Results 11 to 20 of about 502 (174)

A Comparative Evaluation of Using Rain Gauge and NEXRAD Radar-Estimated Rainfall Data for Simulating Streamflow

open access: yesHydrology, 2022
Ascertaining the spatiotemporal accuracy of precipitation is a challenge for hydrologists and planners for flood protection measures. The objective of this study was to compare streamflow simulations using rain gauge and radar data from a watershed in ...
Syed Imran Ahmed   +5 more
doaj   +1 more source

An Assessment of Infiltration Models in the Surface Soil of Geological Formations in Aleshtar Watershed, the Province of Lorestan [PDF]

open access: yesپژوهش‌های آبخیزداری, 2021
Soil infiltration is one of the key processes in the design of irrigation systems, water resources management, soil conservation, and erosion control in watershed management.
Shokofeh Hasanvand   +3 more
doaj   +1 more source

Coupling Green-Ampt and Saint-Venant Equations for Estimating of Transmission Losses during Flood Routing in Rivers [PDF]

open access: yesعلوم و مهندسی آبیاری, 2016
Volume of flooding flow volume in ephemeral streams decreases due to evaporation as well as the channel wall and bed penetration. This process is known as transmission losses.
Sabah Mohammadi   +2 more
doaj   +1 more source

Legacies of consecutive summer droughts on soil-borne plant parasitic protists (Oomycota: Stramenopila and Phytomyxea: Rhizaria) and protistan consumers (Cercozoa: Rhizaria) along an experimental plant diversity gradient. [PDF]

open access: yesNew Phytol
Summary Increasing frequencies of severe summer droughts and plant diversity loss disrupt ecosystem functioning and stability of European grasslands. Understanding how these factors interact with pathogens is crucial. We investigated the effects of plant diversity and repeated summer drought on soil‐borne parasites within a grassland biodiversity ...
Solbach MD   +8 more
europepmc   +2 more sources

Research on Influence of Soil Moisture Content of Farmland on Infiltration Model Parameters [PDF]

open access: yesE3S Web of Conferences, 2020
In order to study the influence of the initial moisture content on the parameters of the infiltration model using an indoor soil column test method, and the relationship between the initial moisture content and each model parameter was analyzed by using ...
Zheng Zhiwei, Gao Zhuozhuo
doaj   +1 more source

Hydrological modeling using the Soil and Water Assessment Tool in urban and peri-urban environments: the case of Kifisos experimental subbasin (Athens, Greece) [PDF]

open access: yesHydrology and Earth System Sciences, 2023
SWAT (Soil and Water Assessment Tool) is a continuous-time, semi-distributed, river basin model widely used to evaluate the effects of alternative management decisions on water resources.
E. Koltsida, N. Mamassis, A. Kallioras
doaj   +1 more source

Experimental study on capillary water transport model based on AHFO technology

open access: yesYantu gongcheng xuebao, 2019
In order to verify the accuracy of commonly used capillary water transport models, several laboratory model tests are carried out based on the active heated fiber optic method (AHFO). During these tests, the soil moisture profiles determined by capillary
HAO Rui 1, SHI Bin 1, CAO Ding-feng 1, WEI Guang-qing 2, ZHANG Yan 1, MEI Shi-jia 1
doaj   +1 more source

Improved calibration of the Green–Ampt infiltration module in the EROSION-2D/3D model using a rainfall-runoff experiment database [PDF]

open access: yesSOIL, 2021
Soil infiltration is one of the key factors that has an influence on soil erosion caused by rainfall. Therefore, a well-represented infiltration process is a necessary precondition for successful soil erosion modelling.
H. Beitlerová   +7 more
doaj   +1 more source

A Dynamic Multidomain Green‐Ampt Infiltration Model [PDF]

open access: yesWater Resources Research, 2018
AbstractShrink‐swell soils possess dynamic hydraulic properties, which may limit the applicability of traditional models for simulating infiltration and overland flow. This study incorporates Green‐Ampt infiltration concepts into a multidomain porosity framework to account for variations in pore size distributions and saturated hydraulic conductivities
openaire   +1 more source

Modification of Green-Ampt model based on the stratification hypothesis

open access: yesShui kexue jinzhan, 2012
A modification of Green-Ampt model is proposed based on the stratification hypothesis,which dynamically divided the soil column is into saturated layer,transient layer and dry layer.The model uses the concept of an equivalent hydraulic conductivity in ...
PENG Zhen-yang   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy