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Showing 1 to 10 of 10 for “"Topographic wetness index"”.
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The distribution and diversity of an entire assemblage of Plecoptera (stoneflies) inhabiting Indiana, USA
… associated with Plecoptera species richness, topographic wetness index, HUC8 area, percent soil hydrologic group C/D, and percent historic wetland ecosystem. Hierarchical Partitioning indicated topographic wetness index, HUC8 area, and percent cherty red clay surface geology as significantly …
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Hydrological Connectivity - a study into representative metrics for a humid temperate catchment in northern England.
… to solve this problem, generating metrics and indexes in order to predict the potential for connectivity spatially and temporally. This study focused on ascertaining the relative success of these different approaches for a humid temperate catchment in northern England. It was found that simple …
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Spatial Pattern Analysis of Tree Species Distribution in a Central Appalachian Upland Heath Barren
… variables, including ground curvature and topographic wetness index, to understand potential relationships between ambient conditions and spatial pattern. The spatial statistics, Ripley's K-function and nearest neighbor analysis, presented a series of different interaction types reflected …
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Digital terrain analysis to predict soil spatial patterns at the Hubbard Brook Experimental Forest
Topographic analysis using digital elevation models (DEMs) has become commonplace in soil and hydrologic modeling and analysis and there has been considerable assessment of the effects of grid resolution on topographic metrics using DEMs of 10 m resolution or coarser. However, examining fine-scale …
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Hydrologic and topographic analyses of bog turtle (Glyptemys muhlenbergii) wetlands
… their groundwater inputs which influences site wetness. To explore relationships between water level dynamics and wetland spatial features, we conducted regression analyses using water level metrics and water temperature regimes (indicators of groundwater seeps) as predictors of the extent of …
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Wetland hydrology and soils as components of Virginia bog turtle (Glyptemys muhlenbergii) habitat
… data to compare land cover, stream order, topographic wetness index inverse, presence of hydric soils, and presence of National Wetland Indicator (NWI) wetlands on bog turtle occupied wetlands (n=50) to the same variables on apparently unoccupied (n=48) wetlands or random areas (n=74) along …
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Using Geophysics and Terrestrial LiDAR to Assess Stormwater Parameters in Vacant Lots in Philadelphia
… subcatchments in the SWMM model, and calculate a topographic wetness index (TWI). The TWI is a microtopography-based predictor of where runoff will collect and infiltrate. The TWI assumes a homogeneous infiltration rate and that runoff is routed by topography. This TWI was compared with soil …
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Desarrollo de un modelo de geoprocesamiento para la valoración productiva y tributaria de tierras agrícolas en Venezuela
… significant (p≈0), and a global kappa index of 76%. Likewise, a geoprocess was developed to predict the Land Use Vocation within the study area, working from six indexes equivalent to the physicalnatural, socioeconomic and political components of the Land Use Vocation definition. The …
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A collection of statistical methods for applications in tree demography
… covariates such as elevation, soil wetness measured by a topographic wetness index, and the aspect of the slope. We provide a detailed discussion of our modeling approach and the workflow for using the package, including a case study motivated by the empirical data from the previous …
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Probabilistic Modeling of Shallow Landslides at Regional Scales
… slope stability equation coupled to steady-state topographic flow routing using a Monte Carlo approach. The uncertainty of soil depth often ignored in landslide hazard modeling is address by a soil development model, and subsurface flow recharge is obtained from the Variable Infiltration Capacity …