Physics and Chemistry of the Earth, Parts ABC This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

Comparison of solute/heat transport in fractured formations using discrete fracture and equivalent porous media modeling at the reservoir scale
In this study, fluid flow and solute/heat transport phenomena were investigated using the equivalent porous media approach and compared to discrete fracture modeling. In the equivalent porous media approach, the fractures were replaced with a porous medium. Its effective porosity and permeability were adjusted to get the simulation results similar to discrete fracture modeling results. In addition, the solid deformation, in equivalent porous media approach, was coupled with heat transfer, while it was de-coupled with fluid flow to increase the simulations’ efficiency. The equivalent porous media approach was applied to t...
Source: Physics and Chemistry of the Earth, Parts ABC - August 8, 2019 Category: Science Source Type: research

Impact of substrate type, depth and retention time on organic matter removal in vertical subsurface flow constructed wetland mesocosms for treating slaughterhouse wastewater
Publication date: Available online 6 August 2019Source: Physics and Chemistry of the Earth, Parts A/B/CAuthor(s): C. Mburu, J. Kipkemboi, R. KimwagaAbstractPopulation growth and the associated demand for meat products is creating an increasing concern on water over slaughterhouse associated pollution of aquatic environments in Sub-Saharan Africa. In Kenya, increasing volumes of strong slaughterhouse wastewater being discharged either untreated or partially treated has necessitated ardent research into sustainable technologies. Vertical sub-surface flow constructed wetlands offer a promising solution. A study investigating ...
Source: Physics and Chemistry of the Earth, Parts ABC - August 7, 2019 Category: Science Source Type: research

The removal and adsorption mechanisms of free amino acid l-tryptophan from aqueous solution by biomass-based activated carbon by H3PO4 activation: regeneration study
The objective of this work is to examine the effectiveness of low cost material as adsorbent for the removal of free amino acid l-tryptophan from aqueous solutions in order to avoid the formation of undesirable disinfection by-products, trihalomethanes and iodinated trihalomethanes, during the water chlorination. The adsorbent was prepared from date pits and activated with H3PO4 (DPH). The textural properties of DPH were characterized by FT-IR spectroscopy, SEM analysis and N2 adsorption-desorption isotherms. DPH possesses a large specific surface area (1040 m2 g–1) and a high total pore volume (1.089 cm3 g–1). Batch a...
Source: Physics and Chemistry of the Earth, Parts ABC - August 1, 2019 Category: Science Source Type: research

Approaches to multi-scale analyses of mechanically and thermally-driven migration of fluid inclusions in salt rocks
Publication date: Available online 22 July 2019Source: Physics and Chemistry of the Earth, Parts A/B/CAuthor(s): Hua Shao, Yifeng Wang, Olaf Kolditz, Thomas Nagel, Torben BrüningAbstractFluid inclusions are found within mineral crystals or along grain boundaries in many sedimentary rocks, notably in evaporite formations, and can migrate along a thermal or hydro-mechanical gradient. Shale and salt rocks have been considered potential host rocks for radioactive waste disposal, due to their low permeability. Previously stagnant inclusions may become mobilised by a perturbation of the in situ state by a geotechnical installat...
Source: Physics and Chemistry of the Earth, Parts ABC - July 22, 2019 Category: Science Source Type: research

An assessment of baseline and downscaled projected climate variables in the Upper Manyame sub-catchment of Zimbabwe
Publication date: Available online 9 July 2019Source: Physics and Chemistry of the Earth, Parts A/B/CAuthor(s): Oliver Masimba, Webster Gumindoga, Alexander Mhizha, Donald Tendayi RwasokaAbstractThe study assessed historical trends in precipitation and temperature using Mann-Kendall trend and Wilcoxon signed rank tests in the Upper Manyame sub-catchment of Zimbabwe. The projected precipitation and temperature for the 2030s and 2060s were downscaled using the Statistical DownScaling Model with data from HadCM3 and CanESM2. Trend analysis results showed a declining statistically non-significant trend in precipitation and a s...
Source: Physics and Chemistry of the Earth, Parts ABC - July 10, 2019 Category: Science Source Type: research

Terrestrial heat flow evaluation from thermal response tests combined with temperature profiling
Publication date: Available online 7 July 2019Source: Physics and Chemistry of the Earth, Parts A/B/CAuthor(s): Maria Isabel Velez, Jasmin Raymond, Daniela Blessent, Mikael PhilippeABSTRACTThe terrestrial heat flux density, an essential information to evaluate the deep geothermal resource potential, is rarely defined over urban areas where energy needs are important. In an effort to fill this gap, the subsurface thermal conductivity estimated during two thermal response tests was coupled with undisturbed temperature profile measurements conducted in the same boreholes to infer terrestrial heat flow near the surface. The un...
Source: Physics and Chemistry of the Earth, Parts ABC - July 7, 2019 Category: Science Source Type: research

Mapping floods in the Middle Zambezi Basin using Earth observation and hydrological modeling techniques
Publication date: Available online 29 June 2019Source: Physics and Chemistry of the Earth, Parts A/B/CAuthor(s): T. Nharo, H. Makurira, W. GumindogaAbstractThe Lower Middle Zambezi catchment, on the Zimbabwean side, is vulnerable to floods almost every year. In this work, the causes and impacts of floods in the Mbire District of the Middle Zambezi Basin are investigated. An algorithm based on the binary logistic regression is used together with MODIS NDVI images to determine the spatial and temporal variation of flood inundation. The HEC-HMS model is used to simulate rainfall time series at daily time step. The quantified ...
Source: Physics and Chemistry of the Earth, Parts ABC - June 30, 2019 Category: Science Source Type: research

