Výsledky vyhledávání - "Thomas Armah"

Vs30 mapping at selected sites within the Greater Accra Metropolitan Area

Autor: Grace Nortey, Paulina Amponsah, Thomas Armah

Publikováno v: Journal of African Earth Sciences. 142:158-169

A large part of Accra is underlain by a complex distribution of shallow soft soils. Within seismically active zones, these soils hold the most potential to significantly amplify seismic waves and cause severe damage, especially to structures sited on

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4cc84b03e25c79787143ec0a8e6221f1
https://doi.org/10.1016/j.jafrearsci.2018.02.020

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Application of geochemical and stable isotopic tracers to investigate groundwater salinity in the Ochi-Narkwa Basin, Ghana

Autor: Laurence Gourcy, Samuel Y. Ganyaglo, Tomas Vitvar, Thomas Armah, Tetteh T. Akiti, Isaac A. Otoo, Mari Ito, Shiloh Osae

Publikováno v: Hydrological Sciences Journal
Hydrological Sciences Journal, Taylor & Francis, 2017, 62 (8), pp.1301-1316. ⟨10.1080/02626667.2017.1322207⟩

Rainwater, groundwater and soil-water samples were analysed to assess groundwater geochemistry and the origin of salinity in the Ochi-Narkwa basin of the Central Region of Ghana. The samples were measured for major ions and stable isotopes (δ18O, δ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4eb9ee4fc55b2a9f5d4e5ccbe92ac6fa
https://doi.org/10.1080/02626667.2017.1322207

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Groundwater residence time in basement aquifers of the Ochi-Narkwa Basin in the Central Region of Ghana

Autor: Tetteh T. Akiti, Isaac A. Otoo, Tomas Vitvar, Mari Ito, Samuel Y. Ganyaglo, Shiloh Osae, Laurence Gourcy, Thomas Armah

Publikováno v: Journal of African Earth Sciences
Journal of African Earth Sciences, Elsevier, 2017, 134, pp.590-599. ⟨10.1016/j.jafrearsci.2017.07.028⟩

International audience; Groundwaters from basement aquifers in the Ochi-Narkwa basin of the Central Region together with rain and surface waters have been analysed for stable isotopes (delta O-18, delta H-2 and delta C-13) and radioisotopes (H-3 and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::023584bedca1d30e34bc8e80f6d8da2b
https://hal-brgm.archives-ouvertes.fr/hal-01849374

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Environmental Implications of the Discharge of Municipal Landfill Leachate into the Densu River and Surrounding Ramsar Wetland in the Accra Metropolis, Ghana

Autor: Jacob Tigme, Frank K. Nyame, Jacob M. Kutu, Thomas Armah

Publikováno v: Journal of Water Resource and Protection. :622-633

Investigations were conducted over a six-month period on leachate which continuously egresses from a “natural attenuation” landfill site into a fragile ecosystem in the Accra Metropolis, Ghana. Most physico-chemical, oxygen demand parameters and

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https://doi.org/10.4236/jwarp.2012.48072

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Application of Multivariate Analysis for Identification of Pollution Sources in the Densu Delta Wetland in the Vicinity of a Landfill Site in Ghana

Autor: S. Osae, Thomas Armah, Nash Owusu Bentil, Juliet Osei, Frank K. Nyame, J. R. Fianko, Dickson Adomako, Samuel B. Dampare

Publikováno v: Journal of Water Resource and Protection. :1020-1029

Surface water samples collected from various sites in the Densu delta wetland, Ghana, were analyzed for pH, temperature, TDS, EC, turbidity, TSS, alkalinity, HCO3-, BOD, COD, Na, K, Mg, Ca, Cl, SO42-, PO4-P, NO3-N, Cr, Pb, Cd, Cu, Co and Fe using tit

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https://doi.org/10.4236/jwarp.2010.212122

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Comment on 'Determining subsurface fracture characteristics from azimuthal resistivity surveys: A case study at Nsawam, Ghana' ()

Autor: Thomas Armah, Yakubu Iddirisu

Publikováno v: GEOPHYSICS. 74:X1-X1

We draw the reader9s attention to a statement made in the abstract and introduction that this study “is the first of its kind in Ghana” (Boadu et al., 2005). The authors did good work in their case study, but we wish to state that this survey is

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https://doi.org/10.1190/1.3106183

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Geophysical borehole logging for control of driller’s records: hydrogeological case study from Voltaian sedimentary rocks in northern Ghana

Autor: Bruce Banoeng-Yakubo, Edmund Okoe Amartey, Thomas Armah, W. A. Agyekum, Kurt Klitten

Publikováno v: Applied Water Science. 3(2):491-500

The low borehole yielding potential and the high drilling failure rate of the Voltaian sedimentary rocks of Northern Ghana have been of concern to many local hydrogeologists and international donors. Consequently, several donor-supported projects hav

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