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Dr. John Stephen Kayode
Universiti Sains Malaysia

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Research Keywords & Expertise

0 Geo-environmental Engineering
0 Environemntal Assessment
0 Geo-hazards
0 Exploration Geophysics
0 Climate Change and Environmental Management

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Short Biography

I'm a Professional Counselor and Mentor with PhD in Exploration Geophysics. A researcher, teacher; writer, and public speaker. Currently lives in Malaysia. My interests range from technological Innovation in geosciences and environmental research and educational development. I have over 17 years of lecturing in the university both at undergraduate and postgraduate levels. I am also interested in writing, reading, and sporting.

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Micro article
Published: 14 December 2020 in MethodsX
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A novel methodological approach was developed to quantified the volume of industrial waste desposal (IWD) site, combined with municipal waste materials (MWM), through the integration of a non-invasive, fast, and less expenssive RES2-D Electrical Resistivity Technique (ERT), using Wenner-Schlumberger electrode array geophysical method with Oasis Montaj software. Underground water bearing structures, and the eco-system are being contaminated through seepage of the plumes emanating from the mixtures of the industrial waste materials (IWM), made of moist cemented soil with municipal solid wastes (MSW) dumped at the site. The distribution of the contiminant hazardous plumes emanating from the waste materials' mixtures within the subsurface structural lithological layers was clearly map and delineated within the near-surface structures, using the triplicate technique to collect samples of the soil with the waste mixtures, and the water analysis for the presence of dissolved ions. The deployed method helped to monitor the seepage of the contaminant leachate plumes to the groundwater aquifer units via the ground surface, through the subsurface stratum lithological layers, and hence, estimation of the waste materials' volume was possibly approximated to be 312,000 m3. In summary, the novel method adopted are as presented below:

ACS Style

Mohd Hariri Arifin; John Stephen Kayode; Muhammad Khairel Izzuan Ismail; Abdul Manan Abdullah; Asha Embrandiri; Nor Shahidah Mohd Nazer; Azrin Azmi. A novel method for the quantification of industrial and municipal waste materials for environmental hazard assessment. MethodsX 2020, 8, 101182 .

AMA Style

Mohd Hariri Arifin, John Stephen Kayode, Muhammad Khairel Izzuan Ismail, Abdul Manan Abdullah, Asha Embrandiri, Nor Shahidah Mohd Nazer, Azrin Azmi. A novel method for the quantification of industrial and municipal waste materials for environmental hazard assessment. MethodsX. 2020; 8 ():101182.

Chicago/Turabian Style

Mohd Hariri Arifin; John Stephen Kayode; Muhammad Khairel Izzuan Ismail; Abdul Manan Abdullah; Asha Embrandiri; Nor Shahidah Mohd Nazer; Azrin Azmi. 2020. "A novel method for the quantification of industrial and municipal waste materials for environmental hazard assessment." MethodsX 8, no. : 101182.

Data article
Published: 28 November 2020 in Data in Brief
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Industrial, and municipal wastes are part of the main sources of environmental hazards as well as groundwater and surface water pollutions. If not well composed, treated, and safely disposed, it could permeate through the subsurface lithologies by reaching down to the underground water aquifers, particularly in zones of unprotected aquifer units. Pollutants, most especially the landfills leachates that encompassed organic contaminants, ammonia, nitrates, total nitrogen, suspended solids, heavy metals and soluble inorganic salts, i.e., soluble nitrogen, sulphur compound, sulphate and chlorides, could posed undesirable environmental impacts due to inappropriate disposals that may give rise to gaseous fumes and leachate formations. An electrical resistivity geophysical technique utilizing the RES2D no-invasive, cost-effective and rapid method of data collection was integrated with the 3D Oasis Montaj software to approximate the volume of the generated rectangular prism model of the contaminants delineated from mixtures of the industrial, and municipal wastes plumes to be 312,000 m 3.

ACS Style

Mohd Hariri Arifin; John Stephen Kayode; Khairel Izzuan Ismail; Manan Abdullah; Asha Embrandiri; Shahidah Mohd Nazer; Azrin Azmi. Data for the industrial and municipal environmental wastes hazard contaminants assessment with integration of RES2D techniques and Oasis Montaj software. Data in Brief 2020, 33, 106595 .

AMA Style

Mohd Hariri Arifin, John Stephen Kayode, Khairel Izzuan Ismail, Manan Abdullah, Asha Embrandiri, Shahidah Mohd Nazer, Azrin Azmi. Data for the industrial and municipal environmental wastes hazard contaminants assessment with integration of RES2D techniques and Oasis Montaj software. Data in Brief. 2020; 33 ():106595.

Chicago/Turabian Style

Mohd Hariri Arifin; John Stephen Kayode; Khairel Izzuan Ismail; Manan Abdullah; Asha Embrandiri; Shahidah Mohd Nazer; Azrin Azmi. 2020. "Data for the industrial and municipal environmental wastes hazard contaminants assessment with integration of RES2D techniques and Oasis Montaj software." Data in Brief 33, no. : 106595.

