Słowa kluczowe: instability indices, severe convective phenomena, convection inhibition, Poland, upper air soundings, thermal anomaly, Pacific Decadal Oscillation, Alaska, groundwater outflows, lake, water balance, basin, drowned source, physical and chemical parameters of water, mountain streams, variability in time-space, Babiogórski National Park, flood risk management, waters conservation, Warta Valley, integration conception, data fusion, image classification, Landsat 8, Sentinel-1A, the Żywiec Basin