Abstract Hand scanners are compact, lightweight, and capable of generating 3-D digital models. Although they do not compare to conventional methods (terrestrial laser scanning photogrammetry) in terms coverage, resolution, accuracy, offer increased mobility, speed, real-time processing capabilities the field. This study investigates use hand for real-time, outcrop modeling augment geological fi...

Shallow Radar (SHARAD) on board NASA’s Mars Reconnaissance Orbiter has successfully detected tens of reflectors in the subsurface of the north polar layered deposits (NPLD) of Mars. Radar reflections are hypothesized to originate from the same material interfaces that result in visible layering. As a first step towards verifying this assumption, this study uses signal analyses and geometric com...

The Moenave Formation was deposited during latest Triassic to earliest Jurassic time in a mosaic of fluvial, lacustrine, and eolian subenvironments. Ephemeral streams that flowed north-northwest (relative to modern geographic position) deposited singleand multi-storeyed trough cross-bedded sands on an open floodplain. Sheet flow deposited mainly silt across broad interchannel flats. Perennial l...

Both the hardware and software available for digital geological mapping (DGM) have advanced considerably in recent years. Mobile computers have become cheaper, lighter, faster and more power efficient. Global Positioning Systems (GPS) have become cheaper, smaller and more accurate, and software specifically designed for geological mapping has become available. These advances have now reached a ...

In most bucket-type hydrological models, water can only flow from the groundwater to stream and flux is based on storage. However, many catchments have losing sections, where streamflow recharges groundwater. We developed a formulation represent recharge by streamwater in model tested this for Panola Mountain Research Watershed demonstrate its function assess performance. The upper reach of cat...

This study evaluates land use change within the upper catchment area of Ala river, Akure, Ondo State over a period 31 years (1986-2017) using Landsat Thematic Mapper (TM) 5 1986, Enhanced Plus (ETM+) 7 2002, and 8 OLI / TIRS 2017. The normalized difference vegetation index (NDVI), surface runoff terrain configuration were analysed ArcGIS 10.5 software. Three types identified namely; built up, b...