Quantification of the surface water offer is crucial for its management. In Peru, low spatial density hydrometric stations makes this task challenging. This work aims to evaluate hydrological performance a monthly balance model in Peru using precipitation and evapotranspiration data from high-resolution meteorological PISCO dataset, which has been developed by National Service Meteorology Hydro...

Measurement uncertainty is a key hindrance to the quanti_cation of water ~uxes at all scales of investigation[ Predictions of soil!water ~ux rely on accurate or representative measurements of hydraulic gradients and _eld! state hydraulic conductivity[ We quanti_ed the potential magnitude of errors associated with the parameters and variables used directly and indirectly within the DarcyÐBucking...

r a 200 .007 : +1 302 del.edu Summary The contributions of hillslope and riparian sources of runoff to streamflow were determined for four catchments (1.6–696 ha) in the Point Peter Brook watershed, a glaciated, forested, watershed in Western New York, USA. Investigations were performed for 10 storm events of varying size, intensity, and antecedent moisture conditions. Hydrometric, geochemical,...

Introduction Precipitation is one of the major factors in the water balance of a catchment and as such the water cycle is most sensitive to changes in rainfall (Petheram et al. 2002). In sub-humid, semi-arid and arid regions, evapotranspiration is the second largest component of the water balance, and is affected not only by the availability of water but also by any change in other aspects of c...

Runoff sources and dominant flowpaths are still poorly understood in most catchments; consequently, most hydrograph separations are essentially ‘black box’ models where only external information is used. The well-instrumented 490 m2 Hydrohill artificial grassland catchment located near Nanjing (China) was used to examine internal catchment processes. Since groundwater levels never reach the soi...

Trends in river flow at national scale Iran remain largely unclear, despite good coverage of multiple monitoring stations. To address this gap, study explores the changes Iranian rivers’ discharge using regression and analysis variance methods to historically rich data measured hydrometric Our assessment is performed for 139 selected stations located data-rich basins that cover around 97% count...

In this study, we identified and characterized the hydrographic attributes related to the success of recruitment of migratory fishes in the Upper Paraná River floodplain. To achieve our objectives, we analyzed inter-annual variations in the abundance of young-of-the-year (YOY; index of recruitment) of six migratory species and their relations with hydrographic attributes. Recruitment was relate...

Managing stage-discharge relations at hydrometric stations affected by seasonal aquatic vegetation is challenging. Their ratings vary continuously in time so that establishing the streamflow series difficult. To best of our knowledge, no rating curve model exists to deal with a vegetated channel control, only manual adjustment methods. address this issue, temporal accounting for transient chang...

Abstract Flood quantile estimation at sites with little or no data is important for the adequate planning and management of water resources. Regional Hydrological Frequency Analysis (RFA) deals hydrological variables ungauged sites. Random Forest (RF) an ensemble learning technique which uses multiple Classification Regression Trees (CART) classification, regression, other tasks. The RF gaining...

ABSTRACT Fine sediment stored in the gravel bed is an important component of river systems. Current field protocols usually allow evaluation silt–clay fraction fine stocks only and neglect sand fraction. This study proposes a new protocol to quantify stocks, including inside matrix. were sampled within patches 0.30 m × on dry surface, separating surface layer subsurface layer. The grain‐size di...