Communication
Published: 12 November 2020 in Sustainability
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We analyzed real-time measurements of atmospheric carbon dioxide (CO2), with total electricity production and nationwide restrictions phases in China, the United States of America, Europe, and India due to the novel coronavirus COVID-19 pandemic and its effects on atmospheric CO2. A decline of 3.7% in the global energy demand at about 150 million tonnes of oil equivalent (Mtoe) in the first quarter (Q1) of 2020 was recorded compared to Q1 2019 due to the cutback on international economic activities. Our results showed that: (1) electricity production for the same period in 2018, 2019, and 2020 shrunk at an offset of 9.20%, which resulted in a modest reduction (−1.79%) of atmospheric CO2 to the 2017–2018 CO2 level; (2) a non-seasonal, abrupt, and brief atmospheric CO2 decrease by 0.85% in mid-February 2020 could be due to Phase 1 restrictions in China. The results indicate that electricity production reduction is significant to the short-term variability of atmospheric CO2. It also highlights China’s significant contribution to atmospheric CO2, which suggests that, without the national restriction of activities, CO2 concentration is set to exceed 2019 by 1.79%. Due to the lockdown, it quickly decreased and sustained for two months. The results underscore atmospheric CO2 reductions on the monthly time scale that can be achieved if electricity production from combustible sources was slashed. The result could be useful for cost-benefit analyses on the decrease in electricity production of combustible sources and the impact of this reduction on atmospheric CO2.

ACS Style

Yusri Yusup; Nur Ramli; John Kayode; Chee Yin; Sabiq Hisham; Hassim Mohamad Isa; Mardiana Ahmad. Atmospheric Carbon Dioxide and Electricity Production Due to Lockdown. Sustainability 2020, 12, 9397 .

AMA Style

Yusri Yusup, Nur Ramli, John Kayode, Chee Yin, Sabiq Hisham, Hassim Mohamad Isa, Mardiana Ahmad. Atmospheric Carbon Dioxide and Electricity Production Due to Lockdown. Sustainability. 2020; 12 (22):9397.

Chicago/Turabian Style

Yusri Yusup; Nur Ramli; John Kayode; Chee Yin; Sabiq Hisham; Hassim Mohamad Isa; Mardiana Ahmad. 2020. "Atmospheric Carbon Dioxide and Electricity Production Due to Lockdown." Sustainability 12, no. 22: 9397.

Journal article
Published: 02 November 2020 in Journal of Hazardous Materials
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Environmental hazards, industrial, and municipal wastes geochemical and geophysical assessments were carried out at an industrial waste disposal (IWD) site at Bukit Kepong, Kuala Lumpur, Malaysia. RES2-D geophysical method was applied, capable of identification and quantification of the industrial wastes; buried hazardous materials (BHM) and their effects on the subsurface stratum, from the moderately saturated zones, to fully saturated zones housing the aquifer units underneath the water table. Six RES2-D survey profiles were respectively acquired along E-W, and N-S directions. The perpendicular arrangement of the RES2-D survey lines, was tenaciously designed to make possible, the industrial waste materials (IWM)and municipal solid waste (MSW) quantification, with sufficient length of survey lines set at 200 m, and electrode spacing of 5 m, to cover as much details segments of the IWM and MSW as possible. The six RES2-D inversion results, helped in the subsurface stratum classification into three layers, namely; soft layers, which encompasses the waste materials, with varied resistivity values i.e., 0–100 Ω-m, at 10–15 m depths. The consolidated layers produced varied resistivity values i.e., 101–400 Ω-m, at 15–20 m depths. The bedrock has the highest resistivity values i.e., 401–2000 Ω-m, at depths > 20 m. The estimated volume of the waste materials was 312,000 m 3, using 3-D Oasis Montaj modeling via rectangular prism model generated from the inverted RES2-D. Results from the geochemical analysis helped in the validation of the site as a potential contaminated zone with severe health effects.

ACS Style

Mohd Hariri Arifin; John Stephen Kayode; Muhammad Khairel Izzuan Ismail; Abdul Manan Abdullah; Asha Embrandiri; Nor Shahidah Mohd Nazer; Azrin Azmi. Environmental hazard assessment of industrial and municipal waste materials with the applications of RES2-D method and 3-D Oasis Montaj modeling: A case study at Kepong, Kuala Lumpur, Peninsula Malaysia. Journal of Hazardous Materials 2020, 406, 124282 .

AMA Style

Mohd Hariri Arifin, John Stephen Kayode, Muhammad Khairel Izzuan Ismail, Abdul Manan Abdullah, Asha Embrandiri, Nor Shahidah Mohd Nazer, Azrin Azmi. Environmental hazard assessment of industrial and municipal waste materials with the applications of RES2-D method and 3-D Oasis Montaj modeling: A case study at Kepong, Kuala Lumpur, Peninsula Malaysia. Journal of Hazardous Materials. 2020; 406 ():124282.

Chicago/Turabian Style

Mohd Hariri Arifin; John Stephen Kayode; Muhammad Khairel Izzuan Ismail; Abdul Manan Abdullah; Asha Embrandiri; Nor Shahidah Mohd Nazer; Azrin Azmi. 2020. "Environmental hazard assessment of industrial and municipal waste materials with the applications of RES2-D method and 3-D Oasis Montaj modeling: A case study at Kepong, Kuala Lumpur, Peninsula Malaysia." Journal of Hazardous Materials 406, no. : 124282.

