Patagonia

"synergistic roles of climate warming and human occupation in patagonian megafaunal extinctions during the last deglaciation.", by Metcalf JL, Turney C, Barnett R, Martin F, Bray SC, Vilstrup JT, Orlando L, Salas-Gismondi R, Loponte D, Medina M, De Nigris M, Civalero T, Fernández PM, Gasco A, Duran V, Seymour KL, Otaola C, Gil A, Paunero R, Prevosti FJ, Bradshaw CJ, Wheeler JC, Borrero L, Austin JJ, Cooper A. F1: Extinction chronology of Pleistocene megafauna in southern Patagonia (9000 to 18,000 years ago), shown against West Antarctic Ice Sheet Divide ice δ18O record (bottom) and the timing of Antarctic Cold Reversal chronozone (blue column)...

The Deep Dirt Farm Institute, started and directed by Kate Tirion, consists of 34 acres with deep agricultural soils, bisected by an ephemeral stream/wildlife hallway. Using the high-resolution channel measurements, we created a bare-earth DEM to get the cross-sections for each and every section of the gully bed. Ephemeral stream restoration with rock structures is kept an eye on over 3-years utilizing T-Lidar; Terrestrial lidar change detection reveals erosion and deposition through time. We then used the information tas input to watershed and hydraulic models to imitate land surface area changes and exactly how structures impact geomorphology. Watershed model anticipate height flow discharges and are input to 2D circulation models; 2D hydraulic model predict changes in circulation network, depth, and velocity topography.

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