River flow alterations, caused by climate variability/change and intense anthropogenic uses (e.g., regulation dams) are considered among the main global challenges of which hydrologists should be dealing with. For purpose this study, environmental potential hydrological alterations made for extended Drin river basin, with limited historical information available. To overcome limitation assessme...

Permafrost extends 40% of the Qinghai-Tibet Plateau (QTP), a region which contains headwaters numerous major rivers in Asia. As an aquiclude, permafrost substantially controls surface runoff and its hydraulic connection with groundwater. The freeze–thaw cycle active layer significantly impacts soil water movement direction, velocity, storage capacity, conductivity. Under accelerating warming on...

This review paper recites fundamentals of historical runoff estimation methodologies that were developed for ungauged drainage basins. Additionally, new approaches are also provided as extensions modern ones. Early calculations suggested towards the end 18th century, when there was no record availability rainfall or runoff. Some these have not been cited in scientific literature, but they frequ...

Abstract Hydrological models have proliferated in the past several decades prompting debates on virtues and shortcomings of various modelling approaches. Rather than critiquing individual or approaches, objective here is to address critical issues scaling hydrological process representation types with suggestions for improving these attributes a parsimonious manner that captures explains their ...

Abstract Warnings about impending hazards help to minimize the impacts and reduce risk of hazard through encouraging an appropriate timely behavioral response. Many hydrometeorological agencies are moving toward impact-based forecast warning (IBFW) systems, as encouraged by World Meteorological Organization. Yet little research has been conducted on such systems from perspectives who or would b...

among different models for runoff estimation in watershed management, the soil conservation services-curve number (scs-cn) method along with its modifications have been widely applied to ungauged watersheds because of quickly and more accurate estimation of surface runoff. this approach has been widely accepted by hydrologists, water resources planners, foresters, and engineers, as well. theref...

The September 1973 flood in the Mahi Basin was one of most catastrophic and widespread 20th century. However, hydro-meteorological characteristics were not studied. Therefore, an attempt has been made to analyze meteorological hydrological processes that led flood. Accordingly, daily rainfall data, river discharge, cross-section data obtained for analysis. associated with very heavy resulting f...

Abstract. The understanding of neutron transport by Monte Carlo simulations led to major advancements towards precise interpretation measurements. URANOS (Ultra Rapid Neutron-Only Simulation) is a free software package which has been developed in the last few years cooperation with particle physics and environmental sciences, specifically for purposes cosmic-ray sensing (CRNS). Its versatile us...

Streamflow is one of the key variables in hydrological cycle. Simulation and forecasting streamflow are challenging tasks for hydrologists, especially sparsely gauged areas. Coarse spatial resolution remote sensing soil moisture products (equal to or larger than 9 km) often assimilated into models improve simulation large catchments. This study uses Ensemble Kalman Filter (EnKF) technique assim...