Year 4

• Water year 2017-18 monitoring of the inorganic carbon system (pH and total alkalinity) in the Upper Clark Fork River (Montana, USA)

• Water year 2019 monitoring of the inorganic carbon system (pH and total alkalinity) in the Upper Clark Fork River (Montana, USA)

• 2017 seasonal high frequency monitoring of Upper Clark Fork River (Montana, USA) dissolved carbon dioxide, pH, and electrical conductivity

• Polarimetric characterization of a monochromator to measure the spectral response of a pixelated polarization imager

• Comparing the polarimetric response of hyperspectral imagers

• Water and nitrate loss from dryland agricultural soils is controlled by management, soils, and weather