-2018

Multiple aquatic ecosystems (pond, lake, river, lagoon, ocean) on the
Arctic Coastal Plain (ACP) near Utqiaġvik, Alaska, United States of America were visited to
determine their relative contribution to landscape-level atmospheric
carbon dioxide (CO2) flux and how this may have changed over time. pCO2 (partial
pressure of carbon dioxide) was monitored in late summer (late July to
mid-August) over a period of four years (2013, 2015, 2017, 2018) from
open water areas and is related to habitat type, dissolved organic
carbon (DOC) and environmental factors (temperature, radiation,
rainfall). Data include both daily averages from most sites, as well
as spatial representation of pCO2 in Elson Lagoon and diel cycles of
pCO2 from a tundra pond. Pond net ecosystem production (NEP) is
estimated by free water metabolism and presented as daily estimates
over a four summer period.