Supplemental figures for "Impacts of Aquatic Vegetation Dynamics on Nitrate Removal in Karst Agricultural Streams: Insights From Unmanned Aircraft Systems and In Situ Sensing"

In this manuscript, we highlight the following:

1. Coupling automated segmentation and classification procedures to visible spectrum imagery from UAS captured spatial and temporal distribution of floating aquatic macrophytes in a karst agricultural stream.
2. High-frequency in situ sensors were utilized to quantify stream metabolism for the karst agroecosystem, and findings contrasted similar systems, reflecting the regulation of the low-flow regime facilitating duckweed proliferation.
3. Diurnal nitrate variability shifted due to changes in aquatic vegetation, illustrating contrasting processes governing nitrate removal in the channel throughout the growing season.
4. Comparing results of nitrate monitoring with an extreme learning machine model illustrated the utility of coupling the in situ and aerial imagery for identifying limitations of model performance.