Check out Benjamin Campforts’s recent JGR paper on how landslides govern river and landscape evolution here.
Big, big piles of sediment…
…sit at Earth’s passive continental margins. How can we use forward models of landscape and seascape evolution to read that stratigraphic record and infer something about past landscapes? In this new paper we use beautiful stratigraphic data from the southern Atlantic Ocean to find the optimal form of models for the development of passive margin stratigraphy over geologic time. Spoiler alert: margin evolution is dominated by nonlocal sediment transport events like marine landslides, turbidity currents, and marine debris flows.
Paper on how river deposits record climate change
Xiaoping Yuan leads a new paper in JGR: Solid Earth showing how fluvial sedimentary deposits might record variations in mean precipitation rate. Find it here .
Preprint on modeling marine stratigraphy
Model-data synthesis suggests that it is essential to incorporate nonlocal sediment transport processes into our stratigraphic forward models if we want to be able use stratigraphy to quantitatively infer past perturbations to landscapes. Check out the preprint!
Model of landslide-river interactions out now
Modeling wizard Benjamin Campforts (CU Boulder) has published HyLands 1.0, a new model that seeks to elucidate the interactions among landslides, landslide-derived sediment, and river incision that govern landscape evolution. Find the paper here!
Preprint on landslides and landscapes up for public discussion
Modeling landsliding and the fate of landslide-derived sediment helps us better understand both short-term geohazards and long-term landscape evolution. See Benjamin Campforts’s latest preprint up for public discussion in Geoscientific Model Development.
Three new papers out in JGR: Earth Surface
Which mathematical representation for geomorphic processes best matches a given study site? How can we test agreement or disagreement between models and reality? How should we determine what values to use for model parameters?
Three papers representing the culmination of ~four years of work (led by the indefatigable Katy Barnhart of CU Boulder) on these problems were just published in JGR: Earth Surface. Find part 1, part 2, and part 3.
Paper on river canyons out in Geology
How do feedbacks between rivers and their adjacent hillslopes control the shape and evolution of iconic river canyons? Myself and recently-defended ex-grad-student Rachel Glade did some modeling work to understand how big blocks of rock govern channel-hillslope coupling and canyon shape. Find the paper here.
Model analysis toolkit published in GMD
Check out Katy Barnhart’s multi-model analysis toolkit, “Terrainbento,” published today in Geoscientific Model Development.
New modeling toolkit up for public discussion
Katy Barnhart’s terrainbento model intercomparison toolkit is now up for public peer review in Geoscientific Model Development, a very cool EGU journal that’s starting to publish a lot of geomorphology-related modeling papers. If you do a lot of landscape evolution modeling terrainbento will almost certainly make your life easier.