Radar interferometry is a technique which makes use of interfered signal of two radar echoes for topographic elevation and terrain element mapping. ERS Synthetic Aperture Radar (SAR) tandem pair with minimum possible temporal baseline of 1-day and with precise orbit control to obtain suitable interferometric spatial baseline is appropriate for interferometric study in terrain analysis. In this ...

[1] Ecosystems of dry climates are a particularly interesting subject for ecohydrological studies, as water is generally considered to be the key limiting resource. This work focuses on vegetation-water-energy dynamics occurring on the complex terrain of a semiarid area characteristic of central New Mexico. The study employs a mechanistic model of coupled interactions to construct a set of nume...

AB%rKA(:f.-Canopy gaps in southern Appalachian mixed-oak forests were assessed foxthe effects of topographic, gap and stand variables on density of wood seedlings. Seedling density was significantly correlated with percent slope and positively with gap age (l-5 yr). Density varied substantially among topographic positions and increased with gap size. Specirs richness decreased ovt’itime and inc...

Topographic eminence is a basic level category representing all convex shaped topographic landforms rising above their immediate surroundings. As opposed to everyday objects, the properties of an eminence are dependent on how it is conceptualized and where it is delineated. Research has shown that there are multiple conceptualizations of eminences (and other landforms) depending on cultural and...

[1] By recognizing that oceanic overflows follow the seafloor morphology, which shows a self-similar structure at spatial scales ranging from 100 km to 1 m, the impact of topographic bumps on entrainment in gravity currents is investigated using a 3D nonhydrostatic spectral element model. It is found that a bumpy surface can lead to a significant enhancement of entrainment compared to a smooth ...

Nepal is a landlocked country in southern Asia, between China and India, with a total land area of 140,800 square kilometres. Topographic variations are extreme and the terrain has a general southward slope. The topography ranges from rugged high Himalaya in the north, to the central hill region, to the lower-lying Siwalik Range (south-central) and down to the ‘terai’ or flat river plain in the...

Based on maps, which are derived from Airborne-Laserscanning (ALS) elevation data, a tour-planning software for winter sports has been realized. This software will be published in cooperation with the Styrian Avalanche Warning Service (Lawinenwarndienst Steiermark). It allows the user to derive information from topographic basemaps, orthophotos, slope maps, aspect maps and vegetation maps. The ...

The Zhangcheng District is critically responsible for protecting water resources, preserving sand sources, and improving the ecological environment in Beijing. Quantitative evaluation research on ecosystem supply services this area are beneficial developing conservation planning establishing compensation mechanisms areas. In paper, based land use, meteorological, soil, field observation data of...

The topography of the eastern Southern Alps (ESA) reflects indenter tectonics causing crustal shortening, surface uplift, and erosional response. Fluvial drainages were perturbed by Pleistocene glaciations that locally excavated alpine valleys. The Late Miocene desiccation of the Mediterranean Sea and the uplift of the northern Molasse Basin led to significant base level changes in the far fiel...

Abstract. Excess export of nitrate to streams affects ecosystem structure and functions has been an environmental issue attracting worldwide attention. The dynamics catchment-scale solute from diffuse nitrogen sources can be explained by the changes dominant flow paths, as attenuation (including degradation nitrate) is linked age composition outflow. Previous data-driven studies suggested that ...