Hydrology Research 

About: Hydrology Research is an academic journal published by UWA Publishing. The journal publishes majorly in the area(s): Surface runoff & Snow. It has an ISSN identifier of 0029-1277. It is also open access. Over the lifetime, 1980 publications have been published receiving 38364 citations.

A Sediment Transport Model for Straight Alluvial Channels

Abstract: The paper presents a simple mathematical model for sediment transport in straight alluvial channels. The model, which is based on physical ideas related to those introduced by Bagnold (1954), was originally developed in two steps, the first describing the bed load transport (Engelund 1975) and the second accounting for the suspended load (Fredsoe and Engelund 1976). The model is assumed to have two advantages as compared with empirical models, first it is based on a description of physical processes, secondly it gives some information about the quantity and size of the sand particles in suspension and the bed particles.

Operational readiness of microwave remote sensing of soil moisture for hydrologic applications

Abstract: Microwave remote sensing of soil moisture has been an active area of research since the 1970s but has yet found little use in operational applications Given recent advances in retrieval algorithms and the approval of a dedicated soil moisture satellite, it is time to re-assess the potential of various satellite systems to provide soil moisture information for hydrologic applications in an operational fashion This paper reviews recent progress made with retrieving surface soil moisture from three types of microwave sensors - radiometers, Synthetic Aperture Radars (SARs), and scatterometers The discussion focuses on the operational readiness of the different techniques, considering requirements that are typical for hydrological applications It is concluded that operational coarse-resolution (25-50 km) soil moisture products can be expected within the next few years from radiometer and scatterometer systems, while scientific and technological breakthroughs are still needed for operational soil moisture retrieval at finer scales (< 1 km) from SAR Also, further research on data assimilation methods is needed to make best use of the coarse-resolution surface soil moisture data provided by radiometer and scatterometer systems in a hydrologic context and to fully assess the value of these data for hydrological predictions

Development and testing of the HYPE (Hydrological Predictions for the Environment) water quality model for different spatial scales

Abstract: The HYPE model is a hydrological model for small-scale and large-scale assessments of water resources and water quality, developed at the Swedish Meteorological and Hydrological Institute during 2005-2007. In the model, the landscape is divided into classes according to soil type, land use and altitude. In agricultural lands the soil is divided into three layers, each with individual computations of soil wetness and nutrient processes. The model simulates water flow and transport and turnover of nitrogen and phosphorus. Nutrients follow the same pathways as water in the model: surface runoff, macropore flow, tile drainage and outflow from individual soil layers. Rivers and lakes are described separately with routines for turnover of nutrients in each environment. Model parameters are global, or coupled to soil type or land use. The model was evaluated both by local calibrations to internal variables from different test basins and to data on discharge and nutrients from a large number of small basins. In addition, the estimated parameters were transferred to two larger basins in southern Sweden: River Ronnea and River Vindan. The resulting simulations were generally in good agreement with observations.

Development of a conceptual deterministic rainfall-runoff model

Abstract: This progress report outlines the main principles for the development of a simple conceptual rainfall-runoff model at the Swedish Meteorological and Hydrological Institute. The HBV-2 Model is based on lumped-parameter approximations to the physical laws governing infiltration, percolation and runoff formation. The time interval is one day. The model structure includes a soil moisture storage, an upper zone storage and a lower zone storage. A procedure for evaluating the parameter values is described. Examples of applications to several test catchments in various hydrologic settings are included.

A model for estimating actual evapotranspiration from potential evapotranspiration

Abstract: A model for calculating the daily actual evapotranspiration based on the potential one is presented. The potential evapotranspiration is reduced according to vegetation density, water content in the root zone, and the rainfall distribution. The model is tested by comparing measured (EA m ) and calculated (EA c ) evapotranspirations from barley, fodder sugar beets, and grass over a four year period. The measured and calculated values agree within 10 %. The model also yields information on soil water content and runoff from the root zone.