Preprint
Published: 12 June 2020
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A novel fusion python application of data mining techniques (DMT) was designed and implemented to locate, identify, and delineate the subsurface structural pattern (SSP) of source rocks for the features of interest underlain the study area. The techniques of machine learning tools (MLT) helped to define magnetic anomaly source (MAS) rock and the various depths of these subsurface source rock features. The principal objective is to use straightforward DMT to locate magnetic anomaly features of interest that host mineralization. The required geo-referenced radiometric data, which facilitated the delineation of SSP, were sufficiently covered by combining the application of the Oasis Montaj\c{opyright} 2014 source parameter imaging functions. Relevance basic filtering techniques of data reduction were used to improve the signal-to-noise (S/N) ratio and hence automatically determine depths to the various engrossed features from gridded geo-referenced airborne magnetic datasets before the DMT application was performed. Geological source rock models (GSRM) (i.e., rock contacts, dykes) served as the delineated features based on their structural index (SI) values. The anomalies were perpendicularly oriented, with few inconsequential nonvertical features, and all were generally aligned in NNE-SSW and NE-SW directions. The DMT approach showed that magnetic anomaly patterns (MAP) control the SSP and the ground surface stratigraphy (GSS) on a geological time-scale (GTS) by fusing the subsurface gravitational structural features (SGSF) in the area. The DMT facilitated the determination of depths to these subsurface geological source rock features with a maximum depth of approximately 1.277 km using a 3x3 window size to map the concealed features of interest.

ACS Style

John Stephen Kayode; Yusri Yusup. A novel fusion Python application of data mining techniques to evaluate airborne magnetic datasets. 2020, 1 .

AMA Style

John Stephen Kayode, Yusri Yusup. A novel fusion Python application of data mining techniques to evaluate airborne magnetic datasets. . 2020; ():1.

Chicago/Turabian Style

John Stephen Kayode; Yusri Yusup. 2020. "A novel fusion Python application of data mining techniques to evaluate airborne magnetic datasets." , no. : 1.

Preprint
Published: 08 June 2020
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The fear of the invisible but prevalent Coronavirus (COVID-19), disease cannot be overemphasized since there is the potential possibility of it wiping out the entire world population within a few months if adequate and quick steps are not taken to curb this menace, and the sub-Saharan African (SSAn) region is no exception. It is evident that water, as an essential daily commodity, has long been in a state of emergency in SSAn nations, which is largely attributed to decades of neglect by the successive governments, because it has not been possible to separate the existing bond between water, health, livelihood and the economy. The laudable Millennium Development Goals (MDGs) proposed by the United Nations had yet to achieve the stated objective of improving the standards of living and health conditions of the rural communities in the SSAn region before the COVID-19 pandemic outbreak. This failure has been masked by a sort of delusion in which the people of this region are subjected to the hardship of searching for clean and healthy water in their own ponds, rivers, streams and shallow hand-dug local wells on a continuous basis. Less than 17% of the rural population in all the SSAn communities can access basic hand-washing facilities and sanitation systems. The total water productivity, as measured by the Gross Domestic Product (GDP) per cubic meter of total freshwater withdrawn, for the people was less than 5 GDP.

ACS Style

John Stephen Kayode; Asha Embrandiri; Adijat Olubukola Olateju. The Covid-19 pandemic's effects on poor rural dwellers in sub-Saharan Africa: A case study of access to basic clean water, sanitary systems and hand-washing facilities. 2020, 1 .

AMA Style

John Stephen Kayode, Asha Embrandiri, Adijat Olubukola Olateju. The Covid-19 pandemic's effects on poor rural dwellers in sub-Saharan Africa: A case study of access to basic clean water, sanitary systems and hand-washing facilities. . 2020; ():1.

Chicago/Turabian Style

John Stephen Kayode; Asha Embrandiri; Adijat Olubukola Olateju. 2020. "The Covid-19 pandemic's effects on poor rural dwellers in sub-Saharan Africa: A case study of access to basic clean water, sanitary systems and hand-washing facilities." , no. : 1.

Preprint
Published: 08 June 2020
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In this paper, we analysed real-time measurements of atmospheric CO$_2$ with total electricity production and nation-wide restrictions phases due to the novel coronavirus COVID-19 pandemic, and its effects on atmospheric CO$_2$ concentrations. A decline of 3.7% in the global energy demand at about 150 million tonnes of oil equivalent (Mtoe) in the first quarter (Q1), of 2020 was recorded, as compared to the same first quarter (Q1), of 2019, due to the cutback on global economic activities. Our results showed that: 1) electricity production for the same period in the years 2018, 2019, and 2020, shrunk at an offset of about 9.20%, which resulted in the modest reduction of about (-1.79%), in the atmospheric CO$_2$, to that of 2017-2018 CO$_2$ level; 2) a non-seasonal abrupt; but brief, atmospheric CO$_2$ decrease by about 0.85% in mid-February 2020, could be due to the Phase 1 movement restrictions in China. The results showed that, the reduction in electricity production is significant to the short-term variability of atmospheric CO$_2$. It also highlights the significant contributions from China to the atmospheric CO$_2$, which suggests that, without the national restriction of activities, CO$_2$ concentration are set to exceed 2019 by 1.79%, but it quickly decreased due to the lockdown, and sustained the reduction for two consecutive months. The results underscore the atmospheric CO$_2$ reductions on the monthly time scale that can be achieved, if electricity production from combustible sources were slashed, which could be useful for cost-benefit analyses of the reduction in electricity production from combustible sources, and the impact of these reduction to the atmospheric CO$_2$.

