Revisiting the C footprint of the Paix des Braves (Eastmain 1) Reservoir 17 years after flooding [Quebec, Canada]

This database comprises previously published and unpublished data on physicochemical and greenhouse gas dynamics from the Eastman-1 (Paix des Braves) reservoir from 2005 to 2022. In addition, the data repository includes a database of CO2 and CH4 concentrations and fluxes from lakes throughout Québec, both published and unpublished, and a data set of CO2 and CH4 concentrations and fluxes from hydroelectric reservoirs located throughout Québec, collected from 1993 to 2022. Various methodologies were used: floating chambers, measured partial pressures of dissolved gases in surface waters using headspace techniques, field campaigns, automated monitoring systems in generating stations. The purpose of the data was to study and assess one term trajectory of CO2 and CH4 fluxes in the Paix de Braves (Eastmain-1) reservoir, and to place these trajectories in the context of GHG dynamics of lakes and reservoirs across the Quebec landscape.

本数据库涵盖2005年至2022年间，取自Eastman-1（Paix des Braves）水库的已发表与未发表理化性质及温室气体（GHG, Greenhouse Gas）动态相关数据。此外，该数据存储库还包含覆盖魁北克全省湖泊的二氧化碳（CO2）、甲烷（CH4）浓度与通量的已发表及未发表数据库，以及1993年至2022年间收集的、覆盖魁北克全省水电水库的二氧化碳与甲烷浓度及通量数据集。本次数据采集采用了多种方法：浮动箱法、顶空技术测定地表水中溶解气体分压、野外实地调研以及发电站自动监测系统。本数据集的研究目的为分析并评估Paix des Braves（Eastmain-1）水库的二氧化碳与甲烷通量长期轨迹，并将此类轨迹置于魁北克全省湖泊及水库的温室气体动态研究框架之中。