Editorial Board
Publication date: June 2019Source: Physics and Chemistry of the Earth, Parts A/B/C, Volume 111Author(s): (Source: Physics and Chemistry of the Earth, Parts ABC)
Source: Physics and Chemistry of the Earth, Parts ABC - June 18, 2019 Category: Science Source Type: research

Application of the Two-Fluid Model to Prediction of Sediment Transport in Turbulent Open Channel Flow
Publication date: Available online 14 June 2019Source: Physics and Chemistry of the Earth, Parts A/B/CAuthor(s): Mina Ahadi, Donald J. Bergstrom, Kerry Anne MazurekAbstractThe two-fluid model formulation was used to predict the fluid and sediment transport in an open channel flow for a dilute concentration. A low Reynolds number k–ε model was used to represent the turbulence in the fluid phase; it included the effect of the sediment particles on the turbulence field. The particle-wall interactions were implemented using the boundary condition of Johnson and Jackson (1987), which resulted in a finite value for the sedime...
Source: Physics and Chemistry of the Earth, Parts ABC - June 15, 2019 Category: Science Source Type: research

Editorial Board
Publication date: April 2019Source: Physics and Chemistry of the Earth, Parts A/B/C, Volume 110Author(s): (Source: Physics and Chemistry of the Earth, Parts ABC)
Source: Physics and Chemistry of the Earth, Parts ABC - May 25, 2019 Category: Science Source Type: research

Resistance Prediction of Two Fishing Vessel Models Based on RANS Solutions
Publication date: Available online 22 May 2019Source: Physics and Chemistry of the Earth, Parts A/B/CAuthor(s): Md Ashim Ali, Heather Peng, Wei QiuAbstractThis paper presents the numerical prediction of calm water resistance of a fishing vessel using the open-source computational fluid dynamics (CFD) package, OpenFOAM. Numerical simulations were carried out for two different vessel models, one with an optimized bulbous bow and the other without a bulbous bow, by solving the Reynolds-Averaged Navier-Stokes (RANS) equations. The numerical solutions were validated against the experimental results. The wave profile along the s...
Source: Physics and Chemistry of the Earth, Parts ABC - May 23, 2019 Category: Science Source Type: research

Assessment of water quality in coastal estuaries under the impact of an industrial zone in Hai Phong, Vietnam
Publication date: Available online 3 April 2019Source: Physics and Chemistry of the Earth, Parts A/B/CAuthor(s): Quang Tri Doan, Thi Mai Linh Nguyen, Thi Thanh Tuyet Quach, Anh Phuong Tran, Cao Don NguyenAbstractThe purpose of this study was to apply numerical modeling to assess the water quality in Nam Trieu and Lach Tray coastal estuaries. The wind reanalysis data from the Weather Research and Forecasting (WRF) Model were used to simulate waves and hydrodynamic regimes with a definition of 14 km within the longitude range from 105oE to 120oE and latitude range from 5° to 22° in the study area. The calibration and val...
Source: Physics and Chemistry of the Earth, Parts ABC - May 19, 2019 Category: Science Source Type: research

Integrating LIDAR data and four-dimensional flux method to analyzing the transmission of PM2.5 in Shenzhen
Publication date: Available online 3 April 2019Source: Physics and Chemistry of the Earth, Parts A/B/CAuthor(s): Chanfang Liu, Long He, Dongqin Pi, Jiangwei Zhao, Liheng Lin, Pengfei He, Jiahe Wang, Jianbin Wu, Huansheng Chen, Pingzhong Yan, Weimin Wang, Shuxian Lin, Yong YouAbstractWith the increase economic growth and high energy consumption in Shenzhen, pollutant emission increases gradually which leads to air pollution and affect public health. In order to undertake effective measures for preventing and controlling air pollution, it is essential to understand the transmission characteristics of PM2.5 and identify the c...
Source: Physics and Chemistry of the Earth, Parts ABC - May 17, 2019 Category: Science Source Type: research

Assessing the Performance of Trichardt Wastewater Treatment Plant (South Africa)
The objective of this study was to investigate the performance of the Trichardt Wastewater Treatment Plant (South Africa) and come up with recommendations for the improvement of the wastewater treatment plant. The performance of the plant was evaluated for its compliance with the standard set by the DWS. The water quality parameters tested include: Ammonia (NH3), Nitrate (NO3-), Phosphate (PO4-3), Chemical Oxygen Demands (COD), Turbidity (T) and Total Suspended Solids (TSS). The result indicates that the concentration of most of the considered parameters (TSS, NH4, COD, PO4-3) are above the permissible limit set by DWS thr...
Source: Physics and Chemistry of the Earth, Parts ABC - May 16, 2019 Category: Science Source Type: research

Estimating vegetation productivity of urban regions using sun-induced chlorophyll fluorescence data derived from the OCO-2 satellite
In conclusion, the method of using OCO-2 SIF to estimate GPP established in this study could provide support for the study of vegetation productivity in urban regions around the world. (Source: Physics and Chemistry of the Earth, Parts ABC)
Source: Physics and Chemistry of the Earth, Parts ABC - May 16, 2019 Category: Science Source Type: research