Introduction: Deltas, fans and channels on Mars clearly indicate surface water in the past. These landforms contain valuable information about the duration and magnitude of surface-water flow, with obvious implications for potential life on Mars. Martian fan-shaped deposits such as deltas and alluvial fans show architectural elements similar to those of terrestrial analogs, e.g. lobes, terraces...

Derivative maps generated from DEM's and panchromatic remote sensing data (TM Landsat 7 or SPOT) can be used to characterize surficial basin deposits in arid regions dominated by basin and range topography. Results indicate the technique is useful for rapid digital mapping of surficial deposits where a first order, systematic subdivision of bedrock, alluvial fan units, and playas is unavailable...

A four-day glacier-melt flood (13–16 August 2013) caused abrupt geomorphic changes in the proglacial gravel-bed Scott River, which drains small (10 km2) Glacier catchment (SW Svalbard). This type of occurs on Svalbard increasingly during periods abnormally warm or rainy weather summer early autumn, and probability occurrence grows direct proportion to increase temperature and/or precipitation i...

In this paper we suggest that linguistic features can show traces of the frequency and intensity social interactions between indigenous peoples. We focus on peoples alluvial fan Pilcomayo River (South American Chaco), analyze first-person non-singular verbal encoding in their languages. The corpus is composed (a) data obtained during fieldwork, (b) descriptive grammars, (c) published reports by...

Open-framework gravels (OFGs) form common lithofacies of alluvial fans. However, inferences their mechanisms transport and deposition, controls on distribution in alluvial-fan successions, remain difficult, limiting our ability to interpret the environmental significance such deposits predict distributions ancient successions. From an applied standpoint, predictions are important development hy...

[1] Longitudinal profiles from six alluvial fans surveyed in southwestern California have quantitative attributes that can distinguish formation processes. The radial slope of fans where debris flow processes dominated is constant while fluvially-fed fans have a concave-upward shape. We find the power law regression of upstream slope-distance profiles is the preferred approach for assessing con...

There is a need to automate terrain feature mapping so that to make the process more objective and less time consuming by using proper feature extraction techniques. The objective of this study was the use of object-oriented image analysis methods for the automatic extraction of physiographic regions and alluvial fan landform units. The study area was located in Nevada, USA. The data used inclu...

The Osawa River, which has its headwaters at the top of Mt. Fuji, one largest failure in Japan, Failure, uppermost part catchment. Failure produces more than 100,000m 3 sediment every year by erosion and collapse, causes debris flows slash avalanches. Since opening 1970, Fuji Sabo Office been observing dynamics River through field surveys, observation equipment aerial photogrammetry, laser surv...