Geomorphic models have a wide range of capabilities in terms of prediction, and this range is part of the reason for this volume. Haff [1996] pointed out that landscape-scale geomorphic models are fundamentally ill-suited to precise prediction and that reductionism is ill-suited to landscapescale problems. Geomorphic models run the gamut of spatial and temporal scales and modeling approaches, f...

Badlands and gullied areas are among those geomorphic environments with the highest erosion rates worldwide. Nevertheless, records of their evolution and their relations with anthropogenic land transformation are scarcer. Here we combine historical data with aerial photographs and tree-ring records to reconstruct the evolution of a badland in a Mediterranean environment of Central Spain. Histor...

Estimates of carbon store and carbon accumulation rate in mangrove and saltmarsh are beset by issues of scale and provenance. Estimates at a site do not allow scaling to regional estimates if the drivers of variability are not known. Also, carbon accumulation within soils provides a net offset only if carbon is derived in-situ, or would not otherwise be sequestered. We use a network of observat...

In this paper, a Bayesian framework is used to infer HiRISE-equivalent rock density from CTX image features without needing to explicitly identify rocks. The statistical relationship between HiRISE rock density and CTX image features is modeled using Bayesian Networks. The model is enriched by including geological features—specifically, geomorphic units. The geomorphic units are identified by g...

Aquatic ecosystems play an important role in the global carbon (C) cycle and represent substantial source of greenhouse gases to the atmosphere. However, little attention has been paid to quantifying how aquatic community respiration (CR), a major source of CO2, will respond to warming temperatures expected under climate change, and whether landscape features affect temperature modulation of CR...

As inferred from orbital spectroscopic data, Northeast Syrtis Major bears considerable mineral diversity that spans the Noachian-Hesperian boundary despite its small geographic area. In this study we use observations from the High Resolution Imaging Science Experiment, supplemented with Context Camera imagery, to characterize and map the lateral extent of geomorphic units in Northeast Syrtis Ma...

iran is well known for having countless historical and instrumental records of tectonic events. shahriary catchment, as a study area, is part of the zagros collision seismic province. this research aimed to introduce a new method which is useful in identifying the relative active tectonic events of an area. the research method was designed in order to calculate the relative active tectonic inde...

In recent years, various process-based models for the evolution of regional landform systems have been developed (Coulthard, 2001). Quantitative models have considerable use in applied geomorphology, but also represent a good means we have for testing and developing theoretical models. Nevertheless, there remains a considerable gap between the detailed quantitative representation of individual ...