Results 11 to 20 of about 1,222,186 (333)

Seasonal surface drainage of sloping farmland : a review of its hydrogeomorphic impacts [PDF]

open access: yes, 2015
The combination of runoff-generating areas (saturated soils) and overland flow concentration in features such as drainage ditches makes sloping farmland vulnerable to soil erosion.
Alt   +67 more
core   +2 more sources

BOD5 dynamics in three vertical layers in free-water surface wetlands

open access: yesEgyptian Journal of Aquatic Research, 2022
This paper introduces a first-order variable residence time (VART) model, the so-called BOD-VART model, to estimate the biochemical oxygen demand (BOD) in built wetlands with a free-water surface.
Alaa Farouk Aboukila, Ahmed Elhawary
doaj   +1 more source

Influence of drainage status on soil and water chemistry, litter decomposition and soil respiration in central Amazonian forests on sandy soils [PDF]

open access: yes, 2011
Central Amazonian rainforest landscape supports a mosaic of tall terra firme rainforest and ecotone campinarana, riparian and campina forests, reflecting topography-induced variations in soil, nutrient and drainage conditions.
Berton Zanchi, F.   +4 more
core   +2 more sources

Foamed emulsion drainage: flow and trapping of drops [PDF]

open access: yes, 2017
Foamed emulsions are ubiquitous in our daily life but the ageing of such systems is still poorly understood. In this study we investigate foam drainage and measure the evolution of the gas, liquid and oil volume fractions inside the foam.
Langevin, Dominique   +3 more
core   +2 more sources

Tracer Measurements in Growing Sea Ice Support Convective Gravity Drainage Parameterizations [PDF]

open access: yes, 2020
Gravity drainage is the dominant process redistributing solutes in growing sea ice. Modeling gravity drainage is therefore necessary to predict physical and biogeochemical variables in sea ice.
Bakker, D. C. E.   +6 more
core   +3 more sources

Influence of subglacial drainage system evolution on glacier surface motion: Haut Glacier d'Arolla, Switzerland [PDF]

open access: yes, 2002
The relationship between the evolution of subglacial drainage system morphology and spatial patterns of glacier surface velocity was investigated using dye tracing experiments and ground surveying throughout the 1995 melt season at Haut Glacier d'Arolla,
Balise   +29 more
core   +1 more source

Assessment of Climate Change Impacts on Agriculture of the Hashtgerd Plain with Emphasis of AR5 Models Uncertainty [PDF]

open access: yesعلوم و مهندسی آبیاری, 2018
Nowadays, in water resources management, climate change is one of the main challenges. Changes in the water cycle are one of the most important of ground responses to warming it (IPCC 2014).
Aida Mehrazar   +3 more
doaj   +1 more source

Stabilization of Bentonite Nanoparticles Modified by Cationic Surfactant on Pumice Aggregates for the Removal of Nitrate from Aqueous Solution [PDF]

open access: yesآب و فاضلاب, 2020
Nitrate contamination in water resources has become an important issue because of the environmental issue and potential risk to human health. The aim of this study is investigating the stabilization of modified bentonite nanoparticles by cationic ...
Zeinab Mikhak Beiranvand   +2 more
doaj   +1 more source

Comparison of Some Split-window Algorithms to Estimate Land Surface Temperature from AVHRR Data in Southeastern Tehran, [PDF]

open access: yesDesert, 2009
Land surface temperature (LST) is a significant parameter for many applications. Many studies have proposedvarious algorithms, such as the split-window method, for retrieving surface temperatures from two spectrallyadjacent thermal infrared bands of ...
S.M. Behbahani   +2 more
doaj   +1 more source

Risk analysis of meteorological, agricultural, and hydrological drought events and study of drought propagation features: a case study in the upper Tapti River sub-basin, Central India

open access: yesJournal of Water and Climate Change, 2023
As a natural hazard, drought is a complex multivariate phenomenon that requires more comprehensive analysis. In this study, we studied meteorological, agricultural, and hydrological drought events with precipitation, soil moisture, and stream flow data ...
P. Kanthavel, C. K. Saxena, R. K. Singh
doaj   +1 more source

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