ACS Style

Yusri Yusup; John Stephen Kayode; Mardiana Idayu Ahmad; Chee Su Yin; Muhammad Sabiq Mohamad Nor Hisham; Hassim Mohamad Isa. Atmospheric CO$_2$ and total electricity production before and during the nation-wide restriction of activities as a consequence of the COVID-19 pandemic. 2020, 1 .

AMA Style

Yusri Yusup, John Stephen Kayode, Mardiana Idayu Ahmad, Chee Su Yin, Muhammad Sabiq Mohamad Nor Hisham, Hassim Mohamad Isa. Atmospheric CO$_2$ and total electricity production before and during the nation-wide restriction of activities as a consequence of the COVID-19 pandemic. . 2020; ():1.

Chicago/Turabian Style

Yusri Yusup; John Stephen Kayode; Mardiana Idayu Ahmad; Chee Su Yin; Muhammad Sabiq Mohamad Nor Hisham; Hassim Mohamad Isa. 2020. "Atmospheric CO$_2$ and total electricity production before and during the nation-wide restriction of activities as a consequence of the COVID-19 pandemic." , no. : 1.

Data article
Published: 23 April 2020 in Data in Brief
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The Transient Electro-Magnetic (TEM) geophysical technique was deployed to map and characterized the subsurface of Pahang River Basin along the East Coast Peninsula Malaysia. The data aimed at differentiating between the massive zones and the weak zones within the region, to also assess and differentiate the subsurface structures and comes up with recommendations for policy decision, formulation and plans on the flooding impact, surface water and groundwater managements, in addition to other environmental related issues ravaging the area. The data presented in this paper, showed the properties of the subsurface rocks underlain the region as beneficial to the Agriculturists; Climatologists; Engineers; Environmentalists; Geoscientists, Hydrologists and Policy formulation officers. The TEM data collection utilized a 100 m x 100 m single loop coil for both the Transmitter (Tx) loop and the Receiver (Rx) loop to produce a total surface area coverage of 10,000 m2 per survey line along a single profile. The total area covered in the data extended across an average area of 30 km x 40 km in parts of Maran, Temerloh and Jerantut districts, within the State of Pahang, East Coast, Peninsula Malaysia. The conductivity data recorded varied from -20 mS/m to about 440 mS/m at a maximum depth of about 375 m. On the other hand, the resistivity data recorded varied from 0 Oh-m to about 1000 Oh-m. The information derived from the data are intended for potential abstraction by the Malaysian Groundwater Management Board; the Department of Mineral and Geoscience; Department of Irrigation and Drainage; the Pahang State Water Board, and the Department of Agriculture.

ACS Style

Hariri Arifin; John Kayode; Khairul Arifin; Zuhar Zahir; Manan Abdullah; Azrin Azmi. Data for the subsurface characterization of Pahang River Basin with the application of Transient Electromagnetic geophysical surveys. Data in Brief 2020, 30, 105491 .

AMA Style

Hariri Arifin, John Kayode, Khairul Arifin, Zuhar Zahir, Manan Abdullah, Azrin Azmi. Data for the subsurface characterization of Pahang River Basin with the application of Transient Electromagnetic geophysical surveys. Data in Brief. 2020; 30 ():105491.

Chicago/Turabian Style

Hariri Arifin; John Kayode; Khairul Arifin; Zuhar Zahir; Manan Abdullah; Azrin Azmi. 2020. "Data for the subsurface characterization of Pahang River Basin with the application of Transient Electromagnetic geophysical surveys." Data in Brief 30, no. : 105491.

Journal article
Published: 31 May 2019 in Sains Malaysiana
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ACS Style

John Stephen Kayode; Mohd Hariri Arifin; Mohd Nawawi Mohd Nawawi. Characterization of a Proposed Quarry Site using Multi-Electrode Electrical Resistivity Tomography. Sains Malaysiana 2019, 48, 945 -963.

AMA Style

John Stephen Kayode, Mohd Hariri Arifin, Mohd Nawawi Mohd Nawawi. Characterization of a Proposed Quarry Site using Multi-Electrode Electrical Resistivity Tomography. Sains Malaysiana. 2019; 48 (5):945-963.

Chicago/Turabian Style

John Stephen Kayode; Mohd Hariri Arifin; Mohd Nawawi Mohd Nawawi. 2019. "Characterization of a Proposed Quarry Site using Multi-Electrode Electrical Resistivity Tomography." Sains Malaysiana 48, no. 5: 945-963.

