Significant contribution of lacustrine groundwater discharge to lake CH4 emissions: new evidences from high-resolution field observations

This dataset contains high-resolution field measurements of groundwater-derived methane fluxes, lake methane emissions, and associated hydrological and meteorological variables. Data were collected at two contrasting sites with strong and weak groundwater inputs over four consecutive days and nights, with an hourly sampling resolution.本数据集涵盖源自地下水的甲烷通量、湖泊甲烷排放及相关水文与气象变量的高分辨率野外实测数据。数据采集自两处地下水输入强度差异显著的对比站点，连续四天四夜开展观测，采样分辨率为每小时1次。