Evaluation of Riparian Vegetation Along the Free-flowing San Pedro River and Nearly-unaltered Virgin River with a New Evapotranspiration Algorithm using Gridded Daymet and Landsat EVI2 to Monitor Trends over Two Decades

Pamela L Nagler1, Armando Barreto-munoz2, Ibrahima Sall3 and Kamel Didan2, (1)USGS Southwest Biological Science Center, Tucson, United States, (2)University of Arizona, Biosystems Engineering, Tucson, AZ, United States, (3)University of Arizona, Department of Agricultural and Resource Economics, Tucson, AZ, United States