Photo credit: Heidi Rodenhizer.

Introduction

This page contains the most recent summaries of carbon fluxes from the Eight Mile Lake Site in Healy, Alaska. Data depicted here have undergone initial QA/QC, but are subject to change and do not constitute a published product. For finalized data please see our repository on Ameriflux (US-EML).

Cumulative Net Ecosystem Exchange (NEE)

This plot shows the cumulative flux of carbon (as carbon dioxide) to the atmosphere since eddy covariance measurements at Eight Mile Lake began in May 2008. Scroll over the time series to see the data. Values below zero represent cumulative net carbon uptake into the ecosystem; above zero is cumulative net carbon release into the atmosphere.

The full site carbon flux time series starts in 2004 combining clear flux chamber measurements with eddy covariance. The latest analysis is published here: Schuur et al. 2021. Tundra underlain by thawing permafrost persistently emits carbon to the atmosphere over 15 years of measurements. Journal of Geophysical Research: Biogeosciences, 126, e2020JG006044. https://doi.org/10.1029/2020JG006044

Monthly carbon fluxes since 2008

Boxplots depicting average monthly carbon exchange at Eight Mile Lake since May 2008. Points outside of the black whiskers denote statistical outliers. Red points show most recent monthly values (2022). Scroll over the timeseries to see the data.