CO₂ and CH₄ fluxes and energy balance at the Kopytkowo eddy-covariance site (Biebrza National Park, northeastern Poland), 2013–2024

The file PL_Biebrza_Kopytkowo_fluxes_2013_2024.csv contains monthly mean values of eddy-covariance greenhouse gas fluxes and associated meteorological variables collected at the Kopytkowo eddy-covariance site (53°35'30.7"N, 22°53'32.6"E; WGS84) located in Biebrza National Park, Poland. The dataset covers the period 2013–2024. Fluxes were derived from high-frequency measurements processed using EddyPro 6.0 (LI-COR Biosciences) following standard eddy-covariance procedures including quality control, coordinate rotation, density corrections, and uncertainty estimation. Monthly values were calculated from hourly measurements after quality filtering and gap-filling where applicable. High-resolution and recent data (hourly, daily) are available upon request from: Department of Meteorology and Climatology, University of Lodz, Poland Contact persons: · Krzysztof Fortuniak - [e-mail] · Włodzimierz Pawlak - [e-mail] Access may require a separate data-sharing agreement. ## AcknowledgementsThis dataset was collected within the project funded by the National Science Centre, Poland (projects: 2011/01/B/ST10/07550; UMO-2015/17/B/ST10/02187; UMO-2020/37/B/ST10/01219). The author thank the authorities of the Biebrza National Park for allowing continuous measurements in the area of the Park.文件PL_Biebrza_Kopytkowo_fluxes_2013_2024.csv收录了波兰别布扎国家公园内Kopytkowo涡度协方差（eddy-covariance）观测场（坐标：53°35′30.7″N，22°53′32.6″E，采用WGS84坐标系）的涡度协方差温室气体通量及相关气象变量的月均值数据。 本数据集涵盖2013年至2024年的观测时段。 通量数据源自高频观测序列，采用EddyPro 6.0（LI-COR Biosciences）软件，按照标准涡度协方差处理流程完成加工，流程包含质量控制、坐标旋转、密度校正及不确定性估算环节。 月度均值由经过质量过滤与间隙填充（视情况适用）的逐时观测数据计算得到。 高分辨率的最新观测数据（逐时、逐日数据）可通过以下渠道申请获取： 波兰罗兹大学气象与气候学系 联系人： · Krzysztof Fortuniak - [e-mail] · Włodzimierz Pawlak - [e-mail] 数据获取可能需要签署单独的数据共享协议。 ## 致谢 本数据集的采集工作依托波兰国家科学中心资助的项目完成（项目编号：2011/01/B/ST10/07550；UMO-2015/17/B/ST10/02187；UMO-2020/37/B/ST10/01219）。 作者感谢别布扎国家公园管理部门允许在公园区域内开展连续观测。