Journal article
Published: 01 May 2019 in Regional Studies in Marine Science
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The tropical coastal ocean is a vital jigsaw-piece to understanding exchanges of energy, moisture, and carbon between the atmosphere and the ocean biospheres. Latent and sensible heat fluxes, micro-climate variables, and surface water temperature data in the atmospheric surface layer were collected using an instrumented tower at a tropical coastal ocean (5 ∘28’6”N, 100∘12’1”E). The instrumented tower was installed on a stainless-steel platform extending a pre-existing pier. Data were collected for two years, i.e., November 2015 to October 2017, which encompassed two annual cycles of the Monsoons. The first objective of this work is to describe the Monsoonal and annual patterns of latent (LE) and sensible (H) heats while the second objective is to link the micro-climate variables to the energy fluxes on the seasonal and annual time scales. The inter-annual variation of energy input into the study is minimal (3% and 4% in the values recorded for the RG and Rn). The average albedo was 0.29 and the Bowen ratio was 0.11. Annual changes in LE and H between the two years were apparent both at 14% increased and decreased, respectively. LE is largely modulated by the Monsoons, where it is higher in the Northeast Monsoon (dry and hot) than the Southwest Monsoon (wet and cold). Conversely, H did not exhibit appreciably changes with the Monsoon and mostly followed the downward Rn trend. Variations between Monsoons are ten times larger than between years, thus highlighting its significance in controlling the regional conditions. Between the Northeast and Southwest Monsoons, the change in LE, i.e., ΔLE recorded was −30% while that of H, i.e., ΔH was +18%. These results have important applications in improving numerical weather models and closing the energy budget.

ACS Style

Yusri Yusup; John Stephen Kayode; Abbas Alkarkhi. Monsoonal and annual energy fluxes variations in the atmospheric surface layer over a coastal region of the tropical ocean. Regional Studies in Marine Science 2019, 29, 100707 .

AMA Style

Yusri Yusup, John Stephen Kayode, Abbas Alkarkhi. Monsoonal and annual energy fluxes variations in the atmospheric surface layer over a coastal region of the tropical ocean. Regional Studies in Marine Science. 2019; 29 ():100707.

Chicago/Turabian Style

Yusri Yusup; John Stephen Kayode; Abbas Alkarkhi. 2019. "Monsoonal and annual energy fluxes variations in the atmospheric surface layer over a coastal region of the tropical ocean." Regional Studies in Marine Science 29, no. : 100707.

Original paper
Published: 19 February 2019 in Arabian Journal of Geosciences
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During the periods of strong winter monsoon, the occurrence of extensive floods in the low-lying areas mostly in the east coast part of the Peninsula Malaysia continually results in huge destruction to public and private utilities, damage to farmlands, and in addition, leads to loss of lives with outbreak of epidemic which prompted evacuations of hundreds of thousands from their homes and communities. This paper presents research results on the impacts of subsurface water on the east coast Peninsula Malaysian floods, therefore complementing the existing data on the flooding events in this area. In our finding, we present the vulnerability of the aquifer units in the flood-affected communities to floods during intense precipitations and then proffer suggestions to prevent near future occurrence. The partial coverage of the alteration zone that is completely nonexistent in this area should have provided the needed essential storage and transmissivity if present in the east coast Peninsula Malaysia environments. Most of the aquifer units in this part are unconfined and are opened to surface water. We applied electrical resistivity tomography methods of geophysical prospecting and borehole lithologic logs to study the subsurface structures prone to flooding in addition to the information on the rainfall data. However, the GOD vulnerability Index rating method was modified and improved upon with the additions of fluctuations of borehole water heights FBWH and the river bank heights RBH together with the topography parameters to produce the GOD-FBRT Index that better refine the method by considering the literal movement of fluids within the subsurface. The configuration of the Kelantan River basin land system as delineated by this study makes the entire east coast areas vulnerable to flooding with the degree of vulnerability as computed in the study area that ranged between 0.1 (very low) and 1.0 (very high).

ACS Style

John Stephen Kayode; Mohd Hariri Arifin; Mohd Khairul Amri Kamarudin; Azimah Hussin; Mohd Nawawi Mohd Nordin; Norsyafina Roslan. The vulnerability of the aquifer units in the flood-affected areas of the east coast Peninsula Malaysia. Arabian Journal of Geosciences 2019, 12, 146 .

AMA Style

John Stephen Kayode, Mohd Hariri Arifin, Mohd Khairul Amri Kamarudin, Azimah Hussin, Mohd Nawawi Mohd Nordin, Norsyafina Roslan. The vulnerability of the aquifer units in the flood-affected areas of the east coast Peninsula Malaysia. Arabian Journal of Geosciences. 2019; 12 (5):146.

Chicago/Turabian Style

John Stephen Kayode; Mohd Hariri Arifin; Mohd Khairul Amri Kamarudin; Azimah Hussin; Mohd Nawawi Mohd Nordin; Norsyafina Roslan. 2019. "The vulnerability of the aquifer units in the flood-affected areas of the east coast Peninsula Malaysia." Arabian Journal of Geosciences 12, no. 5: 146.

Conference paper
Published: 01 January 2019 in EAGE-GSM 2nd Asia Pacific Meeting on Near Surface Geoscience and Engineering
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ACS Style

John Stephen Kayode; H. Arifin; M. Nawawi; Amin Khalil; H. Baioumy. Characterization of the hot spring aquifers at Sungai Klah using potential fields geophysical methods. EAGE-GSM 2nd Asia Pacific Meeting on Near Surface Geoscience and Engineering 2019, 1 .

AMA Style

John Stephen Kayode, H. Arifin, M. Nawawi, Amin Khalil, H. Baioumy. Characterization of the hot spring aquifers at Sungai Klah using potential fields geophysical methods. EAGE-GSM 2nd Asia Pacific Meeting on Near Surface Geoscience and Engineering. 2019; ():1.

Chicago/Turabian Style

John Stephen Kayode; H. Arifin; M. Nawawi; Amin Khalil; H. Baioumy. 2019. "Characterization of the hot spring aquifers at Sungai Klah using potential fields geophysical methods." EAGE-GSM 2nd Asia Pacific Meeting on Near Surface Geoscience and Engineering , no. : 1.

Data article
Published: 31 December 2018 in Data in Brief
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To identify the potential zones for gold mineralization at the Felda Chiku 3, Gua Musang, Kelantan, East coast Malaysia, twenty-one (21) geophysical survey lines were conducted at the proposed mineral exploration site using the pole - dipole of the electrical resistivity and induced polarization arrays to get the maximum depth of 150 m with 400 m survey length. From the resistivity and chargeability concentration maps, the potential mineralized zones as delineated, was observed to be dominantly concentrated towards the southwest and northern part of the area. The 3D resistivity and chargeability slice model present low resistivity values and high chargeability values that are well correlated which is palpable especially at the depths of 25 m and 50 m respectively. The data showed that the potential mineralized zones are trending approximately north-south directions. Forty (40) drilling locations were proposed for follow-up drilling based on the resistivity and chargeability models.

ACS Style

Mohd Hariri Arifin; John Stephen Kayode; Muhammad Khairel Izwan; Hussein Ahmed Hasan Zaid; Hamzah Hussin. Data for the potential gold mineralization mapping with the applications of Electrical Resistivity Imaging and Induced Polarization geophysical surveys. Data in Brief 2018, 22, 830 -835.

AMA Style

Mohd Hariri Arifin, John Stephen Kayode, Muhammad Khairel Izwan, Hussein Ahmed Hasan Zaid, Hamzah Hussin. Data for the potential gold mineralization mapping with the applications of Electrical Resistivity Imaging and Induced Polarization geophysical surveys. Data in Brief. 2018; 22 ():830-835.

Chicago/Turabian Style

Mohd Hariri Arifin; John Stephen Kayode; Muhammad Khairel Izwan; Hussein Ahmed Hasan Zaid; Hamzah Hussin. 2018. "Data for the potential gold mineralization mapping with the applications of Electrical Resistivity Imaging and Induced Polarization geophysical surveys." Data in Brief 22, no. : 830-835.

Data article
Published: 03 October 2018 in Data in Brief
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Data on the micrometeorological parameters and Energy Fluxes at an intertidal zone of a Tropical Coastal Ocean was carried out on an installed eddy covariance instruments at a Muka head station in the north-western end of the Pinang Island (5°28'06''N, 100°12'01''E), Peninsula Malaysia. The vast source of the supply of energy and heat to the hydrologic and earth׳s energy cycles principally come from the oceans. The exchange of energies via air-sea interactions is crucial to the understanding of climate variability, energy, and water budget. The turbulent energy fluxes are primary mechanisms through which the ocean releases the heat absorbed from the solar radiations to the environment. The eddy covariance (EC) system is the direct technique of measuring the micrometeorological parameters which allow the measurement of these turbulent fluxes in the time scale of half-hourly basis at 20 Hz over a long period. The data being presented is the comparison of the two-year seasonality patterns of monsoons variability on the measured microclimate variables in the southern South China Sea coastal area.

ACS Style

Yusri Yusup; John Stephen Kayode; Abbas Alkarkhi. Data on micrometeorological parameters and Energy Fluxes at an intertidal zone of a Tropical Coastal Ocean. Data in Brief 2018, 21, 13 -17.

AMA Style

Yusri Yusup, John Stephen Kayode, Abbas Alkarkhi. Data on micrometeorological parameters and Energy Fluxes at an intertidal zone of a Tropical Coastal Ocean. Data in Brief. 2018; 21 ():13-17.

Chicago/Turabian Style

Yusri Yusup; John Stephen Kayode; Abbas Alkarkhi. 2018. "Data on micrometeorological parameters and Energy Fluxes at an intertidal zone of a Tropical Coastal Ocean." Data in Brief 21, no. : 13-17.

Data article
Published: 08 September 2018 in Data in Brief
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Energy Dispersive X-ray Analysis, EDX mapping, Scanning Electron Microscope, SEM, together with X-ray Fluorescence Analysis, XRF, was carried out to extract the needed data from some metamorphic rock samples in part of the Nigerian Southwestern Precambrian Basement Complex, NSPBC. The foremost aim is to obtain the detail subsurface geological structures of the rocks within the area and to enhanced understanding of the processes and the types of metamorphic evolution in the area. The techniques involved qualitative and quantitative data analysis of the major, minor and radioactive elements present in the samples of rocks analyzed. The data helped to experimentally evaluate the rocks microstructures, and to also explore the development of magmatic and metamorphic mechanisms for the recognition of textual associations in the area. Applications of the EDX, SEM, and XRF data analysis are effortlessly done to determine the varied mixtures of Si, Al, Ca, Fe, K, Mg, and Na, in the presence of O existing in the rocks samples.The data helped in the classification and perceptive of these rocks and it was considered as a necessary tool in the knowledge of the metamorphism and origin of the Basement Complex rocks through measurement of the intensity of the emitted X-ray and its characteristics.

ACS Style

J.S. Kayode; Yusri Yusup; M.N.M. Nawawi; K.S. Ariffin; A.E. Kalil; M.G. Tagwa. EDX-SEM-XRF data from selected Precambrian Basement Complex rock samples in part of Southwestern Nigeria. Data in Brief 2018, 20, 1525 -1531.

AMA Style

J.S. Kayode, Yusri Yusup, M.N.M. Nawawi, K.S. Ariffin, A.E. Kalil, M.G. Tagwa. EDX-SEM-XRF data from selected Precambrian Basement Complex rock samples in part of Southwestern Nigeria. Data in Brief. 2018; 20 ():1525-1531.

Chicago/Turabian Style

J.S. Kayode; Yusri Yusup; M.N.M. Nawawi; K.S. Ariffin; A.E. Kalil; M.G. Tagwa. 2018. "EDX-SEM-XRF data from selected Precambrian Basement Complex rock samples in part of Southwestern Nigeria." Data in Brief 20, no. : 1525-1531.

Journal article
Published: 24 August 2018 in Dynamics of Atmospheres and Oceans
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The global ocean is a net carbon dioxide uptake and a major component of the biogeochemical carbon cycle. We measured carbon dioxide flux and other microclimate variables using the eddy covariance method to determine the effects of the latter on carbon dioxide (CO2) flux in the intertidal zone of the tropical coastal ocean in the southern South China Sea. The location is in the under-sampled “Eastern Boundary Current” province of the continental shelf in the South China Sea. Fluxes and microclimate variables were collected for more than one year, which encompassed all four Monsoons. Results show that the tropical coastal ocean uptakes CO2 with an annual average of –2.10 mol C m–2 yr–1. The Monsoon cycle decreased the role of the tropical coastal ocean as a CO2 sink by 60% during the Southwest Monsoon/Fall Transitional Monsoon phase due to increased precipitation. Cluster analysis of all the parameters measured showed two main clusters, the “dry” and “wet” season clusters while factor analysis reduced the number of variables to two main factors, the “weather” and the “CO2” factors. Thus, the Monsoonal CO2 flux at the tropical coastal ocean are significantly regulated by cumulative precipitation in comparison to other variables.

ACS Style

Yusri Yusup; Abbas Alkarkhi; John Stephen Kayode; Wasin A.A. Alqaraghuli. Statistical modeling the effects of microclimate variables on carbon dioxide flux at the tropical coastal ocean in the southern South China Sea. Dynamics of Atmospheres and Oceans 2018, 84, 10 -21.

AMA Style

Yusri Yusup, Abbas Alkarkhi, John Stephen Kayode, Wasin A.A. Alqaraghuli. Statistical modeling the effects of microclimate variables on carbon dioxide flux at the tropical coastal ocean in the southern South China Sea. Dynamics of Atmospheres and Oceans. 2018; 84 ():10-21.

Chicago/Turabian Style

Yusri Yusup; Abbas Alkarkhi; John Stephen Kayode; Wasin A.A. Alqaraghuli. 2018. "Statistical modeling the effects of microclimate variables on carbon dioxide flux at the tropical coastal ocean in the southern South China Sea." Dynamics of Atmospheres and Oceans 84, no. : 10-21.

Data article
Published: 19 June 2018 in Data in Brief
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Air-sea flux exchanges influence the climate condition and the global carbon-moisture cycle. It is imperative to understand the fundamentals of the natural systems at the tropical coastal ocean and how the transformation takes place over the time. Hence, latent and sensible heat fluxes, microclimate variables, and surface water temperature data were collected using eddy covariance instruments mounted on a platform at a tropical coastal ocean station from November 2015 to October 2017. The research data is to gain the needful knowledge of the energy exchanges in the tropical climatic environment to further improve predictive algorithms or models. Therefore, it is intended that this data report will offer appropriate information for the Monsoonal, and diurnal patterns of latent (LE) and sensible (H) heats and hence, establish the relationship between microclimate variables on the energy fluxes at the peninsular Malaysian tropical coastal ocean.

ACS Style

Yusri Yusup; John Stephen Kayode; Abbas Alkarkhi. Experimental data on the air-sea energy fluxes at the tropical coastal ocean in the southern South China Sea. Data in Brief 2018, 19, 1477 -1481.

AMA Style

Yusri Yusup, John Stephen Kayode, Abbas Alkarkhi. Experimental data on the air-sea energy fluxes at the tropical coastal ocean in the southern South China Sea. Data in Brief. 2018; 19 ():1477-1481.

Chicago/Turabian Style

Yusri Yusup; John Stephen Kayode; Abbas Alkarkhi. 2018. "Experimental data on the air-sea energy fluxes at the tropical coastal ocean in the southern South China Sea." Data in Brief 19, no. : 1477-1481.

Data article
Published: 23 May 2018 in Data in Brief
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A secondary dataset was generated from the Euldph-λ semi-automatic Algorithm, (ESA) developed to automatically computes various depths to the magnetic anomalies using a primary data set from gridded aeromagnetic data obtained in the study area. Euler Deconvolution techniques, (EDT), was adopted in the identification and definition of the magnetic anomaly source rocks in the study area. The aim is to use the straightforward technique to pinpoint magnetic anomalies at a depth which substantiate mineralization potential of the area. The ESA was integrated with the imaging function of Oasis Montaj 2014 source parameter from Geosoft® Inc. From the data, it could be summarized that similar tectonic processes during the deformation and metamorphic activities, the subsurface structures of the study area produce corresponding trending form.

ACS Style

John Stephen Kayode; Yusri Yusup. Data on the evaluation of structural index from aeromagnetic enhanced datasets with the application of Euldph-λ semi-automatic algorithm. Data in Brief 2018, 19, 798 -803.

AMA Style

John Stephen Kayode, Yusri Yusup. Data on the evaluation of structural index from aeromagnetic enhanced datasets with the application of Euldph-λ semi-automatic algorithm. Data in Brief. 2018; 19 ():798-803.

Chicago/Turabian Style

John Stephen Kayode; Yusri Yusup. 2018. "Data on the evaluation of structural index from aeromagnetic enhanced datasets with the application of Euldph-λ semi-automatic algorithm." Data in Brief 19, no. : 798-803.

Journal article
Published: 17 May 2018 in MethodsX
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The southern South China coastal oceans within the South East Asian region are much lacking in the perception of the surface energy budget and evaporation over the ocean waters in response to climatic changes. The eddy covariance method was used to measure the energy fluxes, microclimate variables, and surface water temperature from November 2015 to October 2017 at the Straits of Malacca, South China Sea; Pulau Pinang, Malaysia, situated at latitude 5°28'06″N, and longitude 100°12'01″E. This work focused on the methodological approach to the air-sea energy fluxes data collection and analysis. In this regard, the method applied for the direct measurements and analysis of energy fluxes and other meteorological parameters in the site is considered and reported. •The paper summarizes the analysis of energy fluxes, microclimate variables, and surface water temperature data in a tropical coastal ocean station using the eddy covariance method.•The methodological approach illustrates the method of analysis applied in this study which can be compared and used for similar studies in other places.•The reproducible data analysis technique matches similar comparative methods such as Matlab and Python.

ACS Style

Yusri Yusup; John Stephen Kayode; Abbas F.M. Alkarkhi. A methodological approach to the air-sea energy fluxes data collection and analysis at the tropical coastal ocean. MethodsX 2018, 5, 448 -453.

AMA Style

Yusri Yusup, John Stephen Kayode, Abbas F.M. Alkarkhi. A methodological approach to the air-sea energy fluxes data collection and analysis at the tropical coastal ocean. MethodsX. 2018; 5 ():448-453.

Chicago/Turabian Style

Yusri Yusup; John Stephen Kayode; Abbas F.M. Alkarkhi. 2018. "A methodological approach to the air-sea energy fluxes data collection and analysis at the tropical coastal ocean." MethodsX 5, no. : 448-453.

Data article
Published: 02 May 2018 in Data in Brief
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The paper presents the data from the surface and subsurface mapping of this area for the purpose of siting industrial city in the area. The field data collected combine with the borehole data was to successfully apply these to solving geological, environmental and engineering complications posed by the complexity of the subsurface geological structures underlain this area. The Electrical Resistivity, (ER) and Induced Polarization, (IP) data were initially processed using RES2DINV software model to generate the depth to the lithological units together with topographic correction. The 2-D ER and IP data were collected from 23rd April 2017 up until 7th May 2017 covering a total of about 17.6 km along 44 survey lines using ABEM Terrameter SAS4000 for the field measurement. A total of 20 Borehole logs data were recorded to better characterized in-situ, the subsurface geological formations emplaced in the study area. The study area is located at Bagan Datuk, Perak Darul Ridzuan situated on Latitude 2° 44.653'N and Longitudes 104° 28.79' E along the west coast Peninsula Malaysia. The topography of the area is generally flat low–laying and elevation range from about 0 m to 32 m above mean sea level (MSL).

ACS Style

Mohd Hariri Arifin; John Stephen Kayode; Muhammad Azrief Azahar; Habibah Jamil; Saznira Fadila Ahmad Sabri. Data for in-situ industrial site characterization with the applications of combined subsurface and surface mapping. Data in Brief 2018, 18, 1864 -1868.

AMA Style

Mohd Hariri Arifin, John Stephen Kayode, Muhammad Azrief Azahar, Habibah Jamil, Saznira Fadila Ahmad Sabri. Data for in-situ industrial site characterization with the applications of combined subsurface and surface mapping. Data in Brief. 2018; 18 ():1864-1868.

Chicago/Turabian Style

Mohd Hariri Arifin; John Stephen Kayode; Muhammad Azrief Azahar; Habibah Jamil; Saznira Fadila Ahmad Sabri. 2018. "Data for in-situ industrial site characterization with the applications of combined subsurface and surface mapping." Data in Brief 18, no. : 1864-1868.