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topographicslope, etc ; computer software; sediments; watershed management; Show all 4 Subjects
Abstract:
... Sediment connectivity is the capability of a system to regulate the exchange of sediment in catchments. The Index of Connectivity (IC) has become a widely used tool, offering a practical way to assess sediment connectivity from hillslopes to downstream channels. We present a novel implementation of IC in R environment to expand the audience of users and encourage alternative applications of the in ...
topographicslope, etc ; evolution; gully erosion; runoff; watersheds; Romania; Show all 6 Subjects
Abstract:
... Intense gully erosion has sculptured remarkable channels into the Moldavian Plateau of eastern Romania, especially in its most representative subunit, the Bârlad Plateau covering >8000 km². The permanent gully types are: (1) discontinuous gullies, mostly located on hillslopes and (2) large continuous gullies in valley bottoms.This study seeks to improve our understanding of the development of disc ...
topographicslope, etc ; aquifers; models; soil; subsurface drainage; water table; Show all 6 Subjects
Abstract:
... An analytical model is developed using the homotopy perturbation (HP) method for predicting explicitly the location of water table heights resulting from steady drainage of a homogeneous sloping aquifer overlying a uniformly sloping impervious barrier at a finite distance from the top of the soil. The model assumes the aquifer to receive a steady recharge at its surface, the drains to have equal w ...
topographicslope, etc ; agronomy; economic feasibility; hemp; males; monoecy; prototypes; Show all 7 Subjects
Abstract:
... After many decades when its cultivation was prohibited, hemp is regaining its position as one of the most versatile cultivated crops. Multiplication of monoecious hemp varieties requires manual male plants rouging to keep a high share of monoecious plants in the population. It forces relatively small multiplication fields usually oscillating around 5 ha, where the use of big harvesting machines is ...
topographicslope, etc ; groundwater; longevity; models; research; saturated hydraulic conductivity; Show all 6 Subjects
Abstract:
... Spatially integrated transport models have been applied widely to model hydrologic transport. However, we lack simple and process‐based theoretical tools to predict the transport closures—transit time distributions (TTDs) and StorAge Selection (SAS) functions. This limits our ability to infer characteristics of hydrologic systems from tracer observations and to make first‐order estimates of SAS fu ...
topographicslope, etc ; forests; landscapes; models; mountains; runoff; sediments; watersheds; Show all 8 Subjects
Abstract:
... Forest roads significantly affect sediment connectivity in mountainous catchments by contributing to the production of and disturbing the confluence of sediment-loaded runoff. This study considered forest roads as pathways and sinks of sediment-loaded runoff to understand the effects of forest roads on the confluence characteristics and sediment connectivity in mountainous a catchment using a scen ...
topographicslope, etc ; altitude; climatology; subtropics; temperate zones; temperature; China; Show all 7 Subjects
Abstract:
... It is of great significance to study on the shift of temperature zone boundaries for revealing the climate change pattern and its environmental effects. Based on daily average temperature data from 32 standard meteorological stations in the Qinling Mountains from 1964 to 2015, the growing season start and end (GSS and GSE) of the climatic growing season parameters were calculated based on a temper ...
topographicslope, etc ; floodplains; groundwater; humans; piezometers; research; rivers; streams; Quebec; Show all 9 Subjects
Abstract:
... In agricultural watersheds, human interventions such as channel straightening have disrupted the hydrologic connectivity between headwater streams and their riparian environment and have thus undermined the ecological services provided by these small streams. Knowledge of the hydrologic connectivity between these streams and their immediate environment (shallow riparian groundwater in the historic ...
topographicslope, etc ; drought; ecosystems; evapotranspiration; vegetation types; water management; China; Show all 7 Subjects
Abstract:
... A deep understanding of the response characteristics of vegetation to drought is important for ecosystem and water resource management. In this study, we investigate spatiotemporal patterns of vegetation responses to droughts and their causes in the Qinling Mountains (QMs). The study showed that (1) there was a significant positive correlation (p < 0.05) between the Normalized Difference Degetatio ...
topographicslope, etc ; Pleistocene epoch; climate; coasts; mathematical models; tectonics; California; Show all 7 Subjects
Abstract:
... Improved understanding of marine terrace development and morphology can provide better estimates of historical sea levels and tectonic uplift rates. Using a numerical model, this study explored the relative influence of environmental controls on late Pleistocene marine terrace widths on San Clemente Island (SCI) and in the Santa Cruz region (SCZ) in southern and central California, respectively. T ...
