Hydrology Articles

372 Results found
  • Category: Soil & Groundwater ×

  • Subcategory: Hydrology ×

Assessment of water quality in Little Vermillion River watershed using principal component and nearest neighbor analyses

by IWA Publishing  (Apr. 8, 2015)

Because of increased use of fertilizers to feed the increasing global population, the nutrient loads in surface and subsurface water have increased substantially in the last few decades. Many studies have been conducted to investigate the factors affecting nitrate load in surface and subsurface flow. The objective of this study is to investigate ...

Integrated actions in the management of critical hydrologic events

by IWA Publishing  (Mar. 27, 2015)

Owing to the increase in urban populations, there has also been an increased incidence of critical events, especially those related to floods and landslides. Since the implementation of the National Civil Defense System in Brazil, a focus on disaster management is no longer the answer when assisting those affected; instead, the answer has become ...

Depression storage capacities of different ideal pavements as quantified by a terrestrial laser scanning-based method

by IWA Publishing  (Mar. 27, 2015)

Rainfall partition on paved urban surfaces is governed to a great extent by depression storage. This is especially the case for small rainfall events, which are often ignored in urban hydrology. If storage, infiltration and evaporation (important for urban heat island mitigation), rather than storm water run-off, are of interest, high-resolution ...

Braided rivers: structure, types and hydrological effects

by IWA Publishing  (Mar. 19, 2015)

Braided rivers have been intensively analyzed mostly by geomorphologists. In the present study the approach to recognize braided channel types and effects with the special emphasis on flow partitioning has been applied. It is assumed that each braided channel represents the reach which is initiated with dividing of the single channel and ...

Ditch network extraction and hydrogeomorphological characterization using LiDAR-derived DTM in wetlands

by IWA Publishing  (Mar. 19, 2015)

While much emphasis has been placed on the importance of hydrology as a driving force for wetlands, few small stream drainage networks have been mapped. Light Detection and Ranging (LiDAR) data can provide very high-precision topographic maps over large areas, and have been used to extract drainage networks in forested areas, vineyards, and high ...

Hysteresis effects of suspended sediment transport in relation to geomorphic conditions and dominant sediment sources in medium and large rivers of the Russian Arctic

by IWA Publishing  (Mar. 19, 2015)

Preliminary analysis of long-term hydrological data shows that sediment dynamics of Russian Arctic rivers is largely affected by hysteresis effects in relation of water discharge to suspended sediment concentration (SSC). The role of large-scale geomorphic and geocryological conditions in sediment transport is still relatively understudied. This ...

Implementing contour bank farming practices into the J2000 model to improve hydrological and erosion modelling in semi-arid Western Cape Province of South Africa

by IWA Publishing  (Mar. 19, 2015)

Contour bank farming is a well-known agricultural management technique in areas which are characterised by intensive and erosive rainfalls. Contour banks are designed to reduce the flow velocity of overland flow and to intercept water before it concentrates in rills, thereby reducing the risk of soil erosion and land degradation. By their ...

Editorial: Hydrogeomorphology – a long-term scientific interface

by IWA Publishing  (Mar. 19, 2015)

Hydrogeomorphology is reframed as an old inter-discipline, which is still highly relevant to both hydrology and geomorphology, renewed by new techniques and new questions in line with challenges of ungauged basins; anthropogenic changes in driving forces, landscape structures, and dynamic functions; translation of science into practice; and ...

Integrated water resources assessment and management in a small watershed – a geomorphic approach

by IWA Publishing  (Mar. 19, 2015)

Depleting water resources and increasing human demands on the available fresh water resources suggest the need and scope for integrated water resources assessment and management. Narava basin, a small watershed spread over 105 km2 with a khondalitic suite of rocks and gneisses of Archaean age in the north coastal region of Andhra Pradesh, India ...

Detection of regional climate change effects on alpine hydrology by daily resolution trend analysis in Tyrol, Austria

by IWA Publishing  (Mar. 17, 2015)

Owing to average temperature increases of at least twice the global mean, climate change is expected to have strong impacts on local hydrology and climatology in the Alps. Nevertheless, trend analyses of hydro-climatic station data rarely reveal clear patterns concerning climate change signals except in temperature observations. However, trend ...

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