topographicslope, etc ; Landsat; catenas; earthquakes; landslides; lithology; rain; regrowth; vegetation; Show all 9 Subjects
Abstract:
... A major earthquake can trigger numerous landslides, which exert severe impacts on regional vegetation coverage. In some years following an earthquake, rainstorms can easily reactivate coseismic deposits and unstable hillslopes. Vegetation can improve the post-seismic slope instability by the root reinforcement effect, and it is significant to investigate the changes of surface recovery at coseismi ...
topographicslope, etc ; advection; air; basins; heat; research; troposphere; winter; China; Show all 9 Subjects
Abstract:
... Frequently generated lower troposphere inversions (LTIs) above the planetary boundary layer (PBL) are a unique feature of the Sichuan Basin (SB), adjacent to the Tibetan Plateau (TP). However, the knowledge of LTI genesis and development mechanisms remains limited. In this study, radiosonde measurements and the fifth generation European Centre for Medium-Range Weather Forecasts (ECMWF) global atmo ...
topographicslope, etc ; autumn; climatology; data collection; hydrology; oceanography; spring; summer; winter; Show all 9 Subjects
Abstract:
... We present the first observational-based assessment of the seasonal circulation and volume transport driven by the Bransfield Current (BC), a surface-intensified coastal jet which flows northeastward along the southern slope of the South Shetland Islands (SSI) in the Bransfield Strait (BS). To this aim, we construct a seasonal climatology based on an extensive dataset of direct velocity measuremen ...
topographicslope, etc ; basins; hydrodynamics; models; research; runoff; spatial variation; streams; Chile; Show all 9 Subjects
Abstract:
... Various dispersion mechanisms are known to link the spatial heterogeneity of the basin morphology and flow dynamics to the hydrologic response. Recent studies have conducted spatial analysis of the kinematic and geomorphological dispersion coefficients that characterize these mechanisms, as well as identified the influence of hillslopes, channels, and runoff production on their values. Nevertheles ...
topographicslope, etc ; data collection; ecosystems; environment; forest types; ice; lidar; models; Show all 8 Subjects
Abstract:
... Two space-borne LiDAR missions (Global Ecosystem Dynamics Investigation, GEDI; Ice, Cloud, and land Elevation Satellite-2, ICESat-2) have unique advantages in retrieving forest heights. Fusing these two missions will greatly increase the number of forest height samples and realize their geographical complementarity, providing unprecedented opportunities for global forest height mapping. However, I ...
topographicslope, etc ; electrical resistance; hydrology; land; models; tomography; uncertainty; water content; Show all 8 Subjects
Abstract:
... Geoelectrical methods can be part of early warning systems for landslide-prone hillslopes by giving estimates of the water content distribution. Structurally constrained inversions of geoelectrical data can improve the water content estimation by reducing the smoothness constraint along known lithological boundaries, which is especially important for landslides, as often layers with strongly diver ...
topographicslope, etc ; body weight; fish; ichthyology; indigenous species; rivers; Himalayan region; Show all 7 Subjects
Abstract:
... Length‐weight relationships (LWRs) were estimated for nine endemic fish species from six trans‐border rivers (Sutlej Tsangpo, Niang Chu, Kirong Tsangpo, Poi Chu, Phung Chu and Yadong River) in the southern slope of the Himalaya of China. All specimens were collected using drift gill nets (mesh size: 10, 30 and 50 mm; length: 25 m; depth: 1.2 m) and circle dip nets (diameter: 0.5 m; mesh size: 4 mm ...
topographicslope, etc ; rain; rivers; surface drainage; water; watersheds; Carpathian region; Poland; Show all 8 Subjects
Abstract:
... In this study, the river system and the surface drainage system (SDS) operating during heavy rainfall in two Carpathian catchments located in foothills and medium-high mountain areas were compared. The results revealed that regardless of the differences in the river systems and physiographical parameters of the catchments, the SDS operating during heavy rainfall becomes similar. This similarity is ...
topographicslope, etc ; catenas; gully erosion; rain; rain intensity; sediment transport; sediments; Show all 7 Subjects
Abstract:
... Ephemeral gully (EG) is an important linear erosion feature, often occurring at mid-slope position, that can be greatly influenced by upslope inflow and its sediment transport capacity. How sediment concentration in upslope inflow influences downslope EG erosion is still unclear. Thus, field monitoring on a natural hillslope and indoor simulations on a dual-box system were conducted to better unde ...
topographicslope, etc ; convection; landscapes; latent heat; research; watersheds; wind; Yangtze River; Show all 8 Subjects
Abstract:
... The multi-scale convection activities are highly prone to induce the local severe rainstorms within Yangtze River Basin (YRB), and the orographic effect of the windward slope located within the Second-Step Terrain Region (SSTR) is widely confirmed to have significant roles in strengthening the multi-scale Eastward-Moving Southwest Vortex (EMSV) systems that belongs to a typical type